Acer AT3220A/3220B/3220 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.
Revision History Please refer to the table below for the updates made on Acer LCD TV AT3220/3220A/3220B service guide. Date 2006/08/08 II Chapter Chapter 1 Updates Revise PIP/PBP/POP supporting configuration on page 37.
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. Disclaimer The information in this guide is subject to change without notice.
Conventions The following conventions are used in this manual: IV 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.
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).
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Chapter 1 System Specifications Features This LCD TV was designed with the user in mind. Here are just a few of its many features: LCD Panel T Max. resolution: 1366x768 T Display area: 32 inches diagonal T Display color: 16.7 M colors (8 real bits per color) T Life time: 60,000 hours T Input Signal: 1-ch LVDS T Contrast ratio: 1200:1 ( Typ ) T Brightness: 200 cd/m2 ( Typ ) T Response Time: AUO Typ.
Speaker 2 T Internal speaker: 10 W * 2 stereo, volume adjustable T Amplimfier: 8W * 2 stereo, volume adjustable Chapter 1
System Block Diagram System Block and Wiring Diagram PANEL INVERTER I/O Board POWER Module MAIN Board A-Tuner AV 1 AV 2 Component1 Component2 SPEAKER IR Receiver Key Board LCD Main Board Block Diagram Chapter 1 3
Board Layout Cable Arrangement No.
LCD TV Overview A general introduction to Acer LCD TV ports, functions and indicators. AT3220A/AT3220B/AT3220 Front panle view The panel view below is for AT3220A/AT3220B/AT3220. 1 2 3 4 5 # Item Description 1 Power On/Off Power on or off the LCD TV. 2 Menu key Turn s the OSD menu On and OFF. 3 Channel up/down 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.
T3220A Rear panel view 1 2 3 # 6 4 5 6 7 Item 8 # 9 Item 1 Power switch 6 PC Audio-in 2 AC-in 7 AV-Audio L/R + COMPONENT 1/2 3 HDMI 8 AV-Audio L/R + CVBS 1/2 4 VGA-in 9 Analog antenna 5 DVI-d Chapter 1
AT3220B Rear panel view 1 2 3 # Chapter 1 4 5 6 7 Item 8 # 6 9 Item 1 Power switch Audio L/R + CVBS + COMPONENT 2 AC-in 7 Audio L/R + CVBS + COMPONENT 1/2 3 HDMI 8 Audio L/R + CVBS 1/2 + S-Video 4 VGA-in 9 Analog antenna 5 PC Audio-in 7
AT3220 Rear panel view 1 2 # 8 3 4 5 6 Item 7 # 8 Item 1 Power switch 5 PC Audio-in 2 AC-in 6 AV-Audio L/R + CVBS + COMPONENT 3 HDMI 7 SCART 4 VGA-in 8 Analog antenna Chapter 1
AT3220A Remote controller General Keys 1 2 3 4 5 6 8 7 9 10 12 14 11 13 16 15 17 18 No. 1 19 20 21 Item Description POWER Press to turn your TV on/off. 2 DISPLAY Press to display input/channel information (dependent on input/source type). 3 MUTE Press to toggle audio on and off. 4 Input buttons (TV/AV/ COMPONENT/PC) Press to select correct input mode.
10 8 ENTER Press to confirm channel number selection. 9 MENU Press to open or close the Menu. 10 CC Press to select close caption and text service between CC1, CC2, CC3, CC4, Text1, Text2, Twxt3, Text4. 11 Directional keys/OK N/A 12 WIDE Press to toggle scaling mode between 4:3; 16:9, Panorama and Letterbox 1, 2, 3 modes. 13 MTS Press to switch the sound system between stereo, main and SAP. Information is displayed in the top right-hand corner.
AT3220B Remote controller General Keys 1 2 3 4 5 6 8 7 9 10 12 14 11 13 16 15 17 18 No. 1 19 20 21 Item Description POWER Press to turn your TV on/off. 2 DISPLAY Press to display input/channel information (dependent on input/source type). 3 MUTE Press to toggle audio on and off. 4 Input buttons (TV/AV/ COMPONENT/PC) Press to select correct input mode.
