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Acer G215H&G225HQ
Service Guide
1
Service Guide Version and Revision
Version Release Date Revision History Customer model TPV model
G215H
A00 Aug-25-2009 Initial Release TI9GA8MBMXABHC
G225HQ
2
Copyright
Copyright © 2009 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 ............................................. 11
Factory Preset Timing ............................................. 13
Monitor Block Diagram ............................................. 14
Main Board Diagram ............................................. 15
Power Board Diagram 16
Software Flow chart ............................................. 17
Main Board Layout ............................................. 19
Installation ............................................. 20
Chapter 2 Operating Instructions ............................................. 22
User Controls ............................................. 22
Front Panel Controls ............................................. 22
eColor Management (OSD) ............................................. 23
How to Adjust a Setting ............................................. 23
How to Optimize The DOS-Mode ............................................. 26
Enter into the factory mode ............................................. 26
Chapter 3 Machine Disassembly ............................................. 27
Chapter 4 Troubleshooting ............................................. 33
Chapter 5 Connector Information ............................................. 39
Chapter 6 FRU (Field Replacement Unit) List ............................................. 40
Exploded Diagram ............................................. 40
Chapter 7 Schematic Diagram ............................................. 45
6
Monitor Features Chapter 1
Introduction
Scope
This short specification describes the electrical, optical and functional performance requirements for a 54.7cm (21.5")
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.
Chart of G215H&G225HQ
Panel LM215WF1-TLB1
Signal Interface D-Sub 15pin;DVI 24pin
Sync Type Separate / Compatible
Color Temp User Adjust Support
DDC DDC2B
Speaker Yes
Headphone Jack Yes
Microphone Jack No
USB Hub No
Tilt / Swivel Yes /No
7
Electrical Requirements of G215H&G225HQ
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
distinguished.
Color temperature 6500°K
Brightness control The value under user mode
Analog Input signal 700 mVss
Picture position and size Factory preset value,
Viewing angle 90 ° H and V
Viewing distance 40 cm for LCD performance, 20 cm for LCD failures
Ambient illumination Dark room < 1 cd/m2
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
Pixel pitch 0.248(H) x 0.248(V)
LCD Panel Contrast Ratio 1000 : 1 (typ)
Response time 5ms(Typ.). 8ms(max)
Luminance of White 300 cd/m2(Typ.)
Separate Sync. H/V TTL
Input H-Frequency 30kHz 83kHz
V-Frequency 56-75Hz
Viewing angle H:170°/ V:160° ( type)
Display Colors 16.7M
Weight(with stand) 4.0KG
Weight(without stand) 3.43KG
Dimension(with stand) 519.44(H)x 387.21(V) x 187.90(D) (mm)
Dimension(without stand) 519.44(H)x 327.19(V) x 60.00(D) (mm)
Display mode 1920 x 1080 @60Hz
ON Mode < 65W
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.
Power Source 100 V ~ 240 V50 ± 3Hz, 60 ± 3Hz
Operating Temp: 0° to 40°C
Storage Temp: -20° to 60°C
Environmental Operating Humidity: 15% to 90%
Considerations Storage Humidity: 15% to 90%
Operating Altitude: 12,000 feet
Storage Altitude: 40,000 feet
Peak surge current < 55A peak at 240 VAC and cold starting
Power line surge No advance effects (no loss of information or defect)
9
519.44 mm
160.00 mm
G215H/G225HQ
327.19 mm
387.21 mm
305.50 mm 187.90 mm
10
LCD Panel Specification of G215H&G225HQ
LM215WF1 is a Color Active Matrix Liquid Crystal Display with an integral Cold Cathode Fluorescent Lamp(CCFL)
backlight system. The matrix employs a-Si Thin Film Transistor as the active element. It is a transmissive type
display operating in the normally white mode. It has a 21.5inch diagonally measured active display area with Full HD
resolution (1080 vertical by 1920 horizontal pixel array) Each pixel is divided into Red, Green and Blue sub-pixels or
dots which are arranged in vertical stripes. Gray scale or the brightness of the sub-pixel color is determined with a
8-bit gray scale signal for each dot, thus, presenting a palette of more than 16,7M(True) colors.
General Specifications
Block Diagram
TFT LCD Module
11
Electrical Characteristics
Optical Specifications
(Ta=25 °C, VLCD=5.0V, fV=60Hz Dclk=69.25MHz, IBL=7.5mA)
12
Factory Preset Timing of G215H&G225HQ
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.
