Acer X241W User manual

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Acer X241W
Service Guide
Service guide files and updates are available on the
CSD web: for more information,
Please refer to http://csd.acer.com.tw/
100% Recycled Paper
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Copyright
Copyright © 2007by 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 expresses 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, of its dealer) assumes the entire cost of all necessary servicing, repair,
and any incidental or consequential damages resulting from any defect in the software.
Acer is a registered trademark of Acer Corporation.
Intel is a registered trademark of Intel Corporation.
Pentium and Pentium II/III are trademarks of Intel Corporation.
Other brand and product names are trademarks and/or registered trademarks of their respective holders.
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Conventions
The following conventions are used in this manual:
Screen messages Denotes actual messages that appear on
screen
Note Gives bits and pieces of additional information
related to the current topic.
Warning Alerts you to any damage that might result
from doing or not doing specific actions.
Caution Gives precautionary measures to avoid
possible hardware or software problems.
Important Reminds you to do specific actions relevant to
the accomplishment of procedures.
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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 BASICCONFIGURATION
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 not 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.
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WARNING: (FOR FCC CERTIFIED MODELS)
NOTE: this equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy,
and if not installed and used in accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not occur in a particular installation. If this
equipment does cause harmful interference to radio or television reception,
Which can be determined by turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
1. Reorient or relocate the receiving antenna.
2. Increase the separation between the equipment and receiver.
3. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
4. Consult the dealer or an experienced radio/TV technician for help.
NOTICE:
1. The changes or modifications not expressly approved by the party responsible for compliance could void
the user’s authority to operate the equipment.
2. Shielded interface cables and AC power cord, if any, must be used in order to comply with the emission limits.
3. The manufacturer is not responsible for any radio or TV interference caused by unauthorized modification to
this equipment. It is the responsibility of the user to correct such interference.
As an ENERGY STAR® Partner our company has determined that this product meets the ENERGY STAR®
guidelines for energy efficiency.
WARNING:
To prevent fire or chock hazard, do not expose the monitor to rain or moisture. Dangerously high voltages are
present inside the monitor. Do not open the cabinet. Refer servicing to qualified personnel only.
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PRECAUTIONS
zDo not use the monitor near water, e.g. near a bathtub, washbowl, kitchen sink, laundry tub,
Swimming pool or in a wet basement.
zDo 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 manufacture or
sold with the monitor. If you mount the monitor on a wall or shelf, use a mounting kit approved by the
manufacture and follow the kit instructions.
zSlots and openings in the back and bottom of the cabinet area 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.
zThe 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.
zThe 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.
zUnplug 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.
zDo not overload power strips and extension cords. Overloading can result in fire or electric shock.
zNever 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.
zDo 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.
zTo ensure satisfactory operation, use the monitor only with UL listed computers which have appropriate
configured receptacles marked between 100-240V AC, Min. 3.5A.
zThe wall socket shall be installed near the equipment and shall be easily accessible.
zFor use only with the attached power adapter (output 12V DC) which have UL,CSA listed license
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SPECIAL NOTES ON LCD MONITORS
The following symptoms are normal with LCD monitor and do not indicate a problem.
NOTES
zDue 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.
zYou may find slightly uneven brightness in the screen depending on the desktop pattern you use.
zThe 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.
