Acer V203W User Manual

Acer V203W  
Service Guide  
1
Copyright  
Copyright © 2003 by Acer Incorporated. All rights reserved. No part of this publication may be reproduced,  
Transmitted, transcribed, stored in a retrieval system, or translated into any language or computer language, in  
any form or by any means, electronic, mechanical, magnetic, optical, chemical, manual or otherwise, without  
the prior written permission of Acer Incorporated.  
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.  
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  
Acer is a registered trademark of Acer Incorporated.  
All other trademarks are property of their respective owners.  
Conventions  
The following conventions are used in this manual:  
Screen messages  
Note  
Denotes actual messages that appear on screen.  
Gives bits and pieces of additional information related to the current topic.  
Alerts you to any damage that might result from doing or not doing specific actions.  
Gives precautionary measures to avoid possible hardware or software problems.  
Remind you to do specific actions relevant to the accomplishment of procedures.  
Warning  
Caution  
Important  
3
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.  
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 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. Dangerous high voltages are present  
inside the monitor. Do not open the cabinet. Refer servicing to qualified personnel only.  
4
Precautions  
z Do not use the monitor near water, e.g. near a bathtub, washbowl, kitchen sink, laundry tub, swimming pool or in  
a wet basement.  
z 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, uses a mounting kit approved by the manufacturer  
and follow the kit instructions.  
z 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.  
z 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.  
z 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.  
z
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.  
z Do not overload power strips and extension cords. Overloading can result in fire or electric shock.  
z 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.  
z 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  
z To ensure satisfactory operation, use the monitor only with UL listed computers which have appropriate  
configured receptacles marked between 100 - 240V AC, Min. 5A.  
z The wall socket shall be installed near the equipment and shall be easily accessible.  
Special Notes On LCD Monitors  
The following symptoms are normal with LCD monitor and do not indicate a problem.  
Notes  
z 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.  
z You may find slightly uneven brightness on the screen depending on the desktop pattern you use.  
z 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.  
z 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.  
5
Table Of Contents  
Chapter 1  
Monitor Features  
…………………………………………  
7
Introduction  
………………………………………  
………………………………………  
………………………………………  
………………………………………  
………………………………………  
………………………………………  
………………………………………  
………………………………………  
………………………………………  
………………………………………  
………………………………………  
7
8
Electrical Requirements  
LCD Monitor General Specification  
LCD Panel Specification  
Support Timing  
9
10  
13  
14  
15  
16  
18  
19  
20  
Monitor Block Diagram  
Main Board Diagram  
Software Flow chart  
Main Board Layout  
Installation  
Attaching/Removing the base  
Chapter 2  
Operating Instructions  
………………………………………  
21  
External Controls  
………………………………………  
………………………………………  
………………………………………  
………………………………………  
………………………………………  
21  
21  
22  
23  
27  
Front Panel Controls  
eColor Management (OSD)  
How to Adjust a Setting  
LOGO  
Chapter 3  
Machine Disassembly  
………………………………………  
28  
Chapter 4  
Chapter 5  
Troubleshooting  
………………………………………  
………………………………………  
31  
37  
Connector Information  
Chapter 6  
Chapter 7  
FRU (Field Replacement Unit) List  
………………………………………  
38  
Exploded Diagram  
………………………………………  
38  
Schematic Diagram  
………………………………………  
41  
6
Chapter 1  
Monitor Features  
Introduction  
Scope  
This specification defines the requirements for the 20” MICROPROCESSOR based Multi-mode supported high  
resolution color LCD monitor. This monitor can be directly connected to general 15-pin D-sub VGA connector, also  
supports VESA DPMS power management and plug & play function.  
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 V203W  
Panel  
M201EW02 V80C SZ AUO  
Signal Interface  
Sync Type  
D-Sub 15-pin  
Separate / Compatible  
Color Temp User Adjust  
DDC  
Support  
DDC2B  
No  
Speaker  
Headphone Jack  
Microphone Jack  
USB Hub  
No  
No  
Not support  
Yes / No  
Tilt / Swivel  
7
Electrical Requirements  
Standard Test Conditions  
All tests shall be performed under the following conditions, unless otherwise specified.  
Ambient light  
Dark room (< 1 cd/m2)  
Viewing distance  
Warm up time  
40 cm for LCD performance, 20 cm for LCD failures  
30 minutes  
Analog Input signal  
Control temperature  
Brightness control  
700 mVss  
6500°K (e-Color set to “User” mode)  
The value under user mode  
Set to The value under user mode, which allows that the brightest  
User contrast control  
two of 32 linear distributed gray-scales (0700mv) can be  
distinguished.  
