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Acer X203H
Service Guide
1
Service Guide Version and Revision
Version Release Date Revision History TPV model
A00 Nov.-21-2008 Initial Release TARSNDD8Y1ABNN
2
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 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 Remind you to do specific actions relevant to the accomplishment of procedures.
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
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, uses 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. 5A.
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
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.
5
Table Of Contents
Chapter 1 Monitor Features ................................................ 7
Introduction ............................................. 7
Electrical Requirements ............................................. 8
LCD Monitor General Specification ............................................. 9
LCD Panel Specification ............................................. 10
Factory Preset Timing ............................................. 13
Monitor Block Diagram ............................................. 14
Main Board Diagram ............................................. 15
Software Flow chart ............................................. 16
Main Board Layout ............................................. 18
Installation ............................................. 19
Chapter 2 Operating Instructions ............................................. 20
External Controls ............................................. 20
Front Panel Controls ............................................. 20
eColor Management (OSD) ............................................. 21
How to Adjust a Setting ............................................. 22
How To Optimize The DOS-Mode ............................................. 25
Enter into the factory mode ............................................. 25
Chapter 3 Machine Disassembly ............................................. 26
Chapter 4 Troubleshooting ............................................. 29
Chapter 5 Connector Information ............................................. 35
Chapter 6 FRU (Field Replacement Unit) List ............................................. 36
Exploded Diagram ............................................. 36
Chapter 7 Schematic Diagram ............................................. 40
6
Monitor Features Chapter 1
Introduction
Scope
This specification defines the requirements for the 20.0" 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 X203H
Panel LTM200KT01 A02(002) SZ SEC
Signal Interface D-Sub 15pin
Sync Type Separate / Compatible
Color Temp User Adjust Support
DDC DDC2B
Speaker Yes
Headphone Jack No
Microphone Jack No
USB Hub Not support
Tilt / Swivel No/No
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 40 cm for LCD performance, 20 cm for LCD failures
Warm up time 30 minutes
Analog Input signal 700 mVss
Control temperature 6500° K
User brightness control The value under user mode
Set to factory preset value, which allows that the brightest two of
User contrast control 32 linear distributed gray-scales (0 700mv) can be
distinguished.
Picture position and size Factory preset value
Viewing angle 90° H and V
AC Supply voltage 220V± 5, 50±3Hz
Ambient temperature 20+5
Humidity 50% ± 10%
Display mode 1600 x 900, 60 Hz, all white
e-color mode Set to "User" 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 442.8 (W) × 249.075(H)
Pixel pitch 0.2768(H) x 0.2768(W)
LCD Panel
Contrast Ratio 10000 : 1 Max(ACM)
Response time 5ms
Luminance of White 300(Typ.) cd/
Separate Sync. H/V TTL
Input H-Frequency 30kHz 80kHz
V-Frequency 56-75Hz
Viewing angle (H)90 (V) 90(Type)
Display Colors 16.7M
Display mode 1600 x 900 @60Hz
ON Mode < 56W
EPA ENERGY STAR®
OFF Mode < 1W
Set to factory preset value, which allows that the brightest two of 32 linear distributed
Contrast control
gray-scales (0 700mv) can be distinguished.
Power Source 100 V ~ 240 V50 ± 3Hz, 60 ± 3Hz
Operating Temp: 0° to 40°C
Environmental
Storage Temp: -20° to 60°C
Considerations
Operating Humidity: 20% to 85%
Peak surge current < 55A peak at 240 VAC and cold starting
No advance effects (no loss of information or defect) with a maximum of 1 half-wave
Power line surge
missing per second
9
LCD Panel Specification
General Specifications
Block Diagram
TFT LCD Module
10
Back light Unit
Electrical Characteristics
11
Optical Specifications
12
Factory Preset Timing
460BVESA MODES
Horizontal Vertical
Nominal
Nominal Nominal
Sync Sync Pixel
Mode Resolution Total Frequency Freq.
