Acer AL1722 Service Guide

2

Service Guide Version and Revision

No. Version Release Date Revision

1 1.0 Jan.12, 2005 Original release

3

Copyright

Copyright 2005 LiteOn Technology Corp.

All rights reserved. This manual may not, in whole or in part, be copied, photocopied, reproduced, translated, or converted to any electronic machine readable form without prior written permission of LiteOn Technology Corp. ACER AL1722 Service Manual.

Printed in Taiwan.

Disclaimer

The information in this guide is subject to change without notice. Acer Incorporated makes no

representations or warranties, either expressed or implied, with respect to the contents hereof

and specifically disclaims any warranties of merchantability or fitness for any particular

purpose. Any Acer Incorporated software described in this manual is sold or licensed "as is".

Should the programs prove defective following their purchase, the buyer (and not Acer

Incorporated, its distributor, or its dealer) assumes the entire cost of all necessary servicing,

repair, and any incidental or consequential damages resulting from any defect in the software. Acer is a registered trademark of Acer Corporation. Intel is a registered trademark of Intel Corporation. Pentium and Pentium II/III are trademarks of Intel Corporation. Other brand and product names are trademarks and/or registered trademarks of their respective holders.

Trademarks LiteOn is a registered trademark of LiteOn Technology Corp. All other trademarks are property of their respective owners.

4

Conventions The following conventions are used in this manual:

Screen messages Denotes actual messages that appear on screen. NOTE Gives bits and pieces of additional information related to the

current topic. WARNING Alerts you to any damage that might result from doing or not

doing specific actions. CAUTION Gives precautionary measures to avoid possible hardware or

software problems. IMPORTANT Reminds you to do specific actions relevant to the

accomplishment of procedures.

Preface Before using this information and the product it supports, please read the following general information. 1. This Service Guide provides you with all technical information relating to the BASIC

CONFIGURATION decided for Acer's "global" product offering. To better fit local market requirements and enhance product competitiveness, your regional office MAY have decided to extend the functionality of a machine (e.g. add-on card, modem, or extra memory capability). These LOCALIZED FEATURES will NOT be covered in this generic service guide. In such cases, please contact your regional offices or the responsible personnel/channel to provide you with further technical details.

2. Please note WHEN ORDERING FRU PARTS, that you should check the most up-to-date

information available on your regional web or channel. If, for whatever reason, a part number change is made, it will not be noted in the printed Service Guide. For ACER-AUTHORIZED SERVICE PROVIDERS, your Acer office may have a DIFFERENT part number code to those given in the FRU list of this printed Service Guide. You MUST use the list provided by your regional Acer office to order FRU parts for repair and service of customer machines.

5

Warning: (For FCC Certified Models) Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy, and if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: 1. Reorient or relocate the receiving antenna. 2. Increase the separation between the equipment and receiver. 3. Connect the equipment into an outlet on a circuit different from that to which the receiver is

connected. 4. Consult the dealer or an experienced radio/TV technician for help.

Notice:

1. The changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.

2. Shielded interface cables and AC power cord, if any, must be used in order to comply with the emission limits.

3. The manufacturer is not responsible for any radio or TV interference caused by unauthorized modification to this equipment. It is the responsibility of the user to correct such interference.

As an ENERGY STAR® Partner our company has determined that this product meets the ENERGY STAR® guidelines for energy efficiency.

Warning:

To prevent fire or shock hazard, do not expose the monitor to rain or moisture. Dangerously high voltages are present inside the monitor. Do not open the cabinet. Refer servicing to qualified personnel only.

6

Precautions

Do not use the monitor near water, e.g. near a bathtub, washbowl, kitchen sink, laundry tub, swimming pool or in a wet basement.

Do not place the monitor on an unstable trolley, stand, or table. If the monitor falls, it can injure a person and cause serious damage to the appliance. Use only a trolley or stand recommended by the manufacturer or sold with the monitor. If you mount the monitor on a wall or shelf, use a mounting kit approved by the manufacturer and follow the kit instructions.

Slots and openings in the back and bottom of the cabinet are provided for ventilation. To ensure reliable operation of the monitor and to protect it from overheating, be sure these openings are not blocked or covered. Do not place the monitor on a bed, sofa, rug, or similar surface. Do not place the monitor near or over a radiator or heat register. Do not place the monitor in a bookcase or cabinet unless proper ventilation is provided.

The monitor should be operated only from the type of power source indicated on the label. If you are not sure of the type of power supplied to your home, consult your dealer or local power company.

The monitor is equipped with a three-pronged grounded plug, a plug with a third (grounding) pin. This plug will fit only into a grounded power outlet as a safety feature. If your outlet does not accommodate the three-wire plug, have an electrician install the correct outlet, or use an adapter to ground the appliance safely. Do not defeat the safety purpose of the grounded plug.

Unplug the unit during a lightning storm or when it will not be used for long periods of time. This will protect the monitor from damage due to power surges.

Do not overload power strips and extension cords. Overloading can result in fire or electric shock.

Never push any object into the slot on the monitor cabinet. It could short circuit parts causing a fire or electric shock. Never spill liquids on the monitor.

Do not attempt to service the monitor yourself; opening or removing covers can expose you to dangerous voltages and other hazards. Please refer all servicing to qualified service personnel

To ensure satisfactory operation, use the monitor only with UL listed computers which have appropriate configured receptacles marked between 100 - 240V AC, Min. 3.5A.

The wall socket shall be installed near the equipment and shall be easily accessible. For use only with the attached power adapter (output 12V DC) which have UL, CSA listed license

7

Special Notes On LCD Monitors The following symptoms are normal with LCD monitor and do not indicate a problem.

Notes

Due to the nature of the fluorescent light, the screen may flicker during initial use. Turn off the Power Switch and then turn it on again to make sure the flicker disappears.

You may find slightly uneven brightness on the screen depending on the desktop pattern you use.

The LCD screen has effective pixels of 99.99% or more. It may include blemishes of 0.01% or less such as a missing pixel or a pixel lit all of the time.

Due to the nature of the LCD screen, an afterimage of the previous screen may remain after switching the image, when the same image is displayed for hours. In this case, the screen is recovered slowly by changing the image or turning off the Power Switch for hours.

8

Chapter 1 Monitor Features ……………………………………… 8

Induction ……………………………………… 9 Electrical Requirements ……………………………………… 10 LCD Monitor General Specification ……………………………………… 11 LCD Panel Specification ……………………………………… 12 Support Timing ……………………………………… 13 Block Diagram ……………………………………… 15 Main Board Diagram ……………………………………… 16 Software Flow chart ……………………………………… 17 Main Board Layout ……………………………………… 18 Front Bezel ……………………………………… 22 Rear Bezel ……………………………………… 23Chapter 2 Operating Instructions

……………………………………… 24

External Controls ……………………………………… 24 Front Panel Controls ……………………………………… 25 Adjusting the picture ……………………………………… 26 Hot-Key Menu ……………………………………… 30 OSD Message ……………………………………… 30 LOGO ……………………………………… 31Chapter 3 Machine Disassembly

……………………………………… 32

Chapter 4 Troubleshooting

……………………………………… 39

Chapter 5 Connector Information

……………………………………… 45

Chapter 6 FRU (Field Replacement Unit) List

……………………………………… 46

Exploded Diagram ……………………………………… 47Chapter 7 Schematic Diagram

……………………………………… 52

Analog and Digital Input ……………………………………… 52 TSU56AK ……………………………………… 53 LVDS ……………………………………… 54 DC Power ……………………………………… 55 MCU/Key Board Connector ……………………………………… 56 Audio ……………………………………… 57 Inverter Board ……………………………………… 58

Table Of Contents

9

Monitor Features

Introduction

Scope This specification defines the requirements for the 17” MICRO-PROCESSOR based Multi-mode supported high resolution color LCD monitor. This monitor can be directly connected to general 15 pin D-sub VGA connector and 24 pin DVI connector. It also supports VESA DPMS power management and plug & play function. There is a build-in stereo audio amplifier with OSD control to drive a pair of speakers.

