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

2Chapter 1
Remote Controller
• Multi-function remote controller
Speaker
• Internal speaker: 10W x 2 stereo, adjustable volume
Environmental Requirement
• Operating temperature: 0 oC to 35 oC
• Operating humidity: 10% to 90% (non-condensing)
• Storage temperature: -20 oC to 60 oC
• Shipping temperature: -20 oC to 60 oC
• Storage humidity: 10% to 90% (non-condensing)
• Shipping humidity: 10% to 90% (non-condensing)
Others
• On screen display adjustment function
• ISP (In System Programming) function available for revising driver easily

Chapter 1 3
Product Specification
Model AT3203
Panel spec.
Resolution (pixels) 1366 x 768
Brightness (tpe.) 500 nits
Contrast Ratio (tpe.) 600:1
Display color 16.7M
Viewing angle (tpe.) H: 170o; V: 170o
Response (tpe.) 16ms (gray to gray)
Power supply
Input 90V ~ 264V AC (47 ~ 63Hz)
Max. power consumption 150W
Power saving 5W
Mechanical
Dimensions (W x H x D mm) 854 x 527 x 207
Weight (Kg/lbs) 15.5/34.2
Gross Weight (Kg/lbs) 16.6/36.4
Wall Mounting (mm) 200 x 100
Analog TV system
TV color system PAL, SECAM
Sound system B/G/D/K/L (multi-European)
Stereo system NICAM/A2
TV Tuner system PLL, 45.25MHz ~ 862.25MHz
Subtitles Teletext 1.5
Analog TV-tuner quantity One
Terminal
Analog Tuner In Yes
SCART1 CVBS (In/Out), RGB (In), AudioR/L
SCART2 CVBS (In/Out), RGB (In), AudioR/L
AV3 in YPbPr, YCbCr, CVBS, AudioR/L
PC D-sub in Yes
PC audio-in Yes
Audio system
Speaker 5W + 5W

4Chapter 1
Block Diagram
System Block & Wiring Diagram
I/O Board
Scart RGB
Scart RGB
Tuner
SPEAKER-L
IR & power button B
d
Key & Earphone Boar
d
SPEAKER-R
INVERTER
PANEL
Board
POWER
M
AIN Boar
d

Chapter 1 5
Block Diagram
PW328
DDR
DDR
FLASH
PW2300B
EEPROM
LCD
D-Sub
SDRAM
IN1 IN0
AUDIO Processor
MSP3415
Speaker
Amp.
TPA3100
R/L
Headphone
Amp.
TPA6110
Audio SW
744052
TA1218
AV Switch
AV1 AV2
S1 S2
R/G/B/H/V
TUNER
AV S-Video
Video
Switch
743257
YPbPr1
SCART1
YPbPr2
SCART2
SCART RGB
AV2/S2
R/L
AV1/S1
R/L
TUNER
SIF
AV3/YPbPr
R/L
SIF
MB R/L
AUDIO Signal
PC IN
R/L
YPbPr3
YPbPr
AV3
AV3
IO R/L
IO R/L
Button & IR
LVDS
Audio
Switch
YPbPr2
R/L
YPbPr1
R/L
HDMI
SiI9011
HDMI R/L
I2S D/A
Audio
HDMI
IN0 to PW328
option

6Chapter 1
LCD TV Overview
Front Panel View
No. Description
1 Volume up/down
2 Input key
3 Menu key
4 Channel up/down
5 Headphone jack
1 Volume up When the OSD is on, functions the same as the Right arrow.
Volume down When the OSD is on, functions the same as the Left arrow.
2 Input key When the OSD is on, press this button to confirm selection.
3 Menu key Turns the OSD menu On and Off
4 Channel up When the OSD is on, functions the same as the Up arrow.
Channel down When the OSD is on, functions the same as the down arrow.
386+ 32:(5
  

