NavNet Service Manual b 7.19.2002

MODEL 17XX/17XXCMODEL 1833/1833CMODEL 19XX/19XXCGP-310BETR-6/10N

Your Local Agent/DealerYour Local Agent/Dealer

9-52 Ashihara-cho,9-52 Ashihara-cho,Nishinomiya, JapanNishinomiya, Japan

Telephone :Telephone : 0798-65-21110798-65-2111Telefax :Telefax : 0798-65-42000798-65-4200

FIRST EDITION :FIRST EDITION : DEC.DEC. 20012001Printed in JapanPrinted in JapanAll rights reserved.All rights reserved.B :B : JUL.JUL. 19,200219,2002

PUB.No.PUB.No. SME-34940-BSME-34940-B

(( KAOKKAOK )) NAVNETNAVNET

*SME34940B00**SME34940B00**SME34940B00**SME34940B00*

* S M E 3 4 9 4 0 B 0 0 ** S M E 3 4 9 4 0 B 0 0 *

KIMURAAP2-1

KIMURAAP2-2

KIMURAAP2-3

KIMURAAP2-4

KIMURAAP2-5

KIMURAAP2-6

KIMURAAP2-7

KIMURAAP3 - 1

2/4 SPU Board The SPU board, 03P9354 is designed to receive video signal of linear type. Test points on the board function as below. This board is connected to the video IF amplifier of linear type.

TP No. Signal Rating Condition TP1 VIDEO INPUT Approx. 4 Vpp (Main Bang Level) TP2 HD 5 V, Negative (0V) TP3 TX TRIG 9 to 12 Vpp positive, approx. 8 to 12 us

Short range: 1950 to 2250 Hz Midium range: 1100 to 1300 Hz Long range: 550 to 650 Hz

TP4 BP 5 Vpp (180 Hz, 450 pulse/rotation) TP5 PW_A Short pulse: H, Medium pulse: L, Long pulse: L TP6 PW_B Short pulse: H, Medium pulse: H, Long pulse: L TP7 VIDEO OUT Approx. 4 Vpp (Main Bang Level)

TX

TP8 Remote Controller Input data

A 5V pulse appears when signal is received from the remote control unit. Noise is observed at the absent of the signal.

TP9 Power OFF (to PTU) H: OFF, L: Normal TP10 RESET RESET: H, NORMAL: L TP11 CPU CLK OUT 45 MHz TP12 Det Battery Level Normal: L, Error: H (approx 2.7 V) TP13 GND

TP2 TP3 TP4 TP6

TP8

TP10 TP12 TP11

TP13

TP1 TP7

TP5

S1

Fig. 1 SPU Board (03P9354)

KIMURAAP3 - 2

3/4

S1 Setting on SPU Board

SW # OFF ON 1 Model GD

2 Not used

INV Board INV board, 03P9355 is an Inverter for LCD backlighting and it is piggyback-mounted onto the SPU board, 03P9354.

MCN Board MCN board, 03P9358 is a Connector conversion board for the LCD unit. INT Board INT board, 03P9357 is newly developed for M1723C to rotate the antenna at a speed of 30 rpm in short range.

Fig. 2 INV Board (03P9355)

Fig. 3 MCN Board (03P9358)

Fig. 4 INT Board (03P9357)

KIMURAAP3 - 3

4/4

Fig. 5 Block Diagram of INT board, 03P9357

Schematic Diagrams attached

Display unit (Model series) C3515-K02 S-1 Display unit (GD-1710C) C4426-K01 S-2 INV board 03P9355 C3515-K03 S-3 MCN board 03P9358 C3515-K05 S-4 M1723C Scanner unit C3515-K01 S-5 INT board 03P9357 C3515-K04 S-6

To Motor B801

+5 V Control Circuit, Q5

+5V MD (From MD board)

+5 V INT for ICs on INT board (Vcc for U1 to U6)

MOTOR+ (Motor on/off signal)

Oscillator U1

PLL U4

CounterU3

F/F U2

Driver Q1 to Q4

Counter U5 BP (450)

AC RAIN Circuit

CR5, Q8 To IF AMP

TX TRIG AC RAIN

To IF AMP -6 V, +5 V, +12V

To MD board

PL-A and PL-B

Counter U6

PL-A

KIMURAAP3 - 4

KIMURAAP3 - 5

KIMURAAP3 - 6

KIMURAAP3 - 7

KIMURAAP3 - 8

KIMURAAP3 - 9

KIMURAAP3 - 10

CONTENTS

Chapter 1. General 1.1 General......................................................................................................1-1 1.2 About The NavNet ...................................................................................1-2 1.3 NavNet cables ...........................................................................................1-5 1.4 Connection to hub....................................................................................1-6 1.5 Notice on making NavNet network ........................................................1-6 1.6 Network setup ..........................................................................................1-9 1.7 ARP Function ...........................................................................................1-12 1.8 Connection of ETR ..................................................................................1-13 1.9 Differences between NavNet products ...................................................1-14 1.10 Special keystrokes ..................................................................................1-15 1.11 Boards & Major Components...............................................................1-16 1.12 Specifications..........................................................................................1-18 1.13 Radar Antenna Compatibility ..............................................................1-22 1.14 Detail of Input/Output Data and Signals.............................................1-23 1.15 Sub-display Function.............................................................................1-24

Chapter 2. Circuit Description 2.1 General......................................................................................................2-1 2.2 Function of Board (Display Unit) ...........................................................2-3 2.3 SPU board.................................................................................................2-4

2.3.1 Auto Tuning Function .........................................................................2-8 2.3.2 Manual tuning .....................................................................................2-9 2.3.3 Tuning Indication ................................................................................2-9 2.3.4 Video Level Adjustment (03P9288/19P1001) ....................................2-9 2.3.5 Echo Averaging (EAV)........................................................................2-10

2.4 ARP Function (optional) .........................................................................2-11 2.5 PWR Board ..............................................................................................2-14 2.6 NTSC/PAL I/F Board (19P1004, optional) ............................................2-18 2.7 Output signal to remote display unit......................................................2-19 2.8 Scanner unit .............................................................................................2-20

2.8.1 Modulator board..................................................................................2-21 2.8.2 IF amplifier board................................................................................2-32 2.8.3 MIC .....................................................................................................2-34

CONTENTS

Chapter 3. Location of Parts 3.1 GPS Antenna Unit (GP-310B) ................................................................3-1 3.2 Network Sounder Unit (ETR-6/10N) .....................................................3-2 3.3 Display Unit (MODEL 17xx, GD-1700).................................................3-3 3.4 Display Unit (MODEL 17xxC, GD-1700C)...........................................3-5 3.5 Display Unit (MODEL 1833/1933/1943)................................................3-9 3.6 Display Unit (MODEL 1833C/1933C/1943C, GD-1900C)...................3-14 3.7 Scanner Unit (MODEL 1722/1722C).....................................................3-19 3.8 Scanner Unit (MODEL 1732/1732C, MODEL1833/1833C)................3-21 3.9 Scanner Unit (MODEL 1742/1742C).....................................................3-23 3.10 Scanner Unit (MODEL 1762/1762C)...................................................3-25 3.11 Scanner Unit (MODEL 1933/1933C) ...................................................3-28 3.12 Scanner Unit (MODEL 1943/1943C)...................................................3-32

Chapter 4. Adjustment 4.1 Adjusters ..................................................................................................4-2 4.1.1 MAIN (20P8170) Board-ETR-6/10N .................................................4-2 4.1.2 SPU (03P9280) Board MODEL 1722/1732/1742/1752/1762...........4-3 4.1.3 SPU (03P9286) Board MODEL 1722C/1732C/1742C/1762C.........4-4 4.1.4 SPU (03P9288) Board MODEL 1833/1933/1943.............................4-5 4.1.5 SPU (19P1001) Board MODEL 1833C/1933C/1943C, GD/GP-1900C...................................4-6 4.1.6 PWR (03P9282) Board GD/GP-1700/1700C....................................4-7 4.1.7 PWR (03P9283) Board MODEL 1722/1722C/1722/1732/1732C/1742/1742C/1762/1762C ...4-8 4.1.8 PWR (19P1005) Board MODEL 1833C/1933C/1943C, GD/GP-1900C...................................4-9 4.1.9 CRT (A1QA90SPXX) MODEL 1833/1933/1943.............................4-10 4.1.10 PIP (19P1004) Board MODEL 1833C/1933C/1943C, GD/GP-1900C...................................4-12 4.1.11 ARP (18P9013) Board........................................................................4-13 4.1.12 INT (03P8630) Board MODEL 1742/1742C ..................................4-14 4.1.13 INT (03P9298) Board MODEL 1722/1722C ..................................4-15

4.1.14 IF AMP (IF-7758C) Board MODEL 1742/1742C ..........................4-16

CONTENTS

4.1.15 IF AMP (IF-9214) Board MODEL 1833/1833C/1933/1933C/1943/1943C...............................4-17

4.1.16 IF AMP (03P9215) Board MODEL 1732/1732C/1762/1762C.......4-18 4.1.17 IF AMP (03P9269) Board MODEL 1722/1722C............................4-19 4.1.18 MODULATOR (03P9235) Board MODEL 1943/1943C................4-22 4.1.19 MODULATOR (03P9235A) Board MODEL 1762/1762C/1933/1933C...................................................4-24 4.1.20 MODULATOR (03P9270) Board MODEL 1722/1722C................4-25 4.1.21 MODULATOR (MD9208) Board

MODEL 1732/1732C/1833/1833C.....................................................4-29 4.1.22 MODULATOR (MD9052A) Board MODEL 1742/1742C .............4-30 4.1.23 PTU-9335 MODEL 1732/1732C/1833/1833C................................4-31

Chapter 5. Maintenance 5.1 Dip Switch.................................................................................................5-1 5.2 Jumper Settings........................................................................................5-2 5.3 Clearing Memory ...................................................................................5-3 5.4 Replacement of Major Parts ...................................................................5-5 5.5 How to update NavNets software via Ethernet ....................................5-9 5.6 Program Numbers....................................................................................5-12

Supplement A. Network sounder, ETR-6/10N 1. Circuit description .....................................................................................A-1

1.1 Digital circuit .........................................................................................A-2 1.2 Transmitter circuit..................................................................................A-3 1.3 Receiver circuit ......................................................................................A-3 1.4 Power supply circuit ..............................................................................A-4 1.5 Connector pin assignment......................................................................A-5

2. Location of parts ......................................................................................A-6 3. Jumpers.....................................................................................................A-6 4. Adjustment ...............................................................................................A-7 5. LEDs ..........................................................................................................A-8 6. Test points .................................................................................................A-8 7. Transducer Check ....................................................................................A-9

7.1 Measuring capacitance...........................................................................A-9 7.2 Measuring impedance at resonant point ................................................A-9

CONTENTS

7.3 Measuring resonant frequency...............................................................A-10 7.4 Resonance waveforms ...........................................................................A-13

Supplement B. Radar Simulation Data ...................................B-1

Supplement C. MODEL 1953C 1. General .....................................................................................................C-1 2. Power Supply Unit PSU-005 .................................................................C-2 3. Transceiver Unit (RTR-060) .................................................................C-6 4. Adjustment of Scanner Unit .................................................................C-10

Exploded View ......................................................................................D-1 Mechanical Parts List .......................................................................M-1 Electrical Parts List ............................................................................E-1 Schematic Diagrams .........................................................................S-0A

Chapter 1. General

1-1

1.1 General Furunos NavNet is the Ethernet based high-speed network. NavNet products will allow us to customize marine electronics according to users needs with simple cablings. All display units are capable of controlling any component connected to the NavNet network. NavNet series include;

1) 7-inch monochrome radar/video plotter: Model 1722/1732/1742/1752/1762 2) 7-inch color radar/video plotter: Model 1722C/1732C/1742C/1752C/1762C 3) 10-inch monochrome CRT radar/video plotter: Model 1833/1933/1943 4) 10.4-inch color LCD radar/video plotter: Model 1833C/1933C/1943C 5) 7-inch monochrome STN LCD Video plotter: GD-1700 6) 7-inch monochrome color TFT LCD Video plotter: GD-1700C 7) 10.4-inch color TFT LCD video plotter: GD-1900C 8) Network sounder: ETR-6/10N 9) GPS receiver antenna: GP-310B

The GPS receiver antenna GP-310B looks like an antenna, but it is a compact 12-channel GPS receiver.

