t ne el. w.
Service Guide Version and Revision Version Revision History TPV model Initial Release TA7ANCD8W7AYNN Mar.-20-2008 ht tp :// ww w. wj el.
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.
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).
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 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 the kit instructions.
Table Of Contents 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 base ……………………………………… Operating Instructions ……
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 oriented product with no radiation. This will alleviate the growing health concerns.
Electrical Requirements Standard Test Conditions All tests shall be performed under the following conditions, unless otherwise specified.
LCD Monitor General Specification Active Display Area 433.41(H) x 270.90(V) Pixel pitch 0.258(H) x 0.258(W) Contrast Ratio 1000 : 1 Response time 5ms Luminance of White 300(Typ.) cd/㎡ Separate Sync. H/V TTL H-Frequency 30kHz – 83kHz V-Frequency 56-75Hz t Input TFT Color LCD ne LCD Panel Driving system CR=10: H:170 / V:170 ( typ) ；CR=5: H:176 / V:176 ( typ) Display Colors 16.7M Display mode 1680 x 1050 @60Hz OFF Mode w. wj ON Mode EPA ENERGY STAR® el.
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. w. wj el.
Electrical Characteristics TFT LCD Module－Power Specification ht tp :// ww w. wj el.
ht tp :// ww w. wj el.
Support Timing Horizontal Mode Resolution Total Vertical Nominal Sync Nominal Sync Nominal Frequency Polarity Freq. Polarity Pixel +/- 0.5kHz +/- 1 Hz Clock (MHz) 800 x 525 31.469 N 59.940 N 25.175 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 800x600@72Hz 1040 x 666 48.077 P 72.188 P 50.
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 Input : el. Key board ne t (include adapter) w.
Main Board Diagram Crystal (X401) 12MHz LCD Interface (CN101) Scalar IC NT68625HMFG-128 JS (Include MCU ,ADC, OSD) t (U401) ne H sync V sync RGB D-Sub el. Key Board Control Connector (CN701) ht tp :// ww w.
Software Flow Chart 1 Y 2 3 N N 4 N ne t 5 Y el. 6 w.
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? t 6) Clear all global flags. ne 7) Are the AUTO and SELECT keys pressed? el. 8) Enter factory mode. 9) Save the power key status into EEPROM. Scalar initializes. 10) In standby mode? 11) Update the lifetime of back light. w. wj Turn on the LED and set it to green color.
Description Symbol tp Symbol :// ww w. wj el. ne t Main Board Layout Description AZ431AN-A-E1 CN701 WAFER 6PIN U401 NT68625HMFG-128 JS CN702 WAFER 9P RIGHT ANELE PITCH U702 AP1117E33LA CN403 D-SUB 15PIN CONNECTOR X401 CN101 ht U402 18 NXS12.
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. ht tp :// ww w. wj el.
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: ht tp :// ww w. wj el. ne t Press the release button as indicated, then pull in the direction of the arrow to remove the base.
Chapter 2 Operating Instructions Press the power button to turn the monitor on or off. The other control buttons are located at front panel of the monitor. By changing these settings, the picture can be adjusted to your personal preferences. • The power cord should be connected. • Connect the video cable from the monitor to the video card. • Press the power button to turn on the monitor position. The power indicator will light up. Front panel controls w. wj el.
ht tp :// ww w. wj el.
ht tp :// ww w. wj el.
ht tp :// ww w. wj el.
ww :// tp ht ne el. w.
OSD Message a. Outline b. The Description For OSD Message Description Auto Config When Analog signal input, if User Press Hot-Key “Auto”, will show this message, and the Please Wait monitor do the auto config function. ne t Item When the Hsync Frequency, Vsync Frequency or Resolution is out of the monitor Supported support range, will show this message. This message will be flying. Cable Not Analog-Only Model: When the video cable is not connected, will show this message.
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 & Play DDC2B Feature This monitor is equipped with VESA DDC2B capabilities according to the VESA DDC STANDARD. It allows the monitor to inform the host system of its identity and, depending on the level of DDC used, communicate additional ne t information about its display capabilities. The DDC2B is a bi-directional data channel based on the I²C protocol.
Chapter 3 Machine Disassembly This chapter contains step-by-step procedures on how to disassemble the monitor for maintenance. Disassembly Procedure w. wj el. ne t 1. Remove the cover hinge as the following indicator. (Fig 1) Fig 1 ht tp :// ww 2. Remove the screws as following indicate to release base stand.
Remove the back cover and bezel. (Fig 3) w. wj el. ne t 3. tp :// Remove the lamp connectors and the screw. (Fig 4-5) ht 4.
5. Remove the screws to remove the panel. Put attention to the LVDS cable.(Fig 6-7) ww w. wj el. ne t Fig 6 Fig 7 tp :// Remove the screws to remove the main board and power board.( Fig 8) ht 6.
Chapter 4 Troubleshooting This chapter provides troubleshooting information for the V203W: 1. No Power No power Press power key and look if the picture is normal t NG ne Please reinsert and make sure the AC of 100-240 is normal Reinsert or check the el. NG OK w. wj power section Measure U702 Pin2=3.