Description The LCD monitor is designed with the latest LCD technology to provide a performance oriented product with no radiation. This will alleviate the growing health concerns. It is also a space saving design, allowing more desktop space, and comparing to the traditional CRT monitor, it consumes less power and gets less weight in addition MTBF target is 50k hours or more.

Chart of AL1722

Panel 17" Samsung LTM170EU-21

D-SUB Signal Interface

DVI

Sync Type Separate / Compatible

Color Temp User Adjust Support

DDC DDC2B

Speaker 1.5W + 1.5W (Rated power)

Headphone Jack No

Microphone Jack No

USB Hub Not support

Tilt / Swivel Yes / No

Chapter 1

10

Electrical Requirements Standard Test Conditions All tests shall be performed under the following conditions, unless otherwise specified. Ambient light : 225 lux Viewing distance : 40 cm in front of LCD panel Warm up time All specifications : 30 minutes Fully functional : 5 seconds Measuring equipment : Chroma 7120 signal generator or equivalent, directly Connected to the monitor under test. Minolta CA100 photometer, or equivalent Control settings User brightness control : Maximum (unless otherwise specified) User contrast control : Typical (unless otherwise specified) User red/white balance, Green/white balance and Blue/white balance control : In the center (unless otherwise specified) Power input : 90Vac or 240Vac Ambient temperature : 20+5℃ Analog input mode : 1280 x1024 @60 Hz Measurement systems The units of measure stated in this document are listed below: 1 gamma = 1 nano tesla 1 tesla = 10,000 gauss cm = in x 2.54 lb = kg x 2.2 degrees F = [°C x 1.8] + 32 degrees C = [°F - 32]/1.8 u' = 4x/(-2x + 12y + 3) v' = 9y/(-2x + 12y + 3) x = (27u'/4)/[(9u'/2) - 12v' + 9] y = (3v')/[(9u'/2) - 12v' + 9] nits = cd/(m2) = Ft-L x 3.426 lux = foot-candle x 10.76

11

LCD Monitor General Specification

Panel type : 17 “ active matrix color TFT LCD

SAMSUNG LTM170EU-21

Display size : 337.92mm (H) × 270.336mm(V) Display mode : VGA 640 × 480 (60/75 Hz)

SVGA 800 × 600 (60/75 Hz)

XGA 1024 × 768 (60/70/75 Hz)

SXGA 1280 ×1024 (60//75 Hz) Pixel pitch : 0.264mm(H) × 0.264mm(V) Display dot : 1280 x (RGB) ×1024 Pixel clock : 135.0MHz

Contrast ratio : 700:1

Brightness : 300 cd/m2

Response time (Tr/Tf) : 8ms (Tr=1.7ms, Tf=6.3ms)

Display color : 16.2M(RGB 8 bit Data)

Viewing angle : H:150 / V:135 (typ)

Pc interface : RGB Analog Interface

Digital interface

Signal connector : D-Sub 15pin

DVI-D 24pin

Interface frequency : Horizontal Frequency 30KHz ----83KHz

Vertical Frequency 55Hz ------75Hz

Plug & play : VESA DDC2B

Power Input voltage : 50/60HZ, 100 VAC to 240VAC

Total output power : 45 Watt max.

12

LCD Panel Specification LCD Panel Model (SAMSUNG LTM170EU-21) Display Type active matrix color TFT LCD Resolution 1280x1024 pixels Display Dot 1280x (RGB) x 1024 Display Area 337.92mm(H) x 27.336mm(V) Pixel Pitch 0.294mm(H) x 0.294mm(V) Display Color 16.2M (true) Lamp Frequency 80kHz (Max) Lamp Current 7.0 mArms (Max) Weight 1900g (Max) Optical Specifications

IL = 6.5mArms Ta = 25 ± 2°C VDD = 5V FV = 60Hz FDCLK = 54MHz

ITEM Symbol Condition MIN. TYP. MAX. UNIT Contrast Ratio

(Center of screen) C/R - 700 -

Rising Tr - 1.7 - Response Time Falling TF - 6.3 -

msec

Luminance of white (Center of screen) YL - 300 - cd/m2

RX 0.650 Red

RY 0.330 GX 0.300

GreenGY 0.600 BX 0.150

Blue BY 0.080 WX 0.313

Color Chromaticity (CIE 1931)

White WY

θ=0, φ=0

Normal Viewing Angle

-

0.329

-

θL - 75 -

Hori. θR - 75 - φH - 75 -

Viewing Angle

Ver. φL

CR≥10

- 80 -

Degrees

Brightness Uniformity (9 Points) BUNI - - 25 %

13

Supported Timing

Modes Resolution Horizontal Frequency

Vertical Frequency

640x480 31.469 59.940 VGA 640x480 37.500 75.000 800x600 37.879 60.317 SVGA 800x600 46.875 75.000 1024x768 48.363 60.004 1024x768 56.476 70.069 XGA 1024x768 60.023 75.029

1280x1024 64.000 60.000

VESA

SXGA 1280x1024 80.000 75.000

IBM DOS 720x400 31.469 70.087 1024x768 48.780 60.001 MAC XGA 1024x768 60.241 74.927

. Support Modes There will be 12 total support modes to accommodate the above mode and other video modes within the frequency range of the monitor.

80Hz refresh rate Support Monitor should display 80Hz refresh rate mode as emergency mode. Monitor should display “ Out of Range” warning menu at this mode.

Video Input Connector PIN NO. DESCRIPTION PI N NO. DESCRIPTION

1. Red 9. +5V 2. Green 10. Logic Ground 3. Blue 11. Monitor Ground 4. Monitor Ground 12. DDC-Serial Data 5. DDC-Return 13. H-Sync 6. R-Ground 14. V-Sync 7. G-Ground 15. DDC-Serial Clock 8. B-Ground

VGA Connector layout

1 56 10

11 15

14

PIN NO. DESCRIPTION PIN NO. DESCRIPTION

1. TMDS Data 2- 13. TMDS Data 3- 2. TMDS Data 2+ 14. +5V Power 3. TMDS Data 2/4 Shied 15. Ground (for +5V) 4. TMDS Data 4- 16. Hot Plug Detect 5. TMDS Data 4+ 17. TMDS Data 0+ 6. DDC Clock 18. TMDS Data 0- 7. DDC Data 19. TMDS Data 0/5 Shield 8. Analog Vertical Sync 20. TMDS Data 5- 9. TMDS Data 1- 21. TMDS Data 5-

10. TMDS Data 1+ 22. TMDS Clock Shield 11. TMDS Data 1/3 Shield 23. TMDS Clock+ 12. TMDS Data 3- 24. TMDS Clock-

DVI Connector layout

15

Monitor Block Diagram

The LCD MONITOR will contain a main board, an inverter board, adapter, keypad board and audio board which house the flat panel control logic, brightness control logic and DDC. The Inverter board will drive the backlight of panel. The adapter will provide the 12V DC-power to inverter/power board and main board.