Polarity Polarity Clock
+/- 0.5kHz +/- 1 Hz
(MHz)
640x480@60Hz 800 x 525 31.469 N 59.941 N 25.175
VGA 640x480@72Hz 832 x 520 37.861 N 72.809 N 31.500
640x480@75Hz 840 x 500 37.500 N 75.000 N 31.500
800x600@56Hz 1024 x 625 35.156 P 56.250 P 36.000
800x600@60Hz 1056 x 628 37.879 P 60.317 P 40.000
SVGA
800x600@72Hz 1040 x 666 48.077 P 72.188 P 50.000
800x600@75Hz 1056 x 625 46.875 P 75.000 P 49.500
1024x768@60Hz 1344 x 806 48.363 N 60.004 N 65.000
XGA 1024x768@70Hz 1328 x 806 56.476 N 70.069 N 75.000
1024x768@75Hz 1312 x 800 60.023 P 75.029 P 78.750
1152x864@75Hz 1600x900 67.5 P 75 P 108.000
1280x720@60Hz 1650x750 44.955 P 59.940 P 74.176
SXGA 1280x960@60Hz 1800x1000 60 P 60 P 108.000
1280x1024@60Hz 1688x1066 63.981 P 60.020 P 108.000
1280x1024@75Hz 1688x1066 79.976 P 75.025 P 135.000
WXGA 1360x768@60Hz 1792x795 47.712 N 60.015 N 85.500
1600x900@60Hz 2122x934 55.99 P 59.946 N 118.25
WXGA+
1600x900@60Hz 1760x926 55.540 P 59.978 N 97.750
461BIBM MODE
DOS 720x400@70Hz 900 x 449 31.469 N 70.087 P 28.322
462BMAC MODES
2BVGA 640x480@67Hz 864 x 525 35.000 N 66.667 N 30.240
SVGA 832x624@75Hz 1152 x 667 49.722 N 74.55 N 57.28
SXGA 1152x 870@75Hz 1568x909 68.700 75.000 100.00
ACER SPECIAL MODE
Acer 1280x800@60Hz 1680x831 49.702 P 59.810 N 83.500
13
Monitor Block Diagram
The LCD MONITOR will contain a main board, a power board and a 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
Main Board
Power Board
AC-IN
100V-240V Key board
D-SUB Signal
14
Main Board Diagram
Panel Interface
(CN301)
Scalar IC NT68667FG/C
Keypad Interface
(CN402)
(Include MCU, ADC, OSD)
(U401)
H sync
V sync
RGB
D-Sub
Flash Memory Connector
PM25LV010A-100SCE Crystal
(CN101)
(U402) 12MHz
(X401)
15
Software Flow Chart
1
Y
2 3
N
N
4
N
5
Y
6
N
7 8
Y
Y 9
N
10 11
Y
N N
12 13
Y Y
N
14 15 16
Y
17
N
18 19
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 Description
U401 IC NT68667FG/C QFP-128L CN402 WAFER
U703 IC AP1117D33L-13 TO252-3L DIODES CN701 WAFER 9P RIGHT ANELE PITCH
U103 IC AZC099-04S SOT23-6L CN301 CONNECTOR
U104 IC AZC099-04S SOT23-6L X401 CRYSTAL 12MHz HC-49US ARG6-120
D-SUB 15PIN VERTICAL CONN WITH
U402 IC PM25LV010A-100SCE SOIC-8 CN101
SCREW
18
Installation
To install the monitor on your host system, please follow the steps below:
Steps
19
Operating Instructions Chapter 2
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 Switch:
To turn ON or OFF the power.
2. Power LED:
Lights up to indicate the power is turned ON.
3. Empowering / 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 to select scenario mode.
4. 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.
5. < / >
1) Press < or > to select the desired function. Press < or > to change the settings of the current function.
2) Press < or > to adjust the volume up or down (Only for Audio).
6. MENU / ENTER:
Activate OSD menu when OSD is OFF or activate/de-activate adjustment function when OSD is ON.
20
eColor Management (OSD)
Operation instructions
Step 1: Press " Key" to open the Acer e-Color Management OSD and access the scenario modes
Step 2: Press "<" or ">" to select the mode
Step 3: Press "Auto Key " to confirm the mode and run Auto Adjust
21
How to Adjust a Setting
22
Adjusting the picture
23
24
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.
Enter into the factory mode:
Turn off the power, press the "e-color" and turn the power on. The factory OSD will be at the left top of the panel.
25
Machine Disassembly Chapter 3
This chapter contains step-by-step procedures on how to disassemble the monitor for
maintenance.
The tool for disassembly is as follows:
Screwdriver, hexagonal screwdriver, Putty knife.
