Acer AT2635 LCD TV
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
PRINTED IN CHINA
Revision History
Please refer to the table below for the updates of LCD TV AT2635 service guide.
Date Chapter Updates
2007/10/5 Chapter 1 ~ 3 1st edition
2007/10/8 Chapter 3 2nd edition
II
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.
III
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.
Other brand and product names are trademarks and/or registered trademarks of their respective holders.
IV
Conventions
The following conventions are used in this manual.
SCREEN MESSAGES Denotes actual messages that appear on screen.
NOTE
WARNING
CAUTION
IMPORTANT
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.
V
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.
VI
Chapter 1
System Specification
Specification
LCD Panel
Max. resolution: 1366 x 768
12 CCFTs Backlight system
Display area: 26 inches
Display color: 16.7 M colors
Input Signal: 1-ch LVDS
Contrast ratio: 800:1 ( Typical )
Brightness: 500 Cd/m² ( Typical )
Response Time: 6.5 ms ( Typical )
Viewing angle: 88° ( L ) / 88° ( R ), 88° ( U ) / 88° ( D )
I/O functions
21 pin Euro-SCART ( RGB ) for Video, S-Video, R.G.B. and Audio
21 pin Euro-SCART ( RGB ) for Video, S-Video, R G B and Audio
RCA jack ( YUV and CVBS ) for YPbPr, YCbCr, Video and Audio
15 pin D-Sub for VGA
19 pin D-Sub for HDMI
DIN45325 ( IEC169-2 ) Terminal for TV / CATV input
3.5 mm∮Earphone jack for Audio Line input (option )
Video Functions
Support PAL / NTSC / SECAM video format
Support 480i/576i, 480p/576p, 1080i and 720p format
Build in Teletext functions
Build in Dynamic adaptive smoothing filter
Build in Dynamic temporal frame-filtering Noise Reduction
Build in Dynamic motion and edge adaptive De-interlacing
Film mode 3:2 & 2:2 pull down
Screen display model Auto/4:3/16:9/Panorama/Letterbox1,2,3
1 Chapter1
Mechanical
VESA mounting holes
Compatibility
Multi-Sound system
NICAM
FM Stereo ( A2 )
Power Source
Input voltage: 90 ~ 264 V, 47 ~ 63 Hz
Input current: 220Vac/0.87A
Power consumption: 190 Watts
Stand-by: 1 Watts Max.
Remote controllers
Multi-function remote controller
Speaker
Internal speaker: 5 W x 2 stereo, volume adjustable
Others
On screen display adjustment function
ISP ( In System Programming ) function available for revising driver easily
Chapter1 2
System Block & Wiring Diagram
OUTPUT
PANEL
INPUT
Bidirectional
1366x768
System Power
+12V
5VSB
VCC
TMDS
TMDS341A
3:1 MUX
HDMI
HDMI
Single LVDS
MT5371
Scale
R
L
MT8291
ADC & DAC
Audio IIS
TS
FB
ARD
SIF SIF
YPbPr-SCART
YPbPr-AV3
Y/C1
Y/C2
TV_CVBS
CVBS1
CVBS2
CVBS3
PC-RGB
AV3 Audio
DAC Audio R/L
PC Audio
BUFR
SCART-RGB Audio
SCART-YUV Audio
IO_SW2
SW
ARDx2
SW
IO_SW1
FBx2
RGB
YUV
TPA3100D2
Amplifier
AudioOUT
Video OUT
AudioOUT
MT5131
DEMON
FQD1216 MK5
Video OUT
SCART1-RGBSCART2-RGB
PHILIPS
TI
3 Chapter1
Remote Control
Key Functions
Remote Function des cription
Remark (for
R/C for Europe Key Functions
Power Power On/Off
Display Display Channel and Input Source
Mute Mute On/Off
TV TV Turner
SCART SCART1/SCART2
cardreader)
Chapter1 4