2. No Picture (LED is orange) No picture NG The button if under X401 oscillate control NG Replace X401 waveform is normal OK OK Check reset circuit of NG U401 is normal Check Correspondent component OK Replace U401 el. OK NG X401 oscillate w. wj waveform is normal Replace U702 NG Replace X401 CN403 is normal ww OK Check HS/VS from Check Correspondent component :// NG OK ne t Measure U702 Pin2=3.
3. Panel Power Circuit White screen NG Measure Q705 base is high level? X401 oscillate waveform is normal NG OK Replace X401 ne t OK Check CN101 is solder Check reset circuit of and Q704,Q705 is OK? el. NG NG w. wj Check Correspondent component. U401 is normal OK OK ht tp :// ww Replace PANEL Replace U401 33 Check Correspondent component.
4. Key Board OSD is unstable or not working NG Connect Key Board Is Key Pad Board connecting normally? NG el. Y NG ht tp :// ww Check Main Board Replace Key Board w.
5. Power Board No power No power Check to CN902 Pin10,11 =14V and Pin6,7 = 5 V NG Check Interface board t OK ne Check AC line volt 120V or 220V NG el. Change F901, Check BD901, L901, IC901 Check the voltage of C905(+) NG OK w.
W/LED No Backlight Check the 14V voltage input NG OK Check the adapter Check ON/OFF signal NG Check Interface board ne t OK Check IC801 pin12=12V? el. NG Change Q805.Q808 or Q810 w.
Chapter 5 Connector Information ht tp :// ww w. wj el.
Chapter 6 FRU (Field Replaceable Unit) List This chapter gives you the FRU (Field Replaceable Unit) listing in global configurations of V203W.Refer to this chapter whenever ordering for parts to repair or for RMA (Return Merchandise Authorization). NOTE: Please note WHEN ORDERING FRU PARTS, that you should check the most up-to-date information available on your regional web or channel (http://aicsl.acer.com.tw/spl/).
Part List Above picture show the description of the following component. Item Picture Description Base w. wj el.
5 w. wj el.
Chapter 7 Schematic Diagram Main Board move FB403 FB404 FB405 to CN403 +5V ZD402 VGA_5V 12 1 ZD401 G1 UDZSNP5.6B R1 17 11 B1 VGA_VDD D-SUB1 2 1 3 el. 1 BI1 4 C419 0.047uF BI1- 4 C420 1N 50V SOGI 4 C421 0.047uF GI1 4 C422 0.047uF GI1- 4 C417 0.047uF RI1 4 C424 0.
CN101 T0M T0P T1M T1P T2M T2P 4 T0P 4 T0M 4 T1P 4 T1M 4 T2P 4 T2M 4 TCLK1P 4 TCLK1M 4 T3P 4 T3M 4 T4P 4 T4M 4 T5P 4 T5M 4 T6P 4 T6M 4 TCLK2P 4 TCLK2M 4 T7P 4 T7M LVDS OUTPUT ne t TCLK1M TCLK1P T3M T3P T4M T4P 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 el. T5M T5P .
T0M 3 OD T0P 3 NT68670 T1M 3 NC T1P 3 NC 0R T2M 3 C426 NC 0.1u T2P 3 5 R422 100R NC TCLK1M 3 6 R447 0R NC TCLK1P 3 7 R448 NC 0R T3M 3 8 C427 NC 0.1u T3P 3 T4M 3 T4P 3 T5M 3 T5P 3 T6M 3 T6P 3 DVDD PARTS 1 U401 NT68665 C402 2 R444 0R 0.1uF 16V 3 R445 4 CVDD18 +1.8V ADC_VAA FB402 2 52 1 NC NONE OD NO. 53 115 C403 0.1uF 16V 26 119 C404 0.1uF 16V C426 NC C405 0.
+3.3V R702 10K 1/16W 5% U702 PANEL_ID 4 VOLUME 4 MUTE 4 CONN Q701 PMBS3904 R705 10K 1/16W 5% C702 BL_EN 4 R704 NC C701 VOUT 100uF/25V FB701 2 C703 100uF/25V +3.3V LED_G 4 Q702 PMBS3906 tp +3.3V Q703 PMBS3906 LED_A 4 44 1 DVDD 120OHM C705 0.1uF 16V Cancel 5V to 1.8V LDO,because the Scaler can support it. D701 SM340A U701 +1.8V NC Vin Vout ADJ 3 NC 2 C707 2 + 1 .
.w j ww :// w tp ht ne t el.
.w j ww :// w tp ht ne t el.
Key board UDZSNP5.6B 1 add ZD001 and ZD002 for ESD solution LED001 LED LBADC1 LBADC2 POWER_Key LED_BLUE# LED_RED# R001 C004 NC :// w AUTO 2K OHM 1/16W MENU ht CN001 VOL- VOL+ POWER R003 1K 1/16W 5% C007 C006 MENU AUTO 1 3 5 7 9 11 2 4 6 8 10 12 SW001 JB41-03521 tp ECOLOR(GND) 0 V NC VOL+ ECOLOR C008 0 V NC VOL- (GND) ECOLOR AUTO R002 C005 NC ww MENU CONNECTOR el. C002 C003 NC NC 2K OHM 1/16W .w j CONN LBADC2 UDZSNP5.
