Acer Computer Monitor B203W User Manual

Acer B203W  
Service Guide  
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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  
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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.  
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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.  
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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  
………………………………………  
22  
External Controls  
………………………………………  
………………………………………  
………………………………………  
………………………………………  
………………………………………  
22  
22  
23  
24  
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  
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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 and 24  
pin DVI 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 B203W  
Panel  
M201EW02 V80C SZ AUO  
D-Sub 15-pin/DVI 24-pin  
Separate / Compatible  
Support  
Signal Interface  
Sync Type  
Color Temp User Adjust  
DDC  
DDC2B  
TA7AM6D8W7AYDN(Yes)  
TA7AM6D8W7AYHN(No)  
TA7AM6D8W7AYDN(Yes)  
TA7AM6D8W7AYHN(No)  
Speaker  
Headphone Jack  
Microphone Jack  
USB Hub  
No  
Not support  
Yes / Yes  
Tilt / Swivel  
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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  
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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(Type) 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 ( type) CR=5: H:176 / V:176 ( type)  
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  
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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  
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Electrical Characteristics  
TFT LCD ModulePower Specification  
Backlight Unit  
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Optical Specifications  
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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  
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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 :  
Input :  
Key board  
D-SUB Signal  
DVI Signal  
AC-IN  
90V-264V  
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Main Board Diagram  
Crystal  
(X401)  
LCD Interface  
(CN301)  
14.31818MHZ  
Key Board  
Control  
U401  
Scalar IC TSUM5PFHL-LF  
(Include MCU ,ADC, OSD)  
·
(CN402)  
H sync  
V sync  
RGB  
D-Sub  
Connector  
(CN101)  
DVI  
Connector  
(CN102)  
15  
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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
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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?  
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Main Board Layout  
Symbol  
Description  
Symbol  
CN102  
Description  
CN402  
WAFER  
DVI 24PIN CONNECTOR  
U103/U104/U105/  
U106/U107  
U403  
CN701  
WAFER 9P RIGHT ANELE PITCH  
IC AZC099-04S SOT23-6L  
CN301  
CN101  
U401  
CONNECTOR  
IC M24C04-WMN6TP SO8  
SST25LF020A-33-4C-SAE  
AP1117E33LA  
D-SUB 15PIN  
U402  
IC TSUM5PFHL-LF  
U701  
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Installation  
To install the monitor on your host system, please follow the steps below:  
Steps  
1.Connect the video cable  
A: Make sure both the monitor and computer are switched off.  
B: Connect the VGA video cable to the computer.  
C: Connect the digital cable (only for dual-input models).  
(1) Make sure both the monitor and computer are switched off.  
(2) Connect one end of the 24-pin DVI cable to the back of the monitor and the other end to the computer's port.  
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.  
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Attaching/Removing The Base  
Install: Align the base with the stand and push the base towards the top of the monitor, and then rotate the base  
clockwise. Tighten the screw clockwise.  
Remove: Reverse the steps to remove the base.  
Screen Position Adjustment  
In order to optimize the best viewing position, you can adjust the height/tilt/swivel/pivot of the monitor.  
Height Adjustment  
After pressing the top of the monitor, push the lock button towards right, then you can adjust the height of the  
monitor.  
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Tilt  
Please see the illustration below for an example of the tilt range.  
Swivel  
With the built-in pedestal, you can swivel the monitor for the most comfortable viewing angle.  
Monitor Pivot  
Adjust height to the top position before rotation the monitor. Rotate clockwise until the monitor stops at 90°.  
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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.  
22  
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eColor Management (OSD)  
23  
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How to Adjust a Setting  
24  
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Adjusting the picture  
25  
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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.  
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Chapter 3  
Machine Disassembly  
This chapter contains step-by-step procedures on how to disassemble the monitor for  
maintenance.  
Disassembly Procedure  
1. Remove the HINGE ASSEMBLY as the following indicator. (Fig 1)  
Fig 1  
2. Remove the back cover and bezel. (Fig 2)  
Fig 2  
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3. Remove the lamp connectors and the screw. (Fig 3-4)  
Fig 3  
Fig 4  
4. Remove the screws to remove the panel. Put attention to the LVDS cable.(Fig 5)  
Fig 5  
5. Remove the screws to remove the main board and power board.( Fig 6)  
Fig 6  
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Chapter 4  
Troubleshooting  
This chapter provides troubleshooting information for the B203W:  
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 U701 Pin2=3.3V,  
NG  
Measure CN701  
OK  
OK  
Check if X401 oscillate  
waveforms are normal  
Replace U701  
NG  
OK  
Replace X401  
Replace U401  
30  
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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 U701 Pin2=3.3V,  
OK  
Replace U401  
OK  
NG  
Check X401 oscillate  
waveform is normal  
Replace U701  
Replace X401  
NG  
OK  
Check HS/VS from  
CN101 is normal  
NG  
Check Correspondent  
component  
OK  
Replace U401  
31  
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3. Panel Power Circuit  
White screen  
NG  
Measure Q301 base  
is low level?  