zDue 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 FEATURE ……………………………………………………………..9
Chapter 2 OPERATING INSTRUTION ……………………………………………………..31
Chapter 3 MACHINE ASSEMBLY…………………………………………………………...37
Chapter 4 TROBLE SHOOTING …………………………………………………………….53
Chapter 5 CONNECTOR INFORMATION…………………………………………………..56
Chapter 6 FRU LIST…………………………………………………………………………...58
Chapter 7 SCHEMATIC DIAGRAM …………………………………………………………62
Chapter 8 POWER BOARD INFORMATION.................................................................70
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Chapter 1
Monitor Feature
Driving system TFT Color LCD
Size 24"
Pixel pitch 0.27(H) * 0.27(V)mm
Viewable angle 178(H) x 178 (V) degree
Brightness Sumsungl: 500 cd/m2(typ)
Contrast Ratio Sumsung: 1000:1 (typ)
LCD Panel Response time 16ms (Tr+Tf)
Video R, G, B Analog, DVI box (optional)
Input Separate Sync H/V TTL
H-Frequency 31-81KHZ
V-Frequency 56-75HZ
Display Color 16.7 million Colors
Maximum Dot Clock ® 162MHz
Max Resolution 1920x1200 @60HZ
Plug & Play VESA FPMPMI
ON Mode <90W
EPA ENERGY STAY OFF Mode <2W
Audio output Rated Power 2.0W rms(Per channel)
Input Connector D-Sub 15 pin, DVI connector (on DVI box)
Input Video Signal Analog : 0.7Vp-p,75OHM
Horizontal : 518.4 mm
Screen Size (Active) Vertical : 324 mm
Power Source 90~264 Vac, 47~63HZ
Environmental
Considerations
Operating Temp: 5 to 40 degree ;
Storage Temp: -20 to 60 degree ;
Operating Humidity: 20% to 80%
Weight (N.W.) 7.0kg
Dimension 572(W) x 454.1(H) x 326(D) mm
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Switch
* Power Switch
* MENU / EXIT
* /Volume
* /Volume
* AUTO / ENTER
External Controls :
* Contrast/brightness
* Focus
* Clock
* H.Position
* W.Position
* Language
* OSD Color temperature
* OSD Position & Timeout
* Auto Config
* Input
* Information
* Reset
* Exit
Regulatory Compliance cUL, FCC, TUV, CE, TCO03.
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Timings
The product has 34 memory modes in total. 26 modes are preset and 8 modes are user definable.
MODE NO. 1 2 3 4
RESOLUTION 720 x 400 640 x 480 640x480 640 x 480
Dot clock(MHz) 28.321 25.175 30.24 31.5
f h 31.469kHz 31.469kHz 35.0kHz 37.861kHz
H-Total ( us ) 31.78(900dots) 31.778 (800 dots) 28.571(864 dots) 26.413 (832 dots)
H-Sync ( us ) 3.813(108dots) 3.813 (96 dots) 2.116 (64 dots) 1.270(40 dots)
H-B-P ( us ) 1.907(54dots) 1.907 (48 dots) 3.175 (96 dots) 4.064(128 dots)
H-Active ( us ) 25.42(720dots) 25.422 (640 dots) 21.164 (640 dots) 20.317(640 dots)
H-F-P ( us ) 0.636(18dots) 0.636 (16 dots) 2.116 (64 dots) 0.762(24 dots)
f v 70Hz(70.087) 60Hz (59.940) 66.7 HZ (66.667) 72.809Hz
V-Total (ms ) 14.27(449 lines) 16.683 (525 lines ) 15.000 (525 lines ) 13.735(520 lines)
