Fetatrack 310 Service Manual Issue...
Transcript of Fetatrack 310 Service Manual Issue...
Ultrasound Technologies Ltd
Fetatrack 310 Service Manual
Issue 1
©Ultrasound Technologies Ltd Issue 1 December 2004 Page 2
Ultrasound Technologies Ltd Contents
INTRODUCTION ...................................................................................................... 3
Specification ........................................................................................................................................................ 4
User Configuration ............................................................................................................................................. 6
SAFETY IN USE....................................................................................................... 7
Special Precautions ............................................................................................................................................. 7 Electrical Shock Hazard.................................................................................................................................... 7 Explosion Hazard.............................................................................................................................................. 8 Handling the Delicate Transducers ................................................................................................................... 8 Symbols used .................................................................................................................................................... 9
REFERENCE ......................................................................................................... 10
FETATRACK 310 front panel controls.......................................................................................................... 10 Recorder On/Off ............................................................................................................................................. 10 Front Panel Event Mark .................................................................................................................................. 10 Volume Up...................................................................................................................................................... 10 Volume Down................................................................................................................................................. 10 US1 / US2 Transducer Select ......................................................................................................................... 10 Toco Zero ....................................................................................................................................................... 10
Indicators and Connectors ............................................................................................................................... 11 Power on Indication ........................................................................................................................................ 11 RS232 output .................................................................................................................................................. 11 Remote (patient) Event Marker....................................................................................................................... 11 Probe Connection............................................................................................................................................ 11
Internal Layout ................................................................................................................................................. 12 Dismantling Procedure.................................................................................................................................... 12
Circuit Description ........................................................................................................................................... 13 Power supply Circuit....................................................................................................................................... 13 Ultrasound Circuit........................................................................................................................................... 14 Audio Amplifier.............................................................................................................................................. 14 Signal Pre-processing...................................................................................................................................... 15 Toco Circuit .................................................................................................................................................... 15 Microprocessor Circuit ................................................................................................................................... 16 Printer Interface .............................................................................................................................................. 16
Test Procedures................................................................................................................................................. 17 Introduction..................................................................................................................................................... 17 Performance Checks ....................................................................................................................................... 17
Test Procedure .......................................................................................................Error! Bookmark not defined.
Parts Lists and Drawings ................................................................................................................................. 23
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Ultrasound Technologies Ltd
This booklet explains the operation and service of the FETATRACK 310 Antenatal Cardiotocograph. Care has been taken during the design and manufacture of this product so that it meets all of the current safety standards set down by IEC601-1 : 1988. If you require assistance understanding any part of this document, or have any questions relating to the operation of the FETATRACK 310 please contact: Ultrasound Technologies Ltd Lodge Way Caldicot NP26 5PS UK Tel +44 (0) 1291 425425 Fax +44 (0) 1291 427093 EMAIL [email protected] This service manual contains circuit descriptions, diagrams, parts and spares lists is available for the FETATRACK 310 that are correct at the time of printing. Due to continuous improvement certain sections may differ in newer units if you have any doubt please contact the address above. To maintain the FETATRACK 310’s performance it is recommended that it be included in a periodic maintenance programme.
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Ultrasound Technologies Ltd Specification
Ultrasound Frequency 1.8 and 2.1 MHz continuous wave Transducer Multi element wide angle Audio Response 300 - 1 Khz Range 50 - 210 bpm (European), 30 – 240 bpm (Americas) Power Output <20mW/cm2 Indicators LCD heart rate and pulse indication Toco Transducer Differential External pressure transducer Response 0 - 5 Hz Scale 0 - 100 Indicators LCD Toco level indication Data Presentation strip chart recorder and alphanumeric / graphic display module. Printhead 104mm thermal solid state printhead Resolution 8 dots / mm Speeds 1,2,3,cm/min Paper Z fold pre-printed chart scale Paper type Plain black thermal Display 32 character by 2 line LCD display module Keys 6 Keys (for paper start /stop, Volume up , Volume down, HR1/2, Toco Zero and Event.) Indicators Green power on/ off Data Storage Paper Out 30 min out paper storage with power connected Data File (optional) In excess of 48 hours of full resolution data Upto 16 separate patient files with storage limit. Power Supply AC input voltage 200 - 260 VAC or 100 - 130 VAC (User selected) Frequency 46 - 64 Hz Power 60VA Enclosure Material Aluminum. Safety Classification Class 1 Type B IEC60601-1 Computer interface Transfer 3 wire RS232 Data Rate 9600 baud Data Standard 8 bits no parity 1 stop bit
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Ultrasound Technologies Ltd
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Ultrasound Technologies Ltd User Configuration
Firstly connect the AC supply cord. It is necessary to set the operation of the FETATRACK 310 to meet your requirements. Before turning the FETATRACK 310 on, press and hold down the Toco Zero button. Then, whilst keeping the Toco Zero button pressed down, turn the FETATRACK 310 on by flicking the AC input on/off switch which is located on the rear of the unit as part of the AC line input socket. When the unit is on the front panel LED will be illuminated.
The FETATRACK 310 starts and then enters its User Configuration Mode, release the Toco Zero button as soon as ‘Calibrate System’ is displayed . You are then prompted to enter the date if different to that displayed. To change the day and month press the Volume Up button. One press advances the day by one, pressing the Volume Up button for longer advances the day by 10. To change the year press the Volume Down button. One press advances the year by one, pressing the Volume Down button for longer advances the year by 10. When the correct date is displayed press the Toco Zero button once. You are then prompted to enter the time if different to that displayed. This works in a similar manner to the date with the Volume Up button advancing the hours and the Volume Down button advancing the minutes. When the correct time is displayed press the Toco Zero button once. You are then prompted to enter the Toco Base Line offset. This sets an artificial zero line for the toco transducer above zero, it can be set by pressing the Volume Up or Volume Down buttons for a value between 0 - 20. After setting this value the Toco will be set to this every time the Toco Zero switch is pressed, and allows small negative Toco excursions to be seen on the chart. When the correct time is displayed press the Toco Zero button once. You are then prompted to enter the Toco Filter Value. This sets the filtering within the monitor to produce a smoother Toco trace if required. ( The filter can remove some of the maternal breathing artefact). It is set by pressing the Volume Up button for a value soothing value between 1sec and 2sec.. When the correct filter value is displayed press the Toco Zero button once. You are then prompted to enter the Toco Range. This sets the response of the Toco transducer to either a full scale of 100 or 200 on the chart print out. It is set by pressing the Volume Up button for a value between 100 and 200.. When the correct range is displayed press the Toco Zero button once.
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Ultrasound Technologies Ltd
You are then prompted to enter the Chart recorder speed. This sets the initial turn-on speed of the chart recorder. Then once the chart is running the speed can be further changed to 1 ,2 or 3 cm/min. It is set by pressing the Volume Up button for a value of 1, 2 or 3 cm/min.. When the correct speed is displayed press the Toco Zero button once. You are then prompted to select the Data Block on or off. The Data Block is printed at the start of each recording, this function can be disabled by setting Data Block to off. It changes from on to off and back again by pressing the Volume Up button.. When the Data Block is set to your requirements press the Toco Zero button once. You are then prompted to select the Tachycardia Alarm on or off. The Tachycardia Alarm is triggered when the system detects a Tachycardia above 170 bpm and an alarm tone sounds. The alarm is tone is stopped by pressing the units volume button. Tachycardia Alarm can be set to on to off and back again by pressing the Volume Up button.. When the Tachycardia Alarm is set to your requirements press the Toco Zero button once. You are then prompted to select the Bardycardia Alarm on or off. The Bradycardia Alarm is triggered when the system detects a Bradycardia below 100 bpm and an alarm tone sounds. The alarm is tone is stopped by pressing the units volume button. Bradycardia Alarm can be set to on to off and back again by pressing the Volume Up button.. When the Bradycardia Alarm is set to your requirements press the Toco Zero button once. The FETATRACK 310 will then restart and operate according to your settings. The FETATRACK 310 is now operational, and the LCD screen will show US1 --- us2 --- (if the unit is only a single fetus monitor it will only display US1 ---) and a Toco value.