Picture position and size  
Viewing angle  
Factory preset value  
90 ° H and V  
AC Supply voltage  
Ambient temperature  
Humidity  
230V± 5, 50±3Hz  
20+5  
65% ± 20%  
Display mode  
1680x1050, 60 Hz, all white  
Set to “User” mode  
e-color mode  
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  
8
LCD Monitor General Specification  
Driving system  
TFT Color LCD  
Active Display Area  
433.41(H) x 270.90(V)  
Pixel pitch  
LCD Panel  
0.258(H) x 0.258(W)  
1000 : 1  
Contrast Ratio  
Response time  
Luminance of White  
Separate Sync.  
5ms  
300(Typ.) cd/㎡  
H/V TTL  
Input  
H-Frequency  
V-Frequency  
30kHz – 83kHz  
56-75Hz  
Viewing angle  
Display Colors  
Display mode  
CR=10: H:170 / V:170 ( typ) CR=5: H:176 / V:176 ( typ)  
16.7M  
1680 x 1050 @60Hz  
ON Mode  
< 49W  
< 1W  
EPA ENERGY STAR®  
OFF Mode  
Set to The value under user mode, which allows that the brightest two of 32 linear  
Contrast control  
Power Source  
distributed gray-scales (0700mv) can be distinguished.  
90 V ~ 240 V50 ± 3Hz, 60 ± 3Hz  
Operating Temp: 0° to 40°C  
Storage Temp: -30° to 65°C  
Operating Humidity: 0% to 90%  
Storage Humidity: 0% to 90%  
Environmental  
Considerations  
Peak surge current  
Power line surge  
< 100 A peak at 230 VAC and cold starting&25& DC Output at Full-load  
No advance effects (no loss of information or defect) with a maximum of 1 half-wave  
missing per second  
9
LCD Panel Specification  
This specification applies to the 20.1 inch-wide Color TFT-LCD Module M201EW02.  
The display supports the WSXGA+ (1680(H) x 1050(V)) screen format and 16.7M colors (RGB 6-bits+Hi-RFC data).  
All input signals are 2 Channel LVDS interface compatible. This module does not contain an inverter card for  
backlight.  
General Specifications  
Functional Block Diagram  
10  
Electrical Characteristics  
TFT LCD ModulePower Specification  
Backlight Unit  
11  
Optical Specifications  
12  
Support Timing  
Horizontal  
Nominal Sync  
Vertical  
Nominal  
Sync  
Nominal  
Pixel  
Frequency Polarity  
+/- 0.5kHz  
Freq.  
Polarity  
Mode  
Resolution  
Total  
+/- 1 Hz  
Clock  
(MHz)  
25.175  
31.500  
31.500  
36.000  
40.000  
50.000  
49.500  
65.000  
75.000  
78.750  
108.000  
108.000  
135.000  
106.5  
640x480@60Hz  
640x480@72Hz  
640x480@75Hz  
800x600@56Hz  
800x600@60Hz  
800x600@72Hz  
800x600@75Hz  
1024x768@60Hz  
1024x768@70Hz  
1024x768@75Hz  
1152x864@75Hz  
1280x1024@60Hz  
1280x1024@75Hz  
1440x900@60Hz  
1440x900@75Hz  
1600x1200@60Hz  
1680x1050@60Hz  
800 x 525  
832 x 520  
840 x 500  
1024 x 625  
1056 x 628  
1040 x 666  
1056x625  
1344x806  
1328x806  
1312x800  
1600X900  
1688x1066  
1688x1066  
1904x934  
1936x942  
2160x1250  
2240x1089  
31.469  
37.861  
37.500  
35.156  
37.879  
48.077  
46.875  
48.363  
56.476  
60.023  
67.5khz  
63.981  
79.976  
55.93  
N
N
N
N/P  
P
59.940  
72.809  
75.00  
56.250  
60.317  
72.188  
75.000  
60.004  
70.069  
75.029  
75  
N
N
N
N/P  
P
VGA  
SVGA  
P
P
P
P
N
N
P
N
N
P
XGA  
VESA  
P
P
P
60.020  
75.025  
60  
P
P
P
SXGA  
P
P
70.635  
75  
P
75  
N
136.75  
162  
UXGA  
60  
WSXGA+  
65.29  
59.954  
146.25  
13  
Monitor Block Diagram  
The LCD MONITOR will contain a main board, a power board, and key board which house the flat panel control logic,  
brightness control logic and DDC.  