Video signal, DDC

Inverter board

Flat Panel and CCFL backlight

Main Board

Keyboard

RS232 Connector For white balance adjustment in factory mode

HOST Computer

CCFL Drive.

AC-IN 100V-240V

Audio boardAdapter

16

Main Board Diagram

LCD Interface

Scaler TSU56AK (Include: ADC, OSD etc)

MCU

OSD Control Interface (Keypad)

DVI Connector

D-SUB Connector

EEPROM24C02

EEPROM24C02

Crystal 14.318MHZ

EEPROM 24C16

17

Software Flow Chart

1) MCU initialize. 2) Is the eeprom blank? 3) Program the eeprom by default values. 4) Get the PWM value of brightness from

eeprom. Check the pin PANEL1 and PANEL2 to tell which panel to get with it.

5) Is the power key pressed? 6) Clear all global flags. 7) Are the AUTO and SELECT keys pressed? 8) Enter factory mode. 9) Saving the power key status into eeprom.

Turn on the LED and set it to green color. Scalar initializes.

10) In standby mode? 11) Update the lifetime of back light. 12) Check the analog and digital port, are there

any signals coming? 13) Does the scalar send out a interrupt request? 14) Wake up the scalar. 15) Are there any signals coming from analog or

digital port? 16) Display " No Input Signal " message. And go

into standby mode after the message disappear. 17) Program the scalar to be able to show the coming

mode. 18) Process the OSD display. 19) Read the keyboard. Is the power key pressed?

1

2

N

Y

5

Y

N

10

Y

N

12

Y

N

7

Y

N

6

4

3

8

9

14

11

13

Y

N

15

Y

N 16

17

19

Y

N18

18

Main Board Layout

Label Part Number Description U301 56L1133 34 M24C02-WMN6T SMT U302 56L1133 34 M24C02-WMN6T SMT U601 56L1125137SZ6 W78E65P-40 X401 93L 22 53 CRYSTAL 14.318MHz U401 56L 562 82 SCALER IC TSU16AK Y601 93L 22 55 J 20MHZ U201 56G 563 38 RT9164A18PG S0T-223 U202 56L 563 7 AIC1084-33CM U603 56L 643 5A MAX810STR SOT-23 U602 56L1133 56 M24C16-WMN6T/W SO-8

CN301 88L 35315F HS D-USB 15PIN CN302 88L 35424F HS DVI 24PIN CN503 33G802724B H WAFER CN201 33L800912L H HEADER 2*6P CN602 33L8027 14 H WAFER 14P 2.0MM U701 56L 616 1 TDA7496L BY ST

CN701 88L 30210K E PHONE JACK

19

The step between front bezel and back cover shall be within specification. Top and Bottom Left and Right Back cover & Bezel concavity Back cover & Bezel concavity

0.8mm ≤ A ≤ 1.3 mm 0.8mm ≤ A ≤ 1.3 mm

Back Cover & Hinge Cover concavity

0mm ≤ B ≤ 0.5mm

B

Base & Neck concavity

0mm ≤ C ≤ 0.6mm

20

Top and Bottom Left and Right Back cover & Bezel step Back cover & Bezel step

0mm ≤ D ≤ 0.8 mm 0mm≤ D ≤ 0.8 mm

LCD Horizontally The angle between front bezel and LCD unit in bottom side should not large than 1.0mm.

21

The distance of the LCD display unit from left side to right should not large than 4.0mm.

Tilt Base Rotation

Tilt up 15 ± 2°/ down 5 ±2°

Plastic Material For TCO99 Front Bezel ABS 94HB Back Cover ABS 94HB The Others ABS 94HB For MPRII Front Bezel ABS 94HB Back Cover ABS 94HB The Others ABS 94HB GAP Spec. Gap between panel with bezel is 0 mm < gap < 1.2 mm

22

Front Bezel

Item Description 1 >/Volume 2 </Volume 3 4 5

23

Rear Bezel

Item Description 1 D-SUB CABLE 2 DC-Jack Power Cable 3 AC POWER CORD External Adapter

5 DVI CABLE 4 AUDIO CABLE

24

Operating Instructions Press the power button to turn the monitor on or off. The other control buttons are located at front panel of the monitor. By changing these settings, the picture can be adjusted to your personal preferences. • The power cord should be connected. • Connect the video cable from the monitor to the video card. • Press the power button to turn on the monitor position. The power indicator will light up.

External Controls

Item Description 1 >/Volume 2 </Volume 3 4 5

Chapter 2

25

Front Panel Control

• Power Button: Press this button to turn the monitor ON or OFF, And display the monitor’s state.

• Menu / Enter : Activate OSD menu when OSD is OFF or activate/de-activate adjustment function when OSD is ON or Exit OSD menu when in Volume Adjust OSD status.

• </Volume: Activates the volume control when the OSD is OFF or navigate through adjustment icons when OSD is ON or adjust a function when function is activated.

• >/Volume:

Activates the volume control when the OSD is OFF or navigate through adjustment icons when OSD is ON or adjust a function when function is activated.

• Auto Adjust button / Exit:

1. When OSD menu is in active status, this button will act as EXIT-KEY (EXIT OSD menu). 2. When OSD menu is in off status, press this button for 2 seconds to activate the Auto

Adjustment function. The Auto Adjustment function is used to set the HPos, VPos, Clock and Focus.

• Power Indicator: Blue — Power On mode. Orange — Power saving Light blue — Off mode

NOTES Notes • Do not install the monitor in a location near heat sources such as radiators or air ducts, or

in a place subject to direct sunlight, or excessive dust or mechanical vibration or shock. • Save the original shipping carton and packing materials, as they will come in handy if you

ever have to ship your monitor. • For maximum protection, repackage your monitor as it was originally packed at the factory. • To keep the monitor looking new, periodically clean it with a soft cloth. Stubborn stains may

be removed with a cloth lightly dampened with a mild detergent solution. Never use strong solvents such as thinner, benzene, or abrasive cleaners, since these will damage the cabinet. As a safety precaution, always unplug the monitor before cleaning it.

26

Adjusting the Picture

a. How to Adjust a Setting 1. Press the MENU-button to activate the OSD window. 2. Press <or >to select the desired function. 3. Press the MENU-button to select the function that you want to adjust. 4. Press < or >to change the settings of the current function. 5. To exit and save, select the exit function. If you want to adjust any other function, repeat

steps 2-4.

I. Analog-Only Model

27

II. Dual-Input Model, Analog Signal Input

III. Dual-Input Model, Digital Signal Input

28

b. The Description For Control Function

Main Menu Icon

Sub Menu Item

Sub Menu Icon

Description

Contrast

Contrast from Digital-register.

Brightness

Backlight Adjustment

Focus

Adjust Picture Phase to reduce Horizontal-Line noise

Clock

Adjust picture Clock to reduce Vertical-Line noise.

H. Position

Adjust the horizontal position of the picture.

V. Position

Adjust the vertical position of the picture.

Warm N/A Recall Warm Color Temperature from EEPROM.Cool N/A Recall Cool Color Temperature from EEPROM.