X401 oscillate  
waveform is normal  
OK  
NG  
Replace X401  
OK  
Check CN301 is solder  
and Q301,Q302 is OK?  
Check reset circuit of  
U401 is normal  
NG  
Check Correspondent  
component.  
NG  
Check Correspondent  
component.  
OK  
OK  
Replace U401  
Replace PANEL  
32  
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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  
33  
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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  
34  
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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  
35  
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Chapter 5  
Connector Information  
The following figure shows the connector locations on the monitor:  
D-SUB connector  
36  
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DVI Connector  
37  
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Chapter 6  
FRU (Field Replaceable Unit) List  
This chapter gives you the FRU (Field Replaceable Unit) listing in global configurations of B203W.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: B203W)  
38  
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Part List  
Above picture show the description of the following component.  
Item  
Picture  
Description  
1
HINGE ASSEMBLY  
2
Main Frame  
3
Panel  
39  
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4
Power Board  
5
Main Board  
6
FFC CABLE  
40  
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Chapter 7  
Schematic Diagram  
Main Board  
FB102  
BEAD  
MVCC  
VGA_B+  
VGA_B-  
VGA_G+  
VGA_G-  
VGA_R+  
VGA_R-  
DVI_5V  
1
1
1
2
2
2
R105  
100R 1/16W 5% C102  
0.047uF  
DSUB_B+  
DSUB_B-  
2
H_Sync R102  
V_Sy nc  
0R05 1/10W 5%  
R106  
R103 1K 1/16W 5%  
R104 1K 1/16W 5%  
R108  
C105  
5pF/50V  
DSUB_H  
DSUB_V  
2
2
D109  
75R 1/16W 5%  
R107  
C103 C104  
22pF  
BAT54C  
R109  
100R 1/16WC51%06  
0.047uF  
2
2K2 1/16W 5%  
2K2 1/16W 5%  
22pF  
DSUB_5V  
U104  
ESD_VCC  
R110  
470R 1/16W 5% C107  
1000pF  
DSUB_SOG  
DSUB_G+  
2
DSUB_SCL  
DSUB_SDA  
1
2
3
6
5
4
H_Sync  
V_Sy nc  
FB103  
BEAD  
I/O1 I/O4  
GNDVDD  
I/O2 I/O3  
CN101  
R111  
100R 1/16W 5% C108  
0.047uF  
2
FB107  
R101  
10  
5
9
4
8
3
7
2
6
1
AZC099-04S  
C112  
NC  
R112  
C109  
5pF/50V  
DDC1_SCL  
DSUB_SCL 15  
VGA_PLUG  
DSUB_5V  
2
DDC1_SCL  
DDC1_SDA  
300 OHM  
75R 1/16W 5%  
100R 1/16W 5%  
14  
候綼 U103  
VGA_B-  
C124  
0.1uF 16V  
R114  
100R 1/16W 5% C110  
0.047uF  
DSUB_G-  
DSUB_R+  
2
13  
DSUB_SDA 12  
11  
VGA_B+  
VGA_G-  
VGA_G+  
VGA_R-  
VGA_R+  
ZD104  
RLZ5.6B  
R113  
ZD105  
RLZ5.6B  
VGA_G+  
DDC1_SDA  
100R 1/16W 5%  
2
U103  
ESD_VCC  
1
2
3
6
5
4
FB101  
BEAD  
I/O1 I/O4  
GNDVDD  
I/O2 I/O3  
DB15  
VGA_R+  
VGA_B+  
R115  
100R 1/16W 5%  
C111  
2
0.047uF  
AZC099-04S  
C101  
NC  
R116  
C113  
5pF/50V  
75R 1/16W 5%  
Prevent NC contact Discharge  
=> Connect NC Pin of CN101  
to GND  
候綼 U101  
R117  
100R 1/16W 5%C114  
0.047uF  
CMVCC  
DSUB_R-  
DSUB_5V  
2
Change VCC of U103 ~ U107  
from MVCC to ESD_VCC to  
prevent without VCC issue.  