The IF amplifier used on the NavNet series radars differs from model to model: Model 1722/1722C/1732/1732C/1742/1742C/1752/1752C/1762/1762C uses Linear IF amplifier, while Model 1833/ 833C/1933/933C/1943/1943C uses Logarithmic IF amplifier.

An Ethernet repeating hub needs to be arranged locally for a multiple display system.

* Ethernet is a trade mark of Xerox corporation, registered in U.S. and other countries.

Model 1953C : See Supplement C.

1.2 About The NavNet

1-2

1.2 About The NavNet The following describes more details about NavNet. The NavNet is a baseband network that provides a single channel for communications across the physical medium (e.g., cable), so only one device can transmit at a time. An analogy is a single phone lines such as you usually have to your house: Only one person can talk at a time if more than one person wants to talk everyone has to take turns. Data travels in packets on a network. Packets are transmitted in standard Ethernet frames. The Ethernet header contains the destination and source addresses and the Ethernet type code. The data field immediately follows the header.

+- - - - - - - -+

| 6 byte | Destination Address | | +- - - - - - - -+

| 6 bytes | Source Address Header | | +- - - - - - - -+

| 2 bytes | Type field | | +- - - - - - - -+

| ?? bytes | Data | | +- - - - - - - -+

Figure 1.1 Packet The NavNet supports a 10 Mb/s transmission rate over two pairs of Category 3 shielded twisted pair (STP) cabling. The NavNet protocol is TCP/IP and the media access control mechanism used by the NavNet is CSMA/CD (Carrier Sense Multiple Access). Table 1 compares the NavNet with different physical types of Ethernet.

Table 1.1 NavNet vs. Ethernet

10Base5 10Base2 10Base-T 100Base-T2 NavNet Cable type Single

50-ohm coaxial cable (10mm thick)

Single RG 58 coaxial cable (5mm thick)

Two pairs of 100-ohm Category 3 or better unshielded twisted pair (UTP) cabling

Two pairs of 100ohm Category 3 or better unshielded twisted pair (UTP) cabling

Two pair of Category 3 shielded twisted pair (STP) cabling

Transmission rate

10M bps 10M bps 10M bps 100M bps 10M bps

Maximum segment length in meter

500 185 m 100 m 100 m 30 m

Maximum number of transceiver per segment

100 30 2 2 2

Maximum network length in meter

2500 (5 segments)

925 (5 segments)

200 (one hub)

200 (one hub)

60 (one hub)

Connector RJ-45 RJ-45 RJ-45 RJ-45 MJA6


1-3

All NavNet connections are point-to-point. This implies that a NavNet cable can have a maximum of two NavNet transceivers with one at each end of the cable. One end of the cable is typically attached to an Ethernet repeating hub or an active hub. The other end is attached directly to a NavNet product, which includes a NavNet network interface card (NIC). Two NavNet products may be directly attached to each other without a hub. In this case, a crossover cable (type: MJA6SPF0014), of which each end is terminated with a 6 position MJ connector, is used: one pair of wires is used for transmitting data, and the other pair for receiving data. When attaching a NavNet product to a repeating hub, a normal straight through cable is used and the cross over function is performed inside the repeating hub. In practically, when the NavNet is connected to the hub, a NavNet conversion cable (type: MJ-A6SRMD/TM11AP8-005) is required.

The run length of NavNet cables is limited to 30 meters. The point-to-point cable connections of the NavNet result in a star topology for the network. A star topology consists of a central hub with point-to-point links that appear to radiate out from the center like light from a star. The star topology simplifies maintenance, allows for faster troubleshooting, and isolates cable problems to a single wiring link.

(1) What is a hub? A hub is a common wiring point for star-topology networks. Hubs have multiple ports to attach the different cable runs. Hubs do not read any of the data passing through them and are not aware of a packets source or destination. Essentially, a hub simply receives incoming packets, possibly amplifies the electrical signal, and broadcasts these packets out to all devices on the network. Typically speaking, three different types of hub exist: 1) Passive 2) Active 3) Intelligent

Passive hubs do not amplify the electrical signal of incoming packets before broadcasting them out to the network. Active hubs, on the other hand, will perform this function - - a function that is also present in a different type of dedicated network device called a repeater. Some people use the term concentrator when referring to a passive hub and the term multiport repeater when referring to an active hub. The NavNet uses an active hub. Intelligent hubs add extra features to an active hub that are of particular importance to businesses.


1-4

(2) Cable Category Specifications EIA/TIA category specification provides for the following cable transmission speeds with specifications.

Table 1.2 Cable categories

Category Data rate (Max.) Remarks 1 No performance criteria 2 4Mb/s Used for telephone wiring 3 16Mb/s Used for Ethernet 10Base-T 4 20Mb/s Used for 10Base-T 5 100Mb/s Used for 100Base-T, 10Base-T

(3) What happens when a collision occurs? A collision occurs when two devices transmit at exactly the same time. Since only one device can transmit at a time, both devices back off and attempt to retransmit again. Each device waits a random amount of time and the two are very likely to retry at different times. Thus the second one will sense that the network is busy and wait until the packet is finished. If the two devices retry at the same time, they will collide again, and the process repeats until either the packet finally makes it onto the network without collisions.

1.3 NavNet cables

1-5

1.3 NavNet cables The table lists the NavNet cables.

Table 1.3 NavNet cables

Parts Name Type Code No. Remarks MJ NavNet cable MJ-A6SPF0014-010 000-144-421 1m, cross,

6-pin MJ (female)/6-pin MJ (female) MJ NavNet cable MJ-A6SPF0014-050 000-144-422 5m, cross,




6-pin MJ (female)/6-pin MJ (female) NavNet conversion cable

MJ-A6SRMD/TM11AP8-005 000-144-463 50cm, cross, 6-pin MJ (male)/8-pin RJ-45 (jack)

MJA6SP MJA6SP 1 < - - [TX+] - - - - - - - [RX+] - - >3 2 < - - [TX-] - - - - - - - [RX-] - - >4 3 < - - [RX+] - - - - - - [TX+] - - >1 4 < - - [RX-] - - - - - - - [TX-] - - >2 5 < >5 6 < - - - - - - - - shield - - - - - - - - >6

Figure 1.2 Wiring Diagram (MJ-A6SPF0014)

MJA6SR RJ45 1 < - - [TX+] - - - - - - - [RX+] - - >3 2 < - - [TX-] - - - - - - - [RX-] - - >6 3 < - - [RX+] - - - - - - [TX+] - - >1 4 < - - [RX-] - - - - - - - [TX-] - - >2 5 < >5 6 < - - - - - - - - shield - - - - - - - - >shield

Figure 1.3 Wiring Diagram (MJ-A6SRMD/TM11AP8-005)

1.4 Connection to hub

1-6

1.4 Connection to hub The NavNet series is connected to the hub by using an optional NavNet conversion cable.

Figure 1.4 Cabling to hub with MJ/RJ NavNet cables

1.5 Notice on making NavNet network In the NavNet network, 1) An Ethernet hub is required to connect three or more NavNet products. 2) Only one hub is used. 3) The cable length between the hub and the NavNet product should not exceed 35 meters. 4) The cable length between the NavNet products should not exceed 30 meters. 5) The radar displays own radar picture only. 6) One radar in the network can be equipped with an optional target autoplotter.

The following illustrations show typical connections of NavNet products.

Figure 1.5 One station system

MJA6SPF0014-XXX MJA6SRDMD/TM11AP-005 Local Supply

Hub MJ MJ MJ RJ-45

M1833C

1.5 Notice on making NavNet network

1-7

Figure 1.6 Two station system

Figure 1.7 Three station system

M1833C

GD-1700C

Network Sounder

HUB

M1833C

GD-1700C

1.5 Notice on making NavNet network

1-8

Figure 1.8 Four station system

GD-1700C

M1833C GD-1900C

Network Sounder

HUB

1.6 Network setup

1-9

1.6 Network setup The NavNet uses TCP/IP data communication protocol. TCP/IP is a set of protocols which allow cooperating computers to share resources across a network. TCP stands for Transmission Control Protocol (TCP) and IP for Internet Protocol. IP provides the basic packet delivery service for the NavNet. The IP protocol implements a system of logical host addresses called IP addresses. The IP addresses are used by the NavNet to identify devices and to perform internetwork routing. IP is a connectionless protocol, which means that IP does not exchange control information (called a handshake) to establish an end-to-end connection before transmitting data.

The IP addresses are assigned to the NavNet display units before shipment as below. It is necessary to change the last three digits of the IP address when like models are used in a network. Never set the same IP address in the network. The three digits is any number between 001 and 254.

Table 1.4 IP addresses of NavNet products (Factory-default) Model IP ADDRESS HOST NAME

MODEL1722/1732/17421752//1762 172.031.003.004 RADAR MODEL1722C/1732C/1742C/1752C/1762C 172.031.003.001 RADAR MODEL1833/1933/1943 172.031.003.002 RADAR MODEL1833C/1933C/1943C 172.031.003.003 RADAR GD-1700/1700C 172.031.014.001 PLOTTER GD-1900C 172.031.003.003 PLOTTER ETR-6/10N 172.031.092.001 SOUNDER

The IP address is set in the NETWORK SETUP menu (Special Hidden Keystroke). See figure below.

IP ADDRESS172.031.003.001

HOST NAMERADAR________

RADAR SOURCERADAR________

CHART SOURCE______________

______________

______________

SOUNDER SOURCESOUNDER_____

SUBNET MASK255.255.000.000

GATEWAY ADDRESS000.000.000.000

OFFSET PORT NUMBER10000

RETURN

NETWORKSETUP

EDIT

Figure 1.9 NETWORK SETUP menu (ex. MODEL1722C series)

1.6 Network setup

1-10

In addition to the entry of the IP address, Host name, Radar source, Chart source, and Sounder source must be entered to get various display modes and display combinations in the NETWORK SETUP menu.

1) Host Name: Type a name for own display unit to distinguish it from others in the network. The factory-default is shown in the above table. The name can contain figures.

2) Radar Source: Type the host name of the display unit from which the radar picture is received. This line is factory-set to RADAR for Model series display unit which comes with the scanner unit.

