Acer AL1515 User manual

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AL1515
Service Guide
Service guide files and updates are available on the
CSD web: for more information,
Please refer to http://csd.acer.com.tw/

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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 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.
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.
Warning
Use only shielded signal cables to connect I/O devices to this equipment. You are cautioned that changes or
modifications not expressly approved by the party responsible for comliance could viold your authority to operate the
equipment.
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
 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 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.
 Slots 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.
 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. 3.5A.
 The wall socket shall be installed near the equipment and shall be easily accessible.

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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 in 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.

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Table of contents
Chapter 1 Monitor Feature …………………………………………………………………...………..8
INTRODUCTION...............................................................................................................................................................8
ELECTRICAL REQUIREMEENTS....................................................................................................................................9
BLOCK DIAGRAM ......................................................................................................................................................... 15
MONITOR BOARD LAYOUT ......................................................................................................................................... 16
SOFTWARE FLOW CHART .......................................................................................................................................... 17
GENERAL INSTRUCTIONS .......................................................................................................................................... 18
SYSTEM INSTALLATION .............................................................................................................................................. 19
POWER BOARD............................................................................................................................................................ 24
ELECTRICAL SPECIFICATION..................................................................................................................................... 25
INVERTER ELECTRICAL SPECIFICATION ................................................................................................................. 26
SAFETY ......................................................................................................................................................................... 28
Chapter 2 Operating Instruction ………………………………………………..……………………..30
CONTROLS ................................................................................................................................................................... 30
MAIN OSD MENU.......................................................................................................................................................... 31
OSD MESSAGE............................................................................................................................................................. 33
PLUG AND PLAY ........................................................................................................................................................... 35
WHITE COLOR TEMPERATURE.................................................................................................................................. 36
AUDIO TECHNICAL SPECIFICATION (FOR AL1515 m ONLY) ................................................................................... 36
SPEAKERS .................................................................................................................................................................... 37
Chapter 3 Machine Disassembly and Replacement …………………………………..…………38
DISASSEMBLY PROCEDURE ...................................................................................................................................... 38
Chapter 4 Troubleshooting …………………………………………………………………………..41
TROUBLESHOOTING ................................................................................................................................................... 41
Chapter 5 Connector Information …………………………………………………………………..45
CONNECTOR INFORMATION ...................................................................................................................................... 45
Chapter 6 FRU List …………………………………………………………………………………… 46
FRU (Field Replaceable Unit) list................................................................................................................................... 46
PART LIST...................................................................................................................................................................... 49
Chapter 7 Schematic Diagram ….……………………………………………………………………..52
SCHEMATIC DIAGRAM ................................................................................................................................................ 52

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Chapter 1
MonitorFeature
INTRODUCTION
Scope
This specification defines the requirements for the 15” high resolution color LCD monitor. This
monitor can be directly connected to general 15 pin D-sub VGA connector and eliminates the
requirement of optional special display card. It also supports VESA DPMS power management and
plug & play function. There is a build-in stereo audio amplifier with volume control to drive a pair of
speakers.
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
20k hours or more.

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ELECTRICAL REQUIREMENTS
Standard Test Conditions
All tests shall be performed under the following conditions, unless otherwise specified.
Ambient light : 225 lux
Viewing distance : 50 cm in front of LCD panel
Warrn up time
All specifications : 30 minutes
Fully functional : 5 seconds
Measuring Equipment : Chroma 2250 signal generator or equivalent, directly
Connected to the monitor under test.
Minolta CA100 photometer, or equivalent
Control settings
User brightness control : Maximum (unless otherwise specified )
User contrast control: Typical (unless otherwise specified )
User red/white balance,
Green/white balance and
Blue/white balance control : In the center (unless otherwise specified )
Power input: 110Vac or 230Vac
Ambient temperature:20 ±5 ˚C ( 68 ±9 ˚F)
Analog input mode: 1024 x768 /60 Hz
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

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LCD monitor General specification
Panel Type: 15 “ active matrix color TFT LCD
LCD Panel
Hannstar LG
Type HSD150SX84 HSD150SX87 LM150X08
Size 15.0” (38cm) 15.0” (38cm) 15.0” (38cm)
Display Type Active matrix color TFT LCD Active matrix color TFT LCD Active matrix color TFT LCD
Resolution 1024x768 1024x768 1024x768
Display Dot 1024x(RGB)X768 1024x(RGB)X768 1024x(RGB)X768
Display color 262K 262K 262K
Brightness 250 cd/m2(typical) 250 cd/m2(typical) 250 cd/m2(typical)
Contrast Ratio 400:1 (typical) 400:1 (typical) 400:1 (typical)
Response Time 35 ms (typicl) 35 ms (typicl) 35 ms (typicl)
Lamp Voltage 760 Vrms (typical) 860 Vrms (typical) 560 Vrms (typical)
Lamp Current 6.0 mA rms. (typical) 6.5 mA rms. (typical) 8 mA rms. (typical)
Viewing Angle Vertical: -55°~+45°
Horizontal: -65°~+65°
Vertical: -55°~+45°
Horizontal: -65°~+65°
Vertical: -55°~+45°
Horizontal: -65°~+65°
Display size: 304mm (H) ×228mm(V)
Display mode: VGA 720 ×400 (70 Hz)
VGA 640 ×480 (60/66/70/72/75 Hz)
SVGA 800 ×600 (60/70/72/75 Hz)
XGA 1024 ×768 (60/70/75 Hz)
Pc interface: 1).Video: RGB analog 0.7V peak to peak
Sync: TTL positive or negative
Signal connector: 15 pin Mini D type, (standard VGA video)
3.5 mm stereo audio jack (Audio) (For AL1515 m only)
Audio power: 0.5Wrms + 0.5Wrms (300Hz – 10kHz (S.P.L. – 10 dB))(AL1515 m only)
Front control: power on/off with LED select adjustment (+,-)
Interface frequency
HorizontalFrequency 24KHz --61KHz
Vertical Frequency 56Hz ------75Hz
Plug & play: Support VESA DDC2B functions
Power Input voltage: Single phase, 50/60HZ, 100 VAC to 240VAC ±10%
Total output power: 60 Watt max.