CN102  
DVI_5V  
D104  
8
VSYNC  
SYNC GND  
DDC SCL  
DDC SDA  
+5V  
BAT54C  
15 DVI_HPD  
6
7
14  
16  
R118 100R 1/16W 5% DDC2_SCL  
R119 100R 1/16W 5% DDC2_SDA  
DDC2_SCL  
DDC2_SDA  
2
2
R120 10K 1/16W 5%  
R140  
NC  
HPD  
R123  
NC  
R125  
4K7 1/16W 5%  
C116  
NC  
11  
3
19  
22  
C115  
R121  
1/3shield  
2/4shield  
0/5shield  
clk shield  
R122  
NC  
HDCP_CTRL  
R124  
4K7 1/16W 5%  
2
U101  
0.1uF/16V  
Q101  
NC  
NC  
8
7
6
5
1
2
3
4
VCC A0  
WP A1  
SCL A2  
SDA VSS  
18  
17  
10  
9
2
1
13  
12  
5
R126  
R127  
R128  
R129  
R130  
R131  
10R 1/16W 5% RX0P  
10R 1/16W 5% RX0N  
10R 1/16W 5% RX1P  
10R 1/16W 5% RX1N  
10R 1/16W 5% RX2P  
10R 1/16W 5% RX2N  
DDC1_SCL  
DDC1_SDA  
RX0P  
RX0N  
RX1P  
RX1N  
RX2P  
RX2N  
2
2
2
2
2
2
DAT0+  
DAT0-  
DAT1+  
DAT1-  
DAT2+  
DAT2-  
DAT3+  
DAT3-  
DAT4+  
DAT4-  
DAT5+  
DAT5-  
clk+  
DDC_WP  
2
NC / M24C02-WMN6TP  
DVI_5V  
FB105  
CMVCC  
FB104  
4
21  
20  
23  
24  
300 OHM  
C121  
1000pF  
300 OHM  
D108  
BAT54C  
C122  
R132  
R134  
10R 1/16W 5% RXCP  
10R 1/16W 5% RXCN  
RXCP  
RXCN  
2
2
1000pF  
VCC3.3  
clk-  
JACK  
U107  
AZC099-04S  
ESD_VCC  
U105  
AZC099-04S  
ESD_VCC  
U106  
AZC099-04S  
ESD_VCC  
R133  
10K 1/16W 5%  
1
2
3
6
5
4
1
2
3
6
5
4
1
2
3
6
5
4
C117  
I/O1 I/O4  
GNDVDD  
I/O2 I/O3  
I/O1 I/O4  
GNDVDD  
I/O2 I/O3  
I/O1 I/O4  
GNDVDD  
I/O2 I/O3  
R136  
NC  
R137  
R138  
4K7 1/16W 5%  
NC  
U102  
DVI_HPD R135  
VGA_PLUGR139  
10K 1/16W 5%  
6K8 1/16W 5%  
C120  
C118  
C119  
4K7 1/16W 5%  
8
7
6
5
1
VCC A0  
2
WP  
SCL A2  
SDA VSS  
A1  
2
NC  
NC  
NC  
DET_CABLE  
DDC2_SCL  
DDC2_SDA  
3
4
候綼 U107  
候綼 U105  
候綼 U106  
2
DDC_WP  
GND POWERDGND  
NC / M24C02-WMN6TP  
41  
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CN301  
PA[0..9]  
PB[0..9]  
2
PA[0..9]  
2
PB[0..9]  
PB0 LVB3P  
PB1 LVB3M  
PB2 LVBCKP  
PB3 LVBCKM  
PB4 LVB2P  
PB5 LVB2M  
PB6 LVB1P  
PB7 LVB1M  
PB8 LVB0P  
PB9 LVB0M  
LVB0M  
LVB0P  
LVB1M  
LVB1P  
LVB2M  
LVB2P  
RXO0-  
RXO0+  
RXO1-  
RXO1+  
RXO2-  
RXO2+  
30  
29  
28  
27  
26  
25  
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
14  
13  
12  
11  
10  
9
PA0 LVA3P  
PA1 LVA3M  
PA2 LVACKP  
PA3 LVACKM  
PA4 LVA2P  
PA5 LVA2M  
PA6 LVA1P  
PA7 LVA1M  
PA8 LVA0P  
PA9 LVA0M  
LVBCKM RXOC-  
LVBCKP  
LVB3M  
LVB3P  
LVA0M  
LVA0P  
RXOC+  
RXO3-  
RXO3+  
RXE0-  
RXE0+  
LVA1M  
LVA1P  
RXE1-  
RXE1+  
LVA2M  
LVA2P  
LVACKM RXEC-  
LVACKP  
LVA3M  
LVA3P  
RXE2-  
RXE2+  
CMVCC  
RXEC+  
RXE3-  
RXE3+  
U301  
1
2
3
4
8
7
6
5
8
7
6
5
S
S
S
G
D
D
D
D
R303  
C302  
10K 1/16W 5%  
R304  
0.1uF/16V  
4
R302  
4K7 1/16W 5%  
PANEL_VCC  
3
2
1
NC\AO4411  
Q301  
AO3401  
47K 1/16W 5%  
C303  
NC  
R301  
330 OHM 1/4W  
C301  
CONN  
Q302  
2N3906S-RTK/PS  
C304  
NC  
2
PPWR_ON#  
PANEL_VCC  
0.1uF/16V  
R305  
0 OHM +-5% 1/8W  
+
C305  
3
D
100uF25V  
Change the type  
of resistor R301  
from 0805 to  
1206.  
