Acer AL2017 Schematic

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Acer AL 2017

Service Guide

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Copyright

Copyright © 2006 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

Note

Warning

Caution

Important

Denotes actual messages that appear on screen

Gives bits and pieces of additional information related to

the current topic.

Alerts you to any damage that might result from doing or

not doing specific actions.

Gives precautionary measures to avoid possible hardware or

software problems.

Reminds you to do specific actions relevant to the

accomplishment of procedures.

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Preface

Before using this information and the product it supports, please read the following general information.

1. This Service Guide provides you with all technical information relating to BASICCONFIGURATION

decided for Acer’s “global” product offering. To better fit local market requirements and enhance product

competitiveness, your regional office MAY have decided to extend the functionality of a machine (e.g.

add-on card, modem, or extra memory capability). These LOCALIZED FEATURES will NOT be covered

in this generic service guide. In such cases, please contact your regional offices or the responsible

personnel/channel to provide you with further technical details.

2. Please not WHEN ORDERING FRU PARTS, that you should check the most up-to-date information

available on your regional web or channel. If, for whatever reason, a part number change is made, it will

not be noted in the printed Service Guide, for ACER-AUTHORIZED SERVICE PROVIDERS, your Acer

office may have a DIFFERENT part number code to those given in the FRU list of this printed Service

Guide. You MUST use the list provided by your regional Acer office to order FRU parts for repair and

service of customer machines.

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WARNING: (FOR FCC CERTIFIED MODELS)

NOTE: this equipment has been tested and found to comply with the limits for a Class B digital device,

pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against

harmful interference in a residential installation. This equipment generates, uses and can radiate radio

frequency energy, and if not installed and used in accordance with the instructions, may cause harmful

interference to radio communications. However, there is no guarantee that interference will not occur in a

particular installation. If this equipment does cause harmful interference to radio or television reception,

Which can be determined by turning the equipment off and on, the user is encouraged to try to correct the

interference by one or more of the following measures:

1. Reorient or relocate the receiving antenna.

2. Increase the separation between the equipment and receiver.

3. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

4. Consult the dealer or an experienced radio/TV technician for help.

NOTICE:

1. The changes or modifications not expressly approved by the party responsible for compliance could void

the user’s authority to operate the equipment.

2. Shielded interface cables and AC power cord, if any, must be used in order to comply with the emission

limits.

3. The manufacturer is not responsible for any radio or TV interference caused by unauthorized

modification to this equipment. It is the responsibility of the user to correct such interference.

As an ENERGY STAR® Partner our company has determined that this product meets the ENERGY STAR

®

guidelines for energy efficiency.

WARNING:

To prevent fire or chock hazard, do not expose the monitor to rain or moisture. Dangerously high

voltages are present inside the monitor. Do not open the cabinet. Refer servicing to qualified

personnel only.

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PRECAUTIONS

z Do not use the monitor near water, e.g. near a bathtub, washbowl, kitchen sink, laundry tub,

Swimming pool or in a wet basement.

z 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.

z 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.

z 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.

z 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.

z 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.

z Do not overload power strips and extension cords. Overloading can result in fire or electric shock.
z 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.

z 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.

z 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.

z The wall socket shall be installed near the equipment and shall be easily accessible.
z For use only with the attached power adapter (output 12V DC) which have UL,CSA listed license

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SPECIAL NOTES ON LCD MONITORS

The following symptoms are normal with LCD monitor and do not indicate a problem.

NOTES

z 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.

z You may find slightly uneven brightness in the screen depending on the desktop pattern you use.
z 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.

z 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 Features…………………………………….………. 8