8 ENTER Press to confirm channel number selection. 9 MENU Press to open or close the Menu. 10 TTX/MIX (TELETEXT/MIX) Press to return to the previous channel. 11 Directional keys/OK N/A 12 WIDE Press to toggle scaling mode between 4:3; 16:9, Panorama and Letterbox 1, 2, 3 modes. 13 MPX Press to select the sound input, displayed in the top right-hand corner (mono, stereo, bilingual). 14 e (Empowering Technology) Press to activate Acer Empowering Technology.
AT3220 Remote controller General Keys 1 2 3 4 5 6 8 7 9 10 12 11 13 15 14 No. 1 Item Description POWER Press to turn your TV on/off. 2 DISPLAY Press to display input/channel information (dependent on input/source type). 3 MUTE Press to toggle audio on and off. 4 Input buttons (TV/AV/ SCART/PC) Press to select correct input mode. 5 SLEEP Press to set a time period after which the TV will switch itself to standby (15, 30, 45, 60, 90 or 120 minutes).
12 WIDE Press to toggle scaling mode between 4:3; 16:9, Panorama and Letterbox 1, 2, 3 modes. 13 MPX Press to select the sound input, displayed in the top right-hand corner (mono, stereo, bilingual). 14 VOL (+/-) Press to increase or decrease the volume. 15 CH (up/down) Press to sequentially select the TV channel. Teletext 1 2 7 3 No. 14 4 5 Item 6 Description 1 Colour buttons (R/G/Y/B) Operates corresponding button on the teletext page.
Basic connection Connecting the power cord 1. Connect the AC cord into the AC input on the back of the set. 2. Connect the male 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. Getting started watching your TV 1 2 4 1 3 1 1. Select the setup language you prefer. 2. Please select country. 3. Ensure that your co-axial cables connected correctly before proceeding.
4. Scan for analog channels. 5. Setup is now complete. You are ready to begin watching TV. If you leave the setup process before it is complete, you will be given a choice of options: 1. Resume setup 2. Resume setup wizard at next startup 3. Exit and do not remind me Select an option and press OK to exit. No. 1 Description Power a. Turn on the power switch beneath the screen. b. Press the power button, number keys or channel up / down button on the remote control.
Connecting external audio/video device Connecting a DVD, VCR, STB or audio/video equipment Connect your DVD player, VCR or audio/video equipment using the SCART port located at the rear of your LCD TV as shown below.
For AT3220B: Chapter 1 Y Yellow R Red W White Blue Green 6 6 YLGHR 19
For AT3220: Source-IN Y Yellow R Red W White Blue Green * Acer recommends the following priority for connection types: HDMI -> COMPONENT -> SCART -> Composite. TV-OUT *SCART-out only works with analog broadcasts. Connecting a camera, camcorder, video am or headphones Connect your camera or camcorder to the video/audio ports on the rear of the TV set as shown below.
Connecting a PC or notebook computer To display PC output on your TV, connect your PC or notebook computer to the TV as shown below. For AT3220A: NOTE: For VGA and DVI input, Acer recommends setting your PC’s external monitor resolution to 1360 x 768 pixel @ 60 Hz.
For AT3220: 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.
For AT3220A/AT3220B: No TV AV 1 2 COMPONENT 3 Item PC 4 Input Button Guide 1 TV key Toggle Analog TV (ATV) between input sources. 2 AV key Toggle AV1, AV2, AV3-CVBS* and HDMI between input sources. 3 COMPONENT key Toggle COMPONENT 1, COMPONENT2 and AV3-COMPONENT* between input sources. 4 PC key Toggle VGA between input sources. For AT3220: 1 No Item 2 3 4 Input Button Guide 1 TV key 2 AV key Toggle AV1, AV2, AV3-CVBS* and HDMI between input sources.
OSD navigation Many of the advanced settings and adjustments are available through using the OSD (onscreen display) menus, as shown in the example screenshot below. Basic operations required to navigate these menus (Picture, Audio, Channel management, Options, Settings and Empowering) are described in this section. Navigating the OSD with the remote control NOTE: You can also interact with these menus using the front panel controls. Please see “Front panel view” section for AT3220A. No.
