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Acer B193R
Service Guide
1
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Service Guide Version and Revision Version Release Date Revision History TPV model T97HNAD8K3ABHN/ A00 Mar.-24-2008 Initial Release T97HNAD8K3ABDN 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 mak
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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 ……………………………………… 12 Monitor Block Diagram ……………………………………… 13 Main Board Diagram ……………………………………… 14 Software Flow chart ……………………………………… 15 Main Board Layout ……………………………………… 17 Installation ……………………………………… 18 Attaching/Removing the bas
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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 and 24 pin DVI connector, also supports VESA DPMS power management and plug & play function. Description The LCD monitor is designed with the latest LCD technology to prov
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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 Brightness control The value under user mode Set to The value under user mode, which allows that the brightest User contrast control two of 32 linear distribute
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LCD Monitor General Specification Driving system TFT Color LCD Active Display Area 376.32 (H) x301.056 (V) Pixel pitch 0.294(H) x 0.294(V) LCD Panel Contrast Ratio 1000 : 1 Response time 5ms Luminance of White 300(Typ.) cd/ ㎡ Separate Sync. H/V TTL Input H-Frequency 30kHz – 80kHz V-Frequency 55-75Hz Viewing angle (H)170 (V) 160(Type) Display Colors 16.7M Display mode 1280 x 1024 @75Hz ON Mode < 36W EPA ENERGY STAR® OFF Mode < 1W Set to The value under user mode, which all
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LCD Panel Specification General Specifications Mechanical Information Electrical Characteristics 10
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Optical Specifications 11
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Support Timing 12
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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 : Input : Key board D-SUB Signal DVI Signal
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Main Board Diagram Crystal LCD Interface (X201) (CN402) 12MHz Key Board U203 Control Scalar IC NT68665MFG-128 CN407 (Include MCU ,ADC, OSD) · H sync V sync RGB D-Sub DVI Connector Connector (CN101) (CN102) 14
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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 15
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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 CN407 WAFER CN102 DVI 24PIN CONNECTOR CN301 WAFER 9P RIGHT ANELE PITCH U203 IC NT68665MFG-128 QFP-128L CN402 CONNECTOR U301 IC AP1117D33LA TO252-3L ATC CN101 D-SUB 15PIN U304 IC AP1117E18LA SOT223-3L ANACHIP U204 IC AF24BC16-SI 16K SOIC-8 17
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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. C: Connect the digital cable (only for dual-input models). (1) Make sure both the monitor and computer are switched off. (2) Connect one end of the 24-pin DVI cable to the back of the monitor and the other end to the computer's port. 2.Connect the power cord
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Attaching/Removing The Base Install: Align the base with the stand and push the base towards the top of the monitor, and then rotate the base clockwise. Tighten the screw clockwise. Remove: Reverse the steps to remove the base. Screen Position Adjustment In order to optimize the best viewing position, you can adjust the height/tilt/swivel/pivot of the monitor. Height Adjustment After pressing the top of the monitor, push the lock button towards right, then you can adjust the height
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Tilt Please see the illustration below for an example of the tilt range. Swivel With the built-in pedestal, you can swivel the monitor for the most comfortable viewing angle. Monitor Pivot Adjust height to the top position before rotation the monitor. Rotate clockwise until the monitor stops at 90°. 20