V-Sync ( ms ) 0.064(2 lines) 0.064 (2 lines ) 0.086 (3 lines ) 0.079(3 lines)
V-B-P (ms ) 1.112(35 lines) 1.049 (33 lines ) 1.114 (39 lines ) 0.739(28 lines)
V-Active ( ms ) 12.71(400 lines) 15.253 (480 lines ) 13.714 (480 lines ) 12.678(480 lines)
V-F-P ( ms ) 0.384(12 lines) 0.317 ( 10 lines) 0.086 (3 lines ) 0.237(9 lines)
SYNC. H/V -/+ - / - +/+ -/-
POLARITY Or -/-
SEP . SYNC Y Y Y Y
MODE NO. 5 6 7 8
RESOLUTION 640 x 480 800 x 600 800 x 600 800 x 600
Dot clock(MHz) 31.5 36 40 49.5
f h 37.500kHz 35.16kHz 37.879kHz 46.875kHz
H-Total ( us ) 26.667(840 dots) 28.44(1024 dots) 26.40 (1056 dots) 21.333 (1056dots)
H-Sync ( us ) 2.032 (64 dots) 2.00(72 dots) 3.200 (128 dots) 1.616 (80 dots)
H-B-P ( us ) 3.810 (120 dots) 3.56(128 dots) 2.200 ( 88 dots) 3.232 (160 dots)
H-Active ( us ) 20.317 (640 dots) 22.22(800 dots) 20.00 ( 800 dots) 16.162 (800 dots)
H-F-P ( us ) 0.508 (16 dots) 0.67(24 dots) 1.000 (40 dots) 0.323 (16 dots)
f v 75Hz (75) 56.25 60Hz (60.316) 75Hz (75.000)
V-Total (ms ) 13.333 (500 lines) 17.78(625 lines) 16.58 (628 lines) 13.333 (625lines)
V-Sync ( ms ) 0.080 (3 lines) 0.06(2 lines) 0.106 (4 lines) 0.064 (3 lines)
V-B-P (ms ) 0.427 (16 lines) 0.63(22 lines) 0.607 (23 lines) 0.448 (21 lines)
V-Active ( ms ) 12.80 (480 lines) 17.07(600 lines) 15.84 (600 lines) 12.80 (600lines)
V-F-P ( ms ) 0.027 ( 1 line ) 0.03( 1 line) 0.026 (1 line ) 0.021 (1 line )
SYNC. H/V - / - +/+ + / + + / +
POLARITY
SEP . SYNC Y Y Y Y
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MODE NO. 9 10 11 12
RESOLUTION 800 x 600 832 x 624 1024 x 768 1024 x 768
Dot clock(MHz) 50 57.283 65 75
f h 48.077kHz 49.72kHz 48.363kHz 56.48kHz
H-Total ( us ) 20.80 (1040dots) 20.11(1152 dots) 20.677(1344 dots) 17.71(1328 dots)
H-Sync ( us ) 2.400 ( 120 dots) 1.12(64 dots) 2.092(136 dots) 1.81(136 dots)
H-B-P ( us ) 1.280 (64 dots) 3.91(224 dots) 2.462(160 dots) 1.92(144 dots)
H-Active ( us ) 16.00 (800 dots) 14.52( 832 dots ) 15.754(1024 dots) 13.65(1024 dots)
H-F-P ( us ) 1.120 (56 dots) 0.56(32 dots ) 0.369(24 dots) 0.32(24 dots)
f v 72Hz (72.188) 74.55Hz 60.004Hz 70.07Hz
V-Total (ms ) 13.85 (666 lines) 13.41(667 lines) 16.666(806 lines) 14.27(806 lines)
V-Sync ( ms ) 0.125 (6 lines) 0.06(3 lines) 0.124(6 lines) 0.11(6 lines)
V-B-P (ms ) 0.478 (23 lines) 0.78(39 lines) 0.600(29 lines) 0.51(29 lines)
V-Active ( ms ) 12.48 (600 lines) 12.55 (624 lines) 15.880(768 lines) 13.60(768 lines)
V-F-P ( ms ) 0.770 ( 37 line ) 0.02(1 line) 0.062(3 lines) 0.05(3 lines)
SYNC. H/V + / + +/+ -/- -/-
POLARITY
SEP . SYNC Y2 Y Y Y
MODE NO. 13 14 15 16
RESOLUTION 1024 x 768 1280 x 1024 1280 x 1024 1152 x 864
Dot clock(MHz) 78.75 108 135 108
f h 60.02kHz 63.981kHz 79.976KHz 67.5 KHz
H-Total ( us ) 16.66(1312 dots) 15.630 (1688 dots) 12.504 (1688 dots) 14.815(1600 dots)
