Acer V193W Service Guide 1
Service Guide Version and Revision Version A00 Release Date Revision History TPV model Initial Release T97AMRD8W7ABNN Mar.
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 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 the kit instructions.
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 b
Chapter 1 Monitor Features Introduction Scope This specification defines the requirements for the 19” 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 Driving system TFT Color LCD Active Display Area 408.24 (H) x 255.15 (V) Pixel pitch 0.2835(H) x 0.2835(W) Contrast Ratio 800 : 1 Response time 5ms Luminance of White 300(Typ.) cd/㎡ Separate Sync. H/V TTL H-Frequency 30kHz – 80kHz V-Frequency 55-75Hz LCD Panel Input Viewing angle (H)160 (V) 160(Type) Display Colors 16.
LCD Panel Specification TPM190A1(PW01) V0A1 is a 19” wide TFT Liquid Crystal Display module with 2ch-LVDS interface. This module supports 1440 x 900 WXGA+ mode and can display 16.7M colors. The inverter module for Backlight is not built in.
Function Block Diagram Electrical Characteristics 11
Optical Specifications 12
Support Timing Horizontal Nominal Mode Resolution Total Frequency +/- 0.5kHz VGA SVGA XGA VESA SXGA WXGA Vertical Sync Polarity Nominal Freq. +/- 1 Hz Nominal Sync Pixel Polarity Clock (MHz) 640x480@60Hz 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.
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.
Main Board Diagram Crystal LCD Interface (X401) 14.
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 12 N 13 Y Y N 14 15 Y 17 18 N 19 Y 16 16
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.
Main Board Layout Symbol Description Symbol Description U401 IC TSUM1PFR-LF CN401 WAFER 6PIN U404 IC AP1117D33LA TO252-3L ATC CN404 WAFER 9P RIGHT ANELE PITCH U103 IC AZC099-04S SOT23-6L CN403 CONNECTOR U102 IC AZC099-04S SOT23-6L X401 U402 SST25LF020A-33-4C-SAE CN101 18 14.
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.
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.
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.
eColor Management (OSD) 22
How to Adjust a Setting 23
Adjusting the picture 24
OSD Message a. Outline b. The Description For OSD Message Item 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. Input Not 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 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 1. Remove the cover hinge as the following indicator. (Fig 1) Fig 1 2. Remove the screws as following indicate to release base stand.
3. Remove the back cover and bezel. (Fig 3) Fig 3 4. Remove the lamp connectors and the screw.
5. 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 board and power board.
Chapter 4 Troubleshooting This chapter provides troubleshooting information for the V193W: 1. No Power No power Press power key and look if the picture is normal NG Please reinsert and make sure the AC of 100-240 is normal NG OK Reinsert or check the power section Measure U404 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 U401 is normal Measure U404 Pin2=3.
3. Panel Power Circuit White screen Measure Q404 base NG is low level? OK OK Check CN403 is solder NG Replace X401 Check reset circuit of and Q404,Q405 is OK? Check Correspondent component. X401 oscillate waveform is normal U401 is normal NG NG OK OK Replace U401 Replace PANEL 33 Check Correspondent component.
4.
5.
W/LED No Backlight Check the 14V voltage input NG OK Check the adapter Check ON/OFF signal NG OK Check Interface board Check IC801 pin12=12V? NG Change Q805.
Chapter 5 Connector Information The following figure shows the connector locations on the monitor: 37
Chapter 6 FRU (Field Replaceable Unit) List This chapter gives you the FRU (Field Replaceable Unit) listing in global configurations of V193W.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.
5 Power Board 6 Main Board 40
Chapter 7 Schematic Diagram Main Board H_Sy nc V_Sy nc R101 0R05 1/10W 5% R102 100R 1/16W 5% R103 100R 1/16W 5% DSUB_H DSUB_V VGA_B+ VCC3.
AVDD VDDP VDDC 13 12 10 9 11 8 7 16 17 18 19 DSUB_R+ DSUB_RDSUB_G+ DSUB_GDSUB_SOG DSUB_B+ DSUB_BDSUB_H DSUB_V DDC1_SDA DDC1_SCL 30 53 7 VDDC VDDC VDDP 6 RIN0P RIN0M GIN0P GIN0M SOGIN0 BIN0P BIN0M HSY NC0 VSY NC0 DDCA_SDA/RS232_TX DDCA_SCL/rs232_RX AVDD_ADC 3 3 3 3 3 3 3 3 3 3 3 51 VCC3.3 U401 VCTRL LVA3P LVA3M 52 VCTRL 33 34 PA0 PA1 35 36 37 38 39 40 PA4 PA5 PA6 PA7 PA8 PA9 PA[0..1] LVA2P LVA2M LVA1P LVA1M LVA0P LVA0M PA[0..1] 4 R403 390 OHM 1/16W AVDD 15 VCC3.3 C401 0.
PANEL_VCC CN403 5 PA[0..1] PA[0..1] 5 PB[0..9] PB[0..9] PA0 PA1 5 PA[4..9] PB0 PB1 PB2 PB3 PB4 PB5 PB6 PB7 PB8 PB9 PA[4..9] PA4 PA5 PA6 PA7 PA8 PA9 R434 330 OHM 1/4W C420 0.1uF/16V PA0 PA1 PB2 PB3 PA4 PA5 PA6 PA7 3D 1 G CMVCC 2006-11-7 Add pull up 4K7 to MVCC CMVCC R435 R433 C419 10K 1/16W 5% 0.
2008/01/14 BAT99 : If 0.05A,VF=1.0V BAV70 : If 0.05A,VF=1.0V It's need to use Low Dropout Regulator. ESD_VCC 2 LG OTHER DSUB_5V CMVCC Due to LG doen't request PC'99 Function. NC 0Ohm 1/16W BAV99 NC 1 2 R458 VCC3.3 D401 BAV99 NC VCC3.3 3 CN404 CMVCC1 SM340A D402 CMVCC CMVCC BKLT-VBRI BKLT-EN C_PANEL_INDEX Volume Mute R458 DSUB_5V 2 5, 6 CMVCC 1 2 3 4 5 6 7 8 9 D401 CMVCC1 R450 NC NC(R0402) 5 VCC3.3 R437 R439 10K 1/16W 5% 10K 1/16W 5% BKLT-EN PANEL_ID# 5 VCC1.
Power board 45
Key board ZD001 2 UDZSNP5.6B 1 add ZD001 and ZD002 for ESD solution LED001 LED 4 2 3 1 2 1 CN001 ZD002 1 2 3 4 5 6 LBADC1 LBADC2 POWER_Key LED_BLUE# LED_RED# UDZSNP5.