Adjusting the OSD settings The OSD can be used for adjusting the settings of your LCD TV. Press the MENU key to open the OSD. You can use the OSD to adjust the picture quality, audio settings, channel settings, options, general settings, and Empowering Technology. For advanced settings, please refer to following page: Adjusting the picture quality 1 Press the MENU key to bring up the OSD. 2 Using the directional keys, select Picture from the OSD. Then navigate to the picture element you wish to adjust.
NOTE: The options available on the OSD may vary depending on the TV signal source.
Empowering Technology Less than 2 seconds Default setting in different mode Set-up Empowering mode More than 2 seconds The Empowering Key opens up the Acer Empowering Technology functions. In TV mode, the choice is between Scenario mode and Favorite channel. Set-up Empowering mode To change your Empowering Key’s default setting: 1 Press and hold the Empowering Key for more than two seconds to open the menu.
Default 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 pre-defined audio and video settings for optimal enjoyment of the following scenarios: Standard TV, Movie, Sport, Concert, Game, User. Pressing the Empowering Key for less than two second will toggle between the different modes.
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 ot navigate these menus (Picture, Audio, Settings, Options, Empowering) are described in this section. The first time you access the OSD, you will be asked to choose your language settings. NOTE: You can also interact with these menus using the front panel controls.
Teletext Most TV channels also broadcast information via the teletext feature. This Acer LCD TV has 252 pages of memory which will store pages and subpages, thereby reducing waiting time. The teletext buttons on the remote control are listed below. Item 30 Description INDEX Go to index page SUBTITLE Show subtitle on the screen TELETEXT Press to switch from TV/AV to Teletext mode. REVEAL Press to reveal hidden teletext information.
Advanced Features PIP/PBP/POP Press the PIP/PBP 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 POP screens will display the TV Channel programs on by one. T T T PIP POP POP POP PBP POP POP PIP (Picture-in-Picture) PBP (Picture-by-Picture) POP (Picture-on-Picture) NOTE: The OSD menu is not available in PIP/POP/PBP modes. 1a.
1a. Press the ACTIVE key to toggle between PBP screens. TV AV COMPONENT 1b. Press the TV, AV, COMPONENT or PC keys, number keys or CH up or down to change the content of the active screen. PC PBP 2. Press the SWAP key to change the content between the primary and the PBP screen. PBP Swap PBP 1a. Press the ACTIVE key to toggle between POP screens. 1b. Press the number keys or CH up or down to change the TV channel on the active screen. POP 1+5 POP POP 2.
to enable this feature: Setting a personal PIN Press the MENU key on the remote control to bring up the OSD. 1 2 Use the directional keys to navigate to the (see note) Settings menu. Then select Set PIN. 3 Enter a four-digit password. Type it again and press OK to reconfirm. 4 Press MENU to exit. Locking your TV Press the MENU key on the remote control to bring up the OSD. 1 2 Use the directional keys to navigate to the 3 Enter your PIN. Type it again and press OK to reconfirm.
Hardware Specifications and Configurations Electro / Optical 1. Size of screen 32 inches for AT320A/AT3220B/AT3220 2. LCD panel supplier AUO 3. Screen aspect ratio 4. Type of screen TFT with Super MVA technology or SIPS or QSV 5. Screen resolution 1366 x 768 6. Display colors 16.7 M colors (8 real bits per color) 7. Chromaticity Red Green Blue White 8. Color temperature Five models are adjustable, Cold Middle-cold Standard Middle-warm Warm 0.335 0.597 0.065 0.
Mains 1. Power supply electrical specification The power supply for this product is an internal converter, with a non-replaceable fuse internally. This converter is designed to meet CE mark requirement. • Input voltage and frequency range: The operating range of line voltage is AC 90 volts to 264 volts, 47Hz to 63 Hz. • Input current: 2.2A • Line fuse: The AC input is fused and becomes electrically open as a result of an unsafe current condition.
Hard / Soft Performance 1. Languages supported Czech, Danish, Dutch, English, French, German, Italian, Polish, Portuguese, Russian, Spanish and Swedish 2. Starting time A correct picture (color, aspect ratio, stability) can be displayed <6 second after power on 3. Wake-up behaviour The system can be waken up if the button Standby is pressed (keypad “power” or remote control “power”, “0 ~ 9”, “CH +/-”). 4.
