Acer AT2703 Service Manual

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Acer AT2703 Manual Information:

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Summary of Contents:

[Page 1] Acer AT2703

AT2703 Service Guide PRINTED IN TAIWAN Service guide files and updates are available on the AIPG/CSD web; for mor...

[Page 2] Acer AT2703

II Revision History Please refer to the table below for the updates made on AT2703 service guide. Date Chapter Updates ...

[Page 3] Acer AT2703

III 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...

[Page 4] Acer AT2703

IV 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 th...

[Page 5] Acer AT2703

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 "g...

[Page 6] Acer AT2703

Chapter 1 1 Chapter1 System Specifications ...............................................1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Product Specification . . . . . . . . . . . . . . . . . . . ....

[Page 7] Acer AT2703

Chapter 1 1 Features LCD Panel • Max. resolution: 1366 x 768 • 16 CCFTs backlight system • Display area: 27 inches diagonal • Display color: 16.7 M colors • Input signal: 1-ch LVDS • Contrast ratio: 1000:1 (typical) • Brightness:...

[Page 8] Acer AT2703

2 Chapter 1 Remote Controller • Multi-function remote controller Speaker • Internal speaker: 10W x 2 stereo, adjustable volume Environmental Requirement • Operating temperature: 0 o C to 35 o C • Operating humidity: 10% to 90% (non-cond...

[Page 9] Acer AT2703

Chapter 1 3 Product Specification Model AT2703 Panel spec. Resolution (pixels) 1366 x 768 Brightness (tpe.) 500 nits Contrast Ratio (tpe.) 1000:1 Display color 16.7M Viewing angle (tpe.) H: 176 o ; V: 176 o Response (tpe.) 8ms (gray to gray) Power su...

[Page 10] Acer AT2703

4 Chapter 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 ...

[Page 11] Acer AT2703

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...

[Page 12] Acer AT2703

6 Chapter 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 t...

[Page 13] Acer AT2703

Chapter 1 7 Bottom Panel View (for EMEA) No. Description Note 1 Power switch For AV3, Composite and component inputs share the same audio port. * HDMI only for AT2604/AT2704/AT3204/AT3704 ** DVI only for AT2604/AT2703/AT2704/AT3204/AT3704 2 AC-in 3 ...

[Page 14] Acer AT2703

8 Chapter 1 Bottom Panel View (for non EMEA) No. Description Note 1 Power switch For AV3, Composite and component inputs share the same audio port. * HDMI only for AT2604/AT2704/AT3204/AT3704 ** DVI only for AT2604/AT2703/AT2704/AT3204/AT3704 2 AC-i...

[Page 15] Acer AT2703

Chapter 1 9 Remote Control (for EMEA) 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 sequentia...

[Page 16] Acer AT2703

10 Chapter 1 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...

[Page 17] Acer AT2703

Chapter 1 11 Remote Control (for non EMEA) 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 sequ...

[Page 18] Acer AT2703

12 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. (The power cord supplied varies according to your region) Connecting an Antenna ...

[Page 19] Acer AT2703

Chapter 1 13 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. For EMEA: NOTE: Acer recommends the priority for connection: ...

[Page 20] Acer AT2703

14 Chapter 1 Connecting a Camera / Camcorder / Video / Headphones Connect the camera or camcorder to the video / audio ports on the bottom of the TV set as shown below. Connecting a Desktop / Notebook Computer To display PC output on the LCD TV, con...

[Page 21] Acer AT2703

Chapter 1 15 1.TV key: Toggle Analog TV (ATV) between input sources. 2. AV key: Toggle AV3 and HDMI(*) between input sources. 3. COMPONENT key: Toggle COMPONENT1-2 between input sources. 4.PC key: Toggle VGA and DVI(**) between input sources. NOT...

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16 Chapter 1 OSD Navigation Many of the advanced settings and adjustments are available through using the OSD (On Screen Display) menus, as shown in the example screenshot below. Basic operations required to navigate these menus (Picture, Audio, Cha...

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Chapter 1 17 Adjusting the OSD Settings You can use the OSD to adjust the picture quality, audio settings, channel settings, general settings and the Empowering Technology settings. For advanced settings, please refer to the following table. Adjust...