3) Chart Source: Type the host name of the display unit from which the chart data is received or which has chart card in its slot to use. A maximum of three units, excluding own display unit are preset on three lines.

4) Sounder Source: Factory-default is SOUNDER to connect the network sounder ETR-6/10N to the network. When the ETR-6/10N is not connected, blank this line so that the sounder symbol in the display selection window is disabled with a red X mark.

Subnet mask, Gateway address, and Offset port number are not used. Never change these values. (SUBNET MASK: 255.255.000.000; GATEWAY ADDRESS: 000.000.000.000; and OFFSET PORT NUMBER: 10000)

Radar source and sounder source are also selectable through the user accessible Select source menu. When two radars or more are connected in the network, either of them is selected through the Select source menu by the user. Note that at the moment, one netsounder can be used in the network. The Sounder option is for future-use.

Important! The same radar source should be selected on the NavNet plotter display units. Never select different radar source on each plotter display unit if two radars and plotters are in the network. For example, in the network shown in the figure below, radar source must be selected to either M1943C or M1833C on both plotters.

Table 1.6 shows the example of setup menu setting for a network shown in Figure 1.10.

Table 1.5 Example of setup menu setting (1) Display Unit Host name Radar source Chart source Sounder source

M1943C M1943C M1943C GD19 SOUNDER GD1700C GD17 M1943C GD19, M1943C SOUNDER GD1900C GD19 M1943C M1943C SOUNDER ETR-6/10N SOUNDER (fixed) No menu No menu No menu

1.6 Network setup

1-11

Figure 1.10 Example of a NavNet network, one radar

Table 1.7 shows the example of setup menu setting for a network shown in Figure 1.11.

Table 1.6 Example of setup menu setting (2) Display Unit Host name Radar source Chart source Sounder source

M1943C M1943C M1833C Blank GD1700C GD17 M1943C, M1833C Blank GD1900C GD19 M1943C, M1833C Blank M1883C M1833C

See Table 1.8.

M1943C Blank

The following radar source combinations are possible for a network shown in Figure 1.11.

Table 1.7 Selection of radar source

Display Unit Radar source (example 1)

Radar source (example 2)



M1943C M1943C M1943C M1833C M1943C GD1700C M1943C M1833C M1833C M1943C GD1900C M1943C M1833C M1833C M1943C M1833C M1833C M1833C M1833C M1943C

Figure 1.11 Example of a NavNet network, two radars

M1943C ARP *1

HUB GD-1700C

SC-60, PG-1000

GP-310B

M1833C *1

!

#

GD-1900C

M1943C ARP *1

HUB GD-1700C

SC-60, PG-1000

GP-310B

GD-1900C *1

!

ETR-6/10N

1.7 ARP Function

1-12

1.7 ARP Function In the network shown in Figure 1.12, the radar sends following signals to the plotter.

1) Radar picture 2) Heading data from SC-60 or PG-1000 3) LL and speed data from GP-310B 4) ARP TTM data

Figure 1.12 Signals between radar and plotter

The radar picture includes Heading data so that the display in HU, NU, or CU mode is available on the plotter. TTM data is switched on and off through OUTPUT THROUGH NETWORK menu. A target is acquired and tracking target is erased from the plotter. Note that only one radar in the network can be quipped with ARP board. Table below summarizes controls of radar picture and ARP targets.

Table 1.8

Display unit Mode selection (HU/NU/CU) Radar signal processing ARP function

Mode which displays TTM

M1943C Possible Controlling own radar picture.

Acquiring and Deleting a target

Radar, Plotter, and Combination modes

GD-1700C Possible Controlling own radar picture.

Acquiring and Deleting a target

Radar, Plotter, and Combination modes

In the network shown in Figure 1.11, 1) with the radar source selection of example 4, a target can be acquired and a tracking target can be erased from all display units; 2) with example 1, M1833C cannot control ARP on the M1943C if M1833C displays own radar picture on the screen; and 3) with example 3, ARP target does not appear on the screen.

Table 1.9 ARP vs. radar source setting

Display Unit Radar source

ARP Radar source

ARP Radar source

ARP Radar source

ARP

M1943C M1943C Yes M1943C Yes M1833C No M1943C Yes GD1700C M1943C Yes M1833C No M1833C No M1943C Yes GD1800C M1943C Yes M1833C No M1833C No M1943C Yes M1833C M1833C No M1833C No M1833C No M1943C Yes

Yes: ARP target is displayed and controlled.

M1943C ARP

GD-1700C

SC-60, PG-1000

GP-310B

1) Radar picture 2) Heading data from SC-60 or PG-1000 3) LL and speed data from GP-310 4) ARP TTM data

Acquiring and deleting target

1.8 Connection of ETR

1-13

1.8 Connection of ETR If the ETR receives the interfere from the echo sounder even when Interference Rejecter is turned on, the connection of the external KP is required as below. Drill a hole on the chassis of the ETR to pass through the cable.

Figure 1.13 Connection of External KP

How to make factory reset for IP address To get factory default setting of IP address and Host name, 1. Put a jumper between J8 #1 and #2, and between J8 #7 and #8. 2. Turn on the ETR.

CR1 lights and then blinks when the reset is complete.

Figure 1.14 ETR-6/10N with cover removed

ETR6/10N YETR6/10N YETR6/10N YETR6/10N Y

1 2 3 4

EXTKP_IN

EXTKP_OUT

J4

EXTKP_OUT

J8

J4

CR1

1.9 Differences between NavNet products

1-14

1.9 Differences between NavNet products (1) Between MODEL 17XX/17XXC and GD/GP-1700/1700C

Table 1.10

Item MODEL 17XX/17XXC GD/GP-1700/1700C Radar connector (DJ) Provided Not provided PWR board 03P9283 03P9282 DIP SW setting on SPU board (#1, S1) OFF ON

(2) MODEL 1722/1722C/1732/1732C/1742/1742C/1762/1762C Antenna type is set as below in the Radar setup menu/Installation setup/system configuration.

Table 1.11

Models Antenna Type Remarks MODEL 1722/1722C A (24 nm) Radome MODEL 1732/1732C B (36 nm) Radome MODEL 1742/1742C/1752/1752C C (36 nm) Open MODEL 1762/1762C D (48 nm) Open

In watch man mode, radome type antenna stops rotating and open type antenna rotates at STBY.

(3) Between MODEL 18X/19XC and GD/GP-1900C Radar source and Host name in the system setup menu are set as below at installation.

Table 1.12

Models Host name Radar source MODEL 18XXC/19XXC RADAR (default) RADAR, same as host name GD/GP-1900C PLOTTER (default) Blank or host name of radar display unit

(4) MODEL 1833/1833C/1933/1933C/1943/1943C Antenna type is set as below in the Radar setup menu/Installation setup/system configuration.

Table 1.13

Models Antenna Type Remarks MODEL 1833/1833C B (36 nm) Radome MODEL 1933/1933C F (48 nm) Open MODEL 1943/1943C G (64 nm) Open


1.9 Differences between NavNet products

1-15

(5) Warm-up time The warm-up period differs from set to set.

Table 1.14

Models Warm-up time MODEL 1722/1722C 1:00 MODEL 1732/1732C 1:30 MODEL 1742/1742C/1752/1752C 1:30 MODEL 1762/1762C 1:30 MODEL 1833/1833C 1:30 MODEL 1933/1933C 1:30 MODEL 1943/1943C 1:30

(6) Comparisons of radar antenna

Table 1.15

Type Max. range Ant. type PWR Remarks A 24 nm Radome 2 kW MODEL 1722/1722C B 36 nm Radome 4 kW MODEL 1732/1732C/1833/1833C C 36 nm Open 2 kW MODEL 1742/1742C/1752/1752C D 48 nm Open 4 kW MODEL 1762/1762C E 48 nm Radome Not used F 48 nm Open 4 kW MODEL 1933/1933C G 64 nm Opne 6 kW MODEL 1943/1943C


(7) 300cd vs. 700cd (MODEL 1833C/1933C/1943C) a) Type of display unit differs. 300cd : RDP-138; 700cd : RDP-139 b) Type of LCD unit including the chassis differs. c) One fan motor is used for 300cd and two fan motors for 700cd. d) 300cd LCD is connected to J104 on the SPU board and 700cd to J105.

1.10 Special keystrokes Following summarizes the special keystrokes used for NavNet series products. 1) Installation menu: Power on while holding down [MENU]. 2) Count down timer bypass:

Press [ENT] five times while holding down the fourth softkey (ST-BY) from top. 3) Complete Radar Installation menu reset:

Select Radar setup menu in the Installation menu, and then, select Next page. Press [CLEAR] key five times while holding down the fourth softkey from top.

1.11 Boards & Major Components

1-16


DISPLAY UNIT

Board Name MODEL 1722/1732/1742/1752/1762 MODEL 1722C/1732C/1742C/1752C/1762C

SPU Board 03P9280 03P9286 NET Board 03P9284 PWR Board 03P9283 PANEL Board 03P9281 LCD Unit F-51232NF JR-SFW EDTCA14QEF

Board Name GD-1700 GD-1700C SPU Board 03P9280 03P9286 NET Board 03P9284 PWR Board 03P9282 PANEL Board 03P9281 LCD Unit F-51232NF JR-SFW EDTCA14QEF

* Model 17XX and GD/GP-1700 use different type of PTU board and same SPU board with different Dip Switch settings.

* Display Unit of Model series has a DJ connector, but that of GD/GP does not.

Board Name MODEL 1833/1933/1943 MODEL 1833C/1933C/1943C GD-1900C

SPU Board 03P9288 19P1001 CRD Board - 19P1003 NET Board 03P9284 PWR Board 03P9296 19P1005 FILTER Board 03P9304 - PANEL Board 03P9287 19P1002 INT Board 03P9290 - ARP Board (Optional) 18P9013 (MODEL series only) PIP Board(Optional) - 19P1004 MCN Board - 19P1007 (300cd) CRT/LCD Unit A1QA90SPXX NL6488BC33-31 (300cd)

104MU-1 (700cd) * Difference between Model 18XX/19XXc and GD-1900c is menu settings. * Display type of RDP-138 is 300cd and RDP-139 is 700cd.