User / Red

Red Gain from Digital-register.

User/ Green

Green Gain Digital-register.

User / Blue

Blue Gain from Digital-register.

English N/A Set OSD display language to English. 繁體中文 N/A Set OSD display language to Traditional Chinese.Deutsch N/A Set OSD display language to German. Français N/A Set OSD display language to French. Español N/A Set OSD display language to Spain. Italiano N/A Set OSD display language to Italian. 简体中文 N/A Set OSD display language to Simplified Chinese.

日本語 N/A Set OSD display language to Japanese.

H. Position

Adjust the horizontal position of the OSD.

V. Position

Adjust the vertical position of the OSD.

OSD Timeout

Adjust the OSD timeout.

29

Main Menu Icon

Sub Menu Item

Sub Menu Icon

Description

(Analog-Only

Model)

Auto Config N/A Auto Adjust the H/V Position, Focus and Clock of

picture.

Analog N/A Select input signal from analog (D-Sub)

(Dual-Input

Model) Digital N/A Select input signal from digital (DVI)

Information N/A Show the resolution, H/V frequency and input port

of current iput timing.

Reset N/A Clear each old status of Auto-configuration and set

the color temperature to Cool.

Exit N/A Exit OSD

30

Hot-Key Menu a. Outline

b. The Description For Hot-Key Function

Item Operation Icon Description

Volume When the OSD is closed, press

Left or Right button will be Volume Hot-Key Function

Volume of Audio adjustment. The Audio will be Mute when volume=0

OSD Message

a. Outline

b. The Description For OSD Message

Item Description

Auto Config Please Wait

1.) When Analog signal input, if User Press Hot-Key “Auto”, will show this message, and the monitor do the auto config function.

2.) When Digital signal input, without this OSD Message. Input Not Supported

When the Hsync Frequency, Vsync Frequency or Resolution is out of the monitor support range, will show this message. This message will be flying.

Cable Not Connected

1.) Analog-Only Model: When the video cable is not connected, will show this message. This message will be flying.

2.) Dual-Input Model: Dual-Input Model without this OSD Message.

No Signal

1.) Analog-Only Model: When the video cable is connected, but there is no active signal input, will show this message, then enter power saving.

2.) Dual-Input Model: When the video cable is not connected, or the video cable is connected but there is no active signal input, will show this message, then enter power saving.

31

Logo

When the monitor is power on, the LOGO will be showed in the center, and disappear slowly.

How To Optimize The DOS-Mode Plug And Play Plug & Play DDC1/2B Feature This monitor is equipped with VESA DDC1/2B capabilities according to the VESA DDC STANDARD. It allows the monitor to inform the host system of its identity and, depending on the level of DDC used, communicate additional information about its display capabilities. The communication channel is defined in two levels, DDC1 and DDC2B. The DDC1 is a unidirectional data channel from the display to the host that continuously transmits EDID information. The DDC2B is a bidirectional data channel based on the I²C protocol. The host can request EDID information over the DDC2B channel. This monitor will appear to be non-functional if there is no video input signal. In order for this monitor to operate properly, there must be a video input signal. This monitor meets the Green monitor standards as set by the Video Electronics Standards Association (VESA) and/or the United States Environmental Protection Agency (EPA) and The Swedish Confederation Employees (NUTEK). This feature is designed to conserve electrical energy by reducing power consumption when there is no video-input signal present. When there is no video input signal this monitor, following a time-out period, will automatically switch to an OFF mode. This reduces the monitor's internal power supply consumption. After the video input signal is restored, full power is restored and the display is automatically redrawn. The appearance is similar to a "Screen Saver" feature except the display is completely off. The display is restored by pressing a key on the keyboard or clicking the mouse.

Using The Right Power Cord The accessory power cord for the Northern American region is the wallet plug with NEMA 5-15 style and is UL listed and CSA labeled. The voltage rating for the power cord shall be 125 volts AC. Supplied with units intended for connection to power outlet of personal computer: Please use a cord set consisting of a minimum No. 18 AWG, type SJT or SVT three conductors flexible cord. One end terminates with a grounding type attachment plug, rated 10A, 250V, CEE-22 male configuration. The other end terminates with a molded-on type connector body, rated 10A, 250V, having standard CEE-22 female configuration. Please note that power supply cord needs to use VDE 0602, 0625, 0821 approval power cord in European counties.

32

Machine Disassembly This chapter contains step-by-step procedures on how to assemble the monitor for maintenance. Disassembly Procedure Disassemble the base 1. Remove hinge cover. (Fig 1) 2. Remove four screws to release stand base. (Fig 2)

Chapter 3

Fig 1

Fig2

33

Disassemble the front cover 1. Remove seven screws to release front bezel. (Fig 3) 2. Remove connector wire with keyboard and main board. (Fig 4) 3. Remove two screws to release keyboard. (Fig 5) 4. Remove connector wire with keyboard and speakers. (Fig 6) 6. Remove two screws to release speakers (right and left). (Fig 7)

Fig 3

Fig 4

34

Fig 5

Fig 6

Fig 7

35

Disassemble the rear bezel

Disassemble the shield 1. Remove two screws to release the shield. (Fig 8) 2. Remove the shield as arrow direction.

Fig8

36

Disassemble the main board 1. Remove four screws to release main board. (Fig 9) 2. Remove connector wires with main board and Inverter board, main board and keyboard, main board and panel. (Fig 10)

Fig 9

Fig10

37

Disassemble the Inverter board 1.Remove four screws to release Inverter board. (Fig 11) 2. Remove connector wires with Inverter board and panel. (Fig 12)

Fig11

Fig12

38

Disassemble the panel 1. Remove four screws (right and left) to release metal frame. (Fig 13)

Fig13

39

Troubleshooting This chapter provides troubleshooting information for the AL1722:

1. No power

Chapter 4

No power

Press power key and lookif the picture is normal

Measure 12V input voltage

Check the adapter section

Y601 oscillate waveformis normal

Measure U101 PIN2=5V?

OK

OK

NG

NG

NGReplace U101

Replace U601

Replace Y601 OK

Replace U401

NG

NG

NG

40

2. No picture (LED is orange)

No picture

OK

OK

NG

NG

X401 oscillate waveformis normal

Replace X401

Check if the sync signal fromcomputer is output and videocable is connected normally

Input the sync signal of computer,or change the cable

Replace U401

NG

OK

Key is under control?Y601 oscillate waveformis normal

Replace U601

Replace Y601 OK

Replace U401

NG

NG

41

3. Panel Power Circuit

Replace PANEL

Measure Q204 baseis high level?

Check Q204 and Q203 arebroken or CN503 solder?

Check Correspondent component.

OK

OK

NG

NG

Y601 oscillate waveformis normal

Replace U601

Replace Y601 OK

Replace U401

NG

NG

42

4. Keypad Board

OK

OK

OSD is unstable or not working

Is Keypad board connecting normally

Is Button Switch normally

Is Keypad board normally

Check main board

Connect Keypad Board

Replace Button Switch

Replace Keypad Board

OK

NG

NG

NG

43

5. Inverter Board No Backlight

Check CON102 Pin5/6 =12V?

Change F902 Check D201/Q209/Q210/

D202/Q211/Q212

Check ON/OFF signal

Check Interface board

NGOK

Check U201 pin9=12V ?

