ViewSonic VX2000 - 20.1" LCD Monitor User manual

Service Manual
ViewSonic VX2000-1
Model No.VLCDS23723-1W
20.1” Color TFT LCD Display
(VX2000-1_SM_558 -Rev.1a-Oct 2002)
ViewSonic381 Brea Canyon Road, Walnut, California 91789 USA - [phone]

Copyright
Copyright ¤2002 by ViewSonic Corporation. 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 ViewSonic Corporation.
Disclaimer
ViewSonic makes no representations or warranties, either expressed or implied, with respect to the
contents hereof and specifically disclaims any warranty of merchantability or fitness for any particular
purpose. Further, ViewSonic reserves the right to revise this publication and to make changes from time
to time in the contents hereof without obligation of ViewSonic to notify any person of such revision or
changes.
Trademarks
ViewSonic is a registered trademark of ViewSonic Corporation.
All other trademarks used within this document are the property of their respective owners.
Revision History
Revision Date Description Of Changes Approval
ViewSonic Corporation i
1a10/29/02
Confidential – Do Not Copy VX2000-1
Initial Reversion DCN-2323 Tom.Sears

TABLE OF CONTENT
PRECAUTIOS AND NOTICES
Chapter 1 Introduction
1-1 The Appropriate Operation
1-2 Product Highlight
1-3 Technical Specification
Chapter 2 Mechanical Construction
2-1 Package Overview
2-2 Exploded Overview
Chapter 3 Procedure of Disassembly
3-1 Disassembly of Stand Unit and Main Body
3-2 Disassembly of Control Board, Cosmetic Cap and Front Cover
3-3 Disassembly of LCD Panels and Main Board
3-4 Disassembly of Support Bracket and Speakers
Chapter 4 Function of Boards
4-1 Main Board
4-2 Control Board
Chapter 5 Troubleshooting Procedure
5-1 Equipment Needed
5-2 Main Procedure
Chapter 6 Function Test and Alignment Procedure
6-1 Product and Test Equipment
6-2 Hot Key (Service Function)
6-3 Test Condition
6-4 Test Display Modes & Pattern
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6-5 Function Test and Alignment Procedure
6-6 Cleaning
6-7 Inspection Standards
Chapter 7 Firmware Upgrade Procedure
7-1 Equipment Needed
7-2 Setup Procedure
7-3 Firmware Upgrade Procedure
Chapter 8 DDC Key in Procedure
8-1 Equipment Needed
8-2 Setup Procedure
8-3 DDC Key Procedure