1-17

SCANNER UNIT Board Name

MODEL 1722 1722C

MODEL 1732 1732C

MODEL 1742 1742C

MODEL 1752 1752C

MODEL 1762 1762C

SCANNER Unit RSB-0087 RSB-0071 RSB-0047 RSB-0091 RSB-0070 RF Unit RTR-070 RTR-058 RTR-051 RTR-069 RTR-065 MODULATOR Board 03P9270 MD-9208 MD-9052A 03P9309 03P9235 A

IF AMP Board 03P9299 (Linear AMP)

IF-9215 (Linear AMP)

IF-7758C (Linear AMP)

03P9310 (Linear AMP)

IF-9215 (Linear AMP)

INT Board/RTB Board 03P9298 03P8630 03P9311 03P9249 PWR Board PTU-9335 03P9315

MIC

RU-9458 (Original) RU-9458A (Current)

RU-9360 (Original) RU-9390C (Current)

SRX-25, A RU-9390 RU-9390

Magnetron E3588 E3571 MG5388 MAF1421B

E3587 E3571 MG5388 MAF1421B MG5248

E3571 MG5388 MAF1421B MG5248

Circulator Including MIC FCX73 FCX71 RC-4356 RC-4356

Scanner Motor RM-9455 RM-9087A RM-8577 RM-8629 RM-8025 (24rpm) RM-8711 (48rpm)

Signal Cable S03-87-XX S03-88-XX S03-90-XX S03-90-XX S03-89-XX

Board Name MODEL 1833

1833C MODEL 1933

1933C MODEL 1943

1943C

SCANNER Unit RSB-0071 RSB-0070 (24rpm) RSB-0073 (48rpm) RSB-0070 (24rpm) RSB-0073 (48rpm)

RF Unit RTR-057 RTR-064 RTR-059 MODULATOR Board MD-9208 03P9235 A 03P9235 IF AMP Board IF-9214 (LOG AMP) IF-9214 (LOG AMP) IF-9214 (LOG AMP) INT Board 03P9249 03P9249 MIC RU-9360 RU-9390 RU-9390

Magnetron E3571, MG5248 MAF1421B

E3571, MG5388 MAF1421B, MG5248

MG5389 E3560

Circulator FCX73 RC-4356 RC-4356

Scanner Motor RM-9087A RM-8025 (24rpm) RM-8711 (48rpm) RM-8025 (24rpm) RM-8711 (48rpm)

Signal Cable MJ-BJ24LPF0002-XX MJ-BJ24LPF0005-XX MJ-BJ24LPF0005-XX

GPS RECEIVER ANTENNA Board Name GP-310B

PWR-IF Board 20P8170 GPS Board GH-79L1A-P

NETWORK SOUNDER Board Name ETR-6/10N

MAIN Board 02P6294 NET Board 03P9284

1.12 Specifications

1-18

1.12 Specifications RADAR DISPLAY UNIT

7Monochrome LCD Radar / VideoPlotter

7Color LCD Radar /VideoPlotter

MODEL

1722 MODEL 1732 MODEL 1742 MODEL 1762 MODEL 1722C MODEL 1732C MODEL 1742C MODEL 1762C

DISPLAY UNIT

Type 7Monochrome STN LCD 240X320 pixels 7Color TFT LCD 232X320 pixels NAVNET Interface Ethernet 10-BaseT Interface (NMEA 0183 format) --: any talker (menu selection)

Input: BWC, BWR, DBK, DBS, DBT, DPT, GGA, GLL, GSV, HDT, HDM, HDG, MSS, MTW, MWV, RMA, RMB, RMC, TTM, VHW, VTG, VYW, VWT, VWR, ZDA Output: AAM, APB, BOD, BWC, BWR, DBT, DPT, GGA, GLL, GTD, MSK, MTW, RMA, RMB, RMC, TLL, VHW, VTG, WPL, XTE, ZDA

RADAR CHARACTERISTICS

Display Modes Head-up, Course-up, North-up*, True Motion** (* Heading input required ** Heading and speed input required) Range Scales (nm) 0.125 to 24 14 steps

0.125 to 36 15 steps

0.125 to 36 15 steps

0.125 to 48 16 steps

0.125 to 24 14 steps

0.125 to 36 15 steps

0.125 to 36 15 steps

0.125 to 48 16 steps

Range Resolution 29 m Bearing Resolution 6.7 deg 5.5 deg 5.0 deg 3.9 deg 6.7 deg 5.5 deg 5.0 deg 3.9 deg Minimum Range 41 m Bearing Accuracy 1 deg Range Ring Accuracy 0.9 % of range or 8 m, whichever is greater

Echo Trail Interval: 15 s, 30 s, 1 min, 3 min, 6 min, 15 min, 30 min or Continuous PLOTTER CHARACTERISTICS

Map Scale 0.125 to 1024 nm Latitude Limits Between 85 deg N and 85 deg S Plot Interval 1 s to 59 min 59 s or 0.01 to 9.99 nm Display Modes Course plot, Nav data, Steering display, Highway Presentation Modes TM/RM North-up, Course-up, Auto Couse-up Memory Capacity Up to 8,000 points for ships track and marks, 1,000 waypoints, 200 planned routes (max. 35 waypoints/route) Alarms Arrival/anchor watch, XTE, proximity alert, ship speed, depth*, water temperature*, fish* (*Network sounder required, temperature sensor required for water temperature alarm) Electronic Charts* Loaded from FURUNO MiniChart, Navionics Nav-Chart, C-MapNT chart cards. *Chart must be determined upon

ordering. Choice of two units: Furuno & Navionics or C-Map ANTENNA RADIATOR

Type 460 mm (18) Radome 602 mm

(24) Radome 665 mm (2ft) Open

1035 mm (3.5ft) Open

460 mm (18) Radome

602 mm (24) Radome

665 mm (2ft) Open


Rotation Speed 24 rpm 24 rpm 24 rpm 24 rpm 24 rpm 24 rpm 24 rpm 24 rpm Wind Load Relative 100 kt

Beamwidth Hor: 5.2 deg Ver: 25 deg Hor: 4.0 deg Ver: 20 deg

Hor: 3.5 deg Ver: 30 deg






RF TRANSCEIVER Peak Output Power 2.2 kW 4 kW 2.2 kW 4 kW 2.2 kW 4 kW 2.2 kW 4 kW Warming up 60 sec 90 sec 90 sec 90 sec 60 sec 90 sec 90 sec 90 sec Frequency 9410 30 MHz (X- Band) Pulselength & PRR 0.08 s/2100 Hz (0.125 to 1 nm), 0.3 s/1200 Hz (1.5 to 3 nm), 0.8 s/600 Hz (3 to 48 nm) Intermediate Frequency 60 MHz

Bandwidth 7 MHz ENVIRONMENT (IEC 60945 test method)

Temperature -15C to +55C (Display unit), -25C to +70C (Antenna unit), Waterproofing IEC 60529 IPX5, USCG CFR-46 (Display unit), IEC 60529 IPX6 (Antenna unit),

POWER SUPPLY Rated Voltage/Current

12 24 VDC: 3.7-1.8 A

12 24 VDC: 3.8-1.9 A

12 24 VDC: 3.9-2.0 A

12 24 VDC: 4.2-2.1 A

12 24 VDC: 4.4-2.2 A

12 24 VDC: 4.5-2.3 A

12 24 VDC: 4.6-2.3 A

12 24 VDC: 4.9-2.4 A

COMPASS SAFE DISTANCE Standard 0.90 m Steering 0.60 m

1.12 Specifications

1-19

RADAR 10Monochrome CRT Radar / VideoPlotter

10.4Color LCD Radar / VideoPlotter

MODEL 1833 MODEL 1933 MODEL 1943 MODEL 1833C MODEL 1933C MODEL 1943C

DISPLAY UNIT

Type 10Green phosphor CRT 481X640 pixels 10.4Color TFT LCD 640X480 pixels NAVNET Interface Ethernet 10-BaseT Interface (NMEA 0183 format) --: any talker (menu selection)

Input: BWC, BWR, DBK, DBS, DBT, DPT, GGA, GLL, GSV, HDT, HDM, HDG, MSS, MTW, MWV, RMA, RMB, RMC, TTM, VHW, VTG, VYW, VWT, VWR, ZDA Output: AAM, APB, BOD, BWC, BWR, DBT, DPT, GGA, GLL, GTD, MSK, MTW, RMA, RMB, RMC, TLL, VHW, VTG, WPL, XTE, ZDA

RADAR CHARACTERISTICS

Display Modes Head-up, Course-up, North-up*, True Motion** (* Heading input required ** Heading and speed input required) Range Scales (nm) 0.125 to 36 nm

15 steps 0.125 to 48 nm

16 steps 0.125 to 64 nm

17 steps 0.125 to 36 nm

15 steps 0.125 to 48 nm

16 steps 0.125 to 64 nm

17 steps Range Resolution 20 m Bearing Resolution 4.0 deg 2.4 deg 1.9 deg 4.0 deg 2.4 deg 1.9 deg Minimum Range 27 m Bearing Accuracy 1 deg Range Ring Accuracy 0.9 % of range or 8 m, whichever is greater Echo Trail Interval: 15 s, 30 s, 1 min, 3 min, 6 min, 15 min, 30 min or Continuous

PLOTTER CHARACTERISTICS Map Scale 0.125 to 1024 nm Latitude Limits Between 85 deg N and 85 deg S Plot Interval 1 s to 59 min 59 s or 0.01 to 9.99 nm Display Modes Course plot, Nav data, Steering display, Highway Presentation Modes TM/RM North-up, Course-up, Auto Couse-up Memory Capacity Up to 8,000 points for ships track and marks, 1,000 waypoints, 200 planned routes (max. 35 waypoints/route) Alarms Arrival/anchor watch, XTE, proximity alert, ship speed, depth*, water temperature*, fish* (*Network sounder required, temperature sensor required for water temperature alarm) Electronic Charts* Loaded from FURUNO MiniChart, Navionics Nav-Chart, C-MapNT chart cards. *Chart must be determined

upon ordering. Choice of two units: Furuno & Navionics or C-Map ANTENNA RADIATOR

Type 602 mm (24) Radome 1035 mm (3.5ft) Open

1255 mm (4ft) Open

602 mm (24) Radome


1255 mm (4ft) Open

Rotation Speed *48 rpm is option 24 rpm 24 rpm/48* rpm 24 rpm/48* rpm 24 rpm 24 rpm/48* rpm 24 rpm/48* rpm

Wind Load Relative 100 kt Relative wind 100 kt (24rpm) Relative wind 70 kt (48rpm) Relative 100 kt

Relative wind 100 kt (24rpm) Relative wind 70 kt (48rpm)

Beamwidth Hor: 3.9 deg Ver: 20 deg Hor: 2.2 deg Ver: 22 deg





RF TRANSCEIVER Peak Output Power 4 kW 4 kW 6 kW 4 kW 4 kW 6 kW Warming up 90 sec Frequency 9410 30 MHz (X- Band) Pulselength & PRR 0.08 ms/2100 Hz (0.125 to 1.5 nm), 0.3 ms/1200 Hz (1.5 to 3 nm), 0.8 ms/600 Hz (3 to 64 nm) Intermediate Frequency 60 MHz

Bandwidth Tx pulselength 0.08s and 0.3s:25 MHz, Tx pulselength 0.8s and 0.3s:3 MHz ENVIRONMENT (IEC 60945 test method)

Temperature -15C to +55C (Display unit), -25C to +70C (Antenna unit), Waterproofing IEC 60529 IPX5, USCG CFR-46 (Display unit), IEC 60529 IPX6 (Antenna unit),

POWER SUPPLY

Rated Voltage / Current

12 24 VDC: 5.0-2.5 A

12 24 VDC: 6.5-3.2 A

12 24 VDC: 7.2-3.7 A

12 24 VDC: 5.3-2.6 A (300cd) 6.4-3.1 A (700cd)

12 24 VDC: 5.6-2.7 A (300cd) 6.7-3.2 A (700cd) 7.5-3.6 A (48 rpm)

12 24 VDC: 6.3-3.1 A (300cd) 7.4-3.5 A (700cd) 8.1-3.8 A (48 rpm)