The power board will provide AC to DC Inverter voltage to drive the backlight of panel and the main board chips  
each voltage.  
Flat Panel and  
CCFL Drive.  
CCFL backlight  
Inverter Board  
Main Board  
(include adapter)  
Input :  
Key board  
D-SUB Signal  
AC-IN  
90V-264V  
14  
Main Board Diagram  
Crystal  
(X401)  
12MHz  
LCD Interface  
(CN101)  
Scalar IC NT68625HMFG-128 JS  
(Include MCU ,ADC, OSD)  
(U401)  
H sync  
V sync  
RGB  
Key Board  
D-Sub  
Connector  
(CN403)  
Control  
(CN701)  
15  
Software Flow Chart  
1
2
4
5
Y
3
N
N
N
Y
6
N
7
8
Y
Y
9
N
10  
11  
13  
Y
N
N
12  
Y
Y
N
14  
15  
16  
Y
17  
N
19  
18  
Y
16  
Remark:  
1) MCU initializes.  
2) Is the EEPROM blank?  
3) Program the EEPROM by default values.  
4) Get the PWM value of brightness from EEPROM.  
5) Is the power key pressed?  
6) Clear all global flags.  
7) Are the AUTO and SELECT keys pressed?  
8) Enter factory mode.  
9) Save 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 port, are there any signals coming?  
13) Does the scalar send out an interrupt request?  
14) Wake up the scalar.  
15) Are there any signals coming from analog port?  
16) Display "No connection Check Signal Cable" message. And go into standby mode after the  
message disappears.  
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?  
17  
Main Board Layout  
Symbol  
Description  
Symbol  
CN701  
CN702  
CN403  
X401  
Description  
U402  
U401  
AZ431AN-A-E1  
WAFER 6PIN  
NT68625HMFG-128 JS  
AP1117E33LA  
WAFER 9P RIGHT ANELE PITCH  
D-SUB 15PIN  
U702  
CN101  
CONNECTOR  
NXS12.000AC30F-BT-2  
18  
Installation  
To install the monitor on your host system, please follow the steps below:  
Steps  
1 Connect the video cable  
AMake sure both the monitor and computer are switched off.  
BConnect the VGA video cable to the computer.  
2 Connect the power cord  
Connect the power cord to the monitor, then to a properly grounded AC outlet.  
3 Turn on the monitor and computer  
Turn on the monitor first, then the computer. This sequence is very important.  
4 If the monitor does not function properly, please refer to the troubleshooting section to diagnose the problem.  
19  
Attaching/Removing the Base  
Attaching:  
Align the release button on the bottom of the monitor with the corresponding slots on the bottom of the base.  
Removing:  
Press the release button as indicated, then pull in the direction of the arrow to remove the base.  
20  
Chapter 2  
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  
Front panel controls  
1 Power LED: Lights up to indicate the power is turned on.  
2 Power Switch: Turn the power on or off.  
3.4 < / > : Press < or > to navigate to the desired function, press Enter to select the function. Press < or > to change  
the settings of the current function.  
5 Menu/Enter: Activate the OSD menu when the OSD is off or activate deactivate the adjustment function when the  
OSD is on.  
6 Auto adjust button/Exit:  
a. When the OSD menu is active, this button will act as the exit key exit OSD menu).  
b. When the OSD menu is inactive, press this button for two seconds to activate the Auto Adjustment function. The  
Auto Adjustment function s used to set the HPos, VPos, Clock and Focus.  
7 Empowering Key/Exit:  
a. When the OSD menu is active, this button will act as the exit key exit OSD menu).  
b. When the OSD menu is inactive, press this button to select scenario mode.  
21  
eColor Management (OSD)  
22  
How to Adjust a Setting  
23  
Adjusting the picture  
24  
25  
OSD Message  
a. Outline  
b. The Description For OSD Message  
Item  
Description  
Auto Config  
Please Wait  
When Analog signal input, if User Press Hot-Key “Auto”, will show this message, and the  
monitor do the auto config function.  
Input Not  
When the Hsync Frequency, Vsync Frequency or Resolution is out of the monitor  
support range, will show this message. This message will be flying.  
