
Product Service Manual – G225HQ
Service Manual for acer: G225HQ
P/N: 9J.11016.L1A
9J.11016.41A
Applicable for All Regions
Version: 001
Date:2009/9/7
Notice:
- For RO to input specific “Legal Requirement” in specific NS regarding to responsibility and liability
statements.
First Edition (Sept, 2009)
© Copyright Acer Corporation 2009. All Right Reserved.
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Content Index
1. About This Manual .............................................................................................................. 3
1.1. Trademark ........................................................................................................................ 3
2. Introduction ......................................................................................................................... 4
2.1. RoHS (2002/95/EC) Requirements .................................................................................. 4
2.2. Safety Notice .................................................................................................................... 4
2.3 .Compliance Statement ..................................................................................................... 4
2.4. General Descriptions ....................................................................................................... 4
3. Product Overview ................................................................................................................ 5
3.1. Introduction ...................................................................................................................... 5
3.2. Operational Specification ................................................................................................. 7
3.3. Operational & Functional Specification .......................................................................... 12
3.4. LCD Characteristics ....................................................................................................... 16
3.7. Pallet & Shipment .......................................................................................................... 19
3.8. Certification .................................................................................................................... 20
3.9 Packing ........................................................................................................................... 22
4. Disassembly /Assembly .................................................................................................... 23
4.1. Exploded View ............................................................................................................... 23
4.2. Disassembly /Assembly ................................................................................................. 25
5. Level 1 Cosmetic / Appearance / Alignment Service ......................................................... 35
5.1 Alignment procedure (for function adjustment) ................................................................ 35
5.2 Software / Firmware Upgrade Process ........................................................................... 38
5.3 EDID Upgrade Procedure ............................................................................................... 43
5.4 OSD Operation Guide ..................................................................................................... 46
6. Level 2 Circuit Board and Standard Parts Replacement ................................................... 50
6.1. Trouble Shooting Guide ................................................................................................. 50
6.2 Circuit Operation Theory ................................................................................................. 56
6.3 Spare Parts List ............................................................................................................... 59
Appendix 1 – Screw List / Torque .......................................................................................... 62
Appendix 2 – Physical Dimension Front View and Side view................................................ 65
Appendix 3 – I/F Board ......................................................................................................... 67
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Abbreviations & Acronyms
1. About This Manual
This manual contains information about maintenance and service of acer products. Use this manual to
perform diagnostics tests, troubleshoot problems, and align the acer product.
1.1. Trademark
The following terms are trademarks of Acer Inc. :
Acer
Importance
Only trained service personnel who are familiar with this Acer Product shall perform service or
maintenance to it. Before performing any maintenance or service, the engineer MUST read the “Safety
Note”.
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2. Introduction
This section contains general service information, please read through carefully. It should be stored for
easy access place for quick reference.
2.1. RoHS (2002/95/EC) Requirements
– Applied to all countries require RoHS.
The RoHS (Restriction of Hazardous Substance in Electrical and Electronic Equipment Directive) is a legal
requirement by EU (European Union) for the global electronics industry which sold in EU and some counties
also require this requirement. Any electrical and electronics products launched in the market after June 2006
should meet this RoHS requirements. Products launched in the market before June 2006 are not required to
compliant with RoHS parts. If the original parts are not RoHS complaints, the replacement parts can be non
ROHS complaints, but if the original parts are RoHS compliant, the replacement parts MUST be RoHS
complaints.
If the product service or maintenance require replacing any parts, please confirming the RoHS requirement
before replace them.
2.2. Safety Notice
1. Make sure your working environment is dry and clean, and meets all government safety requirements.
2. Ensure that other persons are safe while you are servicing the product.
DO NOT perform any action that may cause a hazard to the customer or make the product unsafe.
3. Use proper safety devices to ensure your personal safety.
4. Always use approved tools and test equipment for servicing.
5. Never assume the product’s power is disconnected from the mains power supply. Check that it is
disconnected before opening the product’s cabinet.
6. Modules containing electrical components are sensitive to electrostatic discharge (ESD). Follow ESD safety
procedures while handling these parts.
7. Some products contain more than one battery. Do not disassemble any battery, or expose it to high
temperatures such as throwing into fire, or it may explode.
8. Refer to government requirements for battery recycling or disposal.
2.3 .Compliance Statement
Caution: This Optical Storage Product contains a Laser device. Refer to the product specifications and your
local Laser Safety Compliance Requirements.
