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Acer V203W
Service Guide
1
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Service Guide Version and Revision Version Release Date Revision History TPV model A00 Mar.-20-2008 Initial Release TA7ANCD8W7AYNN 2
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Copyright Copyright © 2003 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. Acer Incorporated makes
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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). These LOCALIZED FE
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Precautions Do not use the monitor near water, e.g. near a bathtub, washbowl, kitchen sink, laundry tub, swimming pool or in a wet basement. Do not place the monitor on an unstable trolley, stand, or table. If the monitor falls, it can injure a person and cause serious damage to the appliance. Use only a trolley or stand recommended by the manufacturer or sold with the monitor. If you mount the monitor on a wall or shelf, uses a mounting kit approved by the manufacturer and follow th
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Table Of Contents Chapter 1 Monitor Features ………………………………………… 7 Introduction ……………………………………… 7 Electrical Requirements ……………………………………… 8 LCD Monitor General Specification ……………………………………… 9 LCD Panel Specification ……………………………………… 10 Support Timing ……………………………………… 13 Monitor Block Diagram ……………………………………… 14 Main Board Diagram ……………………………………… 15 Software Flow chart ……………………………………… 16 Main Board Layout ……………………………………… 18 Installation ……………………………………… 19 Attaching/Removing the bas
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Chapter 1 Monitor Features Introduction Scope This specification defines the requirements for the 20” MICROPROCESSOR based Multi-mode supported high resolution color LCD monitor. This monitor can be directly connected to general 15-pin D-sub VGA connector, also supports VESA DPMS power management and plug & play function. Description The LCD monitor is designed with the latest LCD technology to provide a performance oriente
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Electrical Requirements Standard Test Conditions All tests shall be performed under the following conditions, unless otherwise specified. Ambient light Dark room (< 1 cd/m2) Viewing distance 40 cm for LCD performance, 20 cm for LCD failures Warm up time ＞30 minutes Analog Input signal 700 mVss Control temperature 6500 °K (e-Color set to “User” mode) Brightness control The value under user mode Set to The value under user mode, which allows that the brightest User contrast control
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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) LCD Panel Contrast Ratio 1000 : 1 Response time 5ms Luminance of White 300(Typ.) cd/ ㎡ Separate Sync. H/V TTL Input H-Frequency 30kHz – 83kHz V-Frequency 56-75Hz Viewing angle CR=10: H:170 / V:170 ( typ) ；CR=5: H:176 / V:176 ( typ) Display Colors 16.7M Display mode 1680 x 1050 @60Hz ON Mode < 49W EPA ENERGY STAR® OFF Mode < 1W Set to The v
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LCD Panel Specification This specification applies to the 20.1 inch-wide Color TFT-LCD Module M201EW02. The display supports the WSXGA+ (1680(H) x 1050(V)) screen format and 16.7M colors (RGB 6-bits+Hi-RFC data). All input signals are 2 Channel LVDS interface compatible. This module does not contain an inverter card for backlight. General Specifications Functional Block Diagram 10
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Electrical Characteristics TFT LCD Module －Power Specification Backlight Unit 11
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Optical Specifications 12
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Support Timing Horizontal Vertical Nominal Sync Nominal Sync Nominal Frequency Polarity Freq. Polarity Pixel Mode Resolution Total +/- 0.5kHz +/- 1 Hz Clock (MHz) 640x480@60Hz 800 x 525 31.469 N 59.940 N 25.175 VGA 640x480@72Hz 832 x 520 37.861 N 72.809 N 31.500 640x480@75Hz 840 x 500 37.500 N 75.00 N 31.500 800x600@56Hz 1024 x 625 35.156 N/P 56.250 N/P 36.000 800x600@60Hz 1056 x 628 37.879 P 60.317 P 40.000 SVGA 800x600@72Hz 1040 x 666 48.077 P 72.188 P 50.000 800x600@75Hz
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Monitor Block Diagram The LCD MONITOR will contain a main board, a power board, and key board which house the flat panel control logic, brightness control logic and DDC. The power board will provide AC to DC Inverter voltage to drive the backlight of panel and the main board chips each voltage. Flat Panel and CCFL Drive. CCFL backlight Inverter Board Main Board (include adapter) Input : Key board D-SUB Signal AC-IN 90V-264V
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Main Board Diagram Crystal LCD Interface (X401) (CN101) 12MHz Scalar IC NT68625HMFG-128 JS (Include MCU ,ADC, OSD) (U401) H sync V sync RGB Key Board D-Sub Control Connector (CN701) (CN403) 15
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Software Flow Chart 1 Y 2 3 N N 4 N 5 Y 6 N 7 8 Y Y 9 N 10 11 Y N N 12 13 Y Y N 14 15 16 Y 17 N 18 19 Y 16
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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) Is the power key pressed? 6) Clear all global flags. 7) Are the AUTO and SELECT keys pressed? 8) Enter factory mode. 9) Save the power key status into EEPROM. Turn on the LED and set it to green color. Scalar initializes. 10) In standby mode? 11) Update the lifetime of back light. 12) Check the analog port, are there any signals coming?
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Main Board Layout Symbol Description Symbol Description U402 AZ431AN-A-E1 CN701 WAFER 6PIN U401 NT68625HMFG-128 JS CN702 WAFER 9P RIGHT ANELE PITCH U702 AP1117E33LA CN403 D-SUB 15PIN CN101 CONNECTOR X401 NXS12.000AC30F-BT-2 18
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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 monitor and computer are switched off. B ：Connect the VGA video cable to the computer. 2 Connect the power cord Connect the power cord to the monitor, then to a properly grounded AC outlet. 3 Turn on the monitor and computer Turn on the monitor first, then the computer. This sequence is very important. 4 If the monitor does not function properl
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Attaching/Removing the Base Attaching: Align the release button on the bottom of the monitor with the corresponding slots on the bottom of the base. Removing: Press the release button as indicated, then pull in the direction of the arrow to remove the base. 20