H-Sync ( us ) 1.22 (96 dots) 1.037 (112 dots) 1.067 (144 dots) 1.185(128 dots)
H-B-P ( us ) 2.23 (176 dots) 2.296 (248 dots) 1.837 (248 dots) 2.370(256 dots)
H-Active ( us ) 13.00 (1024 dots) 11.852 (1280 dots) 9.481 (1280dots) 10.667(1152 dots)
H-F-P ( us ) 0.20 (16 dots) 0.444 (48 dots) 0.119 (16 dots) 0.593(64 dots)
f v 75.03Hz 60.020Hz 75.025 Hz 75.06 Hz
V-Total (ms ) 13.33 (800 lines) 16.661 (1066 lines) 13.329 (1066 lines) 13.333(900 lines)
V-Sync ( ms ) 0.05 (3 lines) 0.047 ( 3 lines) 0.038 (3 lines) 0.044(3 lines)
V-B-P (ms ) 0.47 (28 lines) 0.594 ( 38 lines) 0.475 (38 lines) 0.474(32 lines)
V-Active ( ms ) 12.80 (768 lines) 16.005 (1024 lines) 12.804(1024 lines) 12.800(864 lines)
V-F-P ( ms ) 0.02 (1 lines) 0.016 (1 line ) 0.013 (1 lines) 0.015(1 lines)
SYNC. H/V +/+ +/+ +/+ +/+
POLARITY
SEP . SYNC Y Y Y Y
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MODE NO. 17 18 19 20
RESOLUTION 1280 x 960 1600 x 1200 1280 x 720 1280 x 768
Dot clock(MHz) 108 162 74.481 79.5
f h 60.000 KHz 75.000 KHz 44.760KHz 47.776KHz
H-Total ( us ) 16.667 (1800dots) 13.333 (2160 dots) 22.341 (1664dots) 20.931 (1664dots)
H-Sync ( us ) 1.037 ( 112 dots) 1.185 ( 192 dots) 1.826 ( 136 dots) 1.61 ( 128 dots)
H-B-P ( us ) 2.889 (312 dots) 1.877 (304 dots) 2.578 (192 dots) 2.415 (192 dots)
H-Active ( us ) 11.852 (1280 dots) 9.877 (1600 dots) 17.186 (1280 dots) 16.101 (1280 dots)
H-F-P ( us ) 0.889 (96 dots) 0.395 (64 dots) 0.752 (56 dots) 0.805 (64 dots)
f v 60.00Hz 60.00 Hz 60.000Hz 59.87Hz
V-Total (ms ) 16.667 (1000 lines) 16.667 (1250 lines) 16.667 (746 lines) 16.703 (798 lines)
V-Sync ( ms ) 0.050 (3 lines) 0.040 (3 lines) 0.067 (3 lines) 0.147 (7 lines)
V-B-P (ms ) 0.600 (36 lines) 0.613 (46 lines) 0.492 (22 lines) 0.419 (20 lines)
V-Active ( ms ) 16.000 (960 lines) 16.000 (1200 lines) 16.086 (720 lines) 16.075 (768 lines)
V-F-P ( ms ) 0.017 ( 1 line ) 0.013 ( 1 line ) 0.022 (5 lines) 0.063 (3 lines)
SYNC. H/V + / + + / + - / + -/+
POLARITY
SEP . SYNC Y Y Y Y
MODE NO. 21 22 23 24
RESOLUTION 1280 x 768 1360 x 768 1440 x 900 1440 x 900
Dot clock(MHz) 102.25 85.5 106.5 136.75
f h 60.289KHz 47.712KHz 55.935KHz 70.635KHz
H-Total ( us ) 16.587 (1696dots) 20.959 (1792dots) 17.878 (1904dots) 14.157 (1936dots)
H-Sync ( us ) 1.252 ( 128 dots) 1.31 ( 112 dots) 1.427 ( 152 dots) 1.112 ( 152 dots)
H-B-P ( us ) 2.034 (208 dots) 2.994 (256 dots) 2.178 (232 dots) 1.814 (248 dots)
H-Active ( us ) 12.518 (1280 dots) 15.906 (1360 dots) 13.521 (1440 dots) 10.53 (1440 dots)
H-F-P ( us ) 0.782 (80 dots) 0.749 (64 dots) 0.751 (80 dots) 0.702 (96 dots)
f v 74.893Hz 60.015Hz 59.887Hz 74.984Hz
V-Total (ms ) 13.352 (805 lines) 16.662 (795 lines) 16.698 (934 lines) 13.336 (942 lines)
V-Sync ( ms ) 0.116 (7 lines) 0.126 (6 lines) 0.107 (6 lines) 0.085 (6 lines)
