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Acer X233HZ&X243HQ
Service Guide
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Service Guide Version and Revision
Version Release Date Revision History Customer model TPV model
A00 Dec.-18-2008 Initial Release X233HZ&X243HQ TDRMNDD8Y1ABPN
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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.
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Intel is a registered trademark of Intel Corporation.
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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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Trademarks
Acer is a registered trademark of Acer Incorporated.
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All other trademarks are property of their respective owners.
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Conventions
The following conventions are used in this manual:
Screen messages Denotes actual messages that appear on screen.
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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.
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Caution Gives precautionary measures to avoid possible hardware or software problems.
Important Remind 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 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
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DIFFERENT part number code to those given in the FRU list of this printed Service Guide. You MUST use the list
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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
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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
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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
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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.
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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.
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Notice:
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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
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
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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,
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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.
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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.
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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
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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
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configured receptacles marked between 100 - 240V AC, Min. 5A.
The wall socket shall be installed near the equipment and shall be easily accessible.
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Special Notes on LCD Monitors
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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
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Chapter 2 Operating Instructions ............................................. 21
External Controls ............................................. 21
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Front Panel Controls ............................................. 21
eColor Management (OSD) ............................................. 22
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How to Adjust a Setting ............................................. 23
How To Optimize The DOS-Mode ............................................. 27
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Enter into the factory mode ............................................. 27
Chapter 3 Machine Disassembly ............................................. 28
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Chapter 4 Troubleshooting ............................................. 31
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Chapter 5 Connector Information ............................................. 37
Chapter 6 FRU (Field Replacement Unit) List ............................................. 38
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Exploded Diagram ............................................. 38
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Chapter 7 Schematic Diagram ............................................. 43
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Monitor Features Chapter 1
Introduction
Scope
This short specification describes the electrical, optical and functional performance requirements for a 63.2cm (23.6")
TFT LCD color monitor with VGA&DVI compatible interface.
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.
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Chart of X233HZ&X243HQ
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Panel M236H1-L01 NB CMO
Signal Interface D-Sub 15pin;DVI 24pin
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Sync Type Separate / Compatible
Color Temp User Adjust Support
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DDC DDC2B
Speaker Yes
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Headphone Jack No
Microphone Jack No
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USB Hub support
Tilt / Swivel Yes /No
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Electrical Requirements of X233HZ&X243HQ
Standard Test Conditions
All tests shall be performed under the following conditions, unless otherwise specified.
Warm up time 30 min.
AC supply voltage 230V± 5, 50± 3 Hz
Ambient temperature 20°C ± 5°C
Humidity 65% ± 20%
Display mode 1920 x 1080, 60 Hz, Pixel Clock148.5MHZ,all white
e-color mode Set to "User" mode
Set to The value under user mode, which allows that the brightest
Contrast control two of 32 linear distributed gray-scales (0 700mv) can be
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Color temperature 6500°
K
Brightness control The value under user mode
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Analog Input signal 700 mVss
Picture position and size Factory preset value,
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Viewing angle 90 ° H and V
Viewing distance 40 cm for LCD performance, 20 cm for LCD failures
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Ambient illumination Dark room < 1 cd/m2
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Measurement systems
The units of measure stated in this document are listed below:
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1 gamma = 1 nano tesla
1 tesla = 10,000 gauss
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cm = in x 2.54
Lb = kg x 2.2
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Degrees F = [° x 1.8] + 32
C
Degrees C = [° - 32]/1.8
F
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
Model name X233HZ&X243HQ
Driving system TFT Color LCD
Active Display Area 525.22 (H) x 297.22(V)
Pixel pitch 0.2715(H) x 0.2715(V)
LCD Panel
Contrast Ratio 1000 : 1 (typ)
Response time 5ms(Typ.). 8ms(max)
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Luminance of White 300 cd/m (Typ.)
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Separate Sync. H/V TTL
Input H-Frequency 30kHz 83kHz
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V-Frequency 56-75Hz
Viewing angle (H)90 (V) 90(Type)
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Display Colors 16.7M
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Display mode 1920 x 1080 @60Hz
ON Mode < 65W
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EPA ENERGY STAR®
OFF Mode < 1W
Set to The value under user mode, which allows that the brightest two of 32 linear
Contrast control
distributed gray-scales (0 700mv) can be distinguished.
