Acer X233H Technical Information

1 Acer X233H Service Guide

10 LCD Panel Specification of X233H General Specifications Block Diagram TFT LCD Module

11 Back light Unit Electrical Characteristics

12Optical Specifications

13Factory Preset Timing of X233H VESA MODES Horizontal Vertical Mode Resolution Total Nominal Frequency+/- 0.5kHzSync PolarityNominal Freq. +/-

14Monitor Block Diagram The LCD MONITOR will contain a main board, a power board, a usb board and a key board which house the flat panel control logi

15Main Board Diagram Flash Memory SST25VF010A-33-4C-SAE (U402)Panel Interface (CN301)Crystal 12MHz (X401) Keypad Interface (CN402)

16Software Flow Chart N Y 12NY5Y N 10Y N12Y N 7YN64389141113YN15YN16 1719Y N 18

17Remark: 1) MCU initializes. 2) Is the EEPROM blank? 3) Program the EEPROM by default values. 4) Get the PWM value of brightness from EEPROM. 5)

18Main Board Layout Symbol Description Symbol Description U401 IC NT68667UFG/C QFP-128L CN402 WAFER U703 IC AP1117D33L-13 TO252-3L DIODES CN7

19Installation

2Service Guide Version and Revision Version Release Date Revision History Customer model TPV model A00 Dec.-02-2008 Initial Release X233H TDRSND

20

21Operating Instructions Press the power button to turn the monitor on or off. The other control

22eColor Management (OSD) Operation instructions Step 1: Press “ Key” to open the Acer e-Color Management OSD and access the scenario modes Step 2:

23How to Adjust a Setting

24Adjusting the picture

25

26How To Optimize The DOS-Mode Plug And Play Plug & Play DDC2B Feature This monitor is equipped with VESA DDC2B capabilities according to the VES

27Machine Disassembly This chapter contains step-by-step procedures on how to disassemble th

28 3． Remove the lamp connectors and remove the screws to remove the panel. Put attention to the LVDS cable. 4. Remove the screws t

29 5. The panel

3Copyright Copyright © 2003 by Acer Incorporated. All rights reserved. No part of this publication may be reproduced, Transmitted, transcribed, store

30Troubleshooting This chapter provides troubleshooting information for the X233H: 1. No P

312. No Picture (LED is orange) No picture The button if under control X401 oscillate waveform is normal Replace U401 Repl

323. Panel Power Circuit White screen Measure Q302 base is low level? X401 oscillate waveform is normal Check CN301is solder and Q30

334. Key Board OSD is unstable or not working Is Key Pad Board connecting normally?Connect Key Board Is Button Switch normall

345. Power Board 1) No power Check CN902 PIN3, 4 = 5VCheck AC line volt 110V or 220V Check AC input Check the voltage of C905 (+) Check bridge rec

352.) No Backlight Check if the input voltage of inverter part is 16V NGOKCheck adapter part Check ON/OFF signal Check Interface board NGOKCheck I

36Connector Information Chapter 5

37FRU (Field Replaceable Unit) List This chapter gives you the FRU (Field Replaceable Unit) listing in global configura

38 ITEM PART NO. DESCRIPTION Q`TY 1 BEZEL L23WA-8ACER3-S4 A34G1084 RXA1B0130 1 2 KEY BUTTON Q33G0237 RX 1L0100 1 3 LED LENS A33G0270 1 1L01

39Part List Above picture show the description of the following component. Picture Description Part No. Main_frame_Sam A15G0563101102 Bezel A3

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

40Main Board CBPCRNDAEQ1 Key Board KEPC7QK1 Stand Front A34G0473 RX 1B0100 Base A34G0475 RX 1B0130 Stand Rear A34G0474 RX 1B0100

41Hinge A37G0050 4 USB BOARD USB7QK4

42Schematic Diagram Main Board 16273849511121314151017 16CN10

43+5V+C305100uF25VR30447K 1/16W 5%R30310K 1/16W 5%C3020.1uF/16VPANEL_VCCT0MT0PT1PT1MT2MT2PTCLK1PTCLK1MT3MT3PT4PT4MT5PT5MR301330 OHM 1/4WT6MT6PTCLK2P

44DSUB_5VC711NC/0.1uF/16VD701SM340A312D702BAT54C1 2FB701300 OHME5VCCADJ1Vout2Vin3U702NC/AIC1117A-18PE5VCCR710 NCC710NCR707 NCR703 NCPANEL_ID#C703NCVC

45EE_WPT0MT0PT1MT1PT2PT2MT3MT3PTCLK 1PTCLK 1MT4MT6MT4PT7PT5PTCLK 2MT6PT7MTCLK 2PT5MMUTER454 NCSPI_SISPI_CKR467NC/0R05 1/16W+5VR465NC/10K 1/16WC4130.

46Power board R903100K OMH 2W +-5%L904CoilACERR92710K 1/10W 1%+5V+16V+5VC9211000pF 250VQ903KTD1028C9120.001uF1423L90127mHR962 100 OHM 1/4W1234567891

47C8100.0033uF62751 8PT801POWER X'FMRACERS21G22S13G14D15D16D27D28Q806AO4620VSEN1SSTCMP2CT3RT14GNDA5PDR26GNDP7NDR28NDR19PDR110VDDA11TIMER12PWM13

48SHUTDOWN1BYPASS2RIN-3GND4GND5LIN-6VOLUME7SE/BTL8LOUT-9VDD10LOUT+11GND12GND13ROUT+14VDD15ROUT-16IC601APA2069JITULC6140.1uF/16VLOUT-ACERLinRinQ608MMB

49Key board GNDR002 2K OHM 1% 1/10WAUTOLBADC1VOL-(2K)POWERMENU(2K)(GND)(1K)LBADC2VOL+0 VAUTOLBADC1R004 2K OHM 1% 1/10WLBADC2MENULED_GRN#LED_RED#chan

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

50Usb board C7880.1uF16VC7890.1uF16VC7900.1uF16VC7910.1uF16VC7920.1uF16VR767NC/ 22K 1/10WC7791uF/25V+C778470uF/25VDM2DP2C71010.1uF16V1 2ZD711EGA10603

6Table Of Contents Chapter 1 Monitor Features ………………………………………… 7 Introduction ……………………………………… 7 Electrical Requirements …………………………………

7Monitor Features Introduction Scope This short specification describes the electrical, o

8Electrical Requirements of X233H Standard Test Conditions All tests shall be performed under the following conditions, unless otherwise specified.

9LCD Monitor General Specification Model name X233H Driving system TFT Color LCD Active Display Area 509.76 (H) × 286.74(V) Pixel pitch 0.2655(H