1
2
S
G
AO3401L  
42  
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CMVCC  
VCC1.8  
C710  
0.1uF 16V  
FB702  
300 OHM  
CN701  
VCC3.3  
C705  
+
C704  
100uF25V  
1
SM340A  
D701  
2
3
4
5
6
7
8
9
MVCC  
0.1uF/16V  
CMVCC  
CMVCC  
BKLT-VBRI  
BKLT-EN  
PANEL_ID#  
Volume#  
Mute  
Q702  
KN2907AS  
R705  
10K 1/16W 5%  
R706  
R709  
NC  
R710 NC  
Volume#  
PANEL_ID#  
2
Q703  
KN2907AS  
2
BKLT-VBRI  
Mute  
2
adj_BACKLIGHT  
2
VCC3.3  
R708  
NC  
1K 1/16W 5%  
CONN  
C713  
NC  
C701  
0.1uF/16V  
C712  
NC  
lock type  
R701  
0R05 1/4W  
DGND  
1,2,3  
VCTRL  
DVI_5V DSUB_5V  
D702  
NC  
VCC3.3  
R702  
VCC3.3  
D702  
BAT54C  
External EDID  
MVCC  
MVCC  
Internal EDID BAT54C  
10K 1/16W 5%  
R703  
FB701  
NC  
BKLT-EN  
10K 1/16W 5%  
FB703  
300 OHM  
C711  
R701  
0R05 1/4W  
NC  
R708  
NC  
U701  
223  
C702  
NC  
0.1uF 16V  
VCC3.3  
TSUM5PFHL  
R704  
U701  
VIN  
on_BACKLIGHT  
2
3
2
TSUMU58EHL  
TSUMO58CWHL  
3.3 OHM 2W 223  
3.3 OHM 2W 252  
VOUT  
Q701  
4K7 1/16W 5%  
2N3904S-RTK/PS  
C707  
NC  
+
C706  
C708  
AP1117E33LA  
C709  
+
100uF25V  
0.1uF/16V  
0.1uF/16V  
100uF25V  
Both 223 and 252  
foot-print  
43  
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VCC1.8  
VDDC  
VDDP  
FB403  
VCC3.3 FB401  
AVDD VCC3.3 FB402  
VPLL  
VCC3.3  
4
VCC1.8  
0
OHM +-5% 1/8W  
C412  
300OHM  
300OHM  
1
VCC3.3  
C409  
C408  
0.1uF/16V  
+
C403  
C404  
C406  
C402  
C410 C411  
0.1uF/16V  
C407  
0.1uF/16V  
Del C209  
10uF/50V  
10uF/50V 0.1uF/16V  
C405  
0.1uF/16V 0.1uF/16V  
0.1uF/16V  
VDVI VMPLL VPLL AVDD VDDP  
VDDC  
0.1uF/16V  
0.1uF/16V  
0.1uF/16V  
VCC3.3 FB404  
300OHM  
VMPLL  
VCC3.3  
VDVI  
81  
VCC3.3  
VCTRL  
VCTRL  
R403  
OHM +-5% 1/8W  
54  
55  
58  
59  
60  
61  
62  
63  
64  
65  
PA0  
PA1  
PA2  
PA3  
PA4  
PA5  
PA6  
PA7  
PA8  
PA9  
0
LVA3P  
LVA3M  
LVACKP  
LVACKM  
LVA2P  
LVA2M  
LVA1P  
LVA1M  
LVA0P  
LVA0M  
23  
22  
20  
19  
21  
18  
17  
27  
28  
30  
31  
1
DSUB_R+  
RIN0P  
RIN0M  
GIN0P  
GIN0M  
SOGIN0  
BIN0P  
BIN0M  
HSYNC0  
C414  
0.1uF/16V  
C415  
0.1uF/16V  
1
1
1
1
1
1
1
1
1
1
DSUB_R-  
DSUB_G+  
DSUB_G-  
DSUB_SOG  
DSUB_B+  
DSUB_B-  
DSUB_H  
DSUB_V  
DDC1_SDA  
DDC1_SCL  
R402  
NC  
C413  
0.1uF/16V  
R404  
NC  
Q405  
NC  
VSYNC0  