NGOK

Change Q201 or Q202

Check the pin1 of U201 have saw tooth wave

NG

OK

Change U201

Check D201(-), D202(-) have the output of square wave at short time.

NGOK

Check Q205/Q207/Q203/D201 or Q206/Q208/Q204/D202

Check the resonant wave of pin2 & pin5 for PT201/ PT202

NG

Check the output of PT201/PT202

Check Q209/Q210/C213 or Q211/Q212/C214

Check connecter & lamp

OK NG

Change PT201/PT202

OK

NGOK

44

6.No Audio

Check power supply of U701 is 12V?

Check connecting is ok?

Reconnect

Mute and volume setting is ok?

Reset mute and volume

Check input signal of U701is ok?

Check correspondent component

Replace U701

Replace speaker

OK

OK

OK

NG

NG

NG

NG

NG

45

Connector Information The following figure shows the connector locations on the monitor board:

1 56 10

11 15

15 – Pin Color Display Signal Cable (D-sub)

PIN NO. DESCRIPTION PI N NO. DESCRIPTION 1. Red 9. +5V 2. Green 10. Logic Ground 3. Blue 11. Monitor Ground 4. Monitor Ground 12. DDC-Serial Data 5. DDC-Return 13. H-Sync 6. R-Ground 14. V-Sync 7. G-Ground 15. DDC-Serial Clock 8. B-Ground

24 – Pin Color Display Signal Cable (DVI)

PIN NO. DESCRIPTION PI N NO. DESCRIPTION

1. TMDS Data2- 13. TMDS Data3+ 2. TMDS Data2+ 14. +5V Power 3. TMDS Data 2/4 Shield 15. Ground 4. TMDS Data4- 16. Hot Plug Detect 5. TMDS Data4+ 17. TMDS Data0- 6. DDC Clock 18. TMDS Data0+ 7. DDC Data 19. TMDS Data 0/5 Shield8. Analogue Vertical Sync 20. TMDS Data5- 9. TMDS Data1- 21. TMDS Data5+

10. TMDS Data1+ 22. DDC Clock Shield 11. TMDS Data 1/3 Shield 23. DDC Clock+ 12. TMDS Data3- 24. DDC Clock-

Chapter 5

46

FRU (Field Replaceable Unit) List This chapter gives you the FRU (Field Replaceable Unit) listing in global configurations of AL1722.Refer to this chapter whenever ordering for parts to repair or for RMA (Return Merchandise Authorization). NOTE: Please note WHEN ORDERING FRU PARTS, that you should check the most

up-to-date information available on your regional web or channel (http://aicsl.acer.com.tw/spl/). For whatever reasons a part number change is made, it will not be noted in the printed Service Guide. For ACER AUTHORIZED SERVICE PROVIDERS, your Acer office may have a DIFFERENT part number code from those given in the FRU list of this printed Service Guide. You MUST use the local FRU list provided by your regional Acer office to order FRU parts for repair and service of customer machines.

NOTE: To scrap or to return the defective parts, you should follow the local government ordinance or regulations on how to dispose it properly, or follow the rules set by your regional Acer office on how to return it.

Chapter 6

47

Exploded Diagram (Model: AL1722)

48

Part List Item Picture Description Part No.

1

Hinge cover 33L4636 FV L/33L4637 FV L

2

Stand base 34L1189 FV B

3

Front cover 34L1187CGE B

4

Rear cover 34L1188AFV 2B

49

5 Shield 85L 641 1

6

Metal frame 15L5921 5

7 Panel 750LLS70U21

9 Power board IDPC 7425C3

50

10 Main board AIC780KS2AE

11 Key board AIK780KB4

12

Speakers 78L 332 1 L/78L 332 1 R

52

Schematic Diagram

Analog and Digital Input

FB304 150 OHM

FB301 0 1/16W　

VSYNC 4

R32

675

1/1

6W　

C308 0.047uF

R322 100 1/16W　

HSYNC 4

G- 4

R323

20K 1/16W　

C311

33pF

TXD 6

D309BAV99 NC

3

12

VCC5V

R325

75 1/16W　

VCC5V

C303

NC

R32

775

1/1

6W　

R307 68 1/16W　

R306 68 1/16W　

R319 100 1/16W　 D305BAT54C-GS08

3

12

R311 1K 1/16W　

D306BAV99 NC

3

12

D314MLL5232B 5.6V

C310 0.047uF

R303 33 1/16W　

C315

0.1uF

VCC5V

C313

0.1uF

D311BAV99 NC

3

12

GNDB 4

VCC5V

D302BAV99

3

12

CN301DB15

162738495

11

12

13

14

1510

CLK- 4

DDC_DAT6

R320 100 1/16W　

D318MLL5232B 5.6V

D307BAV99 NC

3

12

R31720K 1/16W　

R302 33 1/16W　

U301

AT24C02N-10SC

12345

678

A0A1A2

GNDSDASCLWPVCC

BIN 4

R- 4

D320MLL5232B 5.6V

R324

20K 1/16W　

C304 0.047uF

FB302 0 1/16W　

D312BAV99 NC

3

12

D315MLL5232B 5.6V

DAT_DDC

D303BAV99

3

12

C301

NC

R+ 4

C306 0.047uF

GIN 4

DVI5V

D316MLL5232B 5.6V

C307 0.001uF

DDC_CLK6

PC5V

R308

10K 1/16W　

FB303 0 1/16W　

R314

2.2K 1/16W　

C305 0.047uF

B- 4

HSI

G+ 4

DVI5V

SOG 4

CLK_DDC2

R301 33 1/16W　 RIN 4

C314

0.1uF

C302

NC

B+ 4

D304

BAT54C-GS08

3

12

D310BAV99 NC

3

12

R304 470 1/16W　

DAT_DDC2

R31820K 1/16W　

U302

AT24C02N-10SC

12345

678

A0A1A2

GNDSDASCLWPVCC

C312

220pF

D321MLL5232B 5.6V

R316 100 1/16W　

CN302

JACK

12

3

45

67

8

25

28

910

11

1213

14

15

16

26

29

1718

19

2021

22

2324

27

DAT2-DAT2+

2/4shield

DAT4-DAT4+

DDC SCLDDC SDA

VSYNC

R

HSYNC

DAT1-DAT1+

1/3shield

DAT3-DAT3+

+5V

SYNC GND

HPD

G

RGB GND

DAT0-DAT0+

0/5shield

DAT5-DAT5+

clk shield

clk+clk-

B

D319MLL5232B 5.6V

R313

2.2K 1/16W　

D301BAV99

3

12VCC5V

VSI

RXD 6

C309 0.047uF GNDG 4

R305 68 1/16W　

PC5V

D308BAV99 NC

3

12

CLK+ 4

D313BAV99 NC

3

12

D317MLL5232B 5.6V

ST_DET1 6

VGA_CON

ST_DET2 6

R315 100 1/16W　

R312 100 1/16W　

R309 100 1/16W　

R310 1K 1/16W　

R32110K 1/16W　

CLK_DDC

GNDR 4

Chapter 7

53

TSU56AK

VAA4

BB1 BB[0..1]

PA5

NC

PA9

RB1

INT6

B-3

AD26

VPLL

Q401PMBS3904

32

1

FB403

600 OHM

VDD

GB[0..5] 5

PB8

R-3

G-3

R401

VAA22

VSYNC3

PB1

PA2

GB1

BA0

C4060.1uF

C404 0.1uFGPO2

BB0

CLK-3

PA0

BA[0..5]