Chapter 9 Panel Specification
9-1 LCD Panel (Model# FLC51UXC8V)
Chapter 10 Schematic Diagram & PCB Layout
10-1 Schematic Diagram
10-2 PCB Layout
Chapter 11 Appendix
11-1 The Serial Number System Definition
11-2 Reader’s Response
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PRECAUTIONS AND NOTICES
Prior to using this manual, please ensure that you have carefully followed all the procedures
outlined in the user manual for this product.
zRead all of these instructions.
zSave these instructions for later use.
zFollow all warnings and instructions marked on the product.
zDo not use this product near water.
zThis display should be installed on a solid horizontal base.
zWhen cleaning, use only a neutral detergent cleaner with a soft damp cloth. Do not spray
with liquid or aerosol cleaners.
zDo not expose this display to direct sunlight or heat. Hot air may cause damage to the cabinet
and other parts.
zAdequate ventilation must be maintained to ensure reliable and continued operation and to
protect the display from overheating. Do not block ventilation slots and openings with objects or
install the display in a place where ventilation may be hindered.
zDo not install this display near a motor or transformer where strong magnetism is generated.
Images on the display will become distorted and the color irregular.
zDo not allow metal pieces or objects of any kind fall into the display from ventilation holes.
Slots and openings in the cabinet and the back or bottom are provided for ventilation, to ensure reliable
operation of the product and to protect it from overheating, those openings mustnot be blocked or
covered. The openings should never be blocked by placing the product on a bed, sofa, rug, or other
similar surface. This product should never be placed near or over a radiator or heat register. This
product should not be placed in a built-in installation unless proper ventilation is provided.
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VX2000 Series Service Manual
VX2000 series
Chapter 1 Introduction
1-1 The Appropriate Operation
This manual provides integral technical information you need to maintain the
LCD Monitor. And this manual is applied to the model of 1600*1 00 pixels color TFT
LCD Monitor with a 0.1 flat panel screen. There are ten topics in this manual, and
you can immediately identify problems through this manual.
This manual is for the technicians and people who have the electronic background.
Send the product back to the distributor for repairing and do not attempt to do anything
which is complex or not mentioned in the troubleshooting.
Turn off the Product before cleaning.
Use only a dry soft cloth when cleaning the LCD panel surface.
Use a soft cloth moistured with mild detergent to clean the display housing.
Use only high quality and safety approved AC/DC power Adapter.
Disconnect the Power Plug from AC outlet if the Product is not used for a long
period of time.
Do not touch the LCD panel surface with sharp or hard objects.
Do not use abrasive cleaners, waxes or solvents for your cleaning.
Do not operate the product under the following conditions:
* Extremely hot, cold or humid environment.
* Areas susceptible to excessive dusts and dirt
* Near any applicance generating a strong magnetic field.
* Place in direct sunlight.
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VX2000 Series Service Manual
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1-2 Product Highlight
Active matrix TFT LCD technology
VESA 1600*1 00@60Hz
280 (max), 250 (typ), 200 (min)
Vertical Refresh Rate
Auto Image Adjustment
Multifunction OSD user controls
VESA DPMS Power saving
Resolution Compatibility: 640*350, 640*480, 7 0*400, 800*600,
83 *6 4,10 4*768, 1 80*7 0, 1 80*10 4,
1600*1 00
1-3 Technical Specification
I.) Fujitsu Panel
Active Matrix Type Liquid Crystal Panel
0.1 diagonal screen size
408.0(H)*306.0(V) Active Size
1600*1 00 addressable pixels
0. 55mm*0. 55mm pixel pitch
280 (max), 250 (typ), 200 (min)
Lamp number : 6 CCFLs
Life: 50,000 hrs (min)
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Analog and digital signal inputs
cd/m cd/m cd/m
cd/m cd/m cd/m
650:1(max),500:1(typ),350:1(min)
30-82kHz Horizontal Frequency
45-85Hz
II.) Power Supply
Input Voltage Range: 90 to 64 VAC
Input Frequency Range: 47.5 to 63 Hz
Output Voltage@0 ~ 6.66A Load: 1 V DC +/- 5%
Over Current Protection 8.66A typ at 1 .6 VDC
Power Consumption 80 Watts (typ.)
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III.) Audio
Line Input Connection: 3.5mm Stereo Jack
Line Input Signal: 1.3Vrms
Maximum Power Output (Electric): 3W @ <5% distortion
IV.) Look up Table Timing
(Analog)
640*350@70Hz, 31.5kHz 640*480@60Hz, 31.5kHz
640*480@67Hz, 35.0kHz 640*480@75Hz, 37.5kHz
640*480@7 Hz, 37.9kHz 640*480@85Hz, 43. 7kHz
7 0*400@70Hz, 31.5kHz 800*600@56Hz, 35.1kHz
800*600@60Hz, 37.9kHz 800*600@75Hz, 46.9kHz
800*600@7 Hz, 48.1kHz 800*600@85Hz, 53.7kHz
83 *6 4@75Hz, 49.7kHz 10 4*768@60Hz, 48.4kHz
10 4*768@70Hz, 56.5kHz 10 4*768@7 Hz, 58.1kHz
10 4*768@75Hz, 60.0kHz 10 4*768@85Hz, 68.67kHz
1 80* @60Hz, kHz
1 80*10 4@75Hz, 79.97kHz
1600*1 00@60Hz,
(Digital)
640*350@70Hz, 31.5kHz 640*400@60Hz, 31.5kHz
640*480@60Hz, 31.5kHz 640*480@75Hz, 37.5kHz
640*480@7 Hz, 37.9kHz 640*480@85Hz, 43. 7kHz
7 0*400@70Hz, 31.5kHz 800*600@56Hz, 35.1kHz
800*600@60Hz, 37.9kHz 800*600@75Hz, 46.9kHz
800*600@7 Hz, 48.1kHz 800*600@85Hz, 53.7kHz
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1 80*10 4@60Hz, 63.4kHz
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10 4*768@60Hz, 48.4kHz 10 4*768@70Hz, 56.5kHz
10 4*768@7 Hz, 58.1kHz 10 4*768@75Hz, 60.0kHz
10 4*768@85Hz, 68.67kHz
1 80*10 4@60Hz, 63.4kHz
1600*1 00@60Hz,
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1 80* @60Hz, kHz
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VX2000 Series Service Manual
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V.) Mechanical & Environmental Condition
Width*Height*Depth: 483.0mm*50 .1mm*69.5mm(exclude Stand)
483.0mm*50 .1mm* 10.35mm(full set)
Monitor Weight 8.4kgs/18.5lbs
Operating Temperature: 00C to +400C
Storage Temperature: - 00C to +600C
Operating Relative Humidity: 0%~85% RH Non-Condensing
Storage Relative Humidity: 5%~85% RH Non-Condensing
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VX2000 Series Service Manual
VX2000 series
Chapter 2 Mechanical Construction
2-1 Package Overview
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