Acer AT2703 AT2703 Service Guide
Acer AT2703 Manual
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- Acer AT2703 | AT2703 Service Guide - Page 1
AT2703 Service Guide Service guide files and updates are available on the AIPG/CSD web; for more information, please refer to http://csd.acer.com.tw PRINTED IN TAIWAN - Acer AT2703 | AT2703 Service Guide - Page 2
Revision History Please refer to the table below for the updates made on AT2703 service guide. Date Chapter Updates II - Acer AT2703 | AT2703 Service Guide - Page 3
by any means, electronic, mechanical, magnetic, optical, chemical, manual or otherwise, without the prior written permission of Acer Incorporated. Disclaimer The information in this guide is subject to change without notice. Acer Incorporated makes no representations or warranties, either expressed - Acer AT2703 | AT2703 Service Guide - Page 4
Conventions The following conventions are used in this manual: Screen messages Denotes actual messages that appear on screen. . Gives precautionary measures to avoid possible hardware or software problems. Reminds you to do specific actions relevant to the accomplishment of procedures. IV - Acer AT2703 | AT2703 Service Guide - Page 5
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 - Acer AT2703 | AT2703 Service Guide - Page 6
Chapter1 System Specifications 1 Features 1 Product Specification 3 Block Diagram 4 LCD TV Overview 6 Bottom Panel View (for EMEA 7 Bottom Panel View (for non EMEA 8 Remote Control (for EMEA 9 Remote Control (for non EMEA 11 Basic Connection 12 OSD Navigation 16 Empowering Technology 19 - Acer AT2703 | AT2703 Service Guide - Page 7
System Specifications Features LCD Panel • Max. resolution: 1366 x 768 • 16 CCFTs backlight system • Display area: 27 inches diagonal • Display color: 16.7 M for TV / CATV input • 3.5 mm earphone jack for audio line input Video functions • Support PAL / NTSC / SECAM video format • Support 480i/ - Acer AT2703 | AT2703 Service Guide - Page 8
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 - Acer AT2703 | AT2703 Service Guide - Page 9
system Sound system Stereo system TV Tuner system Subtitles Analog TV-tuner quantity Terminal Analog Tuner In SCART1 SCART2 AV3 in DVI in HDMI in PC D-sub in PC audio-in Audio system Speaker AT2703 1366 x 768 500 nits 1000:1 16.7M H: 176o; V: 176o 8ms (gray to gray) 90V ~ 264V AC (47 ~ 63Hz - Acer AT2703 | AT2703 Service Guide - Page 10
Block Diagram System Block & Wiring Diagram INVERTER PANEL POWER Board MAIN Board I/O Board Tuner Scart RGB Scart RGB IR & power button Bd Key & Earphone Board SPEAKER-L SPEAKER-R 4 Chapter 1 - Acer AT2703 | AT2703 Service Guide - Page 11
TA1218 AV Switch Video Switch 743257 Audio IO R/L Switch AV S-Video SCART RGB YPbPr AV3 option R/G/B/H/V D-Sub SDRAM FLASH IN1 PW2300B IN0 PW328 LVDS LCD Button & IR Audio SW 744052 DDR DDR EEPROM Block Diagram HDMI PC IN R/L AV3/YPbPr R/L TUNER SIF HDMI SiI9011 IN0 to PW328 I2S D/A HDMI - Acer AT2703 | AT2703 Service Guide - Page 12
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 386+ 32:(5 1 Volume up When the OSD - Acer AT2703 | AT2703 Service Guide - Page 13
-in 3 *HDMI-in 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 4 VGA-in 5 **DVI-in 6 Audio-in 7 AV-in 8 SCART x 2 9 Analog antenna-in - Acer AT2703 | AT2703 Service Guide - Page 14
-in 3 *HDMI-in 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 4 VGA-in 5 **DVI-in 6 Audio-in 7 Component 1,2-in 8 AV 1,2-in 9 Analog antenna-in - Acer AT2703 | AT2703 Service Guide - Page 15
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 sequentially select the TV Activate Acer - Acer AT2703 | AT2703 Service Guide - Page 16
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. 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 - Acer AT2703 | AT2703 Service Guide - Page 17
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 sequentially select the TV technology): Activate Acer Empowering - Acer AT2703 | AT2703 Service Guide - Page 18
cord supplied varies according to your region) Connecting an Antenna Cable Connect the antenna cable to the appropriate antenna terminal on the back of the TV set as shown below. For EMEA: $QDORJ For non EMEA: 12 $QDORJ &20321(17 &20321(17 69,'(2 $9 $9 Chapter 1 - Acer AT2703 | AT2703 Service Guide - Page 19
/ video equipment using the SCART port located at the rear of the LCD TV as shown. For EMEA: 5:< $8',2 &20326,7( 5%* < - Acer AT2703 | AT2703 Service Guide - Page 20