Disassembly Procedure
1. Remove the hinge assembly.
2. Remove the rear cover and bezel.
The arrows in blue are the hook that we should put attention to when remove the rear cover. Use plastic
putty knife to release hooks, then you can easily remove the rear cover.
26
3 Remove the lamp connectors and remove the screws to remove the panel. Put attention to the LVDS cable.
27
4. Remove the screws to remove the main board and power board.
5. The panel
28
Chapter 4
Troubleshooting
This chapter provides troubleshooting information for the X203H:
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
OK NG Reinsert or check the
power section
Measure U703 Pin2=3.3V,
NG
OK Check U703, C706 and C707
Check if X401 oscillate waveforms are
normal
NG
Replace X401 OK
Replace U401
29
2. No Picture (LED is orange)
No picture
The button if under NG NG
X401 oscillate
control waveform is normal Replace X401
OK
OK
Check reset circuit of NG Check Correspondent
U401 is normal component
Measure U703 Pin2=3.3V,
OK
Replace U401
OK
X401 oscillate NG
waveform is normal
Check U703, C706 and C707
NG
Replace X401
OK
Check HS/VS from
CN101 is normal
NG
Check Correspondent
OK component
Replace U401
30
3. Panel Power Circuit
White screen
NG
Measure Q302 base X401 oscillate
is low level? waveform is normal
OK NG Replace X401
OK
Check CN301is solder
and Q302,Q301 is OK? Check reset circuit of
U401 is normal
NG Check Correspondent
NG
Check Correspondent
component.
component. OK
OK
Replace U401
Replace PANEL
31
4. Key Board
OSD is unstable or not working
NG
Is Key Pad Board connecting normally? Connect Key Board
Y
NG
Is Button Switch normally? Replace Button Switch
Y
NG
Is Key Pad Board normally? Replace Key Board
Y
Check Main Board
32
5. Power Board
1) No power
Check F801 = 14.5V
NG
Check AC line volt 110V or 220V
OK NG
Check AC input
Check the voltage of C907 (+)
OK NG
Check bridge rectified circuit and F901 circuit
Check start voltage for the pin8 of U901
NG
OK Check R908, R911 and Change U901
Check the auxiliary voltage is bigger than
11V and smaller than 25V
OK NG 1) Check U901
2) Check R913, D904 circuit
Check U901 pin5 PWM wave
OK
NG
Check U901
Check Q901, U902, U903, D901, D902, D906,ZD901,Q904
33
2.) No Backlight
Check F801 = 14.5V
OK NG
Check adapter or MB
Check ON/OFF signal
OK NG
Check Interface board
Check U801 PIN12=14.5V
OK
NG
Change Q802, Q804
Check U801 PIN10, 9 have the output of square wave at short time
NG
OK Change U801
Check Q803, Q812 PIN5, 6, 7, 8 have the output of square wave at short time.
NG
OK
Check Q801, Q803, Q805, Q807, Q812, Q813
Check the output of PT801
OK
NG
Change PT801
Check connecter & lamp
34
Connector Information Chapter 5
35
FRU (Field Replaceable Unit) List Chapter 6
This chapter gives you the FRU (Field Replaceable Unit) listing in global configurations of X203H. 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.
Exploded Diagram (Model: X203H)
36
ITEM PART NO. DESCRIPTION Q`TY
1 BEZEL L20WA-8ACER3-S4 X203H A34G1078 RXA1B0130 1
2 REAR COVER X203H A34G1079 RX 4B0100 1
3 KEY BUTTON Q33G0237 RX 1L0100 1
4 LED LENS A33G0270 1 1L0100 1
5 MAINFRAME A15G0492101401 1
6 SHIELD A85G0135101 1
7 HINGE COVER L A33G0271 RX 1L0200 1
8 HINGE COVER R A33G0271 RX 2L0200 1
9 STAND FRONT A34G0473 RX 1B0100 1
10 STAND REAR A34G0474 RX 1B0100 1
11 BASE A34G0475 RX 1B0130 1
12 HINGE A37G0050 2 1
13 BASE BKT A15G0263201 1
14 RUBER FOOT-1 A12G0006 1 1
15 RUBER FOOT-2 A12G0007 1 2
16 BASE BUTTON A33G0266 RX 1L0100 1
S1 SCREW 0M1G1730 6120 4
S2 SCREW 0M1G 130 6120 2
S3 SCREW 0Q1G 140 10120 6
S4 SCREW 0M1G 140 8125 4
S5 SCREW 0Q1G 130 8120 8
37
Part List
Above picture show the description of the following component.