Special Precautions
Your FETATRACK 310 Antenatal Cardiotocograph has been designed for electrical safety. All the safety and operating instructions should be read before operating the FETATRACK 310. Failure to do so could result in injury to the user, patient or damage to the System and accessories.
Electrical Shock Hazard
Do not defeat the grounding integrity of this System. Protection against electrical shock, in the event of failure of basic insulation, is provided by the connection of the chassis to the safety ground. Safety grounding occurs only when the 3-wire cable and plug provided with the system are connected to a properly grounded receptacle.
Do not remove the System cover. The System should be serviced by trained and qualified personnel only. Contacting the hazardous voltages within the System could cause serious injury.
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Ultrasound Technologies Ltd Do not use the System if the power cord has any cuts or openings. Do not use the transducer if the cable has any cuts or openings. Do not use the transducer if the transducer face is cracked or chipped. Do not immerse the transducer cable connectors in any liquids. Electrical shock could result. Should the electrical safety fuses have to be replaced, use only fuses of the same type and rating.
Explosion Hazard
Do not operate or use this system in the presence of flammable anaesthetics or gases as it could lead to explosion.
Handling the Delicate Transducers
The transducers are delicate parts of the ultrasound system and should be treated with care. The delicate crystals in the transducer may crack and render the transducer unusable if the transducer is subject to shock. Room temperature liquids should be used for cleaning. Never use alcohol or mineral oil as an acoustic coupling agent as transducer or cable damage could occur.
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Ultrasound Technologies Ltd Symbols used.
The following symbols are used on the FETATRACK 310 and are in accordance with IEC60601-1 : 1990.
Where they are associated with the connection of external equipment, that equipment in all cases must meet the relevant safety standard.
Alternating current Associated with power on indicator
Type B Equipment Unit classification
Off (power: disconnection from the mains)
On (power: connection to the mains)
Attention, consult accompanying documents. Associated with auxiliary connections see operating instructions.
Dangerous voltage. Associated with components internal to the FETATRACK 310.
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Ultrasound Technologies Ltd FETATRACK 310 front panel controls
The front panel keyboard area contains 6 keys used to control the operation of the unit, they are all indicated by Icons to aid language variations.
Toco Zero. Sets Toco channel to preset baseline value.
Select ultrasound channel for audio output and twins split trace.
Volume Down
Volume Up Event Mark 1. Places arrow in upper portion of chart
Recorder On / Off and speed control
Recorder On/Off and speed change
This key is used to control the operation of the recorder. Press once and the chart recorder will start, each consecutive short press will change the speed . Press and hold the key will stop the recording.
Event Mark 1
Places an event mark arrow at the top of the FHR scale .
Volume Up This key is used to increase the audio volume level, or in configuration mode to change user options.
Volume Down
This key is used to decrease the audio volume level. US1 / US2 Transducer Select
Pressing this key changes the selected probe from US1 to US2 for volume output. This is used when the unit is in Twins mode with two US channels for listening to either of the two fetus.
Toco Zero This key zeros the toco trace to the selected baseline.
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Ultrasound Technologies Ltd Inputs / outputs and displays
Power on Indication
The green LED associated with the above symbol when bright indicates that power is connected to the apparatus.
RS232 output
This output is for the connection of an external computer for data transfer. The maximum voltage that can be applied to this output is 15VDC. WARNING: Any external equipment connected to this output must meet the relevant safety standard.
Remote Event Marker
Connection of an external event mark switch allows the patient to indicate events by printing an arrow in the gap between the FHR and UA traces. The maximum voltage that can be applied to this output is 15VDC.
Probe Connections US1, US2, Toco
This is for the connection of approved Doppler and toco transducers. The maximum voltage that can be applied to this output is 15VDC.
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Ultrasound Technologies Ltd Internal Layout
With the top cover removed and the front panel facing you, there is one large printed circuit board fixed to the base of the monitor this contains all the power supply circuits, all the control circuits and the Ultrasound, Toco and digital signal processing circuits. In addition, there is the Front panel displays, keyboard interface and printer drive circuits card mounted on the Lid of the unit.
Dismantling Procedure
Note: Before disassembling the unit, unplug the transducers, accessories cable (if present), and the power cord from the instrument. To remove the Top Cover, remove the four screws around the edge on the bottom of the unit. Open the recorder door and then carefully lift the lid upwards. The Top Cover can now be removed taking care to disconnect the earth bonding cable connecting the lid to the base, and carefully disconnecting the front panel pcb interface cables. The recorder and display module can be removed from the lid by careful removal of the 2 screws holding the parts in place. Be careful not to loose the spacers lying behind these cards.
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Ultrasound Technologies Ltd Circuit Description Power supply Circuit
The 240/110 VAC supply enters the FETATRACK 310 via an IEC double fused inlet / mains filter and switch and is fed to a torroidal transformer. The input supply voltage is stepped down to a nominal 24 VAC and is then bridge rectified by D19, smoothed by C140.
Regulated Supplies
The voltage regulators (U28 and U29) are fed from D19 at a voltage of around 36VDC. These oscillate at approximately 120 KHz transferring pulses of current into L12 and L14 respectively. The output of inductor is fed back directly into U28 (29) which at pin 1 is reference comparator and alters the pulses transferred into the inductor to obtain a stable voltage output. The output of U28 is 5V DC and U29 is 12V DC. Pulses of current in to inductor L14 are also taken into a charge pump to provide a stable –12V DC after regulator transistor Q14. D19 also supplies current to the printhead and motor drive circuits via Q13 and U30 which provides a stable 24V DC .
Printhead and Motor Drive Supply
The printhead requires pulses of current equalling 10A but for a very small amount of time, therefore current is taken from the charge built up in C130 rather than expecting the power supply to supply the pulses. Q13 is connected as an ON/OFF switch to the printhead voltage circuits to act as protection. An explanation of its operation can be found in section PRINTER INTERFACE. When ON, current is fed to U30 connected as a variable voltage regulator with a range of +18 v to +24 v where VR1 adjusts this voltage.
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Ultrasound Technologies Ltd Ultrasound Circuit Overview
The ultrasound circuit is built up of four discrete sections. These are: Oscillator and Transmitter amplifier Receiver and Detector Audio amplifier Signal pre-processing. These operate to produce a continuous wave of 2MHz ultrasound which is passed to the transmitter crystal in the transducer. The signal is then reflected from moving interfaces within the body to the receiver crystal in the transducer, amplified and then detected so the audio Doppler shift of that moving interface can be heard audibly or passed via signal pre-processing to the A/D converter for rate calculation. The circuit board has the option of two ultrasound circuits which operated at different frequencies, the operation of each is identical as so only one is described here. The current nominal frequencies are 2.1MHz for US1 and 1.8MHz for US2.
Oscillator and Transmitter output.
L4 forms an oscillator with Q4 and its associated capacitors producing a sine wave drive at the required frequency. This is fed via a high current output driver Q1 and output transformer L1.
Receiver and Detector
The reflected Ultrasound signal is fed via a resonant transformer L1 to the gate of Q3, the drain of this FET connects to the source of Q2 to form a cascode amplifier From the drain of Q2 the amplitude complex of the received signal is detected by passing the signal through a detector diode D3 . The raw low frequency heart complex is then amplified and filtered by U1 where its associated components form a bandpass filter amplifier with a bandwidth of 150Hz to 1KHz. This signal is passed to the audio section and the signal pre-processing .
Audio Amplifier
The audio signal then passes to a input selector U25 where the user can select via the front panel which Ultrasound channel will pass to the audio circuits and then to digital gain control U24 and buffer amplifier U32, where the volume setting is determined by the microprocessor subject to the user setting. From here the gain controlled signal is fed to the input of a monolithic power amplifier U27 and from here to the loudspeaker at J11.