DDCA_SDA/RS232_TX  
DDCA_SCL/rs232_RX  
For detect  
function,  
depend on  
DVI_5V  
LF_B  
3
4
6
7
9
10  
12  
13  
100  
1
R405  
NC  
1
1
1
1
1
1
1
1
1
1
RX2P  
RX2N  
RX1P  
RX1N  
RX0P  
RX0N  
RXCP  
RXCN  
DDC2_SDA  
R+  
R-  
G+  
G-  
B+  
B-  
CK+  
CK-  
PA[0..9]  
PB[0..9]  
PA[0..9]  
PB[0..9]  
3
3
DDC_WP  
1
FW  
R447  
R406  
67  
68  
69  
70  
71  
72  
73  
74  
77  
78  
PB0  
PB1  
PB2  
PB3  
PB4  
PB5  
PB6  
PB7  
PB8  
PB9  
Q401  
NC  
LVB3P  
LVB3M  
LVBCKP  
LVBCKM  
LVB2P  
LVB2M  
LVB1P  
LVB1M  
LVB0P  
LVB0M  
NC  
NC  
R407  
NC  
C416  
NC  
DDCD_SDA  
DDCD_SCL  
R446  
DDC2_SCL  
NC  
15  
AVDD  
REXT  
R401 390 OHM 1/16W  
TSUM5PFHL-LF  
0.1uF/16V 26  
C417  
36  
45  
46  
REFP  
REFM  
NC  
NC  
NC  
Internal EDID  
External EDID  
22K 1/16W 5%  
10K 1/16W 5%  
0.1uF/16V  
VCC3.3  
25  
41  
42  
EE_WP  
CMVCC  
R406  
NC  
NC  
NC  
NC  
NC  
NC  
GPIO_P23  
GPIO_P22  
C401  
0.22uF16V  
35  
47  
R445  
R409  
100R 1/16W 5%  
100R 1/16W 5%  
PANEL_ID#  
4
R407  
C416  
Q401  
R123  
R136  
U402  
GPIO_P15/PWM0  
PWM2/GPIO_P24  
WP  
R410  
R412  
10K 1/16W 5%  
1
2
3
4
8
7
6
5
37  
38  
39  
40  
LVDS  
CE# VDD  
SO HOLD#  
WP# SCK  
SDO  
SCZ  
SCK  
SDI  
85  
86  
6K8 1/16W 5%  
on_BACKLIGHT  
adj_BACKLIGHT  
4
4
GPIO_P12  
PWM1/GPIO_P25  
WP  
R413  
10K 1/16W 5%  
VSS  
SI  
87  
88  
89  
90  
2N3904S-RTK/PS  
10K 1/16W 5%  
10K 1/16W 5%  
RSTN  
GPIO_P00/SAR1  
GPIO_P01/SAR2  
GPIO_P02/SAR3  
48  
R415  
R416  
R417  
100R 1/16W 5%  
100R 1/16W 5%  
100R 1/16W 5%  
KEY1  
KEY2  
SST25VF010A-33-4C-SAE  
3
PPWR_ON#  
GPIO_P27/PWM1  
C419  
DET_CABLE  
1
84  
C418  
0.1uF/16V  
MVCC  
RST  
91  
92  
93  
94  
95  
99  
R419  
R420  
R422  
330R 1/16W 5%  
120R 1/16W 5%  
100R 1/16W 5%  
LED_GRN/BLUE  
LED_ORANGE  
GPIO_P06  
GPIO_P07  
PWM0/GPIO_P26  
GPIO_P13  
GPIO_P14  
GPIO_P16/PWM2  
10uF/50V  
R421  
100K 1/16W 5%  
R423  
HDCP_CTRL  
Mute  
1
4
0R05 1/16W 96  
R424  
R425  
100R 1/16W 5%  
100R 1/16W 5%  
R426  
CMVCC  
Max condition for LED:  
1. Vcc = 3.3 V  
2. Current = 12 mA  
FW need to be  
XIN  
C420 47pF  
C421 47pF  
POWER_KEY#  
VCC3.3  
X401  
14.31818MHz  
10K 1/16W 5%  
97  
XOUT  
BYPASS  
R427  
R428 100R 1/16W 5%  
C422 0.1uF/16V80  
NC/10K 1/16W 5%  
modified.  
