Acer AT2231 Service Manual

1 Acer AT2230 & AT2231 Service Guide

10 Factory Preset Display Modes: Analog RGB Signal Timing

11 LCD TV Panel Specification The M220Z1-L03 model is a 22 inch wide TFT-LCD module with a 4-CCFL Backlight Unit and a 30-pin 2ch-LVDS interface.

12 Optical Specifications Test Conditions Optical Specifications

13 Connecting Peripherals Front panel controls Chapter 2

14 Remote Control & OSD Operating instructions Using the Remote Control . Chapter 35 e (Empowering

15 Teletext 1 Colour buttons (R/G/Y/B) Operates corresponding button on the teletext page. 2 INDEX Press to go to the index page. 3 SUBTITLE Press

16Using the OSD Menus

17

18

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2 Service Guide Version and Revision Version Date Revision History TPV Model Name A00 Jul.-23-08 Initial release E228M3NBWAZANN A01 Aug.-03-08

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22How To Optimize The DOS-Mode Plug And Play Plug & Play DDC2B Feature This monitor is equipped with VESA DDC2B capabilities according to the VE

23Machine Disassembly This chapter contains step-by-step procedures on how to disassemble t

24Disassemble the back cover 1. Remove four screws to remove back cover. (Fig 4) (Fig 4) Remove the Shielding-EMI (Fig 5)

25Remove the main board, power board and key board. 1. Release all the connecting wires marked in blue for these boards. (Fig 6) 2. Remove the screw

26Remove the main frame Remove the four screws marked in red to remove the main frame. (Fig 10) (Fig 11)

27Trouble Shooting No picture (LED orange)

28Abnormal display Check TV system setup Check the source Reset source NGCheck signal filter circuit

29No sound Check the source Reset source NG OK Check input signal TV SIF Check TV system Reset TV system NG Check TU101NG

3Copyright Copyright 2003 Acer Technology Corp. All rights reserved. This manual may not, in whole or in part, be copied, photocopied, reproduced

30No Power (No LED indicator) Check bridge rectified circuit and F901 circuit Check R904, R905 and Cha

31W / LED, No Backlight Check 12V input NGOKCheck adapter or MB Check ON/OFF Check Interface board

32Key Board OSD is unstable or not workingIs Key Pad Board connecting normally?Connect Key Pad Board Is Button Switch normally? Replace B

33Upgrade Firmware 1. Using USB port connecting PC & MST99980 Board via ISP board as belo

343. Click the button “Connect”, if it can identify the type of the device, please click the “Dis Con” and then click the “Connect” again.

354. Click the button “Read” to load the software file and then click the “Auto”.

365. When the picture showed as below, we can click the “run” to finish to upgrading.

37White-Balance, Luminance Adjustment Approximately 30 minutes should be allowed for warm up before proceeding

38store those values to NVM. White- Balance alignment: 1. Select source as “HDMI1” 2. Apply Flat pattern (100% white pattern), at FAC mode menu, sel

39PC mode display adjustment WHITE-D adjustment (B) General set-up: Equipment Requirements: Minolta CA-110 or Equivalent Color analyzer Chroma

4 Preface Before using this information and the product it supports, please read the following general information. 1. This Service Guide provides you

40FRU (Field Replaceable Unit) List This chapter gives you the FRU (Field Replaceable Unit) listing in gl

41Part List Above picture show the description of the following component. Item Picture Description 1 Bezel 2 Panel 3 Base 4 Power Board

425 Main Board 6 Key Board 7 IR Board 8 Speaker

43EDID Data DDC DATA for D-Sub Input

44PCB Layout Main Board Chapter 9

45

46Power Board

47Key Board IR board

48Schematic Diagram Main Board SV_C0 8C177560pFR201NCAUR0_COM 8SIFP0 8AV1D111VPORT060

49R15512K OHM 1/10WR14475 OHM 1/8WTV CVBS OutputR15647K OHM 1/10W+5VR1674.7K OHM 1/10WC1200.047uFAUR1 8C139NCR1621.5K OHM 1/10WSC_CVBS 8AUDIO_OUT_Lc

5Precautions z Do not use the monitor near water, e.g. near a bathtub, washbowl, kitchen sink, laundry tub, swimming pool or in a wet basement. z D

50 D101BAT54C312G-RXDD102NCRIN+ 8VSIR835 10K OHM 1/16WR1224.7K OHM 1/16WVGA5V R11475 OHM 1/8WR8330 OHM 1/8WR1214.7K OHM 1/16WDDC_SCLC19622pFR1202.

51SUBCEC 12R534 5R6 1/16WHDMI_WP 5,8HDMI_RX0-_3HD_+5V2HDMI_RX1-_3HDMI_RX0+_3Q501PMBS3904C510NCR537 5R6 1/16WR523 0 OHM 1/10WR5204.7K OHM 1/10WSDA_HD

52R1054.7K OHM 1/10WRXO2-RXO0+CN108CONN246810121416182022242628301357911131517192123252729RXO0+ 8RXE2-Q102PMBS3904RXO0-RXE0+RXO1-RXE3- 8RXO3+RXE3-

53HDMI_002-_3PWM2HPLUGAHDMI_000+_3R426100 OHM 1/10WRXO1+X40114.318MHZR4544.7K OHM 1/10WR415 22 OHM 1/10WGIN+5RXOC+ 7VIDEO INPUTAD[7]-->UART_RX0;W

54BA0ADR6DMQADR9MDATA9MADR8ADR10CKE 8DMQADR7CASZMMCLK8R46810K OHM 1/10WR460 22 OHM 1/10WMDATA12DMCFB403600 OHMDMQDATA121.0Acer AT1930/2230A4912Tue

55 EAR_DETC63710uF/16VR69122K OHM 1/10WU604NDC7002N123456G1S2G2D2S1D1R67122K OHM 1/10WAUOutL18C6081uFR604NCA-PLOPR67724K OHM 1/10WD603LL4148D608BAV7

56+12VC7010.001uFFB718300 OHMFB709300 OHMR730NCPS:when Io=4.3A then IC shutdown+24VPD701SR34+C710330UF16VPin14, Pin39, Pin58,Pin254+5VP+5V_STBQ705

57R4844.7K OHM 1/16WQ404RK7002REMOTE_IN 8R4910 OHM 1/16WR8084.7K OHM 1/16WC4410.1uF25VR813NCQ403RK7002C44320PFR48533 OHM 1/10WI2C_SCL 3,8+3.3_SUBOSC

58Power board HS1HEAT SINK(Q901)12!93G 60268YG865C15RSCD904SP1010093G 60267123L9043.5uH67G215S1024KVC9290.001uFR925150R 1/8WC9062200pF 2KVD90606

595VD803LL4148C82156pF/3KVC819,C820,C821,C822L802L1243KB33Wednesday , April 09, 2008715T2783-1-3OD M MODEL03.INVERTERT2783-1-3-X-3-080409OEM MODEL S

6 Table Of Contents Monitor Features ……………………………………… 7 General Specifications ……………………………………… 7 LCD TV Description ……………………………………… 8 Precautions

60Key board R0064.3K OHM 1% 1/10W1.73V( Front )SOURCESW0012 1345SW0052 1345Vol-MENUPowerSW0062 1345SW0042 1345R004470 OHM 1% 1/10WCH

7Monitor Features General Specifications Chapter 1

8 LCD TV Description The LCD TV will contain a main board, a power board a function keyboard and an IR board. The main board and power board will hou

9D-SUB PIN Distribution This procedure gives you instructions for installing and using the LCD TV display. (1) Position the display on the desire