Supported  
Cable Not  
Connected  
Analog-Only Model: When the video cable is not connected, will show this message.  
This message will be flying.  
Analog-Only Model: When the video cable is connected, but there is no active signal  
input, will show this message, then enter power saving.  
No Signal  
26  
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 DDC2B Feature  
This monitor is equipped with VESA DDC2B 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 DDC2B is a bi-directional 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 signals 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. Pressing a key on the keyboard, or clicking the mouse  
restores the display.  
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, and 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.  
27  
Chapter 3  
Machine Disassembly  
This chapter contains step-by-step procedures on how to disassemble the monitor for  
maintenance.  
Disassembly Procedure  
1. Remove the cover hinge as the following indicator. (Fig 1)  
Fig 1  
2. Remove the screws as following indicate to release base stand. (Fig 2)  
Fig 2  
28  
3. Remove the back cover and bezel. (Fig 3)  
Fig 3  
4. Remove the lamp connectors and the screw. (Fig 4-5)  
Fig 4  
Fig 5  
29  
5. Remove the screws to remove the panel. Put attention to the LVDS cable.(Fig 6-7)  
Fig 6  
Fig 7  
6. Remove the screws to remove the main board and power board.( Fig 8)  
Fig 8  
30  
Chapter 4  
Troubleshooting  
This chapter provides troubleshooting information for the V203W:  
1. No Power  
No power  
Press power key and look if the  
picture is normal  
NG  
Please reinsert and make sure the  
AC of 100-240 is normal  
NG  
Reinsert or check the  
power section  
OK  
Measure U702 Pin2=3.3V,  
NG  
Measure CN702  
OK  
OK  
Check if X401 oscillate  
waveforms are normal  
Replace U702  
NG  
OK  
Replace X401  
Replace U401  
31  
2. No Picture (LED is orange)  
No picture  
NG  
NG  
NG  
The button if under  
control  
X401 oscillate  
Replace X401  
waveform is normal  
OK  
OK  
Check Correspondent  
component  
Check reset circuit of  
U401 is normal  
Measure U702 Pin2=3.3V,  
OK  
Replace U401  
OK  
NG  
X401 oscillate  
waveform is normal  
Replace U702  
Replace X401  
NG  
OK  
Check HS/VS from  
CN403 is normal  
NG  
Check Correspondent  
component  
OK  
Replace U401  
32  
3. Panel Power Circuit  
White screen  
NG  
Measure Q705 base  
is high level?  
X401 oscillate  
waveform is normal  
OK  
NG  
Replace X401  
OK  
Check CN101 is solder  
and Q704,Q705 is OK?  
Check reset circuit of  
U401 is normal  
NG  
Check Correspondent  
component.  
NG  
Check Correspondent  
component.  
OK  
OK  
Replace U401  
Replace PANEL  
33  
4. Key Board  
OSD is unstable or not working  
NG  
Is Key Pad Board connecting normally?  
Y
Connect Key Board  
Replace Button Switch  
Replace Key Board  
NG  
Is Button Switch normally?  
Y
NG  
Is Key Pad Board normally?  
Y
Check Main Board  
34  
5. Power Board  
No power  
No power  
Check to CN902 Pin10,11 =14V and Pin6,7 = 5 V  
NG  
OK  
Check Interface board  
Check AC line volt 120V or 220V  
NG  
Change F901, Check BD901, L901, IC901  
Check bridge retified circuit  
OK  
Check the voltage of C905(+)  
NG  
OK  
Check start voltage for the Pin2 of IC901  
NG  
Change IC901  
OK  
Check the auxiliary voltage is smaller than 20V  
NG  
Check IC901  
OK  
Check T901,D906, D907, Q903,ZD921,ZD922,IC904,IC903  
35  
W/LED No Backlight  
Check the 14V voltage input  
NG  
NG  
NG  
Check the adapter  
OK  
Check ON/OFF signal  
OK  
Check Interface board  
Check IC801 pin12=12V?  
Change Q805.Q808 or Q810  
OK  
Check the pin9&10 of IC801 have PWM wave  
NG  
Change Q801/Q804/Q811/Q812  
OK  
OK  
Replace IC801  
Check the resonant wave  
of pin3 & pin7 for T801  
NG  
OK  
Check Q802/Q803  
Check the output of T801,T802  
NG  
Change T801,T802  
OK  
Check connecter & lamp  
36  
Chapter 5  
Connector Information  
The following figure shows the connector locations on the monitor:  
37  
Chapter 6  
FRU (Field Replaceable Unit) List  
This chapter gives you the FRU (Field Replaceable Unit) listing in global configurations of V203W.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  
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.  