R430  
0R05 1/16W  
U402  
44  
43  
R429  
R431  
100R 1/16W 5% MSCL  
100R 1/16W 5% MSDA  
Volume#  
4
GPIO_P10/I2C_MCL  
GPIO_P11/I2C_MDA  
For user data, WB, EDID,  
HDCP are saved in Flash.  
52  
53  
SST  
MODE[0]  
MODE[1]  
Q404  
NC  
For WB, EDID, HDCP are  
saved in Flash.  
PMC  
U402  
X'TAL  
Normal Function : CL = Cs + ((Cg*Cd)/(Cg+Cd))  
P.S : Assume Cs = 4 pF  
010A  
020A  
Befor AOC ID2007 OSD  
For ID2008  
X401  
CL of SPEC Cs and Cd (C420, C421)  
CN401  
NC  
CN402  
FB405 and C436  
 蔼 (93G 22-53B-H)  
瑉红 (93G 22-53-J)  
18 pF  
32 pF  
27 pF  
For Normal  
For Philips  
For DELL  
WAFER 2.0MM 6P  
NC  
56 pF  
VCC3.3  
VCC3.3  
NC  
WAFER 2.0MM 7P According to EMI  
C423  
0.22uF16V  
FPC CONN. 1.0mm 8P  
NC  
NC  
R440  
R441  
R442  
CN401  
U403  
R444  
R443  
3.9K OHM 1% 1/16W  
10K 1/16W 5%  
10K 1/16W 5%  
10K 1/16W 5%  
EE_WP  
8
7
6
5
1
2
3
4
CN402  
3.9K OHM 1% 1/16W  
VCC NC  
WC E1  
SCL E2  
SDA VSS  
1
2
3
4
5
6
7
8
MSCL  
MSDA  
POWER_KEY#  
KEY1  
1
2
3
4
5
6
KEY2  
KEY1  
POWER_KEY#  
LED_GRN/BLUE  
LED_ORANGE  
KEY_LEFT  
KEY_RIGHT  
KEY_AUTO  
R436  
R437  
R438  
R439  
NC  
NC  
NC  
NC  
M24C04-WMN6TP  
KEY2  
LED_ORANGE  
LED_GRN/BLUE  
7
LF_B  
C436  
NC  
U403  
NC  
R440 R441 R442  
C423  
C431  
C432  
C433  
C434  
R411  
10K 1/16W 5%  
C435  
R408  
FB405  
NC  
0.1uF/16V  
0.1uF/16V  
0.1uF/16V  
0.1uF/16V  
0.1uF/16V  
10K 1/16W 5%  
NC/CONN  
SST  
CN401  
CN402  
 
LAY  
CONN  
FFC CONNECTOR  
NC  
NC  
NC  
NC  
For user data, WB, EDID  
are saved in Flash.  
lock type  
PMC  
10K  
10K  
10K  
M24C04  
0.22uF/16V  
1/16W 1/16W 1/16W  
For WB, EDID are saved  
in Flash.  
5%  
5%  
5%  
44  
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Power board  
100 OHM 1/4W R918  
100 OHM 1/4W R919  
100 OHM 1/4W R920  
R941  
R945  
R944  
1K 1/4W  
R946  
1K 1/4W 1K 1/4W  
1K 1/4W  
+14V  
L904  
C912  
0.001uF  
1.1uH  
ZD902  
RLZ TE-11 16B  
BD901  
2KBP08M  
!
3
+
+
+
C922  
NC  
2
C917  
C918  
680uF/25V  
680uF/25V  
3
R943  
1K 1/8W  
!
4
T901  
9
1
Q903  
PMBS3904  
ZD901  
D906  
SP10100  
NC NC  
C905  
+
R904  
R905  
R908  
100uF/450V  
300K OHM 1/4W NC  
C906  
1500pF 2KV  
100K OHM 2W  
C932  
R939  
NC  
5
7
R935  
100 OHM 1/4W  
C929  
!
0.001uF  
C938  
1500pF/1KV  
R932  
300K OHM 1/4W R906  
NC  
D900  
FR107  
F903  
6
4
11  
10  
R961 100 OHM 1/40W.001uF  
C904  
NC  
+5V  
L903  
1.1uH  
R962 100 OHM 1/4W  
+
+
C940  
1000uF/16V  
FUSE  
6
1
C939  
1000uF/16V  
+
C907  
0.1uF  
ZD906  
D901  
FR103  
R909  
5.1 OHM 1/4W  
8
C915  
470uF/16V  
NC  
NC  
R907  
NC  
NC  
!