BIN3

HSYNC3

OSP 5

RB2

R401

NC

R406

10K 1/16W　

GPO3

FB405

600 OHM

PA7

C430

100pF

C4080.1uF

RB[0..5] 5

VDPLL

+C42710uF/16V

GNDG3

VAD

PB5

RB3

VCC3.3

VDDC4150.1uF

FB401

600 OHM

FB406

600 OHM

C4200.1uF

C4230.1uF

BA1

VCC3.32

R4081K 1/16W　

NC

ESP

+C42210uF/16V

C4090.1uF

GB2

PB[0..9]

+C41410uF/16V

AdjBACKLITE2

G+3

ESP 5

VPLL

GPO4

VAA1

PA4

BA4

GB[0..5]

C4210.1uF

GA0

C401

0.1uF

BA[0..5] 5

R407

10K 1/16W　

C4180.1uF

GIN3

R410 4.7K 1/16W　

FB402

600 OHM

R40910K 1/16W　

C4160.1uF

VDPLL

PB2

+C40510uF/16V

C4280.1uF

C4260.1uF

R403 390 1/16W　

+C41910uF/16V

+C42410uF/16V

4.7K

BA2

R404

10K 1/16W　

GA[0..3] 5

X401

14.318MHz

OSP

GB3

C4170.1uF

C403 22pF

C4110.1uF

SOG3

RB4

GPO[0..4] 5

Direct Bus

PB4

FB404

600 OHMR402

4.7K 1/16W　

VCC5V

BA3

GNDB3

PA8

PA[0..9]

C4291uF

VAA3

BA5

RIN3

PA6

GA1

C402 22pF

GA[0..3]

U401TSU56AK

63

60

6158

62

59

573738

52

66

67

69

7071

3272

7374

55 35 45

3

51 11 21 84 94 104

114

126

18 87 97 117

3956 36

2

54 42 10 20 85 95 115

127

19 86 96105

116

33

34

108109110111112113

9899100101

102103

888990919293

161722232425

8912131415

124125128145

118119120121

7576

8382818079

2928

536564 48

106107

122123

68

4041434446474950

30777831

6

RIN0

GIN0

SOGIN0BIN0

RIN0M

GIN0M

BIN0MHSYNC0VSYNC0

REXT

REFP

REFM

CSZ

SDASCL

HWRESETZINT

PWM0PWM1

AV

DD

AV

DD

_MP

LL

AV

DD

_DV

I

BYPASS

AV

DD

_DV

I

VD

DP

VD

DP

VD

DP

VD

DP

VD

DP

VD

DP

VD

DP

VD

DC

VD

DC

VD

DC

VD

DC

AV

SS

_DV

I

AV

SS

AV

SS

_MP

LL

AVSS_LPLL

AV

SS

_PLL

AV

SS

_DV

I

GN

DP

GN

DP

GN

DP

GN

DP

GN

DP

GN

DP

GN

DC

GN

DC

GN

DC

GN

DP

GN

DC

XIN

XOUT

LVA2P/RA1PLVA2M/RA1NLVA1P/RA2PLVA1MRA2NLVA0P/RA3PLVA0M/RA3N

GA1PGA1NGA2PGA2N

LVA3p/GA3PLVA3M/GA3N

BA1PBA1NBA2PBA2NBA3PBA3N

NC/RB1PNC/RB1NNC/RB2PNC/RB2NNC/RB3PNC/RB3N

NC/GB1PNC/GB1NNC/GB2PNC/GB2NNC/GB3PNC/GB3N

LVB1P/NC/BB1PLVB1M/NC/BB1NLVB0P/NC/BB2PLVB0M/NC/BB2N

NC/BB3PNC/BB3N

LVB3P/CLKAPLVB3M/CLKAN

LVBCKMP/NC/CLKBPLVBCKP/NC/CLKBN

NC/ESPOSP

GPO0GPO1GPO2GPO3GPO4

DDC1_CLK/GPO8DDC1_DAT/GPO7

AV

DD

_PLL

AV

DD

AV

SS

AV

SS

_DV

I

LVACKP/NCLVACKM/NC

LVB2P/NCLVB2M/NC

AV

SS

R+R-G+G-B+B-CK+CK-

AD0AD1AD2AD3

BUS TYPE

VAA42

R402

VCC3.3

VDVI

GB4

C4130.1uF

PB6

VPO

PA[0..9] 5

VAA2

VDVI

GPO[0..4]

VCC2.5

GPO0

C4250.1uF

HWRESET6

BB[0..1] 5

C4070.1uF

GNDR3

RB5

SCL6

PA3

B+3

4.7K

GA2

RB[0..5]

VCC2.52

GB5R405

10K 1/16W　

C4100.1uF

PB3

C4120.1uF

AD06

RB0

VOLUME7

VDVI

PB7

VPO

VAD

VCC5V

VAA32

PB0

GPO1

PB[0..9] 5

VAA12

R+3

SDA6

GB0

CSZ6

AD16

CLK+3

AD36 PB9

PA1

GA3

3-WIRE

54

LVDS

BR2P

RB1

GA3

GPOO1

NC

FCLKN

RXO0+

PB0

NC

POL

PA8

RA1N

LVB0M

RXEC-

PB6

GPOO2

GB4

PB8

RXE1-

LVA0P

GPO3

LVB2P

PA6

0R

BB3N

BB[0..1]

R502 0 1/16W　

BB[0..1]4

LVB0P

RA2N

GPOO3

LVB1P

0R

FB0N

BG0N

RXO2-

GA1P

R509 NC

5V

STV

RA2P

GB3PPA8

PA1

BR0N

BG2N

PA[0..9]

GA3N

INNOLUX 15

RB3P

LP

PB8

RA1N

PA7

R508 0 1/16W　

NC

PA[0..9]

RA3N

BB3P

R514 NC

5V

GB1

RXE0+

RB2P

GPOO2

LVB2M

GA3P

R506 0 1/16W　

PB[0..9]

GA3P

0R

PA5

NC

FG1N

FR0N

LVA2P

RXO1-

PB2PB[0..9]4

CPT 17

GB1N

BA2N

LVA0P

RB2

LVA2M

BA3N

+C509

22uF/16V

BB3N

LVB2M

PB1

PB5

R507 0 1/16W　

15"RSDS

0R

GB0

BB1

12V

3.3V

LVA1P

GA2N

LVB1M

RA1P

C502NC

12V

FR1P

RXE2-

NC

B0N

B2P

CLKBP

PA5

BA5

CLKV

RXE3+

GB[0..5]

CLKAN

C510

0.1uF

GB1P

PB[0..9]4

0R

VLCD

CLKAN

R39

0R

NC

C506

NC

C501NC

VLCD2

ESP4

PA[0..9]4

GA3NPB[0..9]

R505 0 1/16W　

GB[0..5]4

NC

GB3PLVB3M

R513 NC

5V

RB3N

BA[0..5]