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Ultrasound Technologies Ltd Signal Pre-processing
The detected audio complex is fed to U5 a bandpass amplifier where the filter characteristics are arranged to reject signals below 150Hz and above 1KHz , and the output is taken do a digital AGC U3. The amplitude stabilised signal is then amplified and full wave rectified by U2 . This full wave rectified signal is then buffered and smoothed by an active filter. The smoothing is achieved by the low pass active filter having a 3db at 5Hz hence giving the average value of the audio complex. This signal is then passed to the A/D converter stage of the cpu U8 for further digital signal processing .
Toco Circuit
A stabilised 5V is fed to the toco transducer along with 0V which form the excitation of a Whetstone bridge in the transducer. The Differential output of the transducer is fed via a high gain differential amplifier U26 to a low pass filter U32 for signal smoothing into the A/D converter U11 further digital signal processing U8. Toco Zero is automatically adjusted by D/A converter U31 providing an offset voltage into the input of U32 . Overall gain is adjusted by VR2.
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Ultrasound Technologies Ltd Microprocessor Circuit
The microprocessor circuit is arranged around MC68HC812 a fast second generation central processing unit (CPU). When power is applied to the circuit a monitor circuit waits for the power rail to become stable and then 100 ms later takes the reset on the CPU high (logic 1) to 5 v. This starts the CPU working by reading the bytes at the very top of its memory map from the EPROM (ROM). This shows the CPU the start position in ROM from which to start executing. This sets up all the peripheral devices, which includes an interrupt timer, starts the system clock which consists of interrupts from the cpu to the watchdog ic at the rate of 1 every millisecond. As all functions are time dependant nothing starts without this clock. The CPU now reads all the preset variables from the battery protected RAM within the real time clock. The battery source is a lithium 3.6 v cell with a nominal life of 10 years.
After the CPU has loaded the variables it rums a system check for any internal problems which are reported on the system display. Selection of the individual devices is controlled by cpu internal the chip select circuits. Most analogue signals eventually require digital signal processing for display, chart recording or digital transmission, the signals are presented to CPU, where an internal 8 bit A/D converter with an 8 way multiplexed input converts the signals to digital form. The converter accepts unipolar signals of 0 - 5 v.. The CPU with the display and keyboard circuit using on chip peripheral interface , as well as detecting selection of ultrasound and the presence of an Event keypress.
Printer Interface
A proportion of the micro-circuit is dedicated to printer interface and control, the primary interface circuit contains timers, serial drivers and peripheral drivers. The principal of operation of the printhead and motor drive circuit is as follows : Data is decoded by the software into bit positions within the allowable area of the printhead . This data is then passed in serial form with a clock signal into the printheads serial buffer. The data is latched by a pulse from the cpu via CMOS buffer, this gives added protection in the case of device failure. Data is then burnt onto the printhead by strobes 1 to 4 from the cpu which last less than 1 mS . Under normal conditions with the printer OFF there is no supply connected to the printhead or chart motor. Only when printing is requested does the cpu turn on the 24VDC supply. The cpu also drives the chart recorder stepper motor via the high current microstep interface.
Data Storage (optional)
Full resolution patient data is stored on the optional data file when fitted to the unit. The file can store in excess of 48 hours of data that can be subdivided into 16 separate patient files. The data can be recalled to strip chart recorder or to UltraTrace fetal PC software. The Data file card is fitted to the serial 2 channel of the controller card.
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Ultrasound Technologies Ltd Test Procedures Introduction
The following sections details tests to ensure that the FETATRACK 310 is operating within specification. These tests may be performed in whole or part, however, if any repairs are carried out to the power supply circuits then it is recommended that the whole test/calibration procedure is undertaken.
The test procedures may be performed without removal of the circuit board from the unit.
Performance Checks
The following procedure is intended to provide a means of determining the functional status of the unit. It should be included as part of a preventive maintenance plan and should be performed on a regular basis. 1) Plug the monitor line cord into a grounded receptacle of suitable line voltage and frequency as indicated on the rear panel of the FETATRACK 310 . 2) Turn monitor on. The green front panel LED will illuminate. 3) The display will first show the system selftest followed by the software revision This indicates the instrument is switched on and awaiting inputs.
