Philips LCD Monitor 170S5,Chassis SH4 service manual

17" TFT LCD Colour Monitor

SH 4 170S5

Service Service Service 170S5FG/00

Horizontal frequencies 30 - 82KHz

TABLE OF CONTENTS Description Page Important Safety Notice ---------------------------- 2 « Technical Data --------------------------------------- 3 Front control & Connections-----------------------4~5 On-screen Display(OSD)------------------------------6 OSD Aging Mode & Lock/unlock----------------------7 Pixel Defect Policy-------------------------------------8 Warning Message--------------------------------------9 Factory Mode------------------------------------------10 Wiring Message----- ----------------------------------11 Mechanical Instructions-------------------------12~13 Electrical Instructions---------------------------14~15 ISP Instruction ----------------------------------16~17

Description Page DDC Instructions -------------------------------18~22 DDC HEX Data-----------------------------------23~26 Block Diagram---------------------- -----------------27 Scaler Diagram----------------------------------28~31 Scaler board C.B.A.------------------------------32~33 Control Diagram & C.B.A.----------------------------34 Power Diagram & C.B.A.------------------------35~37 Exploded View --------------------------------------- 38 Recommended parts list ----------------------------39 Spare parts list ---------------------------------------40 General product specification------------------41~64 Safety Test Requirements---------------------------65

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 Taiwan

Copyright reserved

Subject to modification M

Mar. 4 2004

GB

3138 106 10374

2

Important Safety Notice

170S5 LCD Go to cover page

Proper service and repair is important to the safe, reliable operation of all Philips Consumer Electronics Company** Equipment. The service procedures recommended by Philips 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. Philips 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, Philips has not undertaken any such broad evaluation. Accordingly, a servicer who uses a service procedure or tool which is not recommended by Philips 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, Philips Consumer Electronics Company will be referred to as Philips.

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 are grounded through wrist band. - 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 become dirty, please wipe it off with a soft material. (Cleaning with a dirty or rough cloth may damage the panel.)

WARNING FOR PRODUCTS CONTAINING LASER : Critical components having special safety characteristics