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20 inch TFT WSXGA LCD Colour Monitor Chassis: UH7
Service 200WB7EB/27
200WB7ES/00
Service
200WB7ES/69
200WB7ES/75
Service
200WB7ES/93
200WB7ES/96
200XW7EB/00
Horizontal frequencies
30 - 98 kHz
TABLE OF CONTENTS
Description Page Description Page
Important Safety Notice---- ------------------------------ 2 Wiring Diagram------------------------------------------29
Technical Data----------------------------------------------3 Block Diagram--------------------------------------------30
Instalation/On Screen Display------------------------4~7 Scaler Diagram&C.B.A. ---------------------------31~38
Lock/unlock,Aging,Factory mode-----------------------8 Control Diagram&C.B.A. --------------------------39~40
Philips Pixel Defect Policy -------------------------------- 9 USB Diagram&C.B.A.------------------------------41~42
Mechanical Instructions ----------------------------10~11 Power Diagram & C.B.A. --------------------------43~46
Color adjustment -----------------------------------------12 Exploded View -------------------------------------------47
Safety Test Requirments--------------------------------13 General product specification--------------------48~59
Troubleshooting ------------------------------------------14 Spare& Recommended parts list-----------------60~62
Electrical instruction --------------------------------15~16 Repair tips--------------------------------------------63~64
DDC Instructions&Serial Number ----------------17~23 Repair Flow chart-----------------------------------65~67
DDC DATA --------------------------------------------24~26 Different parts list----------------------------------------68
ISP Instructions --------------------------------------27~28 Revision List----------------------------------------------70
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.
CAUTION: USE A SEPARATE ISOLATION TRANSFORMER FOR THIS UNIT WHEN SERVICING.
REFER TO BACK COVER FOR IMPORTANT SAFETY GUIDELINES
Published by BCU Monitors Printed in Suzhou Copyright reserved Subject to modification K Mar. 16 2006 GB 3138 106 10502
2 200WB7 LCD Important Safety Notice
Proper service and repair isimportant to the safe, reliable
FOR PRODUCTS CONTAINING LASER :
operation of all HPConsumer Electronics Company**
Equipment. The service procedures recommended by HP and DANGER- Invisible laser radiation when open.
described in this service manual are effective methods of AVOID DIRECT EXPOSURE TO BEAM.
performing service operations. Some ofthese service CAUTION- Use of controls or adjustments or
operations require the use of tools specially designed for the performance of procedures other than
purpose. The special tools should be used when and as those specified herein may result in
recommended. hazardous radiation exposure.
It is important to note that this manual contains various CAUTION- The use of optical instruments with this
CAUTIONS and NOTICES which should be carefully read in product will increase eye hazard.
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 TO ENSURE THE CONTINUED RELIABILITY OF THIS
EXHAUSTIVE. HP could not possibly know, evaluate and PRODUCT, USE ONLY ORIGINAL MANUFACTURER'S
advise the service trade of all conceivable ways in which REPLACEMENT PARTS, WHICH ARE LISTED WITH THEIR PART
service might be done or of the possible hazardous NUMBERS IN THE PARTS LIST SECTION OF THIS
consequences of each way. Consequently, HP has not SERVICE MANUAL.
undertaken any such broad evaluation. Accordingly, a
servicer who uses a service procedure or tool which is not
recommended by HP 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, HP Consumer Take care during handling the LCD module with backlight
Electronics Company will bereferred to as HP. unit
- Must mount the moduleusing mounting holes arranged infour
WARNING
corners.
- Do not press onthe panel, edge of theframe strongly or electric
Critical components having special safety characteristics are
shock as this will result in damage to the screen.
identified with a bythe Ref. No. inthe parts list and
- Do not scratch orpress on the panel withany sharp objects, such
enclosed within a broken line*
as pencil or pen asthis may result in damage to the panel.
(where several critical components are grouped in one area)
- Protect the module fromthe ESD as it maydamage the electronic
along with the safety symbol on the schematics or
circuit (C-MOS).
exploded views.
- Make certain that treatment person s body are grounded through
Use of substitute replacement parts which do not have the
wrist band.
same specified safety characteristics may create shock, fire,
- Do not leave themodule in high temperature andin areas of high
or other hazards.
humidity for a long time.
Under no circumstances should the original design be
- Avoid contact with water as it may ashort circuit within the module.
modified or altered without written permission from Philips.
- If the surface ofpanel become dirty, please wipe it off with a soft
Philips assumes no liability, express or implied, arising out of
material. (Cleaning with a dirty or rough cloth may damage the
any unauthorized modification of design.
panel.)
Servicer assumes all liability.
* Broken Line
Technical Data 200WB7 LCD 3
LCD panel Input DVI-D connector pin
Type NR. : QD20AL01 (QDI)
Outside dimensions : 459.4(H)*296.4(V)*23.7(D) (Typ) mm
Pixel Pitch ( mm ) : 0.258 mm x 0258mm
Color pixel arrangement : RGB vertical stripes
Display surface : low reflection, antiglare with hard coating
Color depth : 16.2M colors (6 bits)
Pin No. Description
Backlight : Six CCFL 's
Active area(WxH) : 433.44x270.9mm (20.1 ''W diagonal) 1 T.M.D.S. data2-
View angle : Horizontal 140& Vertical 125 degree ( 2 T.M.D.S. data2+
CR>=10) 3 T.M.D.S. data2 shield
Contrast ratio : 600:1 (Typ) ,400 :1 (min)
4 No Connect
White luminance : Panel original color >240nits (min), 300
nits (Typ.) 5 No Connect
Main voltage : AC 90 - 135 Vrms and 170 - 264 Vrms, 6 DDC clock
50/60