CCFL Drive. Flat Panel and
CCFL backlight
Main Board
Power Board
AC-IN
100V-240V
Key board DVI Signal D-SUB Signal
14
Main Board Diagram
Crystal 12MHz Panel Interface
(X401) (CN301)
Scalar IC TSUMU58EHL-LF-1
Flash Memory Key control Interface
EN25F20 (Include MCU, ADC, OSD)
(U402) (CN402)
(U401)
H sync
D-Data V sync
D-Clock RGB
DVI D-Sub
Connector Connector
(CN102) (CN101)
15
Power Board Diagram
AC input 16V
Bridge
EMI filter Rectifier Transformer Rectifier
and Filter diodes
5V
Start Resistor
(R908)
Feedback
PWM Control Circuit
Power Switch
(IC901)
(Q901)
Photo coupler
(IC902)
Output Transformer MOSFET 16V
Circuit (PT801) (Q805, Q806)
Lamp
5V
PWM Control
Feedback TA9687GN ON/OFF
Circuit
(IC801) DIM
16
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
17
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?
18
Main Board Layout
Symbol Description Symbol Description
U401 IC TSUMU58EHL-LF-1 CN402 WAFER
U701 IC AP1117E33L-13 CN701 WAFER 9P RIGHT ANELE PITCH
U106 IC AZC099-04S SOT23-6L CN301 CONNECTOR
D-SUB 15PIN VERTICAL CONN WITH
U107 IC AZC099-04S SOT23-6L CN101
SCREW
U402 EN25F20-100GCP CN102 DVI 24PIN CONN F
X401 14.31818MHZ/32PF/49US0 U601 IC APA2071JI-TUG 3.1W DIP-16
19
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.
1-3 Connect one end of the 19-pin HDMI cable to the back of the 1- monitor and connect the other end to the
computer's port(Optional).
2. Connect the Audio Cable(Only Audio-Input Model)(Optional)
3.Connect power cord
Connect the power cord to the monitor, then to a properly grounded AC outlet.
4. Power-ON Monitor and Computer
Power-ON the monitor first, then power-ON the computer. This sequence is very important.
5. If the monitor still does not function properly, please refer to the troubleshooting section to diagnose the problem.
Connect one end of the 19-pin HDMI cable to the back of the 1- monitor and connect the other end to the
computer's port .
20
Attaching / Removing the Base
Attaching:
Align the base with the stand and push the base towards the top of the monitor.
Removing:
Depress the release hooks as indicated first before removing the base and follow the arrow direction to remove it.
SCREEN POSITION ADJUSTMENT
To optimize the viewing position, you can adjust the monitor tilt by using both of your hands to hold the edges of the
monitor as shown below. The monitor can be adjusted to 15 degrees up or 5 degrees down.
21
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.
User Controls
Power Switch / Power LED:
To turn the monitor ON or OFF.
Lights up to indicate the power is turned ON.
Using the Shortcut Menu
Press the function button to open the shortcut menu. The shortcut menu lets you
quickly select the most commonly accessed settings.
Empowering:
Press the Empowering Key to open the Acer eColor Management OSD and access the scenario modes.
AUTO Auto Adjust:
Press this button to activate the Auto Adjustment function. The Auto Adjustment function is used to set the HPos,
VPos, Clock and Focus.
MENU OSD functions
Press this button to activate the OSD menu.
Volume Up / Down
Press to adjust volume (Only Audio-Input Model)(Optional)
INPUT Input Key
Use Input key to select from different video sources that may be connected to your monitor.
(a) VGA input (b) DVI input (c) HDMI input
As you cycle through the sources you will see the following messages on right top side of screen to indicate
currently selected input source. It may take 1 or 2 seconds for the image to appear.
VGA or DVI or HDMI
If either VGA or DVI input is selected ,but the VGA and DVI cables are not connected, a floating dialog box indicates:
"No Cable Connect" or "No Signal"
22
eColor Management (OSD)
Operation instructions
Step 1: Press " "Key to open the Acer eColor 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 exit the eColor menu.
Features and Benefits
Adjusting the OSD settings
The OSD can be used for adjusting the settings of your LCD Monitor.Press the MENU key to open the OSD. You
can use the OSD to adjust the picture quality, OSD position and general settings. For advanced settings,please refer
to following page:
Adjusting the picture quality
23
1 Press the MENU key to bring up the OSD.
2 Using the keys, select Picture from the OSD. Then navigate to the picture element you wish to adjust.
3 Use the / keys to adjust the sliding scales.
4 The Picture menu can be used to adjust the current Brightness, Contrast,Colour Temp, Auto Config and other
image-related qualities.
Adjusting the OSD position
1 Press the MENU key to bring up the OSD.
2 Using the directional keys, select OSD from the on screen display.Then navigate to the feature you wish to
adjust.