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Power Source 100 V ~ 240 V50 ± 3Hz, 60 ± 3Hz
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Operating Temp: 0° to 40° C
Storage Temp: -20° to 60°C
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Environmental Operating Humidity: 15% to 90%
Considerations Storage Humidity: 15% to 90%
Operating Altitude: 12,000 feet (3,658m)
Storage Altitude: 40,000 feet (12,192m)
Peak surge current < 55A peak at 240 VAC and cold starting
Power line surge No advance effects (no loss of information or defect)
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LCD Panel Specification of X233HZ&X243HQ
M236H1-L01 is a 23.6" TFT Liquid Crystal Display module with 4 CCFL Backlight unit and 30 pins 2ch-LVDS
interface. This module supports 1920 x 1080 Full HD mode and can display up to 16.7M colors. The inverter module
for Backlight is not built in.
General Specifications
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Block Diagram
TFT LCD Module
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Back light Unit
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Electrical Characteristics wj
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Optical Specifications
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Factory Preset Timing of X233HZ&X243HQ
VESA 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 59.940 N 25.175
VGA
640x480@72Hz 832 x 520 37.861 N 72.809 N 31.500
800x600@56Hz 1024 x 625 35.156 N/P 56.250 N/P 36.000
SVGA 800x600@60Hz 1056 x 628 37.879 P 60.317 P 40.000
800x600@72Hz 1040 x 666 48.077 P 72.188 P 50.000
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1024x768@60Hz 1344x806 48.363 N 60.004 N 65.000
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XGA
1024x768@70Hz 1328x806 56.476 N 70.069 N 75.000
1152x864@70Hz 1600 x 900 67.500 P 75.000 P 108.000
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VESA 1280x960@60Hz 1800 x 1000 60.000 P 60.000 P 108.000
1280x720@60Hz 1650 x 750 44.955 P 59.940 P 74.176
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SXGA 1280x1024@60Hz 1688 x 1066 63.981 P 60.020 P 108.000
1280x800@60Hz 1680 x 831 49.702 P 59.810 N 83.500
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WXGA
1360x768@60Hz 1792 x 795 47.712 P 60.015 P 85.500
WXGA+ 1440x900@60Hz 1904 x 931 55.935 N 59.887 P 106.5
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WSXGA+ 1680x1050@60Hz 2240 x1089 65.290 N 59.954 P 146.250
1600x1200@60Hz 2160 x 1250 75.000 P 60.000 P 162.000
1920x1080@60Hz 2576 x 1120 67.158 N 59.963 P 173.000
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UXGA
1920x1080@60Hz 2200 x 1125 67.500 N 60.000 N 148.500
1920x1080@60Hz 2080 x 1111 66.587 P 69.934 N 138.500
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IBM MODES
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DOS 720x400@70Hz 900 x 449 31.469 N 70.087 P 28.322
MAC MODES
VGA 640x480@67Hz 864x525 35.000 N 66.667 N 30.240
ACER SPECIAL MODE
[email protected] Hz 808 x 541 31.199 N 57.67 P 25.209
1024x600@60Hz 1312 x 622 37.320 N 60.000 N 48.964
13
Monitor Block Diagram
The LCD MONITOR will contain a main board, a power board, a usb 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.
CCFL Drive. Flat Panel and USB board
CCFL backlight
Main Board
Power Board
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AC-IN
100V-240V
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Key board DVI Signal D-SUB Signal
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Main Board Diagram
Crystal 12MHz Panel Interface
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(X401) (CN301)
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Scalar IC NT68667UFG/C
Flash Memory Key control Interface
SST25VF010A (Include MCU, ADC, OSD)
(CN402)
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(U402)
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(U401)
H sync
V sync
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D-Data
D-Clock RGB
DVI D-Sub
Connector Connector
w(CN102) (CN101)
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Software Flow Chart
1
Y
2 3
N
N
4
N
5
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Y
6
N
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Y
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Y 9
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N
10 11
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Y
N N
12 13
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Y Y
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N
14 15 16
Y
17
N
18 19
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.
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7) Are the AUTO and SELECT keys pressed?
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8) Enter factory mode.
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9) Save the power key status into EEPROM.
Turn on the LED and set it to green color.
Scalar initializes.
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10) In standby mode?
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11) Update the lifetime of back light.
12) Check the analog port, are there any signals coming?
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13) Does the scalar send out an interrupt request?
14) Wake up the scalar.
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15) Are there any signals coming from analog port?
16) Display "No connection Check Signal Cable" message. And go into standby mode after the
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message disappears.