Exploded Diagram (Model: V203W)  
38  
Part List  
Above picture show the description of the following component.  
Item  
Picture  
Description  
1
Base  
2
Main Frame  
3
Panel  
39  
4
Power Board  
5
Main Board  
40  
Chapter 7  
Schematic Diagram  
Main Board  
move FB403 FB404 FB405  
to CN403  
+5V  
R425 1K 1/16W 5%  
ZD402  
D403  
BAV99  
FB404  
VGA_5V  
UDZSNP5.6B  
B1  
1
2
R426  
C418  
0.047uF  
BI1  
4
4
VGA_VDD  
ZD407  
30 OHM  
100R 1/16W 5%  
R427  
75R 1/16W 5%  
CN403  
DB15  
UDZSNP5.6B  
R428  
4K7 1/16W 5%  
R429  
C419  
0.047uF  
BI1-  
100R 1/16W 5%  
R430  
R424  
10  
5
9
4
8
3
7
2
6
1K 1/16W 5%  
15  
14  
13  
12  
11  
4
VGA_SCL  
VGA_DET  
4
100R 1/16W 5%  
VS  
HS  
ZD403  
B1  
ZD401  
D404  
R431  
C420  
1N 50V  
SOGI  
GI1  
4
4
BAV99  
UDZSNP5.6B  
G1  
R1  
UDZSNP5.6B  
FB403  
470R 1/16W 5%  
R432  
1
G1  
1
2
C421  
0.047uF  
30 OHM  
100R 1/16W 5%  
R433  
VGA_VDD  
75R 1/16W 5%  
Add Zener  
for ESD  
R434  
C422  
0.047uF  
GI1-  
4
D-SUB1  
100R 1/16W 5%  
R435  
4K7 1/16W 5%  
R436  
VS  
VSI  
4
R437  
100R 1/16W 5%  
4
VGA_SDA  
ZD404  
100R 1/16W 5%  
D402  
ZD405  
UDZSNP5.6B  
R438  
2K2 1/16W 5%  
C423  
220pF  
BAV99  
FB405  
UDZSNP5.6B  
R1  
1
2
R439  
C417  
0.047uF  
RI1  
4
4
30 OHM  
100R 1/16W 5%  
R440  
75R 1/16W 5%  
FB406  
R441  
HS  
R442  
C424  
0.047uF  
RI1-  
HSI  
4
0 OHM +-5% 1/10W  
ZD406  
100R 1/16W 5%  
100R 1/16W 5%  
UDZSNP5.6B  
R443  
2K2 1/16W 5%  
C425  
22pF  
move C423 C425 to  
R438 R443  
41  
CN101  
T0M  
T0P  
T1M  
T1P  
T2M  
T2P  
30  
29  
28  
27  
26  
25  
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
14  
13  
12  
11  
10  
9
LVDS  
OUTPUT  
4
4
4
4
4
4
T0P  
T0M  
T1P  
T1M  
T2P  
T2M  
TCLK1M  
TCLK1P  
T3M  
T3P  
T4M  
4
4
TCLK1P  
TCLK1M  
4
T4P  
T3P  
T3M  
T4P  
T4M  
T5P  
T5M  
T6P  
T6M  
T5M  
T5P  
4
4
4
4
4
4
4
T6M  
T6P  
TCLK2M  
TCLK2P  
T7M  
4
4
TCLK2P  
T7P  
8
7
6
5
TCLK2M  
4
4
T7P  
T7M  
4
3
2
1
LCD-VDD  
LCD-VDD  
LCD-VDD  
CONN  
LCD-VDD  
+5V  
FB703  
120 OHM  
+
C715  
22uF/16V  
C714  
0.1uF 16V  
R710  
220 OHM 1/4W  
R711  
10K 1/16W 5%  
R712  
10K 1/16W 5%  
Q704  
AO3401  
R713  
10K 1/16W 5%  
Q705  
4
PANEL_ON  
PMBS3904  
C716  
1uF 10V  
C717  
0.1uF 16V  
+5V  
R714  
10K 1/16W 5%  
42  
T0M  
T0P  
T1M  
T1P  
T2M  
T2P  
3
3
3
3
3
3
DVDD  
NO.  
