Acer AT2010 Schematic

Acer AT2010

Service Guide

No.

Service Guide Version and Revision

Version

A00

Release Date

Mar-24-2006

Revision

Original release

electronic machine readable form without prior written permission of Acer Technology Corp. ACER AT2010 Service Manual.

Printed in Fujian.

Disclaimer

The information in this guide is s ubj ec t to c hang e 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.

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.

Trademarks

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.

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 furt her 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 nu m be r cod e to th os e g ive n in t he FR U list o f 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 ar e 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 interferen ce 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.

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.

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 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.

z 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 o verheating, 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 monito r near or over a radiator or he at register. Do not place the mon itor in a b oo kcas e or ca bi ne t unles s prop er vent ilat ion is provided.

z The moni tor should be operated only from the type of power source indicate d 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 cou ld 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. 5A.

z The wall socket shall be installed near the equipment and shall be eas ily accessible.

Special Notes On LCD TV Monitors

The following symptoms are normal with LCD TV 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 Pow er Switch

and then turn it on again to make sure the flicker disappears.

z You may find slightly uneven brightness on the screen depending on the desktop pattern you use. z The LCD TV 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 TV screen, an afterimage of the previous screen may remain after switching

the image, when the same image is displayed for hour s. In this case, the screen is recovered slowly by changing the image or turning off the Power Switch for hours.

Table Of Contents

Monitor Features

General Specifications ……………………………………… 7 LCD TV Description ……………………………………… 8

Chapter 1

Chapter 2

Chapter 3

Chapter 4 Machine Disassembly

Precautions And Notices ……………………………………… 9 D-SUB PIN Distribution ……………………………………… 10 Factory Preset Display Modes ……………………………………… 11 LCD TV Panel Specification ……………………………………… 12 Panel Features ……………………………………… 12 General Specifications ……………………………………… 12 Mechanical Specifications ……………………………………… 12 Optical Specifications ……………………………………… 13

Connecting Peripherals

Front Panel Controls ……………………………………… 14

Remote Control & OSD Operating Instructions

Using The Remote Control ……………………………………… 15 Using The OSD Menus 17

LOGO ……………………………………… 24

……………………………………… 7

……………………………………… 14

……………………………………… 15

……………………………………… 25

Chapter 5 Trouble Shooting Chapter 6 White-Balance, Luminance Adjustment

FRU (Field Replaceable Unit) List

Chapter 7

Chapter 8 PCB Layout

Chapter 9 Schematic Diagram

Exploded Diagram ……………………………………… 41 EDID Data ……………………………………… 42

……………………………………… 33 ……………………………………… 37

……………………………………… 40

……………………………………… 43

……………………………………… 47

Monitor Features

Chapter 1

General Specifications

LCD TV Description

The LCD TV will contain a main board (include audio), an I/O board, a switching power board, a function keyboard (include an IR Board) and an Ear phone board. The main board and power board will house the flat panel to control logic I2C bus, DDC, brightness control logic for LCD panel, DC-DC conversion to supply the appropriate power to the whole board and transmitting TTL level signals into LCD Module to drive the LCD display circuit.

The inverter board will drive the five CCFLs (Cold Cathode Fluorescent Lamp). The switching power board will provides the power ON/OFF to control the TV and control LED indicator for DPMS. The function keyboard and Remote Control will provide the OSD control signal to the Main Board.

Precautions And Notices

1-1 Assembly Precaution

(1) Please do not press or scratch LCD panel surface with anything hard. And do not soil LCD panel

surface by touching with bare hands (Polarize film, surface of LCD panel is easy to be flawed) In the LCD panel, the gap between two glass plates is kept perfectly even to maintain display characteristic and reliability . If this panel is subject to hard pressing, the following occurs :

(a) Uniform color (b) Orientation of liquid crystal becomes disorder

(2) Please wipe out LCD panel surface with absorbent cotton or soft cloth in case of it being soiled. (3) Please wipe out drops of adhesive like saliva and water in LCD panel surface immediately.

They might damage to cause panel surface variation a nd color change.

(4) Do not apply any strong mechanical shock to the LCD panel.

1-2 Operating Precaution

(1) Please be sure to unplug the power cord before remove the back-cover. (be sure the power is

turn-off)

(2) Please do not change variable resistance settings in MAIN-BOARD; they are adjusted to the most

suitable value. If they are changed, it might happen LUMINANCE does not satisfy the white balance spec.

(3) Please consider that LCD backlight takes longer time to become stable of radiation characteristic in

low temperature than in room temperature.

(4) Please pay attention to displaying the same pattern for very long-time. Image might stick on LCD.

1-3 Storage Precaution

(1) When you store LCD for a long time, it is recommended to keep the temperature between -20°C -

60°C without the exposure of sunlight and to keep the humidity less than 85% RH.

(2) Please do not leave the LCD in the environment of high humidity and high temperature such a s

60°C, 95%RH.

(3) Please do not operate the LCD in the environment of abnormal temperature, below 0°C.

1- 4 High Voltage Warning

The high voltage was only generated by Power support part, if carelessly contacted the transformer on this module, can cause a serious shock.

D-SUB PIN Distribution

This procedure gives you instructions for installing and using the LCD TV display. (1) Position the display on the desired operation and plug the power cord into a convenient AC outlet.

Three-wire power cord must be shielded and is provided as a safety precaution as it connects the chassis and cabinet to the electrical conduct ground. If the AC outlet in your location does not have provisions for the grounded type plug, the installer should attach the proper adapter to ensure a safe ground potential.

(2) Connect the 15-pin color display shielded signal cable to your signal system device and lock both screws

on the connector to ensure firm grounding. The connector information is as follow:

11 15

15 - Pin Color Display Signal Cable

Pin NO. Description Pin NO. Description

1 Red Video 9 No Pin! 2 Green Video 10 Sync Ground 3 Blue Video 11 Not Used 4 Not Used 12 Serial Data for DDC 5 Ground 13 H-Sync. 6 Red Ground 14 V-Sync. 7 Green Ground 15 Serial Clock for DDC 8 Blue Ground