Acer AT3203 User manual

AT3203
Service Guide
Service guide files and updates are
available on the ACER/CSD web. For
more information, please refer to
http://csd.acer.com.tw

II
PRINTED IN TAIWAN

III
Revision History
Please refer to the table below for the updates of LCD TV AT3203 service guide.
Date Chapter Updates

IV
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.

V
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.
Acer is a registered trademark of Acer Incorporated.
Intel is a registered trademark of Intel Corporation.
Pentium and Pentium M are trademarks of Intel Corporation.
Other brand and product names are trademarks and/or registered trademarks of their respective
holders.

VI
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.

VII
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, you should check the most up-to-date information
available on your regional web or channel. For whatever reason, if 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.

VIII
Table of Contents
Chapter 1 System Specifications 1
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
LCD Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
I/O functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Video functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Mechanical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Multi-Sound System . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Power Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Remote Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Speaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Environmental Requirement . . . . . . . . . . . . . . . . . . . . . . 2
Others . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Product Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
System Block & Wiring Diagram . . . . . . . . . . . . . . . . . . . 4
Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
LCD TV Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Front Panel View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Bottom Panel View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Remote Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Basic Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Connecting the Power Cord . . . . . . . . . . . . . . . . . . . . . 10
Connecting an Antenna Cable . . . . . . . . . . . . . . . . . . . 10
Connecting a DVD / VCR / STB / Audio / Video Equipment
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Connecting a Camera / Camcorder / Video / Headphones
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Connecting a Desktop / Notebook Computer . . . . . . . . 13
Selecting the Input Source . . . . . . . . . . . . . . . . . . . . . . 13
OSD Navigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Navigating the OSD with the Remote Control . . . . . . . . 14
Adjusting the OSD Settings . . . . . . . . . . . . . . . . . . . . . 15
Empowering Technology . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Set-up Empowering mode . . . . . . . . . . . . . . . . . . . . . . 17
Defaulting setting in different Empowering mode . . . . . 18
Advanced Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
PIP / PBP / POP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Lock TV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Re-scan for Channels . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Widescreen Display Mode . . . . . . . . . . . . . . . . . . . . . . 25
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
AT3202/AT3203/AT3204 . . . . . . . . . . . . . . . . . . . . . . . 26
Source Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Chapter 2 Machine Disassembly and Replacement 28
General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

IX
Before You Begin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Disassembly Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Removing the TV Stand . . . . . . . . . . . . . . . . . . . . . . . . 30
Removing the I/O Cover . . . . . . . . . . . . . . . . . . . . . . . . 30
Removing the Rear Cover . . . . . . . . . . . . . . . . . . . . . . 31
Removing the ESD Shield Top . . . . . . . . . . . . . . . . . . . 32
Removing the Main Board and I/O Board . . . . . . . . . . . 33
Removing the Power Supply Board . . . . . . . . . . . . . . . 35
Removing the PCD Holder . . . . . . . . . . . . . . . . . . . . . . 36
Removing the Keypad Board and the Power Button Board
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Removing the LCD . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Removing the Speakers . . . . . . . . . . . . . . . . . . . . . . . . 38
Chapter 3 Troubleshooting 39
Chapter 4 FRU (Field Replaceable Unit) List 49
Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Exploded Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Chapter 1 1
Features
LCD Panel
• Max. resolution: 1366 x 768
• 16 CCFTs backlight system
• Display area: 32 inches diagonal
• Display color: 16.7 M colors
• Input signal: 1-ch LVDS
• Contrast ratio: 800:1 (typical)
• Brightness: 500 Cd/m2(typical)
• Respond time: AU 16 ms; QDI 21 ms
• Viewing angle: 85o(L) / 85o(R), 85o(U) / 85o(D)
I/O functions
• RCA jack (YUV and CVBS) for YPbPr, YCbCr, video and audio
• 15-pin D-Sub for VGA
• DIN45325 (IEC169-2) terminal for TV / CATV input
• 3.5 mm earphone jack for audio line input
Video functions
• Support PAL / NTSC / SECAM video format
• Support 480i/576i, 480p/576p, 1080i and 720p format
• Built-in teletext functions
• Built-in dynamic adaptive smoothing filter
• Built-in dynamic temporal frame-filtering noise reduction
• Built-in dynamic motion and edge adaptive de-interlacing
• Film mode 3:2 & 2:2 pull down
• Screen display model 16:9 / 4:3 / panorama / zoom / PIP / POP
Mechanical
• VESA mounting holes
Multi-Sound System
• NICAM
• FM Stereo (A2)
Power Source
• Input voltage: 90 ~ 264V, 47 ~ 63Hz
• Input current: 1.8A
• Power consumption: 180W
• Stand-by: 5W max.
System Specifications
Chapter 1