1
PARTS  
U401  
R444  
R445  
C426  
R422  
R447  
R448  
C427  
NONE OD  
NT68665  
0R  
OD  
NT68670  
53  
C402  
2
NC  
0.1uF 16V  
3
NC  
0R  
4
NC  
0.1u  
NC  
5
100R  
0R  
TCLK1M  
TCLK1P  
3
3
6
NC  
7
NC  
0R  
T3M  
T3P  
T4M  
T4P  
T5M  
T5P  
T6M  
T6P  
3
3
3
3
3
3
3
3
CVDD18  
ADC_VAA  
+1.8V  
FB402  
8
NC  
0.1u  
26  
52  
115  
119  
2
1
NC  
C403  
0.1uF 16V  
C404  
C426  
NC  
C405  
0.1uF 16V  
0.1uF 16V  
MCU_VDD DVDD  
R445  
R444  
TCLK2M  
TCLK2P  
3
3
NC  
T7M  
T7P  
3
3
D401 BAV70  
MCU_VDD  
+5V  
VGA_VDD  
C401  
1
Q401  
PMBS3904  
0.1uF 16V  
3
VGA_5V  
2
PANEL_ON  
3
C406 change type E-C to 0603 11/23/07  
R402  
1K 1/16W 5%  
C406  
1uF 16V  
R403  
3K OHM 1/16W  
WP  
MCU_VDD  
Cancel Eeprom(24C16), because the data can  
input Scaler.11/23/07  
U402  
AZ431AN-AE1  
R404 change type 0402 5%-->0603 1%  
10/12/07  
R404  
10K 1/10W 1%  
R415  
R416  
4K7 1/16W 5%  
4K7 1/16W 5%  
103  
104  
105  
106  
107  
108  
109  
110  
111  
112  
113  
114  
115  
116  
117  
118  
119  
120  
121  
122  
123  
124  
125  
126  
127  
128  
64  
63  
62  
61  
60  
59  
58  
57  
56  
55  
54  
53  
52  
51  
50  
49  
48  
47  
46  
45  
44  
43  
42  
41  
40  
39  
5
5
LED_A  
LED_G  
PC7  
CGND/DGND  
RSGA1M  
R405  
R406  
NC  
NC  
PD0  
U403  
1
2
3
4
8
7
6
5
PD1  
RSGA1P/VCKI  
RSCLKAM/V7  
RSCLKAP/V6  
RSBA3M/V5  
RSBA3P/V4  
RSBA2M/V3  
RSBA2P/V2  
RSBA1M/V1  
RSBA1P/V0  
DVDD  
A0  
A1  
A2  
GND  
VCC  
WP  
SCL  
SDA  
Add AZ431 5V-->3.3V  
WP  
SCL  
SDA  
5
BL_EN  
PD2  
HSO  
VSO  
PD3  
NC  
C407  
NC  
PD4  
NC/(HSYNCI)  
GPO1  
AD0/GPO2  
AD1/GPO3  
INT_VSO/GPO4  
INT_HSO/GPO5  
CVDD  
DVDD  
MCU_VDD  
+5V  
DVDD  
R410 R411  
R408  
VSO  
HSO  
CVDD18  
CVDD18  
R407  
10K 1/16W 5%  
R448  
NC  
CVDD  
R412  
1K 1/16W 5%  
IRQn  
R401  
GPO6  
IRQn  
NC  
NC  
SCL  
5
5
BL_DIM  
PWMA/GPO7  
PWMB/GPO8  
NC/(VSYNCI)  
PC0*  
SCL/P34  
CVDD18  
R413  
SDA  
C427  
NC  
SDA/P35  
R446  
1K 1/16W 5%  
RSTn  
RSTn/PD5  
R449 NC  
R450 NC  
R414 NC  
MUTE  
PB4*/DDC_SCL0  
PB5*/DDC_SDA0  
PLL_VDD  
U401  
NT68625HMFG  
FB401  
NC  
PC1*  
+1.8V  
DPLL  
R417  
R418  
10K 1/16W 5%  
2
1
5
5
PANEL_ID  
VOLUME  
PC3/PWM0  
PC4/PWM1  
PC5  
0R05 1/16W  
PWR_KEY  
REFCLKI  
C408  
0.1uF 16V  
C409  
TCLK  
+
C410  
5
PLL_GND  
100uF/25V  
5
5
KEY1  
KEY0  
VSI  
HSI  
2
2
PB1/ADC1  
PB0/ADC0  
OSCI  
TOUTP/VSYNCI1  
HSYNCI1  
C411  
0.1uF 16V  