PA0

PB1

GPO[0..4]4

R41

3.3V

BB2N

FG2P

BA3N

0R

AU 17

R514

VLCD_12V

LVA2M

FG0N

LVA1P

C511

0.1uF

NC

0R

BB2P

BCLKN

BB0BA2N

R509

GA1N

+ C51222uF/16V

0R

BR1N

0R

BA2P

RXE3-

PA4

NC

3.3V

B0P

RXO2+

PA6

PA[0..9]4

BA[0..5]4

17"RSDS

LG 15

RB0

BB2P

PA4

BA1P

R511

BR1P

LVA0M

BA3

HannStar 15

GA1

R503 0 1/16W　

NC

FG1P BG1P

LVACKP RA2P

FB2P

CLKAP

PB9

LVA3P

GPOO0

0R

QDI 17

RXOC+

PB4

B2N

FCLKP

RB2N

LVB0M

C507

NC

PA[0..9]4

3.3V

RA3N

BA0

B1P

PA9

PB[0..9]

NC

CLKBN

RXE1+

R510

GA2P

LVACKM

PA2

HMS

BA1N

PA0

3.3V

GA1P

BG0P

LVBCKP

GA2

R508

PB9

NC

BB1N

LVA3M

RB2P

LVBCKP

GA2P

12V

STH

BR0PFR0P

FG2N

BA1N

R512

FB0P

GPOO3

LVA1M

NC

PA[0..9]

0R

GB2

B1NRB5

GA0

NC

LVB1M

LVA3M

VLCD 2NC

FR1N

OSP

FG0P

CLKBP

BA3P

0R

GB5

BB3P

NC

PB7

BA1

GPO0

GPOO4

0R

RA3P

RB[0..5]

PB[0..9]4

NC

GA1N

FB2N

NC

GB2P

FR2N

RB2NLVACKM

CPT 15

RA1P

RB1N

RXE0-

PA1

VLCD

BB1N

RXEC+

BB1P

LVBCKM

VLCD_12V2

0R

GB3N

RB1N

FB1P

RXOC-

RB3P

LVB2P

NC

ESP

GB2N

BCLKP

RXO1+

PA7

GPO2

C503NC

R504 0 1/16W　

3.3V

GB3

PB3

R511 NC

LVB3M

CN503

CONN

24681012141618202224

13579

11131517192123

R512 0 1/16W　

FB1NPA3

LVB3P

NC

GB1N

LVA0M

LVA1M GA[0..3]4

GB3N

BB2N

PB7

LVACKP

PB6

PB3

R501 0 1/16W　

NC

GPOO4

LVBCKM

RB4

PA9

C508

0.1uF

CN502

CONN

123456789

101112131415161718192021222324252627282930

LVB1P

GB2N

GPOO1

BG1N

CLKBN

BA2P

0R

RA2NRB3N

RXO3-

LVA2P

NC

BR2NCLKAP

C505NC

RB[0..5]4

12V

OE

GA[0..3]

GPO4

GB1P

RB1P

BA2

OSP4

0R

LVB3P

C504NC

BB1P

GA2N

R513

FR2P

RB3

PB2

PB0

BA1P

RXE2+

BA4

GPO[0..4]

3.3V

GPOO0

RXO3+

RA3P

GB2P

LVA3P

RXO0-R510 0 1/16W　

BG2P

RB1P

BA3P

LVB0P

GPO1

CN501

CONN

123456789

1011121314151617181920212223242526272829303132333435363738394041424344454647484950

55

DC Power

GND

C217

0.1uF

onPanel_5V/3.3V6

Q207

PMBS3904

32

1

R215

10K 1/16W　

VAA2

GND

R211

10K 1/16W　

C205

0.1uF

onPanel_12V6

R217

10K 1/16W　

+C211

47uF/16V

Q208AO3407

VCC12V

VCC5V

U201

RT9164-25CG3 2

1

VI VO

GN

D

VCC3.3

VCC12V

R219

10K 1/16W　

VLCD_12V 5

VAA1 4

VCC3.3 4

VCC5V

R206

10K 1/16W　

Q204

PMBS3904

32

1

VCC5V

R214 4.7K 1/16W　

R20410K 1/16W　

VAA3

R207 4.7K 1/16W　

+ C218

10uF/16V

VCC2.5

VCC12V

VCPU

VCC5V

GND

+ C20810uF/16V

VCC5V

Brightness

VLCD

+ C220

10uF/16V

R212 4.7K 1/16W　

onBACKLITE 6

Q203AO3401

GND

VCC2.5 4

Q202

PMBS3904

32

1

D202

GS1D

C219

0.1uF

VAA4 4

VCC5V

R220

4.7K 1/16W　

C212

0.1uF

+C209

47uF/16V

VCC5VVCC5V+

C216

0.1uF

SOT-223

VLCD_12V

C201

0.1uF

R205 4.7K 1/16W　

+C213

47uF/16V

R216

4.7K 1/16W　

D201 SS14

+C215

47uF/16V

GND

C207

0.1uF

R202

10K 1/16W　

R213

10K 1/16W　

R218 4.7K 1/16W　

VCPU 6

C203

0.1uF

+C202

220uF/25V

C210

0.1uF

SOT-263VAA1U202

AIC1084-33M

3

1

2VIN

ADJ

VOUT

onAUDIO6

VCC12V_AUDIO

+C204

220uF/25V

VAA3 4

VCC5V+

VCC12V

GND

VCC5V

Q201PMBS3904

32

1

VCC5V

ON_OFF

AdjBACKLITE4

VAA4R209

NC

VCC5V+

CN201

CONN

24681012

13579

11

R208

10K 1/16W　

VCC12V

VLCD 5

Q206AO3407

R210

0 1/16W　

VCC12V_AUDIO 7

DIM

R2031K 1/16W　

VCC12V

FB201600 OHM

Q205

PMBS3904

32

1

VAA2 4

VCC3.3

C214

0.1uF

R201 4.7K 1/16W　

C206

1uF

VCC12V

56

MCU/ Key Board Connector

R641 0 1/16W　

C60422pF

OUT_L

ST_DET13

R639

10K 1/16W　

K_AUTO

Y60120MHz

R617

120 1/16W　

U603 MAX810STR (NC)

1

23

GN

D

RSTVCC

AUDIO_SD7

LED_ORANGE

DDC_CLK 3

OUT_L 7

R638

10K 1/16W　

SDA 4

POWER R621 0 1/16W　

AUTO

R635 100 1/16W　

EAR_R7

AD2 4

C610

0.001uF

AD0 4

OUT_R

RXD 3

C60222pF

LEFT

RP601

10K 1/16W　

1234

8765K_POWER

EAR_R

R603

10K 1/16W　

LED_O

C613

0.1uF

R637

10K 1/16W　

C608

0.001uF

MENU

R607 10K 1/16W　

LED_BLUE

VCPU2

INT4

VCPU

LED_G

C601

0.1uF

MENU

+C60310uF/16V

K_POWER

CN602

CONN(NC)