2.4. General Descriptions
This Service Manual contains general information. There are 3 levels of service:
Level 1: Cosmetic / Appearance / Alignment Service
Level 2: Circuit Board or Standard Parts Replacement
Level 3: Component Repair to Circuit Boards
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3. Product Overview
Panel supplier & module name
LGD LM215WF1-TLA1
AUO M215HW01
Panel Display information
LGD: 0.248 mm x 0.248 mm
SEC: 248.25 um x 248.25
um
Viewing Angle (@ Contrast Ratio >= 10)
R/L:170 degrees (typ)
U/D: 160 degrees (typ)
Analog interface with Scaling supported
With 15-pin D-sub
connector
HDMI interface with Scaling supported
Max resolution mode supported
Number of Display Colors supported
LGD:
1000:1 (typ.), 700:1(min)
AUO:
1000:1 (typ.), 600:1(min)
Test Condition: Set Contrast
at 50, Brightness at 100,
Color at User preset
300 cd/m2 (typ.),250 cd/m2
(min)
Test Condition: Set Contrast
at 50, Brightness at 100,
Color at User preset
DC power input (with AC power adapter)
LED indicator for power status showed
OSD for control & information supported
3.1. Introduction
G225HQ is defined as our new 21.5”W model in ACER V series which will be the ACER project in Qisda.
G225HQ is defined as 21.5”W LCD Monitor supports 1920(H) x 1080(V) resolution with DPMS (Display Power
Management System) and ACER eColor function. There are double input types, D-sub and DVI. G225HQ
adopts LGD panel LM215WF1-TLA1, AUO panel M215HW01 . G225HQ has included 1W+1W speaker.
G225HQ also support ACM 50000:1.
The features summary is shown as below,
*All panel spec. in Q201 definition depends on the variance of panel source.
*All spec. of monitor need to warm up at least 1hr.
* To test the “Contrast Ratio” and “Luminance” functions, the color status must be “User preset” mode.
* 1. “Contrast Ratio”: Set “brightness” at 100, and “contrast” at 50.
* 2. “Luminance”: Set “brightness” at 100, and “contrast” at 100.
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Multi-language supported for OSD
Buttons control supported
6 buttons including 1
monitor power on/off
control button.
Flywheel control supported
No Scaling function supported
Auto adjustment function supported
DDC function supported (EDID ver. 1.3)
DDC-CI support version 1.1 or later
Audio Jack (input connector) supported
Earphone Jack (Output connector)
supported
No
Microphone function supported
No Mechanical Tilt base design
VESA wall mounting design
No Mechanical Lift base design
No Kensington compatible lock design
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Universal input full range
< 30 A (peak)
< 60 A (peak)
1. 1500VAC, 1 sec
2. Ground test: 30A,
1sec
(on-line test)
(in-lab test)
Common: 2KV,
Differential: 1KV
Color: Black
Length: 1800 +/- 50 mm
3.2. Operational Specification
3.2.1 Power supply
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3.2.2 Signal interface
Color: Black
Length: 1800 +/- 30 mm
Color: Black
Length: 1800 +/- 50 mm
Separate H/V-sync
(Positive/Negative)
Logic High: 2.4V ~ 5.5V
Logic Low: 0V ~ 0.5V
(TTL level)
Refer to VESA VSIS
Standard V1R1
600mV for each
differential line
50 Ohm TDR Scan
needed for DVI cable and
interface board
Note-1: The pin assignment of 15-pin D-sub connector is as below,
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Note-2: The pin assignment of 24-pin DVI-D connector is as below,
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Note-3: The pin assignment of 19-pin HDMI connector is as below,
Both for analog and
digital inputs
Both for analog and
digital inputs
< 5 ms
(50% of minimum pixel
clock period)
1920x1080 @ 60Hz
(max. support timing)
Settling Time after
overshoot /undershoot
< 5% final full-scale value
Refer to VESA VSIS
Standard V1R1
Note:Pin 11 is used as Cable Detect.
3.2.3 Video performance
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< 12% of step function
voltage level over the full
voltage range
Refer to VESA VSIS
Standard V1R1
Refer to S/W spec.
document to see the
detailed EDID data
definition.
3.2.4 Scan range
3.2.5 Plug & Play DDC2B DDC-CI Support
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3.2.6 Support Timings
Horizontal
Frequency (KHz)
Nominal Pixel
Clock (MHz)
Note:
3.3. Operational & Functional Specification
3.3.1 Video performance
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1. Show “Input Not Supported” warning message.
When Vertical Frequency is over 76Hz or under 56Hz, the display is Black and showing “Input Not
Supported” warning message. (Some video timings are except for PAL, 50Hz signals.)
2. If Hf /Vf is set in the range of 31KHz~83KHz and 56Hz ~76Hz (not including some video timing), and
Pixel Clock is set in the range of 25.175MHz~173MHz(DVI and HDMI input port 165MHz for SingleLink), but is not the above Resolution, then it will display the nearest mode.
3. When digital input 1680x1050@75Hz and 1920x1080@60Hz_CVT, because of TMDS Pixel Clock is
setting in the range of 25MHz~165MHz, the source may use Dual-Link signal to transmit the timing.
This model can only support Single-Link to receive the information of half-of- Dual-Link, the display
may be abnormal.

*All spec. of monitor need to warm up at least 1hr.
Any input resolution modes
which are under
1920x1080
Test Condition: Set
Contrast at 50,
Brightness at 100,
Color at User preset.
At R/G/B saturated
condition
300 cd/m2 (typ.),250 cd/m2
(min)
Test Condition: Set
Contrast at 50,
Brightness at 100,
Color at User preset.
