Related Manuals for Acer AT4230B
Summary of Contents for Acer AT4230B
- Page 1 Acer AT4230B 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...
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Page 2: Revision History
Revision History Please refer to the table below for the updates of LCD TV AT4230B service guide. Date Chapter Updates 2007/7/20 Chapter 1 ~ 4 1st edition... - Page 3 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...
- Page 4 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.
- Page 5 Conventions The following conventions are used in this manual. SCREEN MESSAGES Denotes actual messages that appear on screen. Gives bits and pieces of additional information related to NOTE the current topic. Alerts you to any damage that might result from doing WARNING or not doing specific actions.
- Page 6 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.
- Page 7 Chapter 1 System Specification Specification LCD Panel Max. resolution: 1366 x 768 Display color: 16.7 M colors Life Time: 60,000 Hours Input Signal: 1-ch LVDS Contrast ratio: 1000:1 ( Min) Brightness: 400 Cd/m² ( Min ) Response Time: Gray to Gray Tr = Tf = 8 ms Viewing angle: 89°...
- Page 8 Compatibility Multi-Sound system NICAM FM Stereo (A2) Power Source Input voltage: 90 ~ 264 V, 47 ~ 63 Hz Power consumption: 291 Watts Stand-by: 5 Watts Max. Remote controllers Multi-function remote controller Speaker Internal speaker: 10 W x 2 Amplifier: 8 W x 2 stereo, volume adjustable Others On screen display adjustment function...
- Page 9 System Block & Wiring Diagram Chapter1...
- Page 10 LCD Main Board Block Diagram Capter1...
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Page 11: Remote Control
Remote Control Key Functions Remote Function description R/C for Australia Key Functions Remark (for cardreader) Power Power On/Off Display Display Channel and Input Source Mute Mute On/Off Analogue TV / Digital TV Component Component1/Component2 AV1/AV2/AV3/HDMI1/HDMI2 Sleep Sleep Timeer Off 15/30/45/60/90/120 Chapter1... - Page 12 Wide Scaling Mode ( 4:3 /16:9 /Panorama /Letterbox ) Menu Open Menu or leave Menu In digital TV mode, press the key to launch EPG main page Enable in Digital TV mode only. 1. In Digital TV mode, Press the key to launch ch list main page.
- Page 13 BILINGUAL Broadcast : Sound 1 / Sound 2 DTV multi-audio selection Volume up Volume up Volume down Volume down Teletext/Mix Teletext on -> Mixed mode on ->Teletext off Index Go to index page (usually page 100) in teletext mode ATV: Enter/Leave subpage mode DTV: Simulated as Right key operation to change sub Subpage page in teletext mode.
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Page 14: Hardware Specification And Configuration
Hardware Specification and Configuration Electro/Optical Model AT4230B Panel specification Resolution(pixels) 1366x768 Brightness(min.) 400 cd/m² Contrast ratio(min.) 1000:1 Display color 16.7 M Viewing angle 178(H)/178(V) Response(typ.) Power supply Input 90-264 V, 47-63 Hz Max. power Consumption 175W Power saving Mechanical Dimensions(WxHxD mm) 983.0x576.0x52.7... -
Page 15: Firmware Specifications
Firmware Specifications Preset Mode for VGA Input 16 factory pre-set modes for VGA inputs are saved during the manufacturing process. Please press "Volume-" + "Channel+" + "POWER" to enter the LCD TV factory mode. Preset Hor. Freq. Vert. Freq. Vertical Pixel Format Hor. -
Page 16: Performance Specifications
1024*768 85 VESA 1280x768 60 VESA 1360x768 60 VESA This LCD TV shall have 10 or more user modes for user to creat own timing. Power Saving While VGA is selected to be input, this LCD TV is equipped with a power-management according to VESA DPMS. - Page 17 Display Area, Phase, Center and Tilt Display Area: 32 inches diagonal H-Phase: A-B Less than 1.5mm V-Center: C-D Less than 1.5mm Tilt: E-F Less than 1.5mm, but non-active area must be larger than zero for four sides. Max. Brightness The brightness should exceed 400 Cd/m while set both of contrast and brightness to max.