Chapter 1 7
Bottom Panel View
No. Description Note
1 Power switch For AV3, Composite and component inputs share the same audio ports.
* HDMI only for AT2604/AT2704/AT3204/AT3704
** DVI only for AT2603/AT2604/AT2703/AT2704/AT3204/AT3704
2 AC-in
3 *HDMI-in
4VGA-in
5 **DVI-in
6 Audio-in
7AV-in
8 SCART x 2
9 Analog antenna-in
12 34 5 97
12 456 9
12 4 6 97
AT3704/AT3204/AT2704/AT2604
AT3203/AT2703/AT2603
AT3202/AT2602
68
8
7
8

8Chapter 1
Remote Control
1. Power: Press to turn on/off your TV.
2. Mute: Press to toggle audio on and off
3. VOL (up/down): Press this button to
increase or decrease the volume.
4. CH (up/down): Press this button to
sequentially select the TV channel.
5. Number keys
6. RECALL: Press to confirm channel
number selection.
7. ENTER: Press to confirm channel number
selection.
8. Input buttons (TV/AV/SCART/PC): Press
to select correct input mode.
9. SLEEP: Press to set a time period after
which the TV will switch itself to stand-by
(15, 30, 45, 60, 90)
10.FREEZE: Press to freeze the displayed
picture.
11.DISPLAY: Press to display input/channel
information (dependent on input/source
type).
12.WIDE: Press to toggle scaling mode
between 4:3, 16:9, Panorama and
Letterbox 1, 2, 3.
13.MENU: Press to open or close the Menu.
14.e (Empowering technology): Activate Acer
Empowering Technology.
15.Directional keys/OK
16.MPX: Press to select the sound input,
displayed in the top right-hand corner
(mono, stereo, bilingual).
17.PIP/PBP/POP: Switch between PIP/PBP/
POP mode.
18.SWAP: For PIP/PBP/POP mode, toggle
between the primary and subscreens.
19.ACTIVE: Toggle between primary and
subscreens.
20.SIZE/MODE: You can change subscreen
size in PIP mode. In POP mode, you can
switch POP mode from 1+5 to 1+12.
21.POSITION: In PIP mode, you can change
subscreen position.





















Chapter 1 9
1. INDEX: Press to go to the index page.
2. SUBSTITLE: Press to view subtitles on
the screen.
3. REVEAL: Press to reveal hidden teletext
information.
4. TELETEXT: Press to switch from TV/AV to
Teletext mode.
5. SIZE: Press once to zoom teletext page to
2X. Press again to resume.
6. MIX: Press to overlay teletext page on the
TV image.
7. HOLD: Press to pause the current teletext
page in multi-page viewing mode.
8. SUBPAGE: Press to access the teletext’s
subpages directly.
9. Colour buttons (R/G/Y/B): Operates
corresponding button on the teletext page.



  



10 Chapter 1
Basic Connection
Connecting the Power Cord
1. Connect the AC cord into the AC input on the back of the set.
2. Connect the plug to the wall outlet as shown.
Connecting an Antenna Cable
Connect the antenna cable to the appropriate antenna terminal on the back of the TV set as shown
below.
Analog

Chapter 1 11
Connecting a DVD / VCR / STB / Audio / Video Equipment
Connect the DVD player, VCR or audio / video equipment using the SCART port located at the rear
of the LCD TV as shown.
NOTE: Acer recommends the priority for connection: 1. HDMI 2. DVI 3. Component 2. SCART 3. Composite.
HDMI only for AT2604/AT2704/AT3204/AT3704.
DVI only for AT2603/AT2604/AT2703/AT2704/AT3204/AT3704.
6RXUFH,1
5
5
:
5
:
%*
5%*
<
<
$8',2
&20326,7(
&20321(17
6&$57

$9
$9
RU
'9' 9&5 67%
RU
+'0,
'6XE '9,
'6XE
'9,
'9,
<
<HOORZ
5HG
:KLWH
%OXH
*UHHQ
5
:
%
*