COMPASS SAFE DISTANCE Standard 0.85 m 0.60 m Steering 0.45 m 0.40 m

1.12 Specifications

1-20

VIDEO PLOTTER 7Monochrome LCD

VideoPlotter 7Color LCD VideoPlotter

10.4Color LCD VideoPlotter

GP/GD-1700 GP/GD-1700C GP/GD-1900C

DISPLAY UNIT

Type 7Monochrome STN LCD 240X320 pixels 7Color TFT LCD 232X320 pixels

10.4Color TFT LCD 640X480 pixels

NAVNET Interface Ethernet 10-BaseT

Interface (NMEA 0183 format) --: any talker (menu selection)

Input: BWC, BWR, DBK, DBS, DBT, DPT, GGA, GLL, GSV, HDT*, HDM*, HDG*, MSS, MTW, MWV, RMA, RMB, RMC, TTM, VHW*, VTG, VYW, VWT, VWR, ZDA (For GP-1900C only) Output: AAM, APB, BOD, BWC, BWR, DBT, DPT, GGA, GLL, GTD, MSK, MTW, RMA, RMB, RMC, TLL, VHW, VTG, WPL, XTE, ZDA

PLOTTER CHARACTERISTICS Map Scale 0.125 to 1024 nm Latitude Limits Between 85 deg N and 85 deg S Plot Interval 1 s to 59 min 59 s or 0.01 to 9.99 nm Display Modes Course plot, Nav data, Steering display, Highway Presentation Modes TM/RM North-up, Course-up, Auto Couse-up TM/RM North-up, Course-up

Memory Capacity Up to 8,000 points for ships track and marks, 1,000 waypoints, 200 planned routes (max. 35 waypoints/route)

Alarms Arrival/anchor watch, XTE, proximity alert, ship speed, depth*, water temperature*, fish* (*Network sounder required, temperature sensor required for water temperature alarm) Electronic Charts* Loaded from FURUNO MiniChart, Navionics Nav-Chart, C-MapNT chart cards. *Chart must be determined upon ordering. Choice of two units: Furuno & Navionics or C-Map

ENVIRONMENT (IEC 60945 test method) Temperature -15C to +55C Waterproofing IEC 60529 IPX5, USCG CFR-46

POWER SUPPLY

Rated Voltage/Current 12 24 VDC: 1.5-0.7 A 12 24 VDC: 2.1-1.1 A (300cd) 3.1-1.6 A (700cd)

COMPASS SAFE DISTANCE Standard 0.90 m 0.90 m Steering 0.60 m 0.40 m

GPS RECEIVER ANTENNA GPS RECEIVER

GP-310B

RECEIVER CHARACTERISTICS

Receiver type Twelve discrete Channels, C/A code, all-in-view Receiver Frequency L1 (1575.42 MHz) Time To First Fix 90 seconds typical (Always Cold Start at Turn-on) Tracking Velocity 999 knots Geodetic Systems WGS-84, NAD-27 and others Accuracy 10 m approx (95% of the time ) Control System Controlled by NavNet product Data Output: NMEA0183

ENVIRONMENT Temperature -25C to +70C Waterproofing IEC 60529 IPX6

POWER SUPPLY Rated Voltage / Current 12-24 V / Max. 70 to 40 mA

1.12 Specifications

1-21

NETWORK SOUNDER NETWORK SOUNDER

ETR-6/10N

TRANSCEIVER CHARACTERISTICS

Display modes Single (50 or 200 kHz), Dual (50 and 200 kHz), Bottom-lock. Bottom Zoom, Bottom Discrimination, Marker Zoom, A-Scope Frequency Dual frequency 50 and 200 kHz Output Power 600 W / 1 kW rms Range Scale 8 basic ranges customized to max 1,200 m (4,000 ft, 1,300 fa) Range Phasing Up to 2,400 m (8,000 ft, 1,3000 fa) Data Output Through Ethernet

ENVIRONMENT Temperature -15C to +55C Waterproofing IPX2

POWER SUPPLY Rated Voltage 12-24 VDC (Max. 11.0 W)

Input/Output Ports

NMEA IN NMEA OUT 12 VDC OUT

NMEA IN NMEA OUT

HEADING (AD10 or NMEA)

NMEA IN RS-232C 12 VDC OUT EXT. BUZZER

Connector for Radar Antenna

MODEL 1722/1732/1742/1762 DATA 1 N/A DATA 2 DATA 3 Yes MODEL 1722C/1732C/1742C/1762C DATA 1 N/A DATA 2 DATA 3 Yes

MODEL 1833/1933/1943 DATA 1 N/A DATA 2 DATA 3 Yes MODEL 1833C/1933C/1943C DATA 1 DATA 2 DATA 3 DATA 4 Yes GP/GD-1700 DATA 1 DATA 2 N/A DATA 3 N/A GP/GD-1700C DATA 1 DATA 2 N/A DATA 3 N/A GP/GD-1900C DATA 1 DATA 2 DATA 3 DATA 4 Yes

1.13 Radar Antenna Compatibility

1-22

1.13 Radar Antenna Compatibility The NavNet series raders use the same antenna unit as that of existing models.

NAVNET Radars Existing Model Antenna unit IF Amp

7 Mono 7 Color 10 Mono CRT 10 Color CRT

300cd 10 Color CRT

700cd MODEL 1721M2 RSB-0067 Linear MODEL 1722 MODEL 1722C

MODEL 1731M3 RSB-0071-058 Linear MODEL 1732 MODEL 1732C

MODEL 1751M2 RSB-0047-051 Linear MODEL 1742 MODEL 1742C

RSB-0061-053 Linear MODEL 1762 MODEL 1762C

MODEL 1761M3 RSB-0070-065 (NEW) Linear MODEL 1762 MODEL 1762C

MODEL 821 RSB-0067 Linear MODEL 1722 MODEL 1722C

MODEL 841 RSB-0071-058 Linear MODEL 1732 MODEL 1732C RSB-0082-065 Linear MODEL 1762 MODEL 1762C

MODEL 851M2 RSB-0070-065 (NEW) Linear MODEL 1762 MODEL 1762C

MODEL 861 RSB-0062-056 Linear MODEL 1762 MODEL 1762C

MODEL 1752/1752C

RSB0091-069 (NEW) Linear MODEL 1752 MODEL 1752C

MODEL 1832 RSB-0071-057 Log. MODEL 1833 MODEL 1833C MODEL 1833C RSB-0082-064 Log. MODEL 1933 MODEL 1933C MODEL 1933C RSB-0083-064 (48rpm) Log. MODEL 1933 MODEL 1933C RSB-0070-064 (NEW) Log. MODEL 1933 MODEL 1933C MODEL 1933C

MODEL 1932M2

RSB-0073-064 (NEW) (48rpm) Log. MODEL 1933 MODEL 1933C RSB-0070-059 Log. MODEL 1943 MODEL 1943C MODEL 1943C

MODEL 1942M2 RSB-0073-059 (48rpm) Log. MODEL 1943 MODEL 1943C

FRS-1000A RSB-0071-057 Log. MODEL 1833 MODEL 1833C MODEL 1833C RSB-0082-064 Log. MODEL 1933 MODEL 1933C MODEL 1933C RSB-0083-064 (48rpm) Log. MODEL 1933 MODEL 1933C RSB-0070-064 (NEW) Log. MODEL 1933 MODEL 1933C MODEL 1933C

FRS-1000B

RSB-0073-064 (NEW) (48rpm) Log. MODEL 1933 MODEL 1933C RSB-0070-059 Log. MODEL 1943 MODEL 1943C MODEL 1943C

FRS-1000C RSB-0073-059 (48rpm) Log. MODEL 1943 MODEL 1943C

1.14 Detail of Input/Output Data and Signals

1-23

1.14 Detail of Input/Output Data and Signals

Figure 1.15

$ Waypint (Select go to waypoint Data only) $ NMEA Data (Select by menu of OUTPUT

THROUGH NETWORK) $ Chart Data $ Key command (Radar/Sounder)

Model1943

Netw

ork

Data1

Data2

Data3

SC120

NAV

1

HD

G1

GD1900

Netw

ork

ETR6/10N

GD1900

Netw

ork

Time, L/L,S/C

HUB

Key command.(Sounder)

$ Sounder Echo $ Depth $ Water Speed

$ Radar Echo $ Heading $ TTM Data $ Waypint (Select go to waypoint Data only) $ Nmea Data (Select by menu of OUTPUT

THROUGH NETWORK) $ Chart Data $ Key command (Radar/Sounder)

$ Key command.(Radar) $ Waypint(Select go to waypoint Data only) $ Sounder Echo $ Depth $ Water speed

Chart Card

$ Radar Echo $ Heading $ TTM Data $ Waypint (Select go to waypoint Data only) $ Nmea Data(Select by menu of OUTPUT

THROUGH NETWORK) $ Sounder Echo $ Depth $ Water speed $ Chart Data

Time,L/L,S/C

Heading

1.15 Sub-display Function

1-24

1.15 Sub-display Function

Navnet 10.4 color LCD display unit (RDP-138/139) can be used as a sub-display unit or a monitor. The connectable radar is logarithmic IF amplifier radar but not linear IF amplifier radar.

Software which supports sub-display function: 1950001005 or above (C-MAP version) 1950002009 or above (Navionics version)

Hardware: Serial numbers 4309-2825 to 3104, 3125, and after are equipped with modified SPU board for sub display function.

1) When SPU board is 19P1001-33, only 10 m interconnection cable can be used. Using the cable more than 10 m results in a noisy screen.

2) When SPU board is 19P1001-44, available is 10 m, 20 m and 30 m interconnection cable.

Field modification Change the SPU board with 44 board or above.

Interconnection cables: Parts Name Type Code Number Remarks

Cable Assy MJ MJ-B24LPF0008-100 000-145-125 10 m Cable Assy MJ MJ-B24LPF0008-200 000-145-126 20 m Cable Assy MJ MJ-B24LPF0008-300 000-145-127 30 m

Port to be used: DJ1 connector

Menu Setting: Select MONITOR MODE in RADAR SETUP menu (INSTALLATION SETUP/ SYSTEM CONFIGURATION/Installation menu).

Factory-modified sets Serial number of RDP-138/139 which equipped with 44 SPU board; 4309-3189 to 3215, 3219 to 3237, 3239 to 3240, 3248 to 3338, 3340 to 3344, 3346 to 3356, 3358 to 3370, 3373 to 3402, 3405 to 3442, 3444, 3446, 3448, 3449, 3454 to 3455, 3458, 3461, 3463, 3471, 3472, 3476, 3478 to 3480, 3501 and after

Chapter 2. Circuit Description

2-1

This chapter describes the circuit of NavNet series products briefly.

2.1 General NavNet series radar is divided into two groups depending on the type of IF amplifier. One uses a linear IF amplifier and the other a logarithmic amplifier. Figures 2.1 and 2.2 show the simplified block diagram of each system.

TX: The trigger pulse, generated on the Processor (SPU) board in the display unit, is delivered to the modulator in the scanner unit to oscillate the magnetron. The radar emits radio wave from the radiator with the magnetron oscillating.

RX: The 9.4 GHz echo signal received by the antenna is converted down to 60 MHz IF signal by the MIC. The IF amplifier amplifies the IF signal and output it to the video circuit on the SPU board. The signal is displayed on the screen after digital signal processing. The received signal is gain-, A/C sea-, and A/C rain-controlled in the linear IF amplifier, while the signal is not controlled in the logarithmic amplifier but it is controlled in the video amplifier on the SPU board in the display unit.