4) Load chart paper to recorder (for assistance see operating instructions) ensure paper is correctly aligned. 5) Depress printer on/off and recorder will run at either 1,2 or 3 cm/min dependent on the user preset value.
Ultrasound
6) Connect ultrasound transducer to the yellow or blue US sockets on the front panel and increase volume to maximum. 7) Place transducer in palm of hand and gently stroke the back of the hand at a constant rate of about 2 times a second. 8) Check audio volume is present, digital display will display the simulated rate (approx 120 ) and correspond with the data being printed on the chart paper.
UA / Toco / Contractions
9) Connect the toco transducer to the grey UA input socket on the front panel and press UA zero to set the baseline (baseline resets to value 1 -> 20 as selected in set up procedure). 10) Apply pressure onto the centre of transducer and check that the toco trace on chart recording increases to 100 + 10%. Remove load and trace will return to baseline.
Event Marker
11) Connect the hand held remote event marker to the external mark socket. Depress the button once and note that a half arrow is printed on the bottom of FHR recording.
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Ultrasound Technologies Ltd Setting up the monitors
The mode of operation of the monitor is programmable through the front panel to give a certain amount of customisation. The programming mode is entered by pressing and holding UA Zero while turning the monitor ON. Details of the user programmable options are at the beginning of this manual.
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Ultrasound Technologies Ltd Parts lists
The following section contains parts list for the FETATRACK 310.
FETATRACK 310 Control Board Device Value Ref Quantity
Capacitor electrolytic 10000uF Electrolytic 35V Panasonic TSUP snap in C130 1
Capacitor electrolytic 1000uF Electrolytic 35V Panasonic EEUFC1V102 C134 1
Capacitor electrolytic 270uF Electrolytic 16V Panasonic FC C142,148 2 Capacitor electrolytic 220uF Electrolytic 35V BCC 136 60221 C96,108,133,138 4
Capacitor electrolytic 120uF Electrolytic 50V Panasonic EEUFC1H121 C131,136 2
Capacitor 100uF Electrolytic 16V ssm 16V C22,30,38,65,73,81,99,119,156 9 Capacitor electrolytic 22uF 100V Panasonic EEUFC2A220 C143,146,151 3 Capacitor sm 1206 1uF Ceramic Z5U 1206 C37,80,160,162 4
Capacitor sm 0805 100nF Ceramic X7R 0805
C1,2,6,10,11,13,14,19,20,21,23,24,27,28,32,33, 40,41,44,45,49,53,54,56,57,63,64,66,67,70,71,75,76, 83,84,87,90,91,93,94,97,98,100,104,105,106,107, 109,110,111,113,114,115,116,117,120,121,122,123,125,127,128,129,132,135,141,145,149,150,154,155,157,158,159,161,163,164, 77
Capacitor sm 0805 47nF Ceramic X7R 0805 C43,86 2 Capacitor sm 0805 33nF Ceramic X7R 0805 C88 2
Capacitor sm 0805 10nF Ceramic X7R 0805 C9,18,29,34,35,36,39,52,61,72,77,78,79,82,137,140, 16 Capacitor sm 0805 4n7F Ceramic X7R 0805 C112 1 Capacitor sm 0805 3n3F Ceramic X7R 0805 C89 1 Capacitor sm 0805 1nF Ceramic COG 0805 C4,8,17,26,42,47,60,62,69,85,124 11 Capacitor sm 0805 680pF Ceramic COG 0805 C7,15,50,58 4 Capacitor sm 0805 470pF Ceramic COG 0805 C48 1 Capacitor sm 0805 220pF Ceramic COG 0805 C3,16,46,51,55,59 6 Capacitor sm 0805 100pF Ceramic COG 0805 C5 1 Capacitor sm 0805 47pF Ceramic COG 0805 C12 1 Capacitor sm 0805 22pF Ceramic COG 0805 C101,102 2 Capacitor sm 10uF Tantalum 20V Case size B C153 1 Capacitor sm 1uF Tantalum 35V Case size A C118,126,139,144 4 Capacitor sm 0u47F Tantalum 25V Case size A C25,31,68,74 4 IC Digital sm CD74HCT04D U15 1 IC Digital sm CD74HCT541E U16 1 IC Digital sm MC68HC812A4 U8 1 IC Digital sm AM27C256-150JC U9 1 IC Digital sm HM62256 (uPD43256BGU-70LL) U22 1 IC Digital sm NJM3777E3 (PBL3777so) U20 1 IC Digital sm NJU39612E2 (PBM3962so) U23 1 IC PSU sm LT1076CQ U28,29 2 IC PSU LM338T U30 1 IC RTC sm DS1305E U13 1 IC Digital sm MAX202E U14 1 IC Digital sm MAX549ACUA U31 1 IC Digital sm MAX1243BESA U11 1
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Ultrasound Technologies Ltd IC Analogue sm ZM33064G U12 1 IC Analogue sm DG211DY U25 1 IC Analogue sm LM324M U1,2,4,5,6,26,32 7 IC Analogue TDA2614 U27 1 IC Analogue sm X9C103S U3,7,24 3 IC Analogue sm LM336M - 2.5 U10 1 IC Socket sm PROM 32way plcc U9 1 Diodes sm IR10BQ040 D20,21,22,23 4 Diodes sm BAS16 D1,2,6,7,9,10,14,15,17,18,24,25 12 Diodes sm BAT54 D3,11 2 Diodes sm BZX84 C5V1 D4,5,8,12,13,16,26 7 Diodes sm BZX84 C6V2 D27,28 2 Diodes Bridge GBU4A D19 1 Transistor RFD8P05SM Q13 1 Transistor sm BC848B Q1,5,6,10,11,12 6 Transistor sm FZT949 Q14 1 Transistor sm MMBF4416LT1 Q2,3,4,7,8,9 6 Crystal 32KHz 85SMX X2,3 2 Resistors 1% sm 0805 1R R95,96,117,118 4 Resistors 1% sm 0805 10R R2,6,40,44,133,158 6 Resistors 1% sm 0805 22R R14,52,100,132, 4 Resistors 1% sm 0805 100R R1,9,32,36,39,47,70,74108,110,122,152, 12 Resistors 1% sm 0805 120R R141 1 Resistors 1% sm 0805 470R R18,56,165 3 Resistors 1% sm 0805 1K0 R13,17,37,51,55,75,120,121,130,148,149,179, 12 Resistors 1% sm 0805 1K2 R79,82,125 3 Resistors 1% sm 0805 1K5 R8,46 2 Resistors 1% sm 0805 2K2 R11,19,49,57,140,143 6 Resistors 1% sm 0805 2K7 R135,138,139 3 Resistors 1% sm 0805 3K3 R180,181 2 Resistors 1% sm 0805 4K7 R34,72,144,150,151,154,155 7