C412  
NC  
NC(C1206)  
PA7*/PWM9*  
PA6*/PWM8*  
To made the volume control smoothly  
R419  
1M 1/16W 5%  
OSCO  
X401  
12MHz  
change to 093G-2251B-J  
for crystal temp over  
spec 10/23/07  
C413  
47pF  
C414  
47pF  
MCU_VDD  
+5V  
R420  
100R 1/16W 5%  
R421  
C415  
0.1uF 16V  
+3.3V  
3.9K OHM 1% 1/16W  
REFCLKI  
R422  
100R 1/16W 5%  
5V_DETECT  
ADC_VAA  
VGA_DET  
VGA_SCL  
2
2
2
R423  
C416  
100pF  
2
2
2
2
2
2
2
BI1  
BI1-  
SOGI  
3.9K OHM 1% 1/16W  
VGA_SDA  
IRQn  
R447  
RX  
0R05 1/16W  
GI1  
GI1-  
RI1  
RI1-  
Detect 5V-->4V Reset  
TX  
NC  
5V_DETECT  
NC  
NC  
+5V  
1
2
3
4
TX  
RX  
1
2
3
SCL  
SDA  
NC  
For Debug Use  
43  
+3.3V  
+5V  
R702  
CN702  
+3.3V  
10K 1/16W 5%  
+5V  
U702  
VIN  
AP1117E33LA  
FB701 120OHM  
1
DVDD  
2
3
4
5
6
7
8
9
3
2
2
1
VOUT  
R703  
1K 1/16W 5%  
ADC_VAA  
2
1
BL_DIM 4  
PANEL_ID  
Q701  
PMBS3904  
R705  
10K 1/16W 5%  
C702  
+
+
FB702 120OHM  
4
C704  
0.1uF 16V  
VOLUME  
4
100uF/25V  
MUTE  
4
BL_EN  
4
R704  
NC  
C703  
100uF/25V  
C705  
0.1uF 16V  
C701  
CONN  
0.1uF 16V  
Cancel 5V to 1.8V LDO,because  
the Scaler can support it.  
D701  
SM340A  
U701  
Vin  
+5V  
NC  
+1.8V  
3
2
Vout  
CN701  
+
1
R706  
R707  
R708  
R709  
R701  
100R 1/16W 5%  
100R 1/16W 5%  
1K 1/16W 5%  
330R 1/16W 5%  
100R 1/16W 5%  
C707  
KEY0  
KEY1  
PWR_KEY  
4
4
2
3
4
5
6
NC  
C708  
NC  
C706  
NC  
4
+3.3V  
CONN  
LED_G  
4
Q702  
PMBS3906  
+3.3V  
Q703  
PMBS3906  
LED_A  
4
44  
Power board  
45  
46  
Key board  
ZD001  
2
UDZSNP5.6B  
1
add ZD001 and ZD002 for ESD solution  
LED001  
LED  
4
3
2
1
2
1
CN001  
ZD002  
UDZSNP5.6B  
1
2
3
4
5
6
LBADC1  
LBADC2  
POWER_Key  
LED_BLUE#  
LED_RED#  
R001  
R002  
2K OHM 1/16W  
2K OHM 1/16W  
LED_BLUE#  
LED_RED#  
C001  
NC  
C002 C003  
C004  
NC  
C005  
NC  
NC  
NC  
CONN  
R003  
1K 1/16W 5%  
MENU  
LBADC1  
VOL- (GND) 0 V  
VOL+  
LBADC2  
1
3
5
7
9
11  
AUTO  
SW001  
JB41-03521  
ECOLOR(GND) 0 V  
2
4
6
8
10  
12  
CN001  
CONNECTOR ECOLOR AUTO MENU  
VOL-  
VOL+  
POWER LED  
47  

GE Monogram ZGU384NSMSS User Manual
Dell UltraSharp 2007WFP User Manual
Dell Computer Monitor E1709WC User Manual
Cypress CY7C1545V18 User Manual
Cypress CY7C1318CV18 250BZC User Manual
Clarion CJ 5600E User Manual
Black Box Computer Hardware ACXSFPS User Manual
AT T 906 User Manual
AOC Computer Monitor E2343F User Manual
Acer Computer Hardware AcerPower 2100 User Manual