refresh rate. DVI only for AT2604/AT2703/AT2704/AT3204/AT3704 Selecting the Input Source Once you have connected your antenna or external equipment to the TV, you need to select the correct input source. Press the corresponding button on the remote control to select the correct input source. 14 - Acer AT2703 | AT2703 Service Guide - Page 21
key: Toggle Analog TV (ATV) between input sources. 2. AV key: Toggle AV3 and HDMI(*) between input sources. 3. COMPONENT key: Toggle COMPONENT1 and DVI(**) between input sources. NOTE: * HDMI only for AT2604/AT2704/AT3204/AT3704 ** DVI only for AT2604/AT2703/AT2704/AT3204/AT3704 Chapter 1 15 - Acer AT2703 | AT2703 Service Guide - Page 22
in this section. The first time you access the OSD, you will be asked to choose your language settings. Navigating the OSD with the Remote Control 0(18 There are six main OSD menus. These are Picture, Audio, Channel management, Options, Settings and Empowering. Use the following method to navigate - Acer AT2703 | AT2703 Service Guide - Page 23
Channel management from the OSD. 3. Use the directional keys to navigate the menus. 4. The Channel management menu can be used to adjust and set the TV ratings. Adjusting other options 1. Press the MENU key to bring up the OSD. 2. Using the directional keys, select Options from the OSD. 3. Use the - Acer AT2703 | AT2703 Service Guide - Page 24
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. 18 Chapter 1 - Acer AT2703 | AT2703 Service Guide - Page 25
PRGH 0RUHWKDQVHFRQGV The Empowering Key opens up the Acer Empowering Technology functions. In TV mode, the choice is between Scenario mode and Favorite the Empowering Key for more than two seconds to open the menu. The TV mode Empowering Key settings menu will come out as below. 2 3 0(18 - Acer AT2703 | AT2703 Service Guide - Page 26
setting in different Empowering mode Scenario mode in TV (default setting) Scenario mode has five preset viewing and video settings for optional enjoyment of the following scenarios: Standard TV, Movie, Sport, Concert, Game, User. Press the Empowering Key for less than one second will toggle - Acer AT2703 | AT2703 Service Guide - Page 27
are a total of five slots in which you can store TV programs. Viewing the favorite channels On the remote control, if you press the Empowering Key for less than one second, the TV will toggle between the five stored TV channels sequentially according to your list of favorites. Chapter 1 21 - Acer AT2703 | AT2703 Service Guide - Page 28
). Press twice to activate picture-by-picture (PBP). Press three times to activate picture-on-picture (POP). Then, the POP screens will display the TV channel programs one by one. 3,3 3LFWXUHLQ3LFWXUH NOTE: The OSD menu is not available in PIP / PBP / POP modes. 3%3 3LFWXUHE\3LFWXUH - Acer AT2703 | AT2703 Service Guide - Page 29
and the PBP screen. 1. Press the ACTIVE key to toggle between POP screens. 2. Press the number keys or CH up or down to change the TV channel on the active screen. 3. Press the SIZE / MODE key to access the 1 + 5 or 1 + 12 picture-on-picture mode as shown in the image - Acer AT2703 | AT2703 Service Guide - Page 30
key on the remote control to bring up the OSD. 3 4 0(18 5 0(18 Use the directional keys to navigate to the select Set PIN. Settings menu. Then Enter a four-digit password. Type it again and press OK to reconfirm. Press MENU to exit. NOTE: The default PIN for this TV - Acer AT2703 | AT2703 Service Guide - Page 31
Locking a single channel 1 Navigate to the channel you wish to manage. 2 0(18 Press the MENU key on the remote control to bring up the OSD. 3 4 0(18 5 0(18 Use the directional keys to navigate to the Channel management menu. Then select Lock this channel. Enter you - Acer AT2703 | AT2703 Service Guide - Page 32
1 2 0(18 Navigate to the channel you wish to manage. Press the MENU key on the remote control to bring up the OSD. 3 4 0(18 5 0(18 Use the directional keys to navigate to the select Lock TV. Settings menu. Then Enter a four-digit password. Type it again and press OK to reconfirm. Press - Acer AT2703 | AT2703 Service Guide - Page 33
for new channels, please follow the steps below: 0(18 1 0(18 2 3 0(18 4 0(18 Scanning for channels Auto-scan Press the MENU key on the remote control to bring up the OSD. Use the directional keys to navigate and select Channel management. Highlight Auto Scan. Then select Start and press - Acer AT2703 | AT2703 Service Guide - Page 34
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 four wide modes. 4:3 For 4:3 standard pictures, a side bar - Acer AT2703 | AT2703 Service Guide - Page 35