Resistors 1% sm 0805 10K
R5,20,21,22,23,24,35,38,43,58,59,60,61,62,73,76,78, 81,83,85,86,87,88,89,90,91,92,93,94,97,99,101,104,106, 111,112,114,115,116,123, 126,131,142, 153,160,161,162,167,168,172,173,174,176,178, 54
Resistors 1% sm 0805 12K R119 1 Resistors 1% sm 0805 15K R98,128 2 Resistors 1% sm 0805 16K R84 1 Resistors 1% sm 0805 22K R27,65,137,156,157 5 Resistors 1% sm 0805 27K R7,45,77,80,127 5 Resistors 1% sm 0805 36K R25,63 2 Resistors 1% sm 0805 47K R30,68,124 3 Resistors 1% sm 0805 68K R12,16,28,50,54,66 6
Resistors 1% sm 0805 100K R3,4,10,15,29,33,41,42,48,53,67,71,109,134,136,170,171 17 Resistors 1% sm 0805 180K R26,64 2 Resistors 1% sm 0805 220K R163,177 2
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Ultrasound Technologies Ltd Resistors 1% sm 0805 330K R31,69,129,145,147,175 6 Resistors 1% sm 0805 680K R169 1 Resistors 1% sm 0805 1M R146 1 Resistors 2% sm 0805 10M R113 1 Variable R Multiturn 2K0 - Bourns 3224W VR1 1 Variable R Multiturn 5K0 - Bourns 3224W VR2 1 Inductor 22uF Panasonic ELC L10,15 2 Inductor 100uH Torroid L12,14 2 Inductor Toco 215PN0838X L1,L5 2 Inductor Toco 215PN0842Z L3,7 2 Inductor Toco 215PNA0841HF L4,8 2 Inductor Toco 215PN0876N L2,6 2 Connector Molex 2 way header 22-27-2021 J7,11 2 Connector Molex 4 way header 22-27-2041 J8,9,10 3 Connector Molex 6 way header 22-27-2061 J1,2,12 3 Connector Molex 8 way header 22-27-2081 J5 1 Connector Molex 14 way header 22-27-2141 J4 (- 15 way with 1 pin removed) 1 Connector Molex 15 way header 22-27-2151 J6 1
Connector 9 way RS232C D female McMurdo SDBX25PNTD J3 1
FETATRACK 310 Chassis Assembly Device Value Ref Quantity 310 Base FM1D108 1 Mains Inlet Filter PS0SXDH6A 1 Fuses 20mm 500mA T 2 Transformer FEC 148-958 60VA 25 / 25 V 1 Molex Housing PN 22-01-2025 2 way 2 Molex Housing PN 22-01-2045 4 way 5 Molex Housing PN 22-01-2065 6 way 2 Molex IDT PN 22-50-3125 12 way 3 Molex crimps 26 Loudspeaker FEC 745-637 3in 10W 1 Redal Connector Yellow PLG.M0.4GL.LJ 1 Redal Connector Blue PLG.M0.6GL.LA 1 Redal Connector Grey PLG.M0.5GL.LG 1 Jack socket 0.25 in 1 Feet RS 226-375 Pack of 4 1 Spade terminal 0.25 rt angle 2 Faston Connector 0.25in shrouded 5 Eyelet Connector 3mm 1 Tyrap RS 543-428 TB RSTY100-18-100 10 Tyrap Base RS 666-751 Hellermann MB2A-NAT 1 Spacer (boards) 25mm/ M3 piller 3 Spacer (speaker) M3 Full Nut ss 4 Screws M3x8 pozi pan ss 4 Screws M3x6 pozi pan ss 6 Washers M3 plain ss 13 Shakeproof M3 internal ss 13 Nuts M3 Full ss 7 Screws M3.5x10 pozi pan ss 4 Shakeproof M3.5 internal ss 4 310 Control PCB Assembly 1 Recorder Assy Assembly 1 310 Cover 1 LCD MDLS16268C-LV 1 Molex Housing M 22-01-2115 15 Way 1
©Ultrasound Technologies Ltd Issue 1 December 2004 Page 22
Ultrasound Technologies Ltd Molex Crimps 14 2 Spacer Switch Board 3.3mm x 8mm Al (FEC 151-045) 4 Spacer Display 3.3mm x 6mm Al / ss (FEC 146-
322) 4
Spacer Display M3 plain ss washer (fit between spacer and Lid)
8
Faston Connector 0.25in shrouded 1 Eyelet Connector 4mm 1 FEC 712-176 White UL1061 FEC 0.09 Tyrap TB RSTY100-18-100 4 Washers Display and switch fixing M3 plain ss 8 Shakeproof Display and switch fixing M3 internal ss 8 Nuts Display and switch fixing M3 Full ss 8 Screws Lid fixing M3.5x10 pozi pan ss 4 Shakeproof Lid fixing M3.5 internal ss 4 Washers Lid fixing M3.5 plain washer ss 4 Shakeproof Earth Bond Fixing M4 internal ss 1 Nuts Earth Bond Fixing M4 Full ss 1 310 front panel PCB Assembly 1 TOCO Transducer Device Value Quantity US Buckle - Grey TM1D101-104 1 Transducer Cover TM1D100-104 1 Toco Faceplate TM1D102-103 1 Toco Button TM1D106-102 1 Toco Cable Assembly TM1D112 1 Strain Gauge and Diaphragm FMD105-101 1 Connector Plug Redel Grey PAG.M0.5GL.AC39G 1 Screw Stainless steel M2x5 mm Pozi pan 5 Screw Stainless steel M3x6 mm Pozi csk 1 Insert M3 PEM KFS2-M3 1 PCB FM1D110 1 Ultrasound Transdcuer 1.8MHz US2 Device Value Quantity US Buckle - Blue TM1D101-104 1 Transducer Cover TM1D100-104 1 Transducer Faceplate TM1D104-103 1 Ultrasound Cable Assembly TM1D111 1 Crystals 1.8 MHz 10mm 6 Connector Plug Redel Blue PAG.M0.6GL.AC39A 1 M3 Insert PEM KFS2-M3 1 Screw Stainless steel M2x5 mm Pozi pan 3 Screw Stainless steel M3x6 mm Pozi csk 1 PCB TM1D105 1 Ultrasound Transducer 2.1MHz US1 Device Value Quantity US Buckle - Yellow TM1D101-104 1 Transducer Cover TM1D100-104 1 Ultrasound Faceplate TM1D104-103 1 Ultrasound Cable assembly TM1D111 1 Crystals 2.1MHz 10mm 6 Connector Plug Redel Yellow PAG.M0.4GL.AC39J 1 M3 Insert PEM KFS2-M3 1 Screw Stainless steel M2x5 mm Pozi pan 3 Screw Stainless steel M3x6 mm Pozi csk 1 PCB TM1D105 1
©Ultrasound Technologies Ltd Issue 1 December 2004 Page 23
Ultrasound Technologies Ltd This section contains the following circuit diagrams:- PCB circuit