V-B-P (ms ) 0.448 (27 lines) 0.377 (18 lines) 0.447 (25 lines) 0.467 (33 lines)
V-Active ( ms ) 12.739 (768 lines) 16.097 (768 lines) 16.09 (900 lines) 12.741 (900 lines)
V-F-P ( ms ) 0.05 (3 lines) 0.063 (3 lines) 0.054 (3 lines) 0.042 (3 lines)
SYNC. H/V -/+ + / + -/+ -/+
POLARITY
SEP . SYNC Y Y Y Y
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MODE NO. 25 26 27
RESOLUTION 1680 x 1050 848 x 480 1920X1200
Dot clock(MHz) 146.25 33.75 154
f h 65.29 KHz 31.02 KHz 74.038Khz
H-Total ( us ) 15.316 (2240 dots) 32.237 (1088 dots) 13.506 (2080 dots)
H-Sync ( us ) 1.203 ( 176 dots) 3.319 (112 dots) 0.208 (32 lines)
H-B-P ( us ) 1.915 (280 dots) 3.319 (112 dots) 0.519 (80 dots)
H-Active ( us ) 11.487 (1680 dots) 25.126 (848 dots) 12.468(1920 dots)
H-F-P ( us ) 0.711 (104 dots) 0.474 (16 dots) 0.312 (48 dots)
f v 59.954 Hz 60 Hz 59.950Hz
V-Total (ms ) 16.679 (1089 lines) 16.667 (517 lines ) 16.681 (1235 lines)
V-Sync ( ms ) 0.092 (6 lines) 0.258 (8 lines ) 0.081 (6 lines)
V-B-P (ms ) 0.459 (30 lines) 0.741 (23 lines ) 0.351 (26 lines)
V-Active ( ms ) 16.082 (1050 lines) 15.474 (480 lines ) 16.208 (1200 lines)
V-F-P ( ms ) 0.046 ( 3 line ) 0.193 (6 lines ) 0.041 (3 lines)
SYNC. H/V -/+ + / + +/-
POLARITY
SEP . SYNC Y Y Y
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5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
RED+
BLUE-
AHS
PWM0
VOLUME
MUTE
PWM1
VGA_SCL
FSDATA[0..31]
FSADDR[0..11]
FSCKE
FSCLK-
/FSALTRAS
FSDQS
FSCLK+
/FSALTWE
/FSALTCAS
FSBKSEL0
DQS[0..3]
FSBKSEL1
DM[0..3]
PBIAS
PPWR
GREEN+
RED-
GREEN-
BLUE+
SOG
AVS
VGA_SDA
VGA_CAB
Title
SizeDocumentNumber Rev
Date: Sheet of
WDTB
02. Top Level
78Saturday, December 24, 2005
C2A
SCHEMATIC1
Title
Size DocumentNumber Rev
Date: Sheet of
02. Top Level
78Saturday, December 24, 2005
C2A
SCHEMATIC1
Title
Size DocumentNumber Rev
Date: Sheet of
02. Top Level
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SCHEMATIC1
Page 6
Memory
DQS[0..3]
FSCKE
FSBKSEL1
/FSALTCAS
/FSALTRAS
/FSALTWE
FSBKSEL0
FSCLK-
FSCLK+
FSDQS
FSDATA[0..31]
FSADDR[0..11]
DM[0..3]
PROJECT :PROJECT : WDTB
Page 5
GM5861
FSCLK+
FSCLK-
FSDQS
FSCKE
/FSALTRAS
/FSALTCAS
/FSALTWE
FSBKSEL0
FSBKSEL1
RED-
BLUE-
GREEN-
BLUE+
GREEN+
RED+
SOG
VGA_SCL
VGA_SDA
AHS
AVS
SVDATA[0..7]
SVODD
SVS
SHS
SVCLK
MSTR_SDA
MSTR_SCL
FSDATA[0..31]
FSADDR[0..11]
DQS[0..3]
/RESET
SVDV
PBIAS
PPWRVGA_CAB
PWM0
PWM1
MUTE
ADO_R
ADO_L
ADO_C
DM[0..3]
Page 6
Audio
VOLUME
MUTE
ADO_L
ADO_R
ADO_C
Page 7
Power
PPWR
PBIAS
PWM0
PWM1
VOLUME
+5V
Page 4 03. Graphic Inputs
AHS
GREEN+
BLUE+
BLUE-
RED+
RED-
AVS
VGA_SCL
VGA_SDA
GREEN-
SOG
VGA_CAB
Monitor Block Diagram
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PCB CONDUCTOR VIEW
Main Board
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