On/off:5 ms
(typ.),10ms(max)
Test Equipment:
Westar TRD 100 or
equal level
equipment ;
R/L: 170 degrees (typ.)
140 degrees (min)
U/D:160 degrees (typ.)
130 degrees(min)
(0.313, 0.329) +/- (0.03,
0.03)
Any input resolution modes
which are under
1920x1080
Test Condition: Set
Contrast at 50,
Brightness at 100,
Color at User preset.
At R/G/B saturated
condition
300 cd/m2 (typ.),240 cd/m2
(min)
Test Condition: Set
Contrast at 50,
Brightness at 100,
Color at User preset.
On/off:5 ms (typ.),8ms(max)
Test Equipment:
Westar TRD 100 or
equal level
equipment ;
R/L: 170 degrees (typ.)
150 degrees (min)
U/D:160 degrees (typ.)
140 degrees(min)
(0.313, 0.329) +/- (0.03,
0.03)
LGD LM215WF1-TLA1/TLB1
AUO M215HW01 V0/V1
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3.3.2 Brightness Adjustable Range
Brightness adjustable
range
At default contrast level
(saturate point) & Fullwhite color pattern
(Max. brightness value –
Min.
brightness
value)
≧ 100 cd/㎡
Test Specification:
1. Frequency Hertz 5 ~
250 HZ , PSD Level
0.0054 (G2/Hz)
2. Grms = 1.146
3. Sweep Time : 30
minutes per Axis
4. Axes : X,Y,Z
Unpackaged, Non-
Operating
Test Spectrum:
20 Hz 0.0185(g2/Hz)
200Hz 0.0185(g2/Hz)
Duration : 5 Minutes
Axis : 3 axis ( Horizontal
and Vertical axis ,Z axis)
76 cm Height (MP stage)
(1 corner, 3 edges, 6 faces)
Wooden package, Non-
Operating
1. Amplitude : Half sine-wave
50G
2. Duration : 10 ms
3. Test Times : 1
4.Test Sides : All 6 Sides
3.3.3 Acoustical Noise
3.3.4 Environment
3.3.5 Transportation
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Band 1 < 10 V/m
Band 2 < 1 V/m
Band 1 < 200nT
Band 2 < 25nT
After Mass production
under 1dBuv for constant
measure. Besides DNSF
and VCCI class-2 are
optional.
(4)Output sound pressure
level
3.3.6 Electrostatic Discharge Requirements
3.3.7 EMC
3.3.8 Reliability
Note-4: CCFL lifetime is determined as the time at which brightness of lamp is 50%. The typical lifetime of
CCFL is on the condition at 7.0mA lamp current.
3.3.9 Audio performance
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495.6(H) x 292.2(V) x 16.5(D)
495.6(H) x 292.2(V) x 16.35(D)
Horizontal (Right)
CR = 10 (Left)
Vertical
(Up)
CR = 10 (Down)
3.4. LCD Characteristics
3.4.1-1 The Physical definition & Technology summary of LCD panel
LGD LM215WF1 TLA1
AUO M215HW01
3.4.2-1 Optical characteristics of LCD panel
LGD LM215WF1 TLA1
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Color / Chromaticity
Coordinates (CIE)
Color Coordinates (CIE)
White
White Luminance @ CCFL
7.0mA (center)
* The test methods for the above items’ definition, please refer to the relative panel specification.
Horizontal (Right)
CR = 10 (Left)
Vertical
(Up)
CR = 10 (Down)
Color / Chromaticity
Coordinates (CIE)
Color Coordinates (CIE)
White
White Luminance @ CCFL
7.0mA (center)
AUO M215HW01
3.5.1 User’s hardware control definition
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Cool(9300K)
Warm(6500K)
User: Separate R/G/B
adjustment
OSD Horizontal position
OSD Vertical position
EMEA/Non-EMEA
languages for Asia/Europe
Version
3.5.2 OSD control function definition
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3.6.1 Dimension
Tilt: -3.5 ~ +15 degree
Swivel: 0 degree
Monitor with packing
(Gross)
Uc+CLUM-R+BASE:ATIM-D02;
Bezel : AT-IM-D01+Polish
#10000
CLUM-F+BTN OSD : ATIM-D01
BTN PWR: Polish #10000
Quantity of products
(sets)
(Every container)
Quantity of Products
(sets)
(Every Pallet)
Quantity of pallet
(sets)
(Every Container)
3.6.2 Weight
3.6.3 Plastic
3.6.4 Carton
3.7. Pallet & Shipment
3.7.1 Container Specification
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Dimension w/o Base
W*H*D (mm)
Dimension w/ Base
W*H*D (mm)
Carton Interior Dimension (mm)
L*W*H
Carton External Dimension (mm)
L*W*H
3.7.2 Carton Specification
3.7.2.1 Product:
3.7.2.2 Package:
3.8. Certification
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EN60950 /
EK1-ITB 2000:2003
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