Auto plotter (Optional): Applied from the SPU board to the ARP board are;

1) Heading in AD format 2) 8192 bearing pulse 3) Video 4) Trigger 5) Ships speed in IEC-61162 format.

The ARP board acquires and tracks targets. Data and symbol of the acquired target are displayed on the screen via the SPU board. Target data includes position, CPU, TCPA, speed, and course.

Mag. MIC

Mod. IFAmp

RF Module

Antenna

Scanner Unit

Processor

Panel Power

LCD

Ships mains Nav.Gyro

Display Unit

HD,BP

Video

Trigger

GAIN, A/C SEA,A/C RAIN

Figure 2.1 Simplified block diagram of radar which uses a linear IF amplifier (MODEL 1722/1722C/1732/1732C/1742/1742C/1752/1752C/1762/1762C)

2.1 General

2-2

Mag. MIC

Mod. IFAmp

RF Module

Antenna

Scanner Unit

Processor

Panel Power

CRT or LCD

Ships mains Nav.Gyro

Display Unit

HD,BP

Video

Trigger

M1832-SME-8

ARP *Option

Figure 2.2 Simplified block diagram of radar which uses a logarithmic IF amplifier (MODEL 1833, 1833C, 1933, 1933C, 1943, 1943C)

2.2 Function of Board (Display Unit)

2-3

2.2 Function of Board (Display Unit) Board Name Function

SPU Board

03P9280 03P9286 03P9288 19P1001

1) Includes a video amplifier circuit. (03P9288/19P1001 used for logarithmic amplifier) (a) Applies GAIN, STC, FTC and IR to video signal and outputs to the A/D converter. (b) Adjusts video signal input level (adjusted by Radar SETUP MENU). (c) Changes STC curve according to the antenna height set on the Radar SETUP

menu. 2) Outputs Gain, A/C sea, and A/C rain control signals to the scanner unit.

(03P9280/03P9286 used for linear amplifier) 3) Performs A/D conversion of video signal. (8 gradation : 03P9286/03P9288/19P1001, 4 gradation : 03P9280) 4) Processes the signal for Echo averaging (EAV 1/2/3) 5) Constructs radar picture using HD, BP, TRIG, and VIDEO signals. 6) Controls keyboard. 7) Controls tuning circuit. 8) Outputs Tx trigger and pulselength selection signals to the antenna unit. 9) Processes the signal for Echo trailling. 10) Generates Plotter and Echosounder displays. 11) Memories the base chart (rough world map). 12) Is equipped with a flash ROM which memories system program. 13) Communicates with F-NET board. 14) Transmits and receives data in IEC61162 and AD10 formats. 15) Receives RGB signal from NTSC/PAL I/F board, 19P1004. 16) Outputs signals to the remote or sub display (19P1001/03P9288). 17) Memorizes RADAR SETUP menu settings, tune voltage and tune Ind. voltage onto

the EEPROM. 18) Memorizes PLOTTER/RADAR/GPS operation menu settings, marks, waypoints,

and track onto the SRAM. 19) Checks for the presence of ARP boards at power-up. (03P9288/19P1001) 20) Displays navigation data being fed from a navigator. 21) Reads and displays trackball and ENTER knob data.

PWR Board 03P9282 03P9283 03P9296 19P1005

1) Voltages which the board generates 03P9282: +5.1V, -12V, +12V, -24V, and motor drive voltage 03P9283: +5V, -12V, +12V, -24V, and motor drive voltage 03P9296: +5V, -12V, +12V, and motor drive voltage 19P1005: +3.3V, +5V, -12V, +12V, and motor drive voltage

2) Protectors 1) Short circuit on line voltages 2) Input low- and over-voltage (10.8 Vdc or low; 31.2 Vdc and high)

3) The board outputs PF (Power Failure) signal to the SPU board before shutting down.

ARP Board 18P9013, Optional

1) Compatible with the latest ARP-10 hardware. 2) Converts GAIN-, STC-, FTC-, and I/R-processed video signal into quantized video (QV). 3) Performs automatic and manual target acquisition and tracking. 4) Detects HD, BP, TRIG, VIDEO, LOG and GYRO signal errors. 5) Calculates CPA and TCPA. 6) Detects land echo. 7) Outputs ARPA data to the SPU Board: Target No., R/B, CPA, TCPA, etc.

NET Board 03P9284

1) Receives data from the SPU board and transmits it in NavNet standard (10Base-T). 2) Memorizes data from the SPU and other N-NET boards temporarily. 3) Listens to the network to see if it is busy. If not, it transmits the packet of data. 4) Has a MAC address or unique hexadecimal serial number assigned to each NavNet

product to identify it on the network. The address is permanently set at the factory.

2.3 SPU board

2-4

2.3 SPU board Figures 2.3, 2.4, 2.5, and 2.6 show the block diagram of SPU board used in NavNet products.

Figure 2.3 Block diagram of SPU board, 03P9280, receiving output of linear IF amplifier

T1, L1, Q23, T1, L1, Q23, T1, L1, Q23, T1, L1, Q23, L2, C168L2, C168L2, C168L2, C168

NMEA/AD10NMEA/AD10NMEA/AD10NMEA/AD10

23.8 MHz

GA1

32bit CPU

RESET

SDRAM 16 Mbit*2

V832

PD705102

32

32

FLASH ROM 16Mbit*2

16

SERIAL I/O

SRAM 1Mbit*2

16

Battery Lithium

DRAM 4Mbit*2

16

GA3

16

DRAM 4Mbit*3

16

25.175 MHz

77.7 MHz

DRAM 4Mbit

16

8

VIDEO SIG COMP

*7

LOG AMP VIDEO

D/A GAIN, A/C SEA, TUNE CONT.

Synchronous serial

REMOTE I/O

8

Synchronous serial

RemoteRemoteRemoteRemote

LCDLCDLCDLCD

VIDEOVIDEOVIDEOVIDEO

A/D

8 Key senseKey senseKey senseKey sense

EncoderEncoderEncoderEncoder

PCPCPCPC

CLF HVCLF HVCLF HVCLF HV

RADAR ECHO TRAIL

CPU BUS Buffer

ChaChaChaChart Cardrt Cardrt Cardrt Card 16

FFFF----NetNetNetNet

PLOTTER CHART

SOUNDER

SERIAL I/O

SERIAL I/O NMEANMEANMEANMEA

TUNE_IND

HEADING,EXT_TRIG

FLASH ROM 8Mbit*2

32

U45U45U45U45

EEPROM 2kbit

1 U57U57U57U57

U40U40U40U40

U61U61U61U61

U5U5U5U5

U5U5U5U5 03S9060

U24, 25U24, 25U24, 25U24, 25

PLL BEARING

U4U4U4U4

U41 to 49U41 to 49U41 to 49U41 to 49

U34U34U34U34

U47, 58U47, 58U47, 58U47, 58

U35U35U35U35

U69U69U69U69 U33, 39U33, 39U33, 39U33, 39

U38U38U38U38

U71,U71,U71,U71, 78 78 78 78

U10U10U10U10

U11U11U11U11

U36U36U36U36

U19U19U19U19

U70, 72, 73, U70, 72, 73, U70, 72, 73, U70, 72, 73, 74, 75, 77, 8074, 75, 77, 8074, 75, 77, 8074, 75, 77, 80

BT1BT1BT1BT1

BASE CHART DATA, RADAR SIMULATION DATA

PROGRAM

J102

J104

J108

J107

J102

PWM J106

J105

TUNE CONT.TUNE CONT.TUNE CONT.TUNE CONT.

Back Light

J104

J103

Reference Voltage

2.3 SPU board

2-5

Figure 2.4 Block diagram of SPU board, 03P9286, receiving output of linear IF amplifier


23.8 MHz

GA1

32bit CPU

RESET

SDRAM 16 Mbit*2

V832

PD705102

32

32

FLASH ROM 16Mbit*2

16

SERIAL I/O

SRAM 1Mbit*2

16

Battery Lithium

DRAM 4Mbit*2

16

GA3

16

DRAM 4Mbit*3

16

77.7 MHz

DRAM 4Mbit

16

8

VIDEO SIG

COMP

LOG AMP VIDEO

D/A GAIN, A/C SEA, TUNE CONT.

Synchronous serial

REMOTE I/O

8

Synchronous serial


LCDLCDLCDLCD


A/D



PCPCPCPC

CLF HVCLF HVCLF HVCLF HV

RADAR ECHO TRAIL

CPU BUS Buffer

Chart CardChart CardChart CardChart Card 16


PLOTTER CHART

SOUNDER RADAR MARK

SERIAL I/O

SERIAL I/O NMEANMEANMEANMEA

TUNE_IND

HEADING,EXT_TRIG

Reference Voltage

FLASH ROM 8Mbit*2

32

U53U53U53U53

EEPROM 2kbit

1 U28U28U28U28

U27U27U27U27

U34U34U34U34

U25U25U25U2503S9060

U1, 21U1, 21U1, 21U1, 21

PLL BEARING

U17U17U17U17

U19, 22, 23U19, 22, 23U19, 22, 23U19, 22, 2330, 32, 39, 30, 32, 39, 30, 32, 39, 30, 32, 39, 47474747

U26U26U26U26

U54, 68U54, 68U54, 68U54, 68

U43U43U43U43

U53U53U53U53 U36, 37U36, 37U36, 37U36, 37

U29U29U29U29

U50, 64U50, 64U50, 64U50, 64

U41U41U41U41

U11U11U11U11

U18U18U18U18

U14U14U14U14

U49, 61, 62, U49, 61, 62, U49, 61, 62, U49, 61, 62, 63, 69, 70, 7163, 69, 70, 7163, 69, 70, 7163, 69, 70, 71

BT1BT1BT1BT1

BASE CHART DATA RADAR SIMULATION DATA

PROGRAM

J102

J104

J108

J107

J102

PWM J106

J105

SCANNER UNITSCANNER UNITSCANNER UNITSCANNER UNIT


Back Light

J104

J103

LCD I/FLCD I/FLCD I/FLCD I/F

2.3 SPU board

2-6

Figure 2.5 Block diagram of SPU board, 03P9288, receiving output of logarithmic IF amplifier