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Page 18: Overall Dimensions
second. Power on LED Location and Type Power on indicator shall be easily visible from the front of the display. Inverter The inverter which is used to light up back-light of LCD panel shall be well designed to meet requirement of panel’s specification. -
Page 19: Environmental Requirements
Environmental Requirements This display shall meet the following environmental requirements under normal operating conditions. Operating 25° ± 5° for Purity, White Point, Mis-convergence, Luminance measurements and White uniformity measurement Operating temperature: 0°C to 35°C Operating humidity: 10 % to 90 % ( non-condensing ) Storage and Shipping Storage temperature: -20°C to 60°C Shipping temperature: -20°C to 60°C... - Page 20 B. The unit under test shall be run for a duration of 30 minute in each of following orientations : a. Top and bottom side (z axis). b. Left and right side (x axis). c. Front and rear side (y axis). The unit shall suffer no visible cosmetic damage and should operate no degradation indisplay quality after test.
- Page 21 VESA DDC The VGA/HDMI inputs shall be capable of continuously transmitting its Extended Display Identification ( EDID ) information using Display Data Channel. It shall automatically switch to DDC2 mode if a DDC2 capable host is detected in accordance with the VESA DDC standard. In addition, the display can respond to a request for EDID, to be transmitted using DDC2, level B commands.
- Page 22 For HDMI input (Optional) Product Revision Capter1...
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Page 23: Machine Disassembly And Replacement
Chapter 2 Machine Disassembly and Replacement General Information This chapter contains step-by-step procedures on how to disassemble the AT4220 series for maintenance and troubleshooting. To disassemble the TV, you need the following tools: Wrist grounding strap and conductive mat for preventing electrostatic discharge Small Philips screwdriver Philips screwdriver Hexagonal screwdriver... - Page 24 2. Remove 6pcs screw from base and stand 1. Lay down LCD TV, all tool prepared. cover. 3. Remove 10pcs screws from rear cover and 4. Remove 10pcs screws from rear cover and take off stand cover. take off it. 6.
- Page 25 9. Remove 8pcs screws from shielidng and take off 2pcs cable fasten. 10. Remove 4pcs screws from left speaker. 11. Remove 4pcs screws from right speaker. 12. Remove 3pcs screws from TUNER/B and 2pcs screws from CPU/B. 13. Remove 3pcs IO NUT from IO/B. 14.
- Page 26 17. Remove 3pcs screw from P/B and M/B, then remove 3pcs screws from the IO/B 16. Remove 3pcs screws from KEYPAD/B. bracket. 18. Remove 7pcs screws from M/B and P/B, 19. Remove 4pcs GND screws from P/B, M/B, then take off them. IR/B and BTN, then take off it.
- Page 27 24. Remove 4pcs screws from EMI GASKET UP, then take off them. Chapter2...
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Page 28: Troubleshooting
Troubleshooting Use the following procedure as a guide for Acer LCD TV AT4220 series problems. Note: The diagnostic tests are intended to test this model. Non-Acer products, prototype cards, or modified options could occur false errors and invalid system responses. -
Page 29: Problem List
Problem List 1 Power No Back Light Remote no function Button Key no function RF no Display Component 1,2 no Display AV1,AV2 no Display Speaker no Sound Next Page Chapter3... - Page 30 Problem List 2 Front VGA no Display Page HDMI no Display HDMI no Sound VGA/DVI no sound Component no Sound AV1/S-V no Sound Capter3...
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Page 31: Can Not Power On
Can not power ON Power code Check Power code plug in? Replace P/B or M/B LED Bright? or IO/B or all cable LED Bright Check R.C Replace M/B Green Color? and keypad Replace R.C or IR/B or keypad/B LCD panel Check panel’s Check M/B Replace panel... - Page 32 LCD No Back Light I/V power cable Change I/V had plug in? power cable LCD panel Replace P/B backlight bright? LCD panel backlight bright? Replace LCD panel I/V LCD panel backlight bright? Replace M/B Capter3...
- Page 33 Remote no function Remote control Change battery Have battery? Check IR/B or IR/B cable plug in? Replace IR/B cable Press remote manual key Replace IR/B OSD can display? Press remote manual key Replace M/B OSD can display? Chapter3...
- Page 34 Button Key no function Key board cable Check K/B cable or Plug in? replace K/B cable Press Menu key check Replace K/B cable have function? Press Menu key check Replace K/B cable have function? Capter3...