Adjusting the setting
1 Press the MENU key to bring up the OSD.
2 Using the keys, select Setting from the OSD. Then navigate to the feature you wish to adjust.
3 The Setting menu can be used to adjust the screen Menu Language and other important settings.
24
Product information
1 Press the MENU key to bring up the OSD.
2 Using the keys, select Information from the OSD. Then the basic information of LCD monitor will show
up for current input.
25
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.
26
Machine Disassembly Chapter 3
This chapter contains step-by-step procedures on how to disassemble the monitor-
G215H&G225HQ for maintenance.
The tool for disassembly is as follows:
Screwdriver, Hexagonal screwdriver, Putty knife.
Disassembly Procedure
1.Lay the monitor on a flat, soft and clean surface.
2.Press the button remarked in green the remove the base.
3. Remove the two piece of cover hinge and the four screws remarked in red to remove the hinge assembly.
27
4.Remove the rear cover.
Pry the monitor up then find out the hooks' position, use the tool (like the picture or other card) to insert into the
gap of bezel and rear cover.
28
Turn over the monitor and take off the rear cover.
4. Remove the bezel.
Disconnect the connector remarked in green.
PS: be careful to Disconnect the Key board connector, because the keyboard connector maybe damage.
The cable connect
the main board and
key board
29
Remove the 2 screws remarked in red.
Remove the lamp connectors to remove the panel. Put attention to the LVDS cable.
LVDS CABLE
30
6. Turn over the main frame and remove the four screws remarked in red and disconnected remarked in green to
remove the main board and power board.
Power board
Main board
Remove the speakers.
31
7.The panel
32
Troubleshooting Chapter 4
This chapter provides troubleshooting information for the G215H&G225HQ:
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 U701 Pin2=3.3V, C704(+)=1.8V
NG
OK Check U701,Q702 and Q703
Check if X401 oscillate waveforms are
normal
NG
Replace X401 OK
Replace U401
33
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 U701 Pin2=3.3V,
C704(+)=1.8V
OK
Replace U401
OK
X401 oscillate NG
waveform is normal
Check U701, Q702 and Q703
NG
Replace X401
OK
Check HS/VS from
CN101 is normal
NG
Check Correspondent
OK component
Replace U401
34
3. Panel Power Circuit
White screen
NG
Measure Q302 base X401 oscillate
is low level? waveform is normal
OK NG Replace X401
OK
Check CN301 is 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
35
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
36
5. Power Board
1) No power
Check CN902 PIN6, 7 = 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 IC901
NG
OK Check R908 and Change IC901
Check the auxiliary voltage is bigger than
11V and smaller than 25V
OK NG
1) Check IC901
2) Check D907/Q901 circuit
Check IC901 pin5 PWM wave
OK
NG
Check IC901
Check D901/D906/Q904/IC902/ZD901
37
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
Check IC801 PIN10=16V
OK
NG
Check ON/OFF circuit
Check IC801 PIN5 have triangle wave
NG
OK Change IC801
Check IC801 PIN8/PIN9 PWM wave
NG
OK
Check Q805/Q806/IC801
Check the output of PT801
NG
Change PT801
OK
Check connecter & lamp
38
Connector Information Chapter 5
D-sub connect and DVI connect:
15-Pin Color Display Signal Cable
24-Pin Color Display Signal Cable
39
FRU (Field Replaceable Unit) List Chapter 6
This chapter gives you the FRU (Field Replaceable Unit) listing in global configurations of G215H&G225HQ. 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: G215H&G225HQ)
40
Item Description TPV Part No. Acer Part No. Q`ty
BEZEL
1 A34G1508AEMA1B0130 60.LJO0B.001 1
L215EA-9ACER5-S5
2 KEY BUTTON A33G0766AEM 1L0100 N/A 1
3 POWER BUTTON A33G0767AEM 1L0130 N/A 1
4 LENS A33G0768 1 1C0100 N/A 1
5 MAINFRAME Q15G0459301202 60.LJO0B.009 1
REAR COVER DVI
6 A34G1509AEM DB0100 60.LJO0B.002 1
L215WA-9ACER5-S5
7 HINGE A37G0137 3 60.LJO0B.003 1
8 STAND FRONT A34G1510AEM 1B0100 60.LJO0B.005 1
9 STAND REAR A34G1511AEM 1B0100 60.LJO0B.006 1
10 HINGE COVER A33G0772AEM 1L0100 60.LJO0B.004 2
11 BASE A34G1512AEM 1B0100 60.LJO0B.007 1
12 BRAKET BASE A15G0925101 60.LJO0B.008 1
13 RUBBER Q12G6300 95 N/A 6
SCREW(FOR PB/MAIN
S1 0G1G1130 8120 N/A 3
FRAME)
SCREW,(FOR MB/MAIN
S2 0M1G1730 6120 N/A 1
FRAME)
SCREW(FOR
S3 0Q1G1040 10120 N/A 4
HINGE/REAR COVER)
S4 SCREW 0M1G 140 8120 N/A 4
S5 SCREW (T3X6) 0Q1G 130 6120 N/A 6
41
Part List
Above picture show the description of the following component.