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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
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Symbol Description Symbol Description
U401 IC NT68667UFG/C QFP-128L CN402 WAFER
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U703 IC LD1117DT33TR DPAK 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 SST25VF010A-33-4C-SAE CN101
SCREW
U702 IC AZ1117D-1.8-E1 CN102 DVI 24PIN CONN F
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Installation
To install the monitor to your host system, please follow the steps as given below:
Steps 1.
1-1 Connect Video Cable
a. Make sure both the monitor and computer are powered-OFF.
b. Connect the VGA video cable to the computer.
1-2 Digital Cable (Only Dual-Input Model)
a. Make sure both the monitor and computer are powered-OFF.
b. Connect one end of the 24-pin DVI cable to the back of the monitor and connect the other end to the computer's
port.
Steps 2. Connect power cord
Connect the power cord to the monitor, then to a properly grounded AC outlet.
Steps 3. Power-ON Monitor and Computer
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Power-ON the monitor first, then power-ON the computer. This sequence is very important.
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Steps 4. If the monitor still 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 release button on the bottom of the monitor with the corresponding slots on the bottom of the base.
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Remove:
Depress the release button as indicated first before removing the base and follow the arrow direction to remove it.
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SCREEN POSITION ADJUSTMENT
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In oder to optimize the best viewing position, you can adjust the tilt of the monitor by using both of your hands to hold
the edges of the monitor as shown in the figure below. The monitor can be adjusted to 15 degrees up or 5 degrees
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down as indicated by arrow below.
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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
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Front panel controls
1.Power Switch To turn ON or OFF the power.
2.Power LED
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Lights up to indicate the power is turned ON.
1) When OSD menu is in active status, this button will act as
EXIT-KEY (EXIT OSD menu).
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3.Empowering / Exit
2) When OSD menu is in off status, press this button to select
scenario mode.
1) When OSD menu is in active status, this button will act as
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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
4.Auto Adjust button / Exit
Adjustment function is used to set the Hpos, Vpos, Clock and
Focus.
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3) When exit eColor OSD, it will activate the Auto Adjustment
function
Press < or > to select the desired function. Press < or > to
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5.< / >
change the settings of the current function.
Activate OSD menu when OSD is OFF or activate/de-activate
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6.MENU / ENTER
adjustment function when OSD is ON.
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eColor Management (OSD)
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Operation instructions
Acer eColor Management
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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
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Step 3: Press "Auto Key " to confirm the mode and run Auto Adjust
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Automatic Adjustment
Step 1: Press " Auto Key "to initial scenario mode
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Step 2: Press " Auto Key " again to perform an Auto Adjust
Features and Benefits
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How to Adjust a Setting
1. Press the MENU-button to activate the OSD window.
2. Press < or > to select the desired function.
3. Press the MENU-button to select the function that you want to adjust.
4. Press < or > to change the settings of the current function.
5. To exit and save, select the exit function. If you want to adjust any other function, repeat steps 2-4.
P/X Series OSD behave
When user press "MENU" button on front bezel
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Acer eColor Management
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If selected to "Acer eColor Management" item, will appear the Acer eColor" OSD.
OSD and " Key" locations
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USER
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If selected to "USER" item, will appear the Standard OSD
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Adjusting the picture
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The descriptions for function control LEDS
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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.
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This monitor meets the Green monitor standards as set by the Video Electronics Standards Association (VESA)
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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
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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
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a "Screen Saver" feature except the display is completely off. Pressing a key on the keyboard, or clicking the mouse
restores the display.
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Using the Right Power Cord
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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
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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
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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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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.
27
Machine Disassembly Chapter 3
This chapter contains step-by-step procedures on how to disassemble the X233HZ&X243
HQ monitor for maintenance.
The tool for disassembly is as follows:
Screwdriver,Hexagonal screwdriver, Putty knife.
Disassembly Procedure
1. Remove the hinge assembly.
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2. Remove the rear cover and bezel.
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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.
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3 Remove the lamp connectors and remove the screws to remove the panel. Put attention to the LVDS cable.
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4. Remove the screws to remove the main board and power board.
