Lanix LX700B User manual

17"& 19” LCD Color Monitor LANIX LX700B&LX900B
1
Service
Service
Service
Horizontal Frequency
31-75 KHz
TABLE OF CONTENTS
Description Page Description Page
SAFETY NOTICE
ANY PERSON ATTEMPTING TO SERVICE THIS CHASSIS MUST FAMILIARIZE HIMSELF WITH THE
CHASSIS AND BE AWARE OF THE NECESSARY SAFETY PRECAUTIONS TO BE USED WHEN SERVICING
ELECTRONIC EQUIPMENT CONTAINING HIGH VOLTAGES.
Table Of Contents.......……..............................…........1
Revision List.…........................................……......2
Important Safety Notice.……..................……......3
1.Monitor Specification..............................………........4
2. LCD Monitor Description…………………………….......5
3. Operation Instruction…................................................6
3.1. General Instructions...........................…...........6
3.2. Control Button………………………………...............6
3.3. OSD Menu………………………...…..........................8
4. Input/Output Specification............……………............11
4.1. Input Signal Connector............………….................11
4.2. Power Supply Requirements...............................12
4.3. Factory Preset Display Modes…….........................13
4.4. Panel Specification…………………………………...14
5. Block Diagram……………………………....................20
5.1. Software Flow Chart…………………………….......20
5.2. Electrical Block Diagram……………….........22
6. Schematic……………......................................25
6.1. Main Board………..........................................25
6.2. Power Board...……....................................29
6.3. Key Board...……......................................34
7. PCB Layout..…………......................................35
7.1. Main Board………........................................35
7.2. Power Board….......................................38
7.3. Key Board……………....................................43
8. Maintainability……….......................................44
8.1. Equipments and Tools Requirement..............44
8.2. Trouble Shooting………..............................45
9. White-Balance, Luminance adjustment............53
10. Monitor Exploded View…………………..........55
11. BOM List………………………………............57
CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING
R FOR TH
UNIT WHEN S

17"& 19” LCD Color Monitor LANIX LX700B&LX900B
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Revision List
Version
Release Date
Revision
History
Customer
Model
TPV Model Name
A00
Aug 5, 2008
Initial release
LX700B
T7RHM5NPWW2LNN
LX900B
T98SM5NPX22LAN

17"& 19” LCD Color Monitor LANIX LX700B&LX900B
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Important Safety Notice
Proper service and repair is important to the safe, reliable operation of all LANIX Company Equipment. The service
procedures recommended by LANIX and described in this service manual are effective methods of performing
service operations. Some of these service operations require the use of tools specially designed for the purpose.
The special tools should be used when and as recommended.
It is important to note that this manual contains various CAUTIONS and NOTICES which should be carefully read in
order to minimize the risk of personal injury to service personnel. The possibility exists that improper service
methods may damage the equipment. It is also important to understand that these CAUTIONS and NOTICES ARE
NOT EXHAUSTIVE. LANIX could not possibly know, evaluate and advise the service trade of all conceivable ways
in which service might be done or of the possible hazardous consequences of each way. Consequently, LANIX has
not undertaken any such broad evaluation. Accordingly, a servicer who uses a service procedure or tool which is not
recommended by LANIX must first satisfy himself thoroughly that neither his safety nor the safe operation of the
equipment will be jeopardized by the service method selected.
Hereafter throughout this manual, LANIX Company will be referred to as LANIX.
WARNING
Use of controls, adjustments, or procedures other than those specified in this documentation may result in exposure
to shock, electrical hazards, and/or mechanical hazards.
Under no circumstances should the original design be modified or altered without written permission from LANIX.
LANIX assumes no liability, express or implied, arising out of any unauthorized modification of design.Servicer
assumes all liability.
FOR PRODUCTS CONTAINING LASER:
DANGER-Invisible laser radiations when open AVOID DIRECT EXPOSURE TO BEAM.
CAUTION-Use of controls or adjustments or performance of procedures other than those specified herein may
result in hazardous radiation exposure.
CAUTION -The use of optical instruments with this product will increase eye hazard.
TO ENSURE THE CONTINUED RELIABILITY OF THIS PRODUCT, USE ONLY ORIGINAL MANUFACTURER'S
REPLACEMENT PARTS, WHICH ARE LISTED WITH THEIR PART NUMBERS IN THE PARTS LIST SECTION OF
THIS SERVICE MANUAL.
Take care during handling the LCD module with backlight unit
-Must mount the module using mounting holes arranged in four corners.
-Do not press on the panel, edge of the frame strongly or electric shock as this will result in damage to the screen.
-Do not scratch or press on the panel with any sharp objects, such as pencil or pen as this may result in damage to
the panel.
-Protect the module from the ESD as it may damage the electronic circuit (C-MOS).
-Make certain that treatment person’s body is grounded through wristband.
-Do not leave the module in high temperature and in areas of high humidity for a long time.
-Avoid contact with water as it may a short circuit within the module.
-If the surface of panel becomes dirty, please wipe it off with a soft material. (Cleaning with a dirty or rough cloth may
damage the panel.)

17"& 19” LCD Color Monitor LANIX LX700B&LX900B
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1. Monitor Specifications
1) Lanix Monitor LX700B Widescreen
Liquid Crystal Monitor of 17"
Visible Area of Screen 17" (433mm)
Model LX700B
0.255mm Dot Pitch
Max Resolution: 1440 x 900 @75Hz
Contrast Ratio (typical):600:1
Plug & Play
Special Features:
W x H x S (w/base) 401mm x 340.6mm x 190mm
2) Lanix Monitor LX900B Widescreen
Liquid Crystal Monitor of 19"
Visible Area of Screen 19" (481.4mm)
Model LX900B
0.2835mm Dot Pitch
Max Resolution: 1440 x 900 @60Hz
Contrast Ratio (typical): 1000:1
Plug & Play
Special Features:
W x H x S (w/base) 439mm x 365mm x 190mm

17"& 19” LCD Color Monitor LANIX LX700B&LX900B
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2. LCD Monitor Description
The LCD monitor will contain a main board, a power board and a 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.
LX700B
LX900B
Monitor Block Diagram
HOST Computer
AC-IN
100V-240V
Power board
(Include: adapter, inverter)
Flat Panel and
CCFL
backlight
Main Board
RS232 Connector For white
balance adjustment in
factory mode
CCFL Drive.
Video signal,
DDC
Key
board
Monitor Block Diagram
HOST Computer
AC-IN
100V-240V
Power board
(Include: adapter, inverter, audio)
Flat Panel and
CCFL backlight
Main Board
RS232 Connector For
white balance adjustment
in factory mode
CCFL Drive.
Video signal,
DDC
Key board