Acer V203W Technical Information

1 Acer V203W Service Guide http://www.wjel.net

10LCD Panel Specification This specification applies to the 20.1 inch-wide Color TFT-LCD Module M201EW02. The display supports the WSXGA+ (1680(H)

11 Electrical Characteristics TFT LCD Module－Power Specification Backlight Unit http://www.wjel.net

12Optical Specifications http://www.wjel.net

13 Support Timing Horizontal Vertical Mode Resolution Total Nominal Frequency+/- 0.5kHzSync PolarityNominal Freq. +/- 1 Hz Sync Polarity Nomina

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

15 Main Board Diagram Scalar IC NT68625HMFG-128 JS (Include MCU ,ADC, OSD) (U401) D-Sub Connector (CN4

16Software Flow Chart N Y 12NY5Y N 10Y N12Y N 7YN64389141113YN15YN16 1719Y N 18 http://www.wje

17 Remark: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 U402 AZ431AN-A-E1 CN701 WAFER 6PIN U401 NT68625HMFG-128 JS CN702 WAFER 9P RIGHT ANELE

19 Installation To install the monitor on your host system, please follow the steps below: Steps 1 Connect the video cable A：Make sure both the moni

2Service Guide Version and Revision Version Release Date Revision History TPV model A00 Mar.-20-2008 Initial Release TA7ANCD8W7AYNN

20Attaching/Removing the Base Attaching: Align the release button on the bottom of the monitor with the corresponding slots on the bottom of the bas

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

22eColor Management (OSD) http://www.wjel.net

23 How to Adjust a Setting http://www.wjel.net

24Adjusting the picture http://www.wjel.net

25 http://www.wjel.net

26OSD Message a. Outline b. The Description For OSD Message Item Description Auto Config Please Wait When Analog signal input, if User Press Hot-

27 Logo When the monitor is power on, the LOGO will be showed in the center, and disappear slowly. How To Optimize The DOS-Mode Plug And Play Plug

28Machine Disassembly This chapter contains step-by-step procedures on how to disassemble t

29 3. Remove the back cover and bezel. (Fig 3) Fig 3 4. Remove the lamp connectors and the screw. (Fig 4-5) Fig 4 Fig 5 http://ww

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

305. Remove the screws to remove the panel. Put attention to the LVDS cable.(Fig 6-7) Fig 6 Fig 7 6. Remove the screws to remove the main

31 Troubleshooting This chapter provides troubleshooting information for the V203W:

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

33 3. Panel Power Circuit White screen Measure Q705 base is high level? X401 oscillate waveform is normal Check CN101 is solder and

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

35 5. Power Board No power Check to CN902 Pin10,11 =14V and Pin6,7 = 5 V OK Check Interface board Check AC line volt 120V or 220VChange F901, Che

36W/LED No Backlight Check the 14V voltage input Check the adapter Check ON/OFF signal Check Interface board Check

37 Connector Information The following figure shows the connector locations on the monitor:

38FRU (Field Replaceable Unit) List This chapter gives you the FRU (Field Replaceable Unit) listing in gl

39 Part List Above picture show the description of the following component. Item Picture Description 1 Base 2 Main Frame 4 Panel http://ww

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

40 5 Power Board 6 Main Board http://www.wjel.net

41 Schematic Diagram Main Board 2K2 1/16W 5%R438HSG1VGA_VDD1

42T2M4LCD-VDDT5MQ705PMBS3904T1P4T7P4TCLK2M4PANEL_ON4T4MT1MTCLK1P4T7M4T0P4LCD-VDDT6M4T0PTCLK2MR71310K 1/16W 5%T4P4T5PT4M4T5P4T6MT3MTCLK1MT0M4T2MCN101

43 VGA_SDA 2HSONCD401 BAV70312Detect 5V-->4V ResetLED_G5R413 NCC426T4M 3R4461K 1/16W 5%VSI 2T3M 3REFCLKIC426NC72+1.8VR4440R05 1/16WC4080.1uF 16VT

44+3.3VCN702CONN123456789C7090.1uF 16V+3.3VADC_VAAKEY0 4U702 AP1117E33LA1234VSSVOUTVIN4+C706NC+5VC7100.1uF 16V+5VLED_G 4R70510K 1/16W 5%Q702PMBS3906

45 Power board http://www.wjel.net

46 http://www.wjel.net

47 Key board LED_RED#C006NCECOLORECOLORVOL+R001 2K OHM 1/16WECOLORC008NC(GND)LBADC1LEDC005NCCN001CONN123456C007NCAUTOLED_RED#POWER_KeyC002NCLED001LE

5 Precautions 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

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

7 Monitor Features Introduction Scope This specification defines the requirements for th

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

9 LCD Monitor General Specification Driving system TFT Color LCD Active Display Area 433.41(H) x 270.90(V) Pixel pitch 0.258(H) x 0.258(W) Contr