1.1 Test Conditions……………………………………….………… 8

1.2 Features…………………….……………………………….… ... 8

1.3 LCD Panel Specification……………………………………... 9

Chapter 2 OPERATING INSTRUCTIONS… …………….………….……14

2.1 Function Name…………………………………………………14

2.2 OSD Menu Description… ..……………………………………16

2.3 OSD Control… ..………………………………………………...17

2.4 OSD Menu Screen … ..……...…………………………………17

2.5 OSD Function Definition ………………………………………19

2.6 Plug and Play……….………………………………………......20

2.7 Power Saver……………………………………………………..20

Chapter 3 Machine Disassembly and Assembly……..…….… .… 21

3.1 Machine Disassembly…………………………………………21

3.2 Machine Assembly……………….…………………………... 24

Chapter 4 Troubleshooting… ………………….… .…….… .……………27

4.1 Abnormal display Troubleshooting……………………….. .27

4.2 Abnormal (On/Off, LCD Display, K/B) Troubleshooting...29

4.3 Abnormal (BIOS, OSD, Other Display) Troubleshooting. .30

4.4 Audio Abnormal………………………….…………………....31

Chapter 5 Connector Information … ………...……….………...……32

5.1 Function Block Diagram…………….…………………………32

5.2 Connector Location……..………….…………………………33

5.3 D-sub Mini 15Pin Connector…………………...… .…….……33

5.4 DC Connector …………...…………………….…….…….……33

Chapter 6 FRU (Field Replaceable Unit) List.……….……………...34

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Monitor Features

rement, the brightness and

Chapter 1

1.1 Test Conditions

Item Condition
Temperature
Humidity
AC input voltage
Brightness Maximum with OSD setting
Contrast Middle with OSD setting
Resolution setting 1400 x 1050 @60HZ

Color temperature
Measuring instrument Minolta CS -1000T Spectrometer and Photometer CA-210 or equivalent

Others Before measuring, “Auto Adjust” & “Auto Balance” must be done in advance

1.2 Features

l 20.1” SXGA+ TFT LCD Panel
l TN Mode Liquid Crystal
l D-SUB/ DVI-D Input
l Audio Function(Optional)
l Support to 75Hz Refresh Rate
l Support VESA-DCC 2B plug & play function
l Support VESA-DPMS & DVI DMPM Power Management Function
l Wide Viewing Angle
l High Brightness & Contrast Ratio
l High Brightness & Contrast Angular Dependent
l Fast LC Response Time
l Light Weight

Normal room temperature (25±2℃)
50±10%
100V±2V, 120±2V, 60Hz / 240±2V, 50Hz

With OSD setting. (For TCO03 CCT test condition requi
contrast setting on OSD shall be adjusted to meet 125 nit.)

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1.3 LCD panel Specification

Item Specification Unit

Active Area 408.24 (H) x 306.18 (V) (20. 1” diagonal) mm
Driver Element a-si TFT Active Matrix ­Pixel Number 1400 x R.G.B. x 1050 pixel
Pixel Pitch 0.2916 (H) x 0.2916 (V) mm
Pixel Arrangement RGB Vertical Stripe -

LCD panel

Graphic

Performance

Power source Power Input AC100~240 (Worldwide) V

Power consumption

Tilt angle Upward / Downward 18 / -5 degree

Physical Dimension, weight 448 x 429 x 212 (W x H x T) , 5.4 mm, kg

DCC Plug & Play DDC 2B Compliance -

Function

Display Color 16.2M color
Transmissive Mode Normally White ­Viewing Angle (H / V) (Typical 150 / 130) degree
Brightness (Typical 300) cd/m

Contrast Ratio (Typical 600) ­LC Response Time (Tr+Tf)
Separate Sync. TTL Level ­Horizontal Sync. Positive / Negative ­Vertical Sync. Positive / Negative ­Input Connector D-Sub mini 15 pins, DVI-D 24 pins ­Auto Adjust Clock, Phase, H Position & V Position ­Screen Scaling VGA/SVGA/XGA/SXGA Full Screen Display ­Power Management VESA DPMS, DVI DMPM, ENERGY STAR® Compliance
Color Adjustment User, 6500K & 9300K ­OSD Language English, French, German, Spanish, Italian, Japanese,

Traditional Chinese, Simplified Chinese, Dutch, Finnish,

Operation Mode 55 W
Power Saving Sleep Mode
Power Saving OFF Mode < 1W @230VAC 50Hz W

OSD key
Audio & Speaker 2.0 W x2 -

(8) (Tr: 2 + Tf: 6) msec

Russian

< 2W @230VAC 50Hz W

5Keys -

2

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12 o’clock direction

6 o’clock

Normal

(1) Technical Specification Definition of Viewing Angle ( θx, θy):

θx = θy = 0º

θX- = 90º

x-

θy- θy+

θx-

θx+

θy- = 90º

y-

y+

θy+ = 90º

x+

θX+ = 90º

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(2) Definition of Contrast Ratio (CR):

The contrast ratio can be calculated by the following expression and figure below.
Contrast Ratio (CR) = L255 / L0
L255: Luminance of gray level 255

L 0: Luminance of gray level 0
CR = CR (1)

CR (X) is corresponding to the Contrast Ratio of the point X at Figure in Note (5).

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