PANEL LEDPANEL LEDPANEL LEDPANEL LED

22.5 MHz

GA2

32bit CPU

RESET

SDRAM 16 Mbit*2

V833

PD705102

32

32

FLASH ROM 16Mbit*

32

16

SERIAL I/O

SRAM 1Mbit*2

16

Battery Lithium

SDRAM 16Mbit*

32

GA3

GA1

16

DRAM4Mbit*3

16

25.175 MHz

77.7 MHz

SDRAM 16Mbit

16

VIDEO H,VSYNC

SYSTEM CLK 8

VIDEO SIG COMP

*7

AMPVIDEO

D/A TUNE

Synchronous serial

REMOTE I/O

8

Synchronous serial


R,G,B Hsync, Vsync Track BallTrack BallTrack BallTrack Ball

CRTCRTCRTCRT

D/A AMP EXT DISPLAYEXT DISPLAYEXT DISPLAYEXT DISPLAY

BUFFER VIDEO SUB DISPLAYSUB DISPLAYSUB DISPLAYSUB DISPLAY


A/D


EnEnEnEncodercodercodercoder

PCPCPCPC

Back LightBack LightBack LightBack Light PWM

RADAR ECHO TRAIL

CPU BUSBuffer



ARP11ARP11ARP11ARP11

PLOTTER CHART

SOUNDER

SERIAL I/O SERIAL I/O

GPSGPSGPSGPS SERIAL I/O NMEANMEANMEANMEA

TUNE_IND

HEADING,EXT_TRIG

A/C SEA, A/C RAIN, GAIN

FLASH ROM 8Mbit*2

16

D/A AMP

U61,62,63U61,62,63U61,62,63U61,62,63

EEPROM 4kbit

1 U70U70U70U70

U46U46U46U46

U65U65U65U65

U87U87U87U87

U38U38U38U38

U86U86U86U86

03S9530

19S1007

03S9060-1

U47,48U47,48U47,48U47,48

PLLBEARING U57U57U57U57

U71,74,90,91,U71,74,90,91,U71,74,90,91,U71,74,90,91,U95,100,101U95,100,101U95,100,101U95,100,101

U51,52U51,52U51,52U51,52

U41,42U41,42U41,42U41,42

U53U53U53U53

U39,40U39,40U39,40U39,40 U7,18U7,18U7,18U7,18

U6U6U6U6

U15,26U15,26U15,26U15,26

U22U22U22U22

U19U19U19U19

U5U5U5U5

U45U45U45U45

U79,80,83U79,80,83U79,80,83U79,80,83

PWM

BUZZERBUZZERBUZZERBUZZER

U2,BTU2,BTU2,BTU2,BT

U18: BASE CHART DATA U27:RADAR SIMULATION DATA

PROGRAM

J103

J107

J101

J108

J101

J103

J109

J102

J101

J103

PWM J102

J105

J110

J106



J104

2.3 SPU board

2-7

Figure 2.6 Block diagram of SPU board, 19P1001, receiving output of logarithmic IF amplifier


PANEL LEDPANEL LEDPANEL LEDPANEL LED

22.5 MHz

GA2

32bit CPU

RESET

SDRAM 16 Mbit*2

V833

PD705102

32

32

FLASH ROM 16Mbit*2

32

16

SERIAL I/O

SRAM 1Mbit*2

16

Battery Lithium

SDRAM 16Mbit*2

32

GA3

GA1

16

DRAM 4Mbit*3

16

25.175 MHz

77.7 MHz

SDRAM 16Mbit

16

VIDEO SIG H,VSYNC

SYSTEM CLK 8

VIDEO SIGCOMP

*7

AMP VIDEO

D/A TUNE

Synchronous serial

REMOTE I/O

8

Synchronous serial


R,G,B Hsync, Vsync

Track BallTrack BallTrack BallTrack Ball

LCDLCDLCDLCD

D/A AMP

EXT DISPLAYEXT DISPLAYEXT DISPLAYEXT DISPLAY

BUFFER VIDEO SUB DISPLAYSUB DISPLAYSUB DISPLAYSUB DISPLAY


A/D



PCPCPCPC

Back LightBack LightBack LightBack Light PWM

RADAR ECHO TRAIL

CPU BUSBuffer


PPPP----ININININ----PPPP


ARP10XARP10XARP10XARP10X

PLOTTER CHART

SOUNDER

SERIAL I/O SERIAL I/O

GPSGPSGPSGPS SERIAL I/O NMEANMEANMEANMEA

TUNE_IND

HEADING,EXT_TRIG

A/C SEA, A/C RAIN, GAIN

FLASH ROM 8Mbit*2

16

SW

U87,88,89U87,88,89U87,88,89U87,88,89

EEPROM 4kbit

1 U51U51U51U51

U69U69U69U69

U65U65U65U65

U57U57U57U57

Y3Y3Y3Y3

Y2Y2Y2Y2

03S9530

19S1007

03S9060-1

U21,25U21,25U21,25U21,25

PLL BEARING

U93U93U93U93

U47,46,53,52U47,46,53,52U47,46,53,52U47,46,53,52 U59,58,63U59,58,63U59,58,63U59,58,63

U84,85U84,85U84,85U84,85

U18,27U18,27U18,27U18,27

U86U86U86U86

U3,11U3,11U3,11U3,11 U19,30U19,30U19,30U19,30

U23U23U23U23

U8,14U8,14U8,14U8,14

U91U91U91U91

U9U9U9U9

Y1Y1Y1Y1

U77U77U77U77

U78,83,92U78,83,92U78,83,92U78,83,92

PWM

BUZZERBUZZERBUZZERBUZZER

U1,BT1U1,BT1U1,BT1U1,BT1

U18: BASE CHART DATA U27:RADAR SIMULATION DATA

PROGRAM

U26,29U26,29U26,29U26,29,,,,

J113

J112

J103

J102

J103

J103

J108

J106

J103

J113

PWM J111

J109

J110

J104 J105

J107

37,4437,4437,4437,44


TUNTUNTUNTUNE CONT.E CONT.E CONT.E CONT.

2.3 SPU board

2-8

2.3.1 Auto Tuning Function At not only installation but also the replacement of RF unit, magnetron, MIC, and SPU board, tune initialization must be carried out through the tuning setup menu. The receiver is tuned automatically for maximum echoes and tuning control voltages found are stored onto the EEPROM on the SPU board. Tune initialization is carried out in two steps. First, full search is performed using a long pulse to find a coarse tuning voltage (a). Then, short search is performed for all pulses. After initialization, the pulselength which was used before is selected.

In full search, tune control voltage (TUNE CONT) varies from about 1 V to 10 V and one that produces the maximum tune indicator voltage or coarse tuning voltage is memorized onto the EEPROM.

about 10 V

Tuningcontrolvoltage

about 1 V

(a)

Fullsearch

Shortsearch Tracking

Time

LP

Tuningindicatorvoltage

Max. about 3 V

Min. about 1 V

LP M SPulselength

EEPROMbackup

Auto andMan. coarsetuning pt.

Max.Tuning Ind.voltage


Pulse length in use

Auto coarsetuning point


1 2 3

Figure 2.7 Tuning initialization process

In short search, tune control voltage changes from coarse tuning voltage plus 2.5 V to coarse tuning voltage minus 2.5 V. This search is made with long, middle, and short pulses to find the fine tuning voltage.

At daily use, the short search is made twice when the radar is set from ST-BY to TX and once when the plulselength is changed in auto tuning mode.

2.3 SPU board

2-9

2.3.2 Manual tuning When tune mode is changed from auto to manual, the coarse tuning voltage is selected. In manual tune mode, tuning voltage is indicated graphically under the tuning indicator. The minimum scale is 3 V and the maximum scale is 10 V.

2.3.3 Tuning Indication The tuning indicator is adjusted so that the tuning indicator extends more than 80% of its full length on all ranges at best tuning. The extension on short pulse is shorter than long pulse and the indication becomes shorter when the magnetron degrades.

2.3.4 Video Level Adjustment (03P9288/19P1001) The video input level to the linear video amplifier must be adjusted through the installation menu at not only installation but also the replacement of RF unit, magnetron, MIC, and SPU board. The following describes the outline of the adjustment mechanism on the SPU board, 19P1001. The SPU board, 03P9288 has the same circuit as 19P1001, but it has different parts numbers.

The following describes the outline of the adjustment. (These are carried out automatically.) 1. Main Bang suppression Level (MBS L) is set to 0. 2. EEPOT, U14 is set to minimum. (EEPOT initialization with "L" level of U14 #7) 3. EEPOT gets into step-up mode (U14 #2 is H.) to measure output video level at each step.

The step is changed by pulses applied to U14 #1. The step where the output level is 2.2 V is memorized.

4. EEPOT gets into step-down mode (U14 #2 is L) to find and stores the step number where the output level is 2.2 V.

5. Averaging the step numbers found in steps 3 and 4 above, and saving onto depot. The stored value is not erased when power is turned off.

6. MBS L is reset to the value previously used.

Figure 2.8 Video level adjustment

It is not necessary to adjust video level for the video amplifier on the SPU boards, 03P9280 and 03P9286, because the board receives the output signal of logarithmic IF amplifier.

VIDEO(From IF AMP)

EEPOT

32 step

EEPOT(VIDEO output ) 2.2 V

UP Down

M1832-SME-12A

Step:

2.3 SPU board

2-10

2.3.5 Echo Averaging (EAV) Echo averaging circuit is designed for; 1) Discriminating small and weak targets such as flocks of birds, small ships, and fishing floats

hidden in sea clutter, and 2) Displaying long-range targets stably.

Normally echoes from sea clutter and noises do not appear on the screen at the same position in successive scans. The circuit can provide the different echo levels, correlating echo data at each scan so that the level (intensity) of the echo which appears at random position decreases. For example, echoes from target and sea clutter are displayed on the screen in the same level with EAV off. But the echo from sea clutter is displayed in lower level than target echo with EAV LOW. The return from the sea clutter appears at the different position at every scans and EAV LOW sets the echo level to low at first and second hits. The target echo appears more than three successive scans at the same position, so it gets the maximum echo level. The EAV MED gives the maximum level to the target which has four consecutive hits or more.

The EAV HIGH prolongs the afterglow time of echoes.

Echo averaging is a useful function when it is used properly. However, target may be lost if this function is used with improper settings. The echo averaging requires heading and LL data.

OFF

Echo level

7

Echo level

7

Echo level

7

Echo level

7

1 2

1 2 No. of Scan

No. of Scan

No. of Scan

No. of Scan

FR-2115-SME-27C

LOW

MED

HIGH

1 2

1 2

Figure 2.9 Echo Averaging

2.4 ARP Function (optional)

2-11

1 TX1HJ3

ARP Board (18P9007)

M1832-SME-09B

TP1,9

CPU CORE

UARTTRANSMIT

UARTRECEIVER

DMACHANNEL

TIMER(10ms)

U13 V821( PD70741GC-25)

TARGET DATA (TTM:CURRENT LOOP)

2 TX1C

3

4

RX1H

RX1C

CR1(Blinks 1sec)

I/F for SPU communication(U14,15,16,23,24)

FLASH ROM2M bit(U11)

RAM512K bit(U9,10)

PROGRAM/DATA

(256K bit x 2)

FEFront End signalprocessor(U3)

WidthFlagsRange/azimuthTime

A/D CONV. A9 VIDEO

TP8

RAM(U4,5)512K bit

Echo data temporary memory(256K bit x 2)

A17 LOG

A2A3 GYRO DATA, CLOCK

A13 TRUE TRIG

A11 TRUE HDTRUE HD

BP(4096/rotation)A4 SCAN INT

TRUE TRIG

GYRO(AD Format,25msec)

LOG(Contact signal): Not used

J107

TP6(Factory use)

TP5(Factory use)

TP4

TP7(CLK OUT)

TP2

41.446MHz

NOT USED

NMEA ships speed data inputU1

(18S9010)

A7 EXT TXD(Output from NMEA 1 via SPU)

2.4 ARP Function (optional) 10-inch CRT and 10.4-inch LCD radars, Model 1833/1833C/1933/1933C/1943/1943C, provide ARP function if they are equipped with an optional ARP-11. The ARP board cannot be mounted on the 7-inch radars. The ARP-11 has the same circuitry and software as ARP-10, but the board is small in size. The ARP-11 requires heading data in AD format and speed data in NMEA format. Heading data in NMEA format and contact-closure speed log signal are not acceptable.