- Page 35 RF no Display RF cable Check RF cable or plug in? Replace RF cable Replace I/O B RF can Replace M/B Display? Chapter3...
- Page 36 Component 1, 2 no Display Check component cable or Component cable Replace component cable plug in? Replace IO/B Component can display? Replace M/B Capter3...
- Page 37 AV1,AV2 no Display CVBS cable Check CVBS cable or plug in? replace CVBS cable Replace IO/B CVBS can Replace m/B Display? Chapter3...
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Page 38: Speaker No Sound
Speaker no Sound Audio R/L source Check audio R/L had plug in? Source cable Check video cable or Video can display? replace video cable Mute turn off Volume set 50 Speaker R/L Check speaker cable or cable plug in? Replace speaker cable Speaker have Replace IO/B or speaker sound output... - Page 39 VGA no Display VGA cable Check VGA cable or plug in? replace VGA cable Read EDID data Write EDID data EDID data normal? VGA can display? Replace M/B Chapter3...
- Page 40 HDMI no Display Check HDMI cable or Plug in HDMI cable? replace HDMI cable Read EDID data EDID data normal? Write EDID data HDMI can display? Replace M/B Capter3...
- Page 41 HDMI no Sound Check HDMI cable HDMI cable plug in? or replace HDMI cable Read EDID data EDID data normal? Write EDID data Sound output? Replace M/B Chapter3...
- Page 42 VGA no sound Check video cable or PC can display? PC or replace VGA cable Mute turn off Volume set to 50 Audio line in Check line in cable or Cable plug in? Replace line in cable Sound normal? Replace M/B Capter3...
- Page 43 Component no Sound Check component cable or Component Replace component cable cable plug in? Mute turn off Volume=30 Earphone remove Check component cable or Component Replace component cable Source can display Component Replace IO/B Sound normal? Component Sound normal? Replace M/B Chapter3...
- Page 44 AV1/S-V no Sound AV1/S-video/R-L Check video and R-L cable Cable plug in? Or replace video or R-L cable Mute turn off Volume =30 Earphone remove AV1/S-video source Check video and R-L cable Can display? Or replace video or R-L cable AV1/S-video source Replace IO/B Can display?
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Page 45: Fru (Field Replaceable Unit) List
Note: To scrap or to return the defective parts, you should follow the local government ordinance or regulations on how to dispose it properly, or follow the rules set by your regional Acer office on how to return it. - Page 46 PARTS Part Name Description TVE Part No. Acer Part No. Accessory REMOTE REMOTE CONTROLLER (EURT54B006) GP DQ754B00600 25.M4307.001 BATTERY BATTERY LR03GW/2SK (ALKALINE 1.5V) GP AHDALR03006 IO LABEL IO LABEL AU+DTV HV4(HCHV4009,REV3A) GP HCHV4009010 40.M4307.001 BOARD MAIN/B HV4E M/B ASSY(FOR 74PA)AU GP 21HV4MB0020 55.M4307.001...
- Page 47 IO LABEL IO LABEL AU+DTV HV4(HCHV4009,REV3A) GP HCHV4009010 40.M4307.001 RTG LABEL RTG LABEL HV4(HCHV4002,3B)ACER AT4220 GP HCHV4002016 BOX LABEL BOX LABEL(130WX150L)VT1(HCVT1004,R3A) GP HCVT1004017 MISCELLANEOUS CLAMP AUO-R/L HX4 CLAMP AUO-R/L HX4(FBHX4002,REV3A) GP FBHX4002011 47.M34V7.001 CLAMP AUO-D HX4 CLAMP AUO-D HX4(FBHX4003,REV3A) GP FBHX4003017 47.M34V7.002...
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Page 48: Exploded Parts List
Exploded parts list ACER PART ITEM PART NAME DESCRIPTION LCD BEZEL ASSY HV4 LCD-BEZEL ASSY GP 60.M34V7.001 LCD BACK COVER ASSY AH4T BACK COVER ASSY GP 60.M34V7.002 LCD STAND ASSY HV4 STAND ASSY GP 60.M34V7.003 LCD STAND COVER STAND COVER HX4(EAHX4004,REV3B) GP 42.M34V7.001...