2

468101214

1357

9

1113

AD3 4

VCPU

R623 0 1/16W　

D601

LL4148

onPANEL_5V/3.3V 2

POWER

C606

0.001uF

K_AUTO

R601

10K 1/16W　

R6294.7K 1/16W　

VCPU

CN603

NC

1234

CSZ 4

RIGHT

R620 0 1/16W　

Q602PMBS3906

32

1

K_RIGHT

R636100 1/16W　

C605

0.1uF

R640 470 1/16W　

onPANEL_12V2

VCPU

RP602

10K 1/16W　

1234

8765

DDC_DAT 3

K_LEFT

R605 10K 1/16W　

R622 0 1/16W　

LED_GRN

R606 10K 1/16W　

R609 100 1/16W　

OUT_R7

R615 10K 1/16W　

R602

10K 1/16W　

VCPU

EAR_L

R624 0 1/16W　

R626 10K 1/16W　

VCPU

LED_B

R608 100 1/16W　

R6164.7K 1/16W　

R628

0 1/16W　

ResetCircuit

C612

0.1uF

R611 NC

LED_GRN

HWRESET 4

R6194.7K 1/16W　

R642

NC

SCL 4

LED_O

EAR_L 7

U602

24C16

1234 5

678A0

A1A2GND SDA

SCLWP

VCC

R612

NC

R643 NC

OUT_RC6141uF

TXD 3

AD1 4

LED_ORANGE

ST_DET23

LED_BLUE

C607

0.001uF

LEFT

U601

W78E65P-40

35

21

20

10

1415

1617

23456789

4342414039383736

2425262728293031

1918

3233

1311

2244

12

EA/VP

XTAL1

XTAL2

RESET

INT0/P3.2INT1/P3.3

T0/P3.4T1/P3.5

P1.0P1.1P1.2P1.3P1.4P1.5P1.6P1.7

P0.0P0.1P0.2P0.3P0.4P0.5P0.6P0.7

P2.0P2.1P2.2P2.3P2.4P2.5P2.6P2.7

P3.7/RDP3.6/WR

PSENALE/P

P3.1/TXDP3.0/RXDV

SS

VC

C

P4.3

VCPU

K_MENU

VCPU

onBACKLITE 2

OUT_L

C609

0.001uFEAR_R

Q601PMBS3906

32

1

R604 10K 1/16W　

K_RIGHT

Q603PMBS3906

32

1

EAR_L

LED_G

R610 NC

RIGHT

R634 100 1/16W　

K_MENU

R618

120 1/16W　

R61310K 1/16W　

LED_B

AUTO

CN604

CONN

2468101214

13579

1113

K_LEFT

onAUDIO2

57

Audio

OUT_L 6

+ C701470uF/16V

AUDIO_SD6

+C705 470uF/16V

C706 0.47uF/16VD701

LL4148

OUT_R 63

C7030.1uF

VCC12V_AUDIO2

R7105.6K

1/16W　

4

C713

0.1uF

5 C704 0.47uF/16V

CN701

PHONEJACK

R704 100 1/16W　

VOLUME 4

2

1

D702LL4148

VOL

U701TDA7496L

1 2 3

4

5

6

7

8

9

10

11

12

13

14

1516

17

18 19 20

GND

GND

GND

INL

VAROUT_L

VOLUME

VAROUT_R

NC

INR

SVR

STBY

MUTE

GND

OUTR

VSVS

OUTL

GND

GND

GND

MUTE

R702

NC

C710

1uF

R706 100 1/16W　

C711100pF

R712

220K 1/16W　

C709

1uF

R709

NC

R703

10K 1/16W　

C712100pF

R705

10K 1/16W　

R708

1K 1/16W　

+C707 470uF/16V

+ C702470uF/16V

VCC12V_AUDIO

R707

1K 1/16W　

+ C708

470uF/16V

EAR_R 6

R701 10K 1/16W　

EAR_L 6

R7115.6K

1/16W　

58

Inverter Board

CON202

33L8021-2D-AC

1

2

R235 620

C213

0.22U/160V

Q202

DTA144WKA

L202 150UH

D201SMAL240 OR SR24

D210RLS4148

Q205SST3904

D20411B

R216220

C230

1000P/50V

PT202

80AL15T-7-YS

5 9

3,4

6

71

2

TP6

HVL

1

R222 10K

C215

OPEN

C214

0.22U/160V

Q203 SI4431 OR AO4411

4

8

567

321

R234 620

C221

0.47U/25V

L201 150UH

R215

3.9K

R2094.7K

IDPC5425C3(715L-1085-1-S) A

2. FOR 17"&15" 4 LAMPS INVERTER

AOC (Top Victory) Electronics Co., Ltd.

2 2Thursday, April 03, 2003

Title

Size Document Number Rev

Date: Sheet of

C203

1U/25V

D206 RLS4148

is power GND

+12V

C204

0.1U/25V

+ C201

150U/25V

C2121U/25V

R2301K

C220

1U/25V

D202SMAL240 OR SR24

R2311K

C207

4.7U/16V

R20120K

R20547K

R2241K

NO/OFF

R23812K

F2014A/63V

R23912K

TP4HVL

1

+ C223

150U/25V

R21112K

TP5 HVL

1

R207OPEN

R2321K

R2261K

C224

OPEN

Q206SST3904

R2123.9K

Q212

2SC5706

1

23 CON204

33L8021-2D-AC

1

2

C205

0.1U/25V

R2331K

Q204 SI4431 OR AO4411

4

8

567

321

TP3

HVL

1

C210

1U/25V

R218 470

C217

OPEN

Q201

DTC144WKA

D208RLS4148

R2084.7K

R21012K

R2281K

C208

330P/50V

CON201

33L8021-2D-AC

1

2

R2025.1K

R20410K

L20671A55-19

C216

OPEN

C219

1U/25V

L203

73L174-30-YS

1 4

2 3

TP2

HVO1

R240

51K

TP1

HVO1

R2271K

Q210

2SC5706

1

23

is signal GND

R2133.9K

CON203

33L8020-2D-AC

1

2

C206

0.1U/25V

R214

3.9K

C2111U/25V

U20

1TL

1451

ACD

R

1 2 3 4 5 6 7 8910111213141516

CT

RT

1IN

+1I

N-

1FB

K1D

TC1O

UT

GN

DV

cc2O

UT

2DTC

2FB

K2I

N-

2IN

+S

CP

RE

F

D209 RLS4148

Q208SST3906

Q209

2SC5706

1

23

Q207SST3906

R2291K

R237 560

R220 10K

R2251K

R236560

PT201

80AL15T-7-YS

5 9

3,4

6

71

2

C231

1000P/50V

D20311B

D205 RLS4148

R219470

R221 10K

R2035.1K

R217220

L204

73L174-30-YS

1 4

2 3

C218

OPEN

C225

OPEN

C209

1U/25V

C222

0.47U/25V

Q211

2SC5706

1

23

DIM

D207RLS4148

R241

51K

C202

0.1U/25V

R223 15K

L205

71A55-19

R20647K

 

59

L101

INDUCTOR(71L55-28)

GND

D101

SR34 OR SMAL340

C0N102

33A8009-12L-H

123456789

101112

C109

0.1 uF/25V

GND

F101

5A/63V(88A304-1S)

+5V

C103

470 uF/16V

L103

DIP

R103 0(OP)

GND

R102 0

DIM

12V12V

5V

C108

0.1 uF/25V

12V

R101OPEN

5V5V

IDPC7425C3(715L1085-1-S) A

1.POWER

AOC (Top Victory) Electronics Co., Ltd.

A

2 1Thursday, April 03, 2003

Title

Size Document Number Rev

Date: Sheet of

CON101+12V_POWER( 88A304-1S)

is signal GND

R1091K(OP)

GND

DIM

is power GND

ON/OFF

C110

0.1uF/25V

L102

150UH

ON/OFF

GND_F

U101SI-8050SD TO263

1

5

4

3

2VIN

/ON

FBK

GN

D Vout

GND

C101

220 uF/25V

R1043K(OP)

GND

220 uF/25V

C102

+12V

GND