Control PCB Placement Diagram Ultrasound 1 Circuit Ultrasound 2 Circuit Digital Printer Control and user interface Circuit Power Supplies and Audio Circuit Toco Circuit Front panel PCB Placement Diagram Frontpanel Circuit
This section contains the following engineering drawings:-
Fetatrack 310 Interconnection Detail General Assembly Ultrasound Transducer Assembly TOCO Transducer Assembly
12
34
56
78
12
34
56
78
A B C D
A B C D
C7
680p
F
C15
680p
F
C12
47pF
R26180K
C5
100p
F
R791k2
BAT54D3
23
+C
310u
47F
+C
250u
47F
L308
42
1 3
MMBF4416Q4
1D
3G
2S
MMBF4416Q3
1D
3G
2S
MMBF4416Q2
1D
3G
2S
R1422R
C16
220p
F
C23
100n
F
C24
100n
F
C27
100n
F
R11
2K2
R192K2
R8
1K5
L408
41
1 2 3
L208
76
1 2 3
4 6
D5
BZX8
4C5V
1
23
D4
BZX8
4C5V
1
23
D8
BZX8
4C5V
1
23
R37
1K0
R17
1K0
R131K
0
J1
1 2 3 4 5 6
R18
470R
L108
38
1 3
4 6
Sout
h W
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6 5P
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ies
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Dat
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Shee
tN
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FT31
0M~1
15
R25
36K
BAS1
6D
6
2 3
BAS1
6D
7
2 3
BAS1
6D
1
23
BAS1
6D
2
23
R2722K
R3047K
R344K7
R12
68K
R16
68K
R2868K
U3
X9C
103
7C
S
1IN
C
2U
/D
8VC
C3
VH
6VL
4
VSS
5V
W
C4347nF
R31330K
LM32
4M
U1
12I+
13I-
4 11
14
LM32
4M
U2
12I+
13I-
4 11
14LM
324M
U2
5I+
6I-
4 11
7LM
324M
U2
3I+
2I-
4 11
1
LM32
4M
U2
10I+
9I-
4 11
8
LM32
4M
U1
5I+
6I-
4 11
7
LM32
4M
U1
3I+
2I-
4 11
1
LM32
4M
U5
12I+
13I-
4 11
14LM
324M
U1
10I+
9I-
4 11
8
LM32
4M
U5
3I+
2I-
4 11
1
C3610nF
C1810nF
C2910nF
C910nF
C3510nF
C3410nF
C39
10nF
R7810K
R2210K
R2110K
R3510K
R2010K
R2310K
R2410K
R3810K
R5
10KR6
10R
R2
10R
R32
100R
R36
100R
R9100R
R1100R
R15100K
R10
100K
R33100K
R29100K
R3
100K R
410
0K
BC84
8BQ5
2 B
3C
1E
BC848BQ1
2B
3C
1E
+C
3810
0uF
+C
2210
0uF
+C
3010
0uF
C19
100n
F
C40
100n
F
C33
100n
F
C41100nF
C32100nF
C1
100n
F
C28
100n
F
C20
100n
FC
1310
0nF
C10
100n
F
C21
100n
FC
1110
0nF
C14
100n
F
C6
100n
F
C2
100n
F
R7727K
R7
27K
C3
220p
F
C81nF
C4
1nF
C17
1nF
C261nF
C421nF
C371uF
Vrf1
+12V
UST
x1+1
2V+1
2V+1
2V
neg1
2Vne
g12V
neg1
2V
Vcc
+12V
FH1_
Audi
o {0
4}U
STx1
INC
{02,
03,0
4}Vr
f1U
/D {0
2,03
,04}
+12V
neg1
2VR
xSig
1C
S_Ag
c_U
S1 {0
3}+1
2V
Tdr_
Sens
e_U
S1
neg1
2V
neg1
2V
RxS
ig1
+12V
+12V
+12V
+12V
neg1
2Vne
g12V
neg1
2V
neg1
2V
Feta
l_C
ompl
ex_F
H1
{03}
Vcc
Tdr_
Sens
e_U
S1U
S1_c
onne
cted
{03} +1
2V
neg1
2V
Mar
01
188
3
May
00
June
00
21
NAS
PFM
1R U
ltras
ound
1 C
ircui
t
2.1M
Hz
Tran
smitt
er /
Rec
eive
r
AGC
Aver
age
valu
e ci
rcui
t
Ultr
asou
nd T
rans
duce
r con
nect
ion
12
34
56
78
12
34
56
78
A B C D
A B C D
C50
680p
F
C58
680p
F
R64180K
R821k2
BAT54D11
23
+C
740u
47F
+C
680u
47F
L708
42
1 3C48
470p
F
MMBF4416Q9
1D
3G
2S
MMBF4416Q8
1D
3G
2S
MMBF4416Q7
1D
3G
2S
R5222R
C59
220p
F
C66
100n
F
C67
100n
F
C70
100n
F
R49 2K
2
R572K2
R46 1K
5
L808
41
1 2 3
L608
76
1 2 3
4 6
D13
BZX8
4C5V
1
23
D12
BZX8
4C5V
1
23
D16
BZX8
4C5V
1
23
R75
1K0
R55
1K0
R51
1K0
J2
1 2 3 4 5 6
R56
470R
L508
38
1 3
4 6
Sout
h W
ales
. NP2
6 5P
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2003
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NIs
sue
Dra
wn:
Ultr
asou
nd T
echn
olog
ies
Ltd
Dat
e:of
Shee
tN
ame:
FT31
0M~1
25
R63
36K
BAS1
6D
14
2 3
BAS1
6D
15
2 3
BAS1
6D
9
23
BAS1
6D
10
23
R6522K
R6847K
R724K7
R54
68K
R50 68K
R6668K
U7
X9C
103
7C
S
1IN
C
2U
/D
8VC
C3
VH
6VL
4
VSS
5V
W
C8647nF
R69330K
LM32
4M
U4
12I+
13I-
4 11
14
LM32
4M
U6
10I+
9I-
4 11
8LM
324M
U6
3I+
2I-
4 11
1LM
324M
U6
5I+
6I-
4 11
7
LM32
4M
U6
12I+
13I-
4 11
14
LM32
4M
U4
5I+
6I-
4 11
7
LM32
4M
U4
3I+
2I-
4 11
1
LM32
4M
U5
10I+
9I-
4 11
8LM
324M
U4
10I+
9I-
4 11
8
LM32
4M
U5
5I+
6I-
4 11
7
C7910nF
C6110nF
C7210nF
C5210nF
C7810nF
C7710nF
C82
10nF
R8110K
R6010K
R5910K
R7310K
R5810K
R6110K
R6210K
R7610K
R43
10K
R44
10R
R40
10R
R70
100R
R74
100R
R47100R
R39100R
R53100K
R48
100K
R71100K
R67100K
R41
100K R42
100K
BC84
8BQ10
2 B
3C
1E
BC848BQ6
2B
3C
1E
+C
8110
0uF
+C
6510
0uF
+C
7310
0uF
C87
100n
F
C83
100n
F
C76
100n
F
C84100nF
C75100nF
C44
100n
F
C71
100n
F
C63
100n
FC
5610
0nF
C53
100n
F
C64
100n
FC
5410
0nF
C57
100n
F
C49
100n
F
C45
100n
F
R8027K
R45 27K
C55
220p
F
C51
220p
F
C46
220p
F
C621nF
C47 1nF
C60
1nF
C691nF
C851nF
C801uF
Vrf2
+12V
UST
x2+1
2V+1
2V+1
2V
neg1
2Vne
g12V
neg1
2V
Vcc
+12V
FH2_
Audi
o {0
4}IN
C {0
1,03
,04}
UST
x2
U/D
{01,
03,0
4}Vr
f2+1
2Vne
g12V
CS_
Agc_
US2
{03}
RxS
ig2
+12V
Tdr_
Sens
e_U
S2
neg1
2V
neg1
2V
RxS
ig2
+12V
+12V
+12V
+12V
neg1
2Vne
g12V
neg1
2V
neg1
2V
Feta
l_C
ompl
ex_F
H2
{03}
Vcc
Tdr_
Sens
e_U
S2U
S2_c
onne
cted
{03} +1
2V
neg1
2V
Mar
01
188
3Ju
ne 0
02
May
00
1
PFM
1R U
ltras
ound
2 C
ircui
t
NAS
AGC
Ultr
asou
nd T
rans
duce
r con
nect
ion
1.8M
Hz
Tran
smitt
er /
Rec
eive
r
Aver
age
valu
e ci
rcui
t
12
34
56
78
12
34
56
78
A B C D
A B C D
J6
1P1
10P1
011
P11
12P1
213
P13
14P1
415
P15
16P1
617
P17
18P1
819
P19
2P2
20P2
0
3P3
4P4
5P5
6P6
7P7
8P8
9P9
J7
1P1
10P1
011
P11
12P1
213
P13
14P1
415
P15
16P1
617
P17
18P1
819
P19
2 P2
20P2
0
3P3
4 P45
P56 P6
7P7
8 P89
P9
J81
C88
33nF
R84
16K
C89
3n3F
2725
6PLC
U9
23C
E25
OE
11A0
10A1
24A1
027
A11
3A1
230
A13
31A1
4
9A2
8A3
7A4
6A5
5A6
4A7
29A8
28A9
13O
014
O1
15O
218
O3
19O
420
O5
21O
622
O7
2VP
P
MC