Picture Description TPV Part No. Acer Part No.
Main_frame 60.LJO0B.009
Q15G0459301202
A34G1508AEMA1 60.LJO0B.001
Bezel
B0130
750GLG215W1B1
Panel LK.21508.004
1N000
A34G1509AEM
Rear Cover 60.LJO0B.002
DB0100
Power Board PWPC9B41EQMP 55.LHP0B.003
42
756GQ9CB
Main Board 55.LJO0B.001
MA050 00
Key Board KEPC9QKO 55.LJO0B.002
Hinge A37G0137 3 60.LJO0B.003
A34G1512AEM 60.LJO0B.007
Base
1B0100
Bracket Base A15G0925101 60.LJO0B.008
LVDS ASS'Y S89G179T30N8 50.LHF0B.003
43
D-SUB Cable 089G 728HAA DB 50.LAL0B.002
DVI Cable 089G1748GAA AC 50.LAP0B.001
Power Cord 089G404A18N IS 27.L40VB.005
44
Schematic Diagram Chapter 7
Main Board
FB102
MVCC_1 VGA_B+ 1 2 R105 100R 1/16W 5% C102
BEAD 0.047uF DSUB_B+ 2
2
1
H_Sy nc R102 0R05 1/10W 5% R103 1K 1/16W 5% R108 C105
DSUB_H 2
V_Sy nc R104 1K 1/16W 5% 5pF/50V
DSUB_V 2
D109 75R 1/16W 5%
R106 R107 C103 C104 BAT54C VGA_B- R109 100R 1/16WC106
5%
DSUB_B- 2
0.047uF
2K2 1/16W 5% 2K2 1/16W 5% 22pF 22pF
3
U104 ESD_VCC R110 470R 1/16W 5% C107
DSUB_5V DSUB_SOG 2
DSUB_SCL 1 6 H_Sy nc FB103 1000pF
2 I/O1 I/O4 5
CN101 DSUB_SDA 3 GNDVDD 4 V_Sy nc VGA_G+ 1 2 R111 100R 1/16W 5% C108
FB107 I/O2 I/O3 BEAD 0.047uF DSUB_G+ 2
16
R101 10 AZC099-04S C112 R112 C109
DDC1_SCL DSUB_SCL 15 5 VGA_PLUG NC 5pF/50V
2 DDC1_SCL
9 DSUB_5V 300 OHM 75R 1/16W 5%
100R 1/16W 5% 14 4
8 VGA_B- C124 VGA_G- R114 100R 1/16W 5% C110
0.1uF 16V DSUB_G- 2
13 3 VGA_B+ ZD104 0.047uF
R113 7 VGA_G- RLZ5.6B ZD105
DDC1_SDA DSUB_SDA 12 2 VGA_G+ RLZ5.6B
2 DDC1_SDA U103
6 VGA_R- ESD_VCC
100R 1/16W 5% 11 1 VGA_R+ VGA_G+ 1 6 FB101
2 I/O1 I/O4 5
DB15 VGA_R+ 3 GNDVDD 4 VGA_B+ VGA_R+ 1 2 R115 100R 1/16W 5%C111
I/O2 I/O3 DSUB_R+ 2
17
BEAD 0.047uF
AZC099-04S C101 R116
NC C113
75R 1/16W 5% 5pF/50V
U10 1
VGA_R- R117 100R 1/16W 5%
C114
DSUB_R- 2
0.047uF
CMVCC DSUB_5V
2
1
CN102 DVI_5V D104
8 DVI_5V
VSY NC 15 DVI_HPD BAT54C
SY NC GND 6 R118 100R 1/16W 5% DDC2_SCL
DDC SCL DDC2_SCL 2
7 R119 100R 1/16W 5% DDC2_SDA
DDC SDA DDC2_SDA 2
14 R120 10K 1/16W 5% R140
+5V 16
3
HPD NC R123 C116
11 C115 R121 NC NC
1/3shield 3 R122 HDCP_CTRL R124 R125
2/4shield 19 0.1uF/16V NC 2 4K7 1/16W 5% 4K7 1/16W 5% U101
0/5shield 22 Q101 NC 8 1
clk shield NC 7 VCC A0 2
18