The ARP-11 acquires and tracks 10 targets manually and automatically. The ARP display can be turned on/off through the ARPA TARGET INFO/ARPA Setup menu which has the following options.

1) Internal ARPA: Is selected when the radar is equipped with the ARP board and when TTM data is received via NETWORK port. Target can be acquired and cancelled from any display unit in the NavNet network.

2) External ARPA: Is selected when the display unit receives TTM data via NMEA port. Target tracks are shown but targets cannot be acquired.

3) Off

Figure 2.10 shows the simplified block diagram of the ARP board, 18P9013.

Figure 2.10 Block diagram of ARP board, 18P9013

Unlike existing radars, on this radar, MAG (Magnetic) is selected in heading display mode menu white receiving AD-format heading signal.


2-12

Unlike other existing ARPs, ARP-11 does not require QV level adjustment at installation and no test point for QV echo is provided.

The system checks the connection of the ARP board at every power-on. If the CPU on the SPU board fails to communicate with the ARP CPU, the message ARP is not connected. appears and the ARP line is not displayed in the selftest display.

The ARP board generates the track of the tracking target. In the radar display mode, the past position is displayed by equally time-spaced dots and in the plotter mode, it is displayed by a solid line. To display the track in the plotter mode, the board memories the position of the tracking target at the same interval as own ships plot interval. A maximum of 10 positions is memorized for each target and these points are connected.

Table 2.1 Display mode vs. track display

Display mode Radar Plotter (GD) Overlay Past Position (dots) Available N.A. Available Track (solid line) N.A. Available Available

When the target is not acquired, carry out the self-test at TX condition. TRIGGER, VIDEO, BP, HD must be OK, and FE-DATA 1 and FE-DATA 2 must vary depending on the gain setting. The lower the gain setting, the smaller the FE DATA value. The FE DATA must not exceed 1000 with the maximum gain setting.

The APR works in the following conditions.

Land echo discrimination A target measuring about 800 m or more in the radial or circumferential direction is regarded as a landmass and not acquired or tracked. Echoes smaller than about 800 m are regarded as true target.

Manual acquisition 1) Within 9 scans, the target must be detected near the cursor position. 2) Target echo must be smaller than land echo (800 m or less in the radial or circumferential

direction) at the front-end processor. 3) Target must be within acquisition area: 0.1 to 16 nm. 4) The number of acquired targets is not as many as 10, including the target manually acquired. 5) No signal error (TRIG, HD, BP, VIDEO, GYRO) shall be detected.

Automatic acquisition 1) The target must be detected for five consecutive scans within the automatic acquisition area. 2) Target echo must be smaller than land echo (800 m or more in the radial or circumferential

direction) at the front end processor. 3) Target must be within acquisition area: 2.0 to 2.5 nm and 45 each side of heading line. 4) The number of acquired targets is not as many as 10, including the target automatically

acquired. 5) No signal error (TRIG, HD, BP, VIDEO, GYRO) shall be detected.


2-13

Automatic acquisition 1) A tracking target is judged as a lost target when no return is received for nine consecutive

sweeps. When the system detects a loss of a tracking target, the target symbol becomes a flashing diamond.

2) A lost target will be reacquired and tracked when acquisition condition again becomes satisfactory.

3) Automatic tracking is discontinued when the target moves out of the acquisition range (less than 0.1 nm or greater than 16 nm).

2.5 PWR Board

2-14

2.5 PWR Board PWR boards, 03P9282, 03P9283, 03P9296, and 19P1005, are similar in circuitry, but the parts numbers are different. The power supply circuit, except for 03P9282, consists of a primary circuit and a secondary circuit. The primary circuit uses a switching regulator and generates 12 V and +12 V. The secondary circuit is powered from +12 V generated by the primary circuit.

Table 2.2 Voltages generated by PUT board

Board name

Output of primary circuit

Output of secondary circuit

Voltages generated on SPU board

03P9282 -12 V, +5.1 V, +12 V, and 24 V

No secondary circuit

2.5 V and 3.3 V (generated from 5.1 V)

03P9283 -12 V and +12 V +5 V and 24 V 2.5 V and 3.3 V (generated from 5 V) 03P9296 -12 V and +12 V +5 V 2.5 V and 3.3 V (generated from 5 V) 19P1005 -12 V and +12 V +3.3 V and +5 V 2.5 V (generated from 5 V)

On SPU (03P9286) board, -15 V is generated from -24 V by Q13 and CR4 for 7-inch color LCD display.

The following describes how PWR board works in the example of 19P1005.

See Figure 2.11, the block diagram of the power supply circuit, 19P1005. This board consists of main-inverter, sub-inverter, and brilliance control circuit. The main-inverter produces 12 V and +12 V, and the sub-inverter produces +3.3 V and +5 V. On the SPU board, +2.5 V is generated from +5 V with a regulator Q35. The power failure signal P FAIL N is generated by U7 and Q17 before the power supply circuit is shut down.

Figure 2.11 Block diagram of 19P1005

10 V

U6

Q27

TP4 R50

R79

R72

TP5

Q12 Reset

Clock

CR4

CR5

Q8 R43

Q15 Q14

Q12

Q9

Q8

Reset

10V Reg. Q7, CR3

-12 V, +12V Output Circuit

10V ON/OFF Circuit Q13

Input over-voltage Det U3

5 sec Delay Circuit R28, C19, CR7

FF U4

Oscillator 1 U2

Oscillator Stop circuit

Q6

Over-current det R1, R2, R3, U1

0.5 sec Delay circuit R30, C19, CR7, U5

3.3V Over-current det R87, R88

Input +12 V

Oscillator U9

+5 V Output Circuit

+3.3 V Output Circuit

TP3 Reg. U35

U50

U50

-12 V

+2.5 V

+5 V

PWR-SW

PWR-OFF

+3.3 V

PTU (19P1005) Board SPU (19P1001) Board

Relay K1 ANT CONT.

ANT MOTOR

J1351

2.5 PWR Board

2-15

Power-on sequence 1. Power ON signal, PWR-SW is sent to Q8 on PWR board from SPU board. 2. Q8 sends a clock to the flip-flop U4 for setting, and Q14 becomes on. 3. Q13 is on. 4. +10 V is applied to the switching oscillator, U2 through Q13. 5. U2 oscillates and current flows switching transistors Q1 and Q2. 6. The main-inverter outputs +12 V and 12 V. 7. +12 V is supplied to the sub-inverter. 8. The sub-inverter becomes in ON condition. 9. The sub-inverter outputs +3.3 V and +5 V.

Figure 2.12 Simplified circuit diagram of sub-inverter (19P1005)

Power-off sequence (19P1005) The power supply circuit shuts down in two steps. The oscillator stop oscillating and +10 V is switched off 0.5 second later. 1. By pressing the PWR SW for 3 seconds, Power OFF signal, PWR-OFF line becomes High. 2. U6 conducts and then Q5 is on. (Base current flows through R15, CR2, and Q6.) 3. The switching oscillator U2 stops oscillating and +/-12 V are not outputs 4. When Q6 conducts, Q4 is also on. 5. 0.5 sec delay circuit, consisting of Q10, Q11, R30, CR7, and C19, activates. 6. (C19 is charged through R29/R30, CR6 and R31 with Q12 on.) 7. Q12 is on 0.5 second later. 8. A reset signal is sent to the flip-flop U4. 9. Q14 is off and then Q13 is off.

Oscillator, U9

+12V

R73

R78

R80

C33

1.25V

1.25V

R72: Adjusts +5V.

R79: Adjust +3.3V.

L5 Q20

C36

CR15

CR17

+5V (Vcc)

+3.3VQ23

L7

R71

2.5 PWR Board

2-16

Protector Circuit (19P1005) The power supply circuit is protected against input low-/over-voltage and short circuit of line voltage. Provided are following power failure detectors.

1) Input over-/low-voltage detector The detector U3 outputs Low signal when ships main is not within the rated input voltage range. CR4 conducts and Q5 turns on. Thus, the switching oscillator U2 stops oscillating with its pin #5 (DT) High. If ships main is not within the range for 5 seconds, 5 sec delay circuit, consisting of Q9, Q11, R28, CR7, and C19, activates with CR5 on. Q12 is on and a reset signal is applied to the flip-flop U4. Q14 and Q13 are off. (C19 is discharged through R28, CR6, and R31.)

If ships main becomes within the range within 5 seconds, the oscillator U2 starts oscillating again.

2) +/-12 V line short-circuit detector When +12 V or 12 V line short-circuits, overcurrent flows in the primary winding circuit of the main-inverter. The overcurrent detector, consisting of U1, R1, R2, and R3, detects this current. The output of U1 becomes low and Q3 is on. Thyristor Q6 is triggered. Q5 is on and the oscillator U2 stop oscillating with its DT pin High.

With Q6 on, 0.5 sec delay circuit activates and Q13 is turned off to switch off 10 V supply.

3) +5 V line short-circuit detector When + 5 V line is short-circuited, U9 stop oscillating. Note that the main-inverter is still alive.

4) +3.3 V short-circuit detector When +3.3 V is short-circuited, overcurrent flows through R87 and R88, causing that Q27 is on. When Q27 conducts, Q19 is on and SCP line becomes Low. A photocoupler U5 triggers 0.5 sec delay circuit and the flip-flop U4 is reset. Q13 is off finally. U9 stop oscillating immediately after the short circuit of +3.3 V line with #3 pin of U9 low.

5) +2.5 V short-circuit detector On the SPU board, a photocouper detects the short circuit of +2.5 V line. The PWR OFF line becomes High and Q6 is triggered.

6) When the CPU freezes, PWR OFF signal is not generated. In this case, hold down the PWR switch for 5 seconds. Q8 and Q9 are on. C19 is discharged through R28, CR6, and R31. CR7 conducts when C19 is discharged to about 3.6 V. Then, Q12 is on.

2.5 PWR Board

2-17

Figures 2.13, 2.14, and 2.15 show a simplified block diagram of other PWR boards. Their function is similar to 19P1005.




CR7

ANT Motor

TP2

U6

U11 R67

Q17 Reset

Clock

CR4

CR9

Q11 R29

Q13 Q12

Q17

Q14

Q11

Reset

10V Reg Q1, CR3

-12 V, +12V, +5V, -24V Output Circuit

10V ON/OFF Circuit Q2

Input over-voltage Det U1

5 sec Delay Circuit R53, C22, CR4

FF U10

Oscillator 1 U2

Oscillator Stop circuit

Q7

Over-current det R13, R14, R15

0.5 sec Delay circuit R74, C22, CR4

-24V Over-current det R62

Input +12 V

U9 U13

-12 V

+5.1 V

PWR-SW

PWR-OFF

PWR (03P9282) Board SPU (03P9288) Board TP1

TP3

Relay K1 ANT CONT.

+3.3V

+2.5V Reg. U15

Reg. U14

U13 U9

-24 V

10 V

J301

10 V

CR7

NavNet Service Manual b 7.19.2002

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Transcript of NavNet Service Manual b 7.19.2002