68H
C81
2A4
U8
36XI
RQ
87AN
188
AN2
89AN
390
AN4
91AN
592
AN6
93AN
794
AN8
20PD
021
PD1
22PD
2
3PJ
04
PJ1
5PJ
26
PJ3
7PJ
48
PJ5
9PJ
610
PJ7
105
PT0
106
PT1
107
PT2
97R
XD0
99R
XD1
98TX
D0
85VR
H86
VRL
68C
S0
69C
S1
70C
S2
71C
S3
72C
SD
73C
SP0
37IR
Q
39LS
TRB/
TAG
LO
40R
ESET
104
SS
51AR
ST
29D
130
D2
31D
332
D4
33D
534
D6
35D
7
46EX
TAL
49IP
IPE0
/MO
DA
50IP
IPE1
/MO
DB
23PD
3
27PD
7
76PH
177
PH2
78PH
381
PH4
82PH
583
PH6
84PH
7
108
PT3
112
PT7
38R
/_W
100
TXD
1
44XF
C
47XT
AL
74C
SP1
52A0
53A1
62A1
063
A11
64A1
265
A13
66A1
467
A15
11A1
612
A17
13A1
816
A19
54A2
17A2
018
A21
55A3
56A4
57A5
58A6
59A7
60A8
61A9
19BK
GD
/_TA
GH
I
28D
0
48EC
LK
24PD
425
PD5
26PD
6
75PH
0
109
PT4
110
PT5
111
PT6
103
SCK
101
SDI/M
ISO
102
SDO
/MO
SI
R10
910
0K
DS1
305E
U13
7IN
T0
9IN
T112
CE
14SC
LK
18PF
4n/
c1
6N
/C2
8n/
c313
n/c4
19n/
c5
15SD
I
16SD
O
2VB
at
20Vc
c11
Vcc2
17Vc
cif
3X1
5X2
10G
nd11
serm
ode
R9815K
J39 Pi
n D
-Typ
e So
cket
1 2 3 4 5 6 7 8 9
U15 74
HC
T04D
1312
U15 74
HC
T04D
1110
U15 74
HC
T04D
98
U15 74
HC
T04D
56
U15 74
HC
T04D
34
U15 74
HC
T04D
12
ZM33
064Z
U12
1IN
3O
UT
+C
118
1u0F
NJU
3961
2E2
U23
16C
S
5W
R
14AO
13D
012
D1
11D
210
D3
9D
48
D5
7D
66
D7
2D
A1
19D
A215
NC
20R
eset
3SI
GN
1
18SI
GN
2
4VD
D
1Vr
ef17
Vss
MAX
202E
U14
8R
2in
9R
2out
10T2
in7
T2ou
t
2V+
6V-
1C
1+
3C
1-4
C2+
5C
2-
13R
1in
12R
1out
11T1
in14
T1ou
t
BATTB1
3.6V
+ -
X3 32KH
z
X2
32KH
z
R11
310
M
J91 2
HM
6225
6
U22
10A0
9A1
21A1
023
A11
2A1
226
A13
1A1
4
8A2
7A3
6A4
5A5
4A6
3A7
25A8
24A9
20C
S
22O
E
27W
E
11D
012
D1
13D
215
D3
16D
417
D5
18D
619
D7
28Vc
c
C10
010
0nF
C11
310
0nF
C11
110
0nF
C11
010
0nF
C10
910
0nF
C10
710
0nF
C10
510
0nF
C10
410
0nF
C11
710
0nF
C11
610
0nF
C11
510
0nF
C11
410
0nF
C10
222
pF
C10
122
pF
R1211K0
R12
01K
0
J10
1 2 3 4 5 6
J5
1 2 3 4 5 6
J4
1 2 3 4 5 6
Sout
h W
ales
. NP2
6 5P
S. U
KPo
rtske
wet
t, C
aldi
cot
Lodg
e W
ay
ultra
tec
2003
Cop
yrig
htD
rg N
o:
Dat
eEC
NIs
sue
Dra
wn:
Ultr
asou
nd T
echn
olog
ies
Ltd
Dat
e:of
Shee
tN
ame:
FT31
0M~1
35
BAS1
6D
17
23
BAS1
6D
18
23
R87
10K
R10
610
KR
104
10K
R10
110
K
R85
10K
R86
10K
R83
10K
R11
410
KR
116
10K
R11
510
K
R9910K
R9710K
R110100R
R108100R
C98
100n
F
C93
100n
F
C97
100n
F
C94
100n
F
Key[
1]
Key[
2]
Key[
3]Vc
c
Key[
4]
Key[
5]
KeyO
ut
Sign
1
Sign
2
Mot
orPh
ase1
Zero
Mot
orPh
ase2
Zero
DA1
DA2
Seria
l_O
ut
Seria
l_C
lock
prin
thea
dstro
be1
prin
thea
dstro
be2
A[0:
16]
prin
thea
dstro
be3
prin
thea
dstro
be4
Key[
1]A[
0]D
[0:7
]
prin
thea
dlat
chKe
y[2]
A[1]
Key[
3]A[
2]
Key[
4]A[
3]pa
pero
utKe
y[5]
A[4]
Toco
_Adj
ust_
Clo
ck {0
5}A[
5]
Toco
_Adj
ust_
Dat
a {0
5}A[
6]Vc
cA[
0]D
[0]
CS_
Agc_
US2
{02}
A[7]
A[0]
D[0
]A[
1]D
[1]
A[8]
Dis
play
Dat
a[0]
Rx_
Dat
aA[
1]D
[1]
A[2]
D[2
]A[
9]D
ispl
ayD
ata[
1]Tx
_dat
aA[
2]D
[2]
A[3]
D[3
]A[
10]
Dis
play
Dat
a[2]
Rx_
Dat
a_Au
xA[
3]D
[3]
A[4]
D[4
]A[
11]
Dis
play
Dat
a[3]
Tx_D
ata_
Aux
A[4]
D[4
]A[
5]D
[5]
A[12
]D
ispl
ayD
ata[
4]Se
rial_
InA[
5]D
[5]
A[6]
D[6
]A[
13]
Dis
play
Dat
a[5]
Seria
l_O
utA[
6]D
[6]
A[7]
D[7
]A[
14]
Dis
play
Dat
a[6]
Seria
l_C
lock
A[7]
D[7
]A[
8]A[
15]
Dis
play
Dat
a[7]
RTC
_Sel
ect
A[8]
A[9]
A[16
]D
S1A[
9]A[
10]
INC
{01,
02,0
4}D
S2pr
inth
eads
trobe
1A[
10]
A[11
]
U/D
{01,
02,0
4}pr
inth
eads
trobe
2A[
11]
A[12
]C
S_Ag
c_U
S1 {0
1}pr
inth
eads
trobe
3A[
12]
A[13
]
CS_
Volu
me
{04}
Vcc
prin
thea
dstro
be4
A[13
]A[
14]
CS_
Toco
_Adj
ust {
05}
prin
thea
dlat
chA[
14]
Mot
orPh
ase1
Zero
Vcc
D[0
]M
otor
Phas
e2Ze
roVc
cD
[1]
Dis
play
Dat
a[0]
D[2
]
Dis
play
Dat
a[1]
D[3
]
Dis
play
Dat
a[2]
D[4
]
Dis
play
Dat
a[3]
D[5
]
Dis
play
Dat
a[4]
D[6
]
Dis
play
Dat
a[5]
D[7
]
Dis
play
Dat
a[6]
Dis
play
Dat
a[7]
RS2
32_T
xTx
_dat
aR
S232
_Rx
DS1
Tx_D
ata_
Aux
DS2
Rx_
Dat
a_Au
xPr
intV
olta
geO
n/O
ff {0
4}R
x_D
ata
KeyO
ut
aux_
sign
al_c
ontro
lde
bug
CSm
otor
driv
eVc
c
US2
_aud
io {0
4}EX
TAL
US1
_aud
io {0
4}
alar
m {0
4}de
bug
rese
tre
set
Vcc
Vcc
Vcc
US1
_con
nect
ed {0
1}EX
TAL
XTAL
US2
_con
nect
ed {0
2}XT
AL
Toco
_con
nect
ed {0
5}Vc
cVc
c
Aux_
conn
ectio
n
Feta
l_C
ompl
ex_F
H1
{01}
Feta
l_C
ompl
ex_F
H2
{02}
Vcc
pape
rout
Seria
l_In
Vcc
+12V
Seria
l_O
utVc
c
Seria
l_C
lock
Aux_
conn
ectio
n
aux_
sign
al_c
ontro
lR
TC_S
elec
tVc
c
neg1
2VVc
cD
[0]
D[1
]
D[2
]
Sign
1D
[3]
D[4
]
Sign
2D
[5]
Vcc
D[6
]
rese
tVc
cD
[7]
DA1
A[0]
DA2
Vcc
CSm
otor
driv
eVc
cVc
cre
set
CS_
Toco
_Adj
ust {
05}
Toco
_A/D
_CS
{05}
rese
t
NAS
Oct
04
eng
4
unco
nnec
ted
spar
e
Mot
or C
ontro
l
Mar
01
188
3
Deb
ug C
ontro
l
Aux
Sign
al C
onne
ctio
n
Aux
RS2
32
Even
t Mar
ker
June
00
2M
ay 0
0
RS2
32
Dig
ital P
rinte
r Con
trol a
nd u
ser i
nter
face
1
12
34
56
78
12
34
56
78
A B C D
A B C D
R10
022
RR
132
22R
FZT7
51Q
14 1B
2C
3E
R18
03k
3R
181
3k3
R12815K
D28
BZX8
4C6V
2
2 3
D27
BZX8
4C6V
2
2 3
+C
151
22uF
100
V+
C14
622
uF 1
00V
+C
143
22uF
100
V
C14
41u
FC
139
1uF
VR1 2K
LM33
8TU30 1Ad
j
3Vi
n2
Vout
DG
211
U25
2D
1
10D
37
D4
5G
nd
1IN
1
9IN
38
IN4
3S1
14S2
6S4
13V+
4V-
15D
2
16IN
2
11S3
12VL
L14100uH
1
2
L12100uH
1
2
LT10
76C
QU
29
1FB
3
GN
D
2VC
5VI
N4
VS
W
LT10
76C
QU
28
1FB
3
GN
D
2VC
5VI
N4
VS
WR1251k2
+C
126
1u0F
+C
148
330u
F
+C
142
330u
F
D23
10BQ
040
21
D22
10BQ0402 1
D21
10BQ040
21
D20
10BQ040
21
C13
410
00uF
+C136120uF