PIP/PBP AV2 Component 2 VGA DVI X X X X X O X X X X X X X O X AV2 X X X X X X O X HDMI X X X X X X O X Component 1 X X X X X X O X X X X X X X O X VGA O O O O O O X O DVI X X X X X X O X Component 2 Component 1 AV1 X Sub HDMI TV TV AV1 Main • O: support X: not supprot POP (1+5, 1+12) Main and Sub Screen Combination ( , ) AV2 Component 2 VGA DVI X X X X X O X X X X X X X X X AV2 X X X X X X X X
14. Video management • User adjustments: contrast, brightness, color, tint (NTSC), sharpness • Color temperature: cold, middle-cold, standard, middlewarm, warm 15. Aspect ratio • Aspect ratio available for all the video sources • 4/3, 16/9, panorama, letterbox1, letterbox2, letterbox3 NOTE: PC & DVI only support 4/3 & 16/9 16. Scenario functions Settings: Noise reduction: 17. Audio management User adjustment: 18. Audio enhancement Stereo, SRS, WOW, BBE 19.
Environmental Requirements The TV shall meet the following environmental requirements under normal operating conditions. 1. Operating 25o +/- 5o for purity, white point, mis-convergence, luminance measurements and white uniformity measurement Operating temperature: Operating humidity: 0oC to 35oC 10% to 90% (non-condensing) 2.
Drop Test The packaged display shall be capable of passing drop test as specified in following specification without any measurable degradation in performance or detectable mechanical or cosmetic damage.
Chapter 2 Machine Disassembly and Replacement This chapter contains step-by-step procedures on how to disassemble the notebook computer for maintenance and troubleshooting. To disassemble the computer, you need the following tools: T Wrist grounding strap and conductive mat for preventing electrostatic discharge T small Philips screwdriver T flat head screwdriver T Philips screwdriver T tweezers NOTE: The screws for the different components vary in size.
General Information Before You Begin Before proceeding with the disassembly procedure, make sure that you do the following: 42 1. Turn off the power to the system and all peripherals. 2. Unplug the AC adapter and all power and signal cables from the system. 3. Remove the battery pack.
Disassembly Procedure Flowchart The flowchart on the succeeding page gives you a graphic representation on the entire disassembly sequence and instructs you on the components that need to be removed during servicing. For example, if you want to remove the system board, you must first remove the keyboard, then disassemble the inside assembly frame in that order.
Disassembling Steps 1. Remove the six screws fastening the stand to the LCD TV, then remove the stand. 2. Remove the twenty screws (10 are T4*12 highlighted in red; 2 are M4*8 highlighted in yellow) holding the back cover then remove the back cover carefully. 3. To remove the EMI shielding, you should remove 11 screws holding the EMI shielding. First remove two screws on the left side as shown. 4. Remove three screws holding the EMI shielding as shown. 5.
14. Remove three screws fastening the power support bracket. 15. Then remove another three screws holding the power support bracket on the right side as shown and remove the power support bracket. 16. Remove the two screws holding the bracket on the right side as shown and remove the bracket. 17. Then remove the two screws fastening the bracket on the left side and remove the bracket. 18. Remove the eight screws (four on each side) fasteing the R/L speakers and remove the speakers. 19.
25. Remove the two screws holding the IR board then disconnect the cables and remove the IR board. 26. Remove the four screws fastening the speaker on the right side. 27. Remove the four screws fastening the speaker on the left side then take out the speaker set. 28. Remove the three screws holding the button board to the main unit then disconnect the cables and remove the button board. Now you have completed the LCD TV disassembly.
Chapter 3 Troubleshooting Use the following procedure as a guide for Acer LCD TV AT3220A/AT3220B and AT3220 problems. NOTE: The diagnostic tests are intended to test this model. Non-Acer products, prototype cards, or modified options can give false errors and invalid system responses. 1. Duplicate symptom and obtain the failing symptoms in as much detail as possible. 2. Distinguish symptom.
AT3220A Troubleshooting Guideline 1.