!
D907  
NC  
L901  
3
4
2
1
R940  
33K 1/10W  
+
C908  
22uF/50V  
1
3
R924  
3
12  
ZD922  
RLZ5.1B  
150R 1/8W  
R933  
300K OHM 1/4W  
D905  
SP1060  
ZD921  
RLZ18B  
!
POWER X'FMR  
4.0mH  
D903  
R927  
IC901  
LL4148  
3.6K OHM 1% 1/10W  
!
C903  
0.47uF/275V  
4
3
2
1
5
!
RT  
VCC  
COMP VCC  
GND OUT  
NC  
CS  
R910  
6
7
8
Q901  
R925  
1K 1/8W  
2SK2645-54MR  
IC903  
PC123X2YFZOF  
D916  
10R 1/4W  
D915  
LL4148  
!
LL4148  
ZD905  
NC  
R938  
LD7552BPS  
R915  
100K OHM 1% 1/8W  
10K 1/8W  
NC  
FB901  
BEAD  
C924  
0.1uF  
R912  
! ! !  
R903  
R902  
R901  
R914  
0.43 OHM 2W  
R926  
1K 1/10W 1%  
220 OHM 1/4W  
R942  
680K OHM 1/4W 680K OHM 1/4W680K OHM 1/4W  
IC904  
KIA431A-AT/P  
1K 1/10W 1%  
C928  
0.001uF  
C909  
470pF/25V  
C925  
NC  
R930  
VAR901  
2.43K OHM 1% 1/10W  
NC  
NC  
NR901  
NTCR  
14  
13  
12  
11  
10  
9
C921  
0.0047UF/400V  
!
F901  
FUSE  
USB CTRL  
!
t
+14V  
8
7
6
5
4
3
GND1  
GND  
HS5  
+5V  
DIM  
HEAT SINK(U601)  
1
2
1
2
ON/OFF  
SW901  
SW  
2
1
VOL  
MUTE  
!
!
C902  
!
C901  
C916  
0.1uF  
C930  
0.1uF  
HS2  
HS1  
HEAT  
CN902  
HARNESS  
HEAT SINK(D906)  
0.001uF/250V  
0.001uF/250V  
1
2
1
2
钡竲   
э
HS3  
HS4  
HEAT SINK(D905)  
HEAT SINK(Q901)  
1
2
1
2
2
1
CN901  
SOCKET  
!
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1
2
HV  
LV  
2
E
B
C838  
1500pF  
T801  
POWER X'F8MR  
3
D805  
BAW56  
1
R817  
10K 1/10W 1%  
R821  
1K 1/10W 1%  
C
1
2
CN801  
CONN  
R856  
2
F801  
0R05 1/4W  
15 OHM 1/4W  
C819  
0.0022uF  
4
3
5
3
+14V  
C801  
1
C802  
470uF/25V  
C824  
0.1uF  
D810  
NC  
5pF/6KV  
+
6
7
R801  
D801  
R819  
R855  
9
1.5K OHM 1% 1/10W BAV99  
R804  
3.6K OHM 1% 1/10W  
15 OHM 1/4W  
100R 1/8W  
Q802  
Q801  
PMBS3904  
AM9945N-T1-PF  
5
R823  
4
3
2
1
G
S
G
S
D
D
D
D
3.6K OHM 1% 1/10W  
Q808  
PDTA144WK  
6
7
8
1
2
HV  
LV  
C839  
1500pF  
Q805  
PDTC144WK  
Q804  
PMBS3906  
1
R828  
R822  
R839  
10 OHM 1/8W  
10K 1/10W 1%  
1K 1/10W 1%  
CN802  
CONN  
ON/OFF  
2
C807  
0.1uF/25V  
C823  
C841  
1500pF  
3
0.0022uF  
D811  
NC  
T802  
POWER X'F8MR  
1
2
1
D802  
Q811  
PMBS3904  
R858  
R814  
15 OHM 1/4W  
1.5K OHM 1% 1/10W BAV99  
4
3
5
C811  
5pF/6KV  
C803  
470uF/25V  
C805  
0.1uF  
+
6
7
R850  
10 OHM 1/8W  
9
1
2
HV  
LV  
Q812  
PMBS3906  
1
D812  
NC  
1
B
E
R857  
15 OHM 1/4W  
DIM  
3
D808  
BAW56  
2
R834  
10K 1/10W 1%  
R812  
1K 1/10W 1%  
C
CN804  
CONN  
Q803  
AM9945N-T1-PF  
5
2
4
3
2
1
C816  
0.0022uF  
G
S
G
S
D
D
D
D
R827  
1K 1/10W 1%  
3
6
7
8
C840  
1500pF  
1
D804  
R816  
1.5K OHM 1% 1/10W BAV99  
Q806  
PMBS3904  
R853  
68K OHM 1% 1/10W  