+C
131
120u
F
TDA2
614
U27
3
5
9IN
+
8IN
-2
7
6J1
21 2
R13
82K
7
R13
52K
7
R13
92K
7
+C
138
220u
F
+C
133
220u
F
Q13
RFD
8P05
SM
2D
1 G
3S
L1522uH
1
2
L10
22uH
1 2
C13
010
,000
uF
GBU
4A
D19
2 AC1
3 AC2
1D
C+
4D
C-
J13
1 2 3 4
J11
1 2 3 4
C15
010
0nF
C14
510
0nF
C13
210
0nF
C14
910
0nF
C127100nF
C13
510
0nF
C12
910
0nF
C12
810
0nF
C14
110
0nF
R14
32K
2
R14
02K
2
R13
01K
0
Sout
h W
ales
. NP2
6 5P
S. U
KPo
rtske
wet
t, C
aldi
cot
Lodg
e W
ay
ultra
tec
2003
Cop
yrig
htD
rg N
o:
Dat
eEC
NIs
sue
Dra
wn:
Ultr
asou
nd T
echn
olog
ies
Ltd
Dat
e:of
Shee
tN
ame:
FT31
0M~1
45
R13
722
K
R12
447
K
R14
44K
7
U24
X9C
103
7C
S
1IN
C
2U
/D
8VC
C3
VH
6VL
4
VSS
5V
W
R12
933
0K
LM32
4M
U32
12I+
13I-
4 11
14
LM32
4M
U26
10I+
9I-
4 11
8
C14
010
nF
C13
710
nF
R12610K
R14
210
K
R13110K
R12
310
K
+C
153
10uF
R13
310
R
R14
110
0R
R12
210
0R
R13
610
0KR
134
100K
BC848BQ12
2B
3C
1E
BC848BQ11
2B
3C
1E
+C
119
100u
F
C12
310
0nF
C12
210
0nF
C15
410
0nF
C12
010
0nF
C125100nF
C121100nF
R12727K
C1241nF
+24V
Vcc
Prin
tVol
tage
On/
Off
{03}
Vcc
+12V
neg1
2VVc
c
FH2_
Audi
o {0
2}FH
1_Au
dio
{01}
+12V
US2
_aud
io {0
3}
US1
_aud
io {0
3}
alar
m {0
3}
neg1
2VVc
c
+12V
INC
{01,
02,0
3}
U/D
{01,
02,0
3}
CS_
Volu
me
{03}
neg1
2V+1
2V
neg1
2V
Oct
04
eng
4M
ar 0
118
83
June
00
2M
ay 0
01
Pow
er s
uppl
ies
and
Audi
o ci
rcui
t
Spea
ker
AC P
ower
Inpu
t
A
NAS
12
34
56
78
12
34
56
78
A B C D
A B C D
MAX
1243
U11
3SH
DN
2AI
N6
DO
UT
5G
ND
4R
EF
1VD
D7
CS
8SC
LK
LM33
6MU10
2.5V
5R
4 VM
8VP
R170100K
MAX
549
U31
3C
S4
DIN
1G
ND
2O
UTA
6O
UTB
5SC
LK
7R
EF
8VD
D
D26
BZX8
4C5V
1
23
VR25K
R14
61M
R17
91K
0
R14
81K
0
R14
91K
0
R163220K
R177220K
J14
1 2 3 4 5 6
R16
547
0R
Sout
h W
ales
. NP2
6 5P
S. U
KPo
rtske
wet
t, C
aldi
cot
Lodg
e W
ay
ultra
tec
2003
Cop
yrig
htD
rg N
o:
Dat
eEC
NIs
sue
Dra
wn:
Ultr
asou
nd T
echn
olog
ies
Ltd
Dat
e:of
Shee
tN
ame:
FT31
0M~1
55
R169680K
BAS1
6D
24
23
BAS1
6D
25
23
R15722K
R15622K
R15947K
R1514K7
R1554K7
R1504K7
R1544K7
R175330K
R14
733
0K
R14
533
0K
LM32
4M
U32
5I+
6I-
4 11
7
LM32
4M
U32
10I+
9I-
4 11
8LM
324M
U32
3I+
2I-
4 11
1
LM32
4M
U26
5I+
6I-
4 11
7
LM32
4M
U26
3I+
2I-
4 11
1
LM32
4M
U26
12I+
13I-
4 11
14
R16810K
R17310K
R17
610
K
R16
710
KR
161
10K
R17410K
R17810K
R17
210
KR16010K
R16210K
R15
310
K
R15810R
R152100R
R171100K
+C
156
100u
F
C90
100n
F
C91
100n
F
C15
710
0nF
C15
910
0nF
C15
810
0nF
C16
410
0nF
C163100nF
C161100nF
C15
510
0nF
C16
01u
F
C16
21u
F
Vcc
+12V
neg1
2VVc
c
Toco
_Adj
ust_
Clo
ck {0
3}
Toco
_A/D
_CS
{03}
A/D
Off
Toco
_Adj
ust_
Dat
a {0
3}+1
2V
+12V
+12V
neg1
2VTo
co_V
Ref
neg1
2V
neg1
2Vto
co_c
ompl
ex
+12V
neg1
2VVc
cVc
cTo
co_V
Ref
CS_
Toco
_Adj
ust {
03}
+12V
Toco
_Adj
ust_
Dat
a {0
3}
Toco
_Adj
ust_
Clo
ck {0
3}
neg1
2V
Vcc
+12V
Toco
_con
nect
ed {0
3}
neg1
2V
Mar
01
188
3
Adc
Auto
Zer
o C
ontro
l
Toco
Con
nect
or-Exe
+Exe
-Ret
urn
+Ret
urn
June
00
2M
ay 0
01
PFM
1R T
oco
Circ
uit
RN
12
34
56
78
12
34
56
78
A B C D
A B C D
R11
180R
R10
27K
J41234567
J11P1
10P1
011
P11
12P1
213
P13
14P1
415
P15
16P1
6
2P2
3P3
4P4
5P5
6P6
7P7
8P8
9P9
J3
1 10 11 12 13 142 3 4 5 6 7 8 9
VR1
250K
J81 P1
10P1
011
P11
12P1
213
P13
14P1
415
P15
16P1
617
P17
18P1
819
P19
2P2
20P2
0
3 P34
P45 P5
6P6
7 P78
P89 P9J71 P1
10P1
011
P11
12P1
213
P13
14P1
415
P15
16P1
617
P17
18P1
819
P19
2P2
20P2
0
3 P34
P45 P5
6P6
7 P78
P89 P9
R12 1R
R13
1RR
15 1RR
161R
J2
1 2 3 4 5 6 7 8
R1812K
C10
4700
pf
NJM
3777
U2
9C1
16C2
11D
is1
14D
is2
3E1
22E2
6
Gnd
1
7
Gnd
2
18
Gnd
3
19
Gnd
4
4M
A1
21M
A2
2M
B1
23M
B2
10Ph
ase1
15Ph
ase2
12RC13 Vc
c
5
VMM
1
20
VMM
2
8VR
117
VR2
J61 2
+C
210
0uF
ACT5
41
U1
1G
119
G2
2A1
3A2
4A3
5A4
6A5
7A6
8A7
9A8
18Y1
17Y2
16Y3
15Y4
14Y5
13Y6
12Y7
11Y8
+C
122
0uF
+C
722
0uF
J5
1 2 3 4
C6
100n
FC5
100n
FC
410
0nF
C3
100n
F
R141K0
R171K0
R1470R
Sout
h W
ales
. NP2
6 5P
S. U
KPo
rtske
wet
t, C
aldi
cot
Lodg
e W
ay
ultra
tec
2003
Cop
yrig
htD
rg N
o:
Dat
eEC
NIs
sue
Dra
wn:
Ultr
asou
nd T
echn
olog
ies
Ltd
Dat
e:of
Shee
tN
ame:
FT31
0F~1
11
C8
10nF
C9
10nF
R9
10K
R8
10K
R7
10K
R6
10K
R5
10K
R4
10K
R3
10K
R2
10K
R19
100R
R20
100R
R21
100R
R22
100R
C11
100n
FC
1210
0nF
Vcc
Vcc
+24V
Key[
1]Ke
y[1]
Key[
2]Ke
y[2]
Key[
3]Ke
y[3]
Key[
4]Ke
y[4]
Key[
5]Ke
y[5]
KeyO
utKe
yOut
Vcc
Sign
1
Sign
2
Mot
orPh
ase1
Zero
Mot
orPh
ase2
Zero
Vcc
DA1
DA2
Vcc
Vcc
Seria
l_O
ut+2
4VSe
rial_
Clo
ck
prin
thea
dstro
be1
DS1
prin
thea
dstro
be2
prin
thea
dstro
be3
DS2
prin
thea
dstro
be4
Dis
play
Dat
a[0]
prin
thea
dlat
chSi
gn1
Dis
play
Dat
a[1]
Sign
2D
ispl
ayD
ata[
2]M
otor
Phas
e1Ze
ropa
pero
utD
ispl
ayD
ata[
3]M
otor
Phas
e2Ze
roD
ispl
ayD
ata[
4]D
A1D
ispl
ayD
ata[
5]D
A2D
ispl
ayD
ata[
6]
Dis
play
Dat
a[7]
Vcc
pape
rout
Vcc
+24V
Vcc
Dis
play
Dat
a[0]
Dis
play
Dat
a[1]
Vcc
Dis
play
Dat
a[2]
Dis
play
Dat
a[3]
Dis
play
Dat
a[4]
Dis
play
Dat
a[5]
Vcc
Dis
play
Dat
a[6]
Dis
play
Dat
a[7]
DS1
DS2
Seria
l_O
ut
Seria
l_C
lock
prin
thea
dstro
be1
prin
thea
dstro
be2
prin
thea
dstro
be3
prin
thea
dstro
be4
prin
thea
dlat
ch
NAS
Oct
04
eng
1
Feta
track
310
reco
rder
inte
rface
boa
rd
Mot
or D
rive
Out
put
Prin
thea
d in
terfa
ce
Fron
t Pan
el K
ey P
ad In
terfa
ce
LCD
con
trast
con
trol
Fron
t Pan
el D
ispl
ay In
terfa
ce
Pow
er c
onne
ctio
nLC
D B
ackl
ight