[Page 24] Acer AT2703

18 Chapter 1 NOTE: The options available on the OSD may vary depending on the TV signal source. Some digital options may not be available with an analog signal and vice versa. ...

[Page 25] Acer AT2703

Chapter 1 19 Empowering Technology The Empowering Key opens up the Acer Empowering Technology functions. In TV mode, the choice is between Scenario mode and Favorite channel. The default setting for both modes is Scenario mode. Set-up Empowering mo...

[Page 26] Acer AT2703

20 Chapter 1 Defaulting setting in different Empowering mode Scenario mode in TV (default setting) Scenario mode has five preset viewing modes designed to give you the best picture quality when watching a particular kind of program. There are five p...

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Chapter 1 21 Favorite channel mode in TV Favorite channel allows you to store five of your favorite TV channels and flick between them at the touch of a single button. Storing favorite channels 1 Select your desired channel, then press the MENU key...

[Page 28] Acer AT2703

22 Chapter 1 Advanced Features PIP / PBP / POP Press the PIP / PBP / POP button once to display activate picture-in-picture (PIP). Press twice to activate picture-by-picture (PBP). Press three times to activate picture-on-picture (POP). Then, the P...

[Page 29] Acer AT2703

Chapter 1 23 Lock TV Locking TV content Lock TV is a handy feature that can block a single channel, multiple channels or all TV sources. Lock TV allows you to enter a password and effectively stop anyone without the password from watching TV. Follo...

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24 Chapter 1 NOTE: The default PIN for this TV is “0000”. First enter “0000” when you want to change the PIN. If you forget your PIN, please enter 6163 to reset. Setting a personal PIN 1 Navigate to the channel you wish to manage. 2 Press th...

[Page 31] Acer AT2703

Chapter 1 25 Locking a single channel 1 Navigate to the channel you wish to manage. 2 Press the MENU key on the remote control to bring up the OSD. 3 Use the directional keys to navigate to the Channel management menu. Then select Lock this channe...

[Page 32] Acer AT2703

26 Chapter 1 Locking your TV 1 Navigate to the channel you wish to manage. 2 Press the MENU key on the remote control to bring up the OSD. 3 Use the directional keys to navigate to the Settings menu. Then select Lock TV. 4 Enter a four-digit passw...

[Page 33] Acer AT2703

Chapter 1 27 Re-scan for Channels The first time you completed the setup wizard, all available channels were listed. If you need to re- scan for new channels, please follow the steps below: Scanning for channels Auto-scan 1 Press the MENU key on the ...

[Page 34] Acer AT2703

28 Chapter 1 Widescreen Display Mode Your Acer LCD TV has a special widescreen mode that allows you to toggle between 4:3, 16:9, Panorama and Letterbox 1, 2 and 3 type view. Press the WIDE key on the remote control to toggle the display between the...

[Page 35] Acer AT2703

Chapter 1 29 Dimensions NOTE: Unit: mm        386+ 32:(5      ...

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30 Chapter 1 Source Options 3,33%3 0DLQ 6XE 79 6&$57 6&$57 $9 9*$ 79 ;;;; 6&$57 ;;;; 6&$57 ;;;; $9 ;;;; 9*$ ; 323 ...

[Page 37] Acer AT2703

Chapter 2 31 This chapter contains step-by-step procedures on how to disassemble the LCD TV 2703 for maintenance and troubleshooting. To disassemble the LCD TV 2703, you need the following tools: T Wrist grounding strap and conductive mat for preven...

[Page 38] Acer AT2703

32 Chapter 2 General Information Before You Begin Before processing with the disassembly procedure, make sure that you do the following: 1. Turn off the power to the system and all peripheral. 2. Unplug the AC adapter and all power and signal cables ...

[Page 39] Acer AT2703

Chapter 2 33 Disassembly Procedure Removing the TV Stand 1. Release the four screws fastening the TV stand. 2. Then pull out the TV stand. Removing the I/O Cover 1. Release those screws marked in yellow for removing the I/O cover. 2. Slide the I/O co...