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Chapter 4 FRU (Field Replaceable Unit) List This chapter gives you the FRU (Field Replaceable Unit) listing in global configurations of AT3220A/AT3220B/ AT3220. Refer to this chapter whenever ordering for parts to repair or for RMA (Return Merchandise Authorization). Please note that WHEN ORDERING FRU PARTS, you should check the most up-to-date information available on your regional web or channel. For whatever reasons a part number change is made, it will not be noted on the Service Guide.
AT3220A Exploded Diagram 64 Chapter 4
AT3220A/AT3220B/AT3220 FRU List Picture Part Name (Description) Part Number ACCESSORY REMOTE CONTROLLER - USA 25.M25V7.001 REMOTE CONTROLLER - EU 25.M28V7.001 REMOTE CONTROLLER - AUS 25.M38V7.001 POWER BOARD 55.M25V7.001 FUNCTION BOARD 55.M25V7.002 IR BOARD 55.M25V7.003 IO/TURNER BOARD - PAL EU 55.M12V7.004 IO/TURNER BOARD - NTSC NA 55.M28V7.
AT3220A/AT3220B/AT3220 FRU List Picture Part Name (Description) Part Number IO/TURNER BOARD - PAL AUS 55.M12V7.005 MAIN BOARD - PAL EU FOR AU 55.M25V7.005 MAIN BOARD - NTSC NA FOR AU 55.M28V7.002 MAIN BOARD - PAL AUS FOR AU 55.M38V7.001 LVDS CABLE - PANEL TO MB FOR AU 50.M25V7.001 INVERTER CABLE 3 CON (14P/4P/10P) FOR AU 50.M25V7.
AT3220A/AT3220B/AT3220 FRU List Picture Part Name (Description) Part Number CABLE - MB TO POWER BOARD 10P 50.M25V7.003 CABLE - ADUIO TO POWER BOARD 8P/7P 50.M25V7.004 CABLE - MB TO KEY TO IR TO LED 50.M25V7.005 SPEAKER CABLE 50.M12V7.005 GROUND CABLE 50.M12V7.007 POWER CORD EU 3 PIN 27.L13VE.007 POWER CODE ITALY 3P 1.8M 27.M03V7.001 POWER CORD SWISS 3 PIN 27.M11V7.001 POWER CODE US 3P 1.8M 27.M03V7.004 POWER CODE - AUSTRALIA 27.M12V7.
AT3220A/AT3220B/AT3220 FRU List Picture Part Name (Description) Part Number FRONT BEZEL ASSY 60.M25V7.001 BACK COVER ASSY 60.M25V7.002 STAND ASSY 60.M25V7.003 LCD SUPPORT BRACKET - L 33.M25V7.001 Note: The picture shows left and right LCD support bracket. Left LCD support bracket is on the lower side. LCD SUPPORT BRACKET - R 33.M25V7.002 Note: The picture shows left and right LCD support bracket. Right LCD support bracket is on the upper side. 68 SIDE FIXED - L 33.M25V7.
AT3220A/AT3220B/AT3220 FRU List Picture Part Name (Description) Part Number SWITCH BRACKET 33.M25V7.005 EMI SHIELDING 33.M25V7.006 STAND SUPPORT BRACKET 33.M25V7.007 FUNCTION KEY 42.M25V7.001 PCB HOLDER - PAL EU 33.M25V7.008 Note: The spare part- PCB Holder is without sponge. Please detach the spone and attach the new PCB holder if you ever change this part. PCB HOLDER - NTSC NA 33.M28V7.001 Note: The spare part- PCB Holder is without sponge.
AT3220A/AT3220B/AT3220 FRU List Picture Part Name (Description) SPEAKER ASSY - L Part Number 23.M25V7.001 Note: The picture shows left and right speaker. Left speaker is on the left side. SPEAKER ASSY - R 23.M25V7.002 Note: The picture shows left and right speaker. Right speaker is on the right side. LABEL POWER LABEL 40.M25V7.001 I/O TURNER LABEL -PAL EU 40.M25V7.002 I/O TURNER LABEL - NTSC US 40.M28V7.002 I/O TURNER LABEL - PAL AUS 40.M38V7.001 PANEL CONTACT PAD 47.M01V7.
AT3220A/AT3220B/AT3220 FRU List Picture Part Name (Description) CARTON CLASP VW7(JXVW7001,3A) Chapter 4 Part Number 47.M08V7.