Dimensions 386 + 3 2:( 5 NOTE: Unit: mm Chapter 1 29 - Acer AT2703 | AT2703 Service Guide - Page 36
9*$ $9 6&$57 6&$57 79 Source Options 3,33%3 0DLQ 6XE 79 6&$57 6&$57 $9 9*$ ; 323 9*$ $9 6&$57 6&$57 79 0DLQ 6XE 79 6&$57 6&$57 $9 9*$ 30 Chapter 1 - Acer AT2703 | AT2703 Service Guide - Page 37
Machine Disassembly and Replacement 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 preventing electrostatic discharge - Acer AT2703 | AT2703 Service Guide - Page 38
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 from the system. NOTE: There are several types of screws used - Acer AT2703 | AT2703 Service Guide - Page 39
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 cover shown as arrows then detach it. Chapter 2 33 - Acer AT2703 | AT2703 Service Guide - Page 40
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 shown. 34 Chapter 2 - Acer AT2703 | AT2703 Service Guide - Page 41
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 to main board cable. 5. Disconnect the inverter board to main - Acer AT2703 | AT2703 Service Guide - Page 42
36 Chapter 2 - Acer AT2703 | AT2703 Service Guide - Page 43
Removing the Power Supply Board 1. Release the seven screws fastening the power supply board and the cable then detach the power supply board. Chapter 2 37 - Acer AT2703 | AT2703 Service Guide - Page 44
Removing the PCD Holder 1. Release those screws marked in yellow. 2. Then lift the PCD holder as shown. 38 Chapter 2 - Acer AT2703 | AT2703 Service Guide - Page 45
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 power button board with their corresponding cables. Chapter 2 - Acer AT2703 | AT2703 Service Guide - Page 46
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. 40 Chapter 2 - Acer AT2703 | AT2703 Service Guide - Page 47
Troubleshooting 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 4. If any problem occurs, you can perform visual inspection before you fellow this chapter's instructions. You can check - Acer AT2703 | AT2703 Service Guide - Page 48
Start No Yes Does the unit Power on No power on LCD Fail DDC / POP PIP Fail RF No Signal / HDTV Fail Unit Hang Up Suddenly AV1,AV2,AV3 Speaker No Sound TV Channel Fail Remote Control Fail Button Function Fail Can't Change to Factory Mode 1 2 4 6 8 3 5 7 9 10 42 Chapter 3 - Acer AT2703 | AT2703 Service Guide - Page 49
1 N.G Power Cord Replacement N.G Power Cable Replacement N.G Power Board Replacement N.G Main Bard Replacement END Chapter 3 43 - Acer AT2703 | AT2703 Service Guide - Page 50
2 LCD No Back Light LCD No Display CCFT Cable N.G Replacement N.G LCD Cable N.G N.G Inverter Board Replacement Main Board N.G N.G LCD Panel Replacement LCD Panel Main Board N.G Replacement END END 44 Chapter 3 - Acer AT2703 | AT2703 Service Guide - Page 51
3 N.G Button Board Replacement N.G I/O Board Replacement N.G Main Board Replacement END Chapter 3 45 - Acer AT2703 | AT2703 Service Guide - Page 52
4 N.G Main Board Replacement END 5 IR Cable N.G Replacement IR board N.G Replacement N.G Main Board Replacement END 46 Chapter 3 - Acer AT2703 | AT2703 Service Guide - Page 53
6 N.G IO Board Replacement N.G Main Board Replacement END 7 N.G Button Cable Replacement N.G Button Board Replacement N.G Main Board Replacement END Chapter 3 47 - Acer AT2703 | AT2703 Service Guide - Page 54
8 N.G Power Board Replacement N.G Main Board Replacement END 48 Chapter 3 - Acer AT2703 | AT2703 Service Guide - Page 55
9 N.G Speck Cable Replacement Speaker N.G Replacement N.G Head phone Cable Replacement N.G Main Board Replacement IO Board N.G Replacement END Chapter 3 49 - Acer AT2703 | AT2703 Service Guide - Page 56
10 N.G Button Cable Replacement N.G Button Board Replacement IO Board N.G Replacement N.G Main Bard Replacement END 50 Chapter 3 - Acer AT2703 | AT2703 Service Guide - Page 57
FRU (Field Replaceable Unit) list in global configuration of AT2703. Refer to this chapter whenever ordering the parts to repair service guide. For Acer authorized service providers, your Acer office may have a different part number code from those given in the FRU list of this printed service guide - Acer AT2703 | AT2703 Service Guide - Page 58
Exploded Diagram 52 Chapter 4 - Acer AT2703 | AT2703 Service Guide - Page 59
Item 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 Description LCD bezel assy Power IR LED assy Keypad&AV3 board Speaker Left LCD Translation board Power board Stand assy Shield down Cable IB-GND Cable LVDS Cable MB-AV3 Cable MB-PWR Screw T3 - Acer AT2703 | AT2703 Service Guide - Page 60
Parts The latest parts information will be updated shortly. 54 Chapter 4