D813  
NC  
1
2
HV  
LV  
R833  
10K 1/10W 1%  
R809  
1K 1/10W 1%  
CN803  
CONN  
R813  
10K 1/10W 1%  
2
R808  
10K 1/10W 1%  
C815  
3
0.0022uF  
D817  
LL4148  
1
Q810  
RK7002  
R815  
D803  
1.5K OHM 1% 1/10W BAV99  
R811  
2.4K OHM 1% 1/10W  
D809  
LL4148  
R841  
68K OHM 1% 1/10W  
R829  
22R 1/8W  
R802  
NC  
R851  
9.1K 1%  
C806  
0.01uF  
R825  
22R 1/8W  
R837  
47K 1/8W  
C822  
R832  
R806  
1uF/25V  
10K 1/10W 1%  
68K OHM 1% 1/10W  
D814  
LL4148  
IC801  
1
2
3
4
5
6
7
8
16  
15  
14  
13  
12  
11  
10  
9
1IN+  
1IN-  
2IN+  
2IN-  
REF  
FEEDBACK  
DTC OUTPUT CTRL  
CT  
RT  
GND  
C1  
R818  
1K 1/10W 1%  
D806  
LL4148  
VCC  
C2  
E2  
E1  
C821  
0.1uF/25V  
TL494IDR  
R861  
130K OHM 1% 1/10W  
R854  
68K OHM 1% 1/10W  
R810  
51K OHM 1% 1/8W  
Q809  
RK7002  
R803  
Q807  
PMBS3904  
R807  
47K 1/10W  
1M 1/10W 5%  
C825  
0.1uF/25V  
R820  
47K 1/10W  
R831  
C820  
2.4K OHM 1% 1/10W 220pF  
R826  
1K 1/10W 1%  
R824  
1K 1/10W 1%  
C834  
R835  
C845  
2.2uF/16V  
R862  
1M 1/10W 5%  
0.1uF/25V  
1M 1/10W 5%  
46  
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+5V_Audio  
FB602  
+5V  
add FB602  
1
1
2
2
+5V_Audio  
BEAD  
FB601  
+
C602  
BEAD  
R608  
100uF/25V  
CN601 change to  
V type  
0R05 1/8W  
U601  
IC with Heat-sink(90G6258-2)  
CN602  
1
2
3
5
4
EUA6021AIIT1  
Lin  
R606  
R607  
10K 1/10W 5%  
10K 1/10W 5%  
C606 0.47uF/16V  
C607 0.47uF/16V  
add C617 C618  
CN601  
Rin  
8
12  
10  
LOUT+  
LOUT-  
ROUT+  
ROUT-  
4
3
2
1
LIN+  
LIN-  
LOUT+  
LOUT-  
PHONEJACK  
C617 0.47uF/16V  
7
4
5
20  
2
RIN+  
RIN-  
ROUT+  
ROUT-  
C618 0.47uF/16V  
+5V_Audio  
CONN  
16  
15  
19  
13  
BYPASS  
CN604 ㎝  
  Layout  
CN603  
BTL mode:Low  
SE mode:High  
Mute mode:Low  
14  
18  
SHUTDOWN# FADE#  
SE/BTL#  
+5V_Audio  
VOLUME  
NC  
change R609  
+5V_Audio  
R610 R611 R612  
add R616  
CN604  
EAR-LOUT  
1
2
3
4
Q601  
56G 616 40  
+5V_Audio  
MUTE  
EAR-ROUT  
SEL-BTL  
PMBS3904  
R616 1K 1/10W 5%  
10K 1/10W 5%  
R605  
change R601 R613  
NC/CONN  
SEL-BTL  
CN603  
1
7
6
2
3
4
5
SEL-BTL  
330 OHM +-5% 1/10W  
R613  
EAR-LOUT  
100uF/25V  
C613  
C614  
R603  
1K 1/10W 5%  
LOUT+  
R604  
100K OHM 1/10W  
EAR-ROUT  
100uF/25V  
R601  
PHONEJACK  
330 OHM +-5% 1/10W  
ROUT+  
R617 1K 1/10W 5%  
Q602  
PMBS3904  
VOL  
C605  
C615  
NC  
C616  
1uF/25V  
R614  
1K 1/10W 5%  
R615  
1K 1/10W 5%  
change R603 R604  
add Q602 R617  
NC  
47  
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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  
48  
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