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5. The panel
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Troubleshooting Chapter 4
This chapter provides troubleshooting information for the X233HZ&X243HQ:
1. No Power
No power
Press power key and look if the
picture is normal
NG
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Please reinsert and make sure the
AC of 100-240 is normal
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OK NG Reinsert or check the
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Measure U703 Pin2=3.3V,
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NG
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OK Check U703, C706 and C707
Check if X401 oscillate waveforms are
normal
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NG
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Replace X401 OK
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Replace U401
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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,
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OK
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Replace U401
OK
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X401 oscillate NG
waveform is normal
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Check U703, C706 and C707
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Replace X401
OK
Check HS/VS from
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CN101 is normal
NG
Check Correspondent
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OK component
Replace U401
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3. Panel Power Circuit
White screen
NG
Measure Q302 base X401 oscillate
is low level? waveform is normal
OK NG Replace X401
OK
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Check CN301 is solder
and Q302, Q301 is OK? Check reset circuit of
U401 is normal
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NG Check Correspondent
NG
Check Correspondent
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component. OK
OK
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Replace U401
Replace PANEL
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4. Key Board
OSD is unstable or not working
NG
Is Key Pad Board connecting normally? Connect Key Board
Y
NG
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Is Button Switch normally? Replace Button Switch
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Y
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NG
Is Key Pad Board normally?
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Y
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Check Main Board
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5. Power Board
1) No power
Check CN902 PIN3, 4 = 5V
NG
Check AC line volt 110V or 220V
OK NG
Check AC input
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Check the voltage of C905 (+)
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OK NG
Check bridge rectified circuit and F901 circuit
Check start voltage for the pin3 of IC901
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NG
OK
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Check R904, R905 and Change IC901
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Check the auxiliary voltage is bigger than
11V and smaller than 25V
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OK NG
1) Check IC901
2) Check R909/D901/C908/C907circuit
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Check IC901 pin8 PWM wave
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OK
NG
Check IC901
Check D906/D907/D908/IC903/Q903/ZD902
35
2.) No Backlight
Check if the input voltage of inverter part is 16V
OK NG
Check adapter part
Check ON/OFF signal
OK NG
Check Interface board
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Check IC801 PIN12=14.5V
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OK
NG
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Check ON/OFF circuit
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Check IC801 PIN5 have triangle wave
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NG
OK Change IC801
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Check IC801 PIN9/PIN10 PWM wave
NG
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OK
Check R816/R817/R818/R819
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Check the output of PT801
OK
NG
Change PT801
Check connecter & lamp
36
Connector Information Chapter 5
D-sub connect and DVI connect:
15-Pin Color Display Signal Cable
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24-Pin Color Display Signal Cable
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FRU (Field Replaceable Unit) List Chapter 6
This chapter gives you the FRU (Field Replaceable Unit) listing in global configurations of X233HZ&X243HQ. 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
t
how to dispose it properly, or follow the rules set by your regional Acer office on how to return it.
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Exploded Diagram (Model: X243HQ&X233HZ)
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Item Description Part No. Q`ty
1 SCERW M3X8 0Q1G130 8120 6
2 SCERW M4X8 0M1G140 8125 4
3 SCERW M4X10 0M1G1740 10120 3
4 SCERW M4X8 0Q1G 940 8120 1
5 SCERW M3X5 0M1G 130 5120 2
6 SCERW M3X6 0M1G1730 6120 6
7 RUBER FOOT 2 A12G0006 1 1
8 RUBER FOOT 1 A12G0007 1 2
9 BAES BRACKET A15G0567 101 1
10 HINGE A37G0110 1 1
11 HINGE COVER R A33G0271 RX 2L0200 1
12 HINGE COVER L A33G0271 RX 1L0200 1
13 BASE BUTTON A33G0266 RX 1L0100 1
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14 BASE A34G1109 RX 1B0130 1
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15 STAND REAR A34G1108 RX 1B0100 1
16 STAND FRONT A34G1107 RX 1B0100 1
17 REAR COVER A34G1106 RX 1B0100 1
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18 PW-SHIELD A15G0478201 1
19 MAIN FRAME A15G0477F01101 1
20 KEY BUTTON Q33G0237 RX 1L0100 1
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21 LED LENS A33G0270 1 1L0100 1
22 BEZEL A34G1105 RXA1B0130 1
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39
Part List
Above picture show the description of the following component.
Picture Description Part No.
Main_frame_Sam A15G0477F01101
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Panel 750GLM236H1112N000
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Power Board PWPC8E41MQHA
40
Main Board CBPCRNDABQP
Key Board KEPC7QK1
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Base A34G1109 RX 1B0130
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Stand Rear A34G1108 RX 1B0100
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Hinge A37G0110 1
USB BOARD USB7QK4
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42
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 0R05 1/10W 5% R103 1K 1/16W 5%
V_Sy nc DSUB_H
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
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5V_ESD
U104