Picture Description Part No.
Main Frame A15G0492101401
Bezel A34G1078 RXA1B0130
Panel 750GLS200KT112N000
Power Board PWPC8A41EQI3
38
Main Board CBPCRNDABQN
Key Board KEPC7QK1
Stand Front A34G0473 RX 1B0100
Base A34G0475 RX 1B0130
Stand Rear A34G0474 RX 1B0100
Hinge A37G0050 2
39
Schematic Diagram Chapter 7
Main Board
FB102
VGA_B+ 1 2 R105 100R 1/16W 5% C102
BEAD 0.047uF DSUB_B+
H_Sy nc R102 R103 1K 1/16W 5%
V_Sy nc DSUB_H
100R 1/10W 5% R104 1K 1/16W 5% R108 C105
DSUB_V
5pF/50V
E5VCC 75R 1/16W 5%
R106 R107 C103 C104
VGA_B- R109 100R 1/16W 5% C106
DSUB_B-
2K2 1/16W 5% 2K2 1/16W 5% 22pF 22pF 0.047uF
5V_ESD
U104
DSUB_SDA 6 1 H_Sy nc R110 470R 1/16W 5% C107
I/O4 I/O1 DSUB_SOG
R143 R144 5 2 FB103 1000pF
4K7 1/16W 5% 4K7 1/16W 5% CN101 DSUB_SCL 4 VDDGND 3 V_Sy nc
I/O3 I/O2 VGA_G+ 1 2 R111 100R 1/16W 5% C108
16
DSUB_G+
DSUB_5V BEAD 0.047uF
100R 1/16W 5% 10 C112 AZC099-04S
R101 DSUB_SCL 15 5 VGA_PLUG NC R112 C109
DDC1_SCL DSUB_5V
9 5pF/50V
14 4 75R 1/16W 5%
8 VGA_B- U1 03
13 3 VGA_B+ VGA_G- R114 100R 1/16W 5% C110
VGA_G- DSUB_G-
7 ZD104 ZD105 0.047uF
DSUB_SDA 12 2 VGA_G+ RLZ5.6B
DDC1_SDA RLZ5.6B U103
R113 6 VGA_R- 5V_ESD
100R 1/16W 5% 11 1 VGA_R+ VGA_R+ 3 4 VGA_B+
2 I/O2 I/O3 5 FB101
DB15 VGA_G+ 1 GNDVDD 6
I/O1 I/O4
17
VGA_R+ 1 2 R115 100R 1/16W 5% C111
DSUB_R+
C101 BEAD 0.047uF
AZC099-04S NC
R116
C113
R141 1K 1/16W 5% U101 75R 1/16W 5% 5pF/50V
VGA_DET
VGA_R- R117 100R 1/16W 5% C114
DSUB_R-
0.047uF
Modify in 2008/01/28
ESD_5V 5V_ESD 5VCC
FB105 R142
1K 1/16W 5%
1 2
120 OHM
Modify in 2008/03/07
T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Acer Size B
G3108-1-X-X-17-081119 TPV MODEL Acer X203H Analog only Rev 1
Key Component 2.0.Input PCB NAME
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Date Wednesday , Nov ember 19, 2008 Sheet 2 of 5
40
CN301
30
T0M
29
T0P
28
T1M
27
T1P
26
T2M
25
T2P
24
23
TCLK1M
22
TCLK1P
21
T3M
20
T3P
19
T4M
18
T4P
17
16
T5M
15
T5P
14
13
T6M
+5V 12
T6P
11
TCLK2M
10
TCLK2P
9
T7M
8
T7P
R303 C302 7
6
10K 1/16W 5% 0.1uF/16V 5
R304 4
PANEL_VCC 3
Q301 2
47K 1/16W 5% AO3401 1
C303
R307
47K 1/16W 5% NC
R301 C301 CONN
Q302 C304
PPWR_ON# PANEL_VCC 330 OHM 1/4W 0.1uF/16V
2N3904S-RTK/PS NC
R305
R306 C306
10K 1/16W 5% 0.1uF 16V