[Page 40] Acer AT2703

34 Chapter 2 Removing the Rear Cover 1. Release those screws as shown for removing the rear cover. 2. Then lift the rear cover. Removing the ESD Shield Top 1. Release the nine screws securing the ESD shield top. 2. Then lift the ESD shield top as sho...

[Page 41] Acer AT2703

Chapter 2 35 Removing the Main Board and I/O Board 1. This is the upper view of the main board and the location of those connectors. 2. Disconnect the keypad to main board cable. 3. Disconnect the speakers to main board cable. 4. Disconnect the LVDS ...

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36 Chapter 2 ...

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Chapter 2 37 Removing the Power Supply Board 1. Release the seven screws fastening the power supply board and the cable then detach the power supply board. ...

[Page 44] Acer AT2703

38 Chapter 2 Removing the PCD Holder 1. Release those screws marked in yellow. 2. Then lift the PCD holder as shown. ...

[Page 45] Acer AT2703

Chapter 2 39 Removing the Keypad Board and the Power Button Board 1. Release the five screws fastening the keypad board then detach it. 2. Release the four screws fastening the power button board then detach it. 3. They are the keypad board and the p...

[Page 46] Acer AT2703

40 Chapter 2 Removing the LCD 1. Release the four screws on the LCD brackets. 2. Then lift the LCD. Removing the Speakers 1. Release the four screws securing the speaker. 2. Repeat the anterior two steps to remove the other speaker. ...

[Page 47] Acer AT2703

Chapter 3 41 Please use the following procedures as a guide for Acer LCD TV AT2703/AT2704 problems. NOTE: The diagnostic tests are intended to test only Acer products. Non-Acer products, prototype cards, or modified options may occur errors or inval...

[Page 48] Acer AT2703

42 Chapter 3 Start Does the unit Power on No power on No 1 LCD Fail 2 4 10 7 5 3 Remote Control Fail DDC / POP PIP Fail RF No Signal / HDTV Fail TV Channel Fail Unit Hang Up Suddenly AV1,AV2,AV3 Speaker No Sound Can’t Change to Factory Mode But...

[Page 49] Acer AT2703

Chapter 3 43 1 Power Cord Power Cable Power Board Main Bard END Replacement Replacement Replacement Replacement N.G N.G N.G N.G ...

[Page 50] Acer AT2703

44 Chapter 3 2 LCD No Back Light LCD No Display CCFT Cable Inverter Board LCD Panel Main Board END END LCD Panel Main Board LCD Cable Replacement Replacement Replacement Replacement N.G N.G N.G N.G N.G N.G N.G ...

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Chapter 3 45 3 Button Board I/O Board Main Board END Replacement Replacement Replacement N.G N.G N.G ...

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46 Chapter 3 4 Main Board END Replacement N.G 5 IR Cable IR board Main Board END Replacement Replacement Replacement N.G N.G N.G ...

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Chapter 3 47 6 IO Board Main Board END Replacement Replacement N.G N.G 7 Button Cable Button Board Main Board END Replacement Replacement Replacement N.G N.G N.G ...

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48 Chapter 3 8 Power Board Main Board END Replacement Replacement N.G N.G ...

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Chapter 3 49 9 Speck Cable Speaker Head phone Cable Main Board IO Board END Replacement Replacement Replacement Replacement Replacement N.G N.G N.G N.G N.G ...

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50 Chapter 3 10 Button Cable Button Board IO Board Main Bard END Replacement Replacement Replacement Replacement N.G N.G N.G N.G ...

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Chapter 4 51 This chapter offers the FRU (Field Replaceable Unit) list in global configuration of AT2703. Refer to this chapter whenever ordering the parts to repair or for RMA (Return Merchandise Authorization). Please note that when ordering FRU p...

[Page 58] Acer AT2703

52 Chapter 4 Exploded Diagram ...

[Page 59] Acer AT2703

Chapter 4 53 Item Description Item Description 1 LCD bezel assy 2 Function key 3 Power IR LED assy 4 IR board assy 5 Keypad&AV3 board 6 Speaker Right 7 Speaker Left 8 Panel bracket 9 LCD 10 PCD holder assy 11 Translation board 12 Mainboard 13 Pow...

[Page 60] Acer AT2703

54 Chapter 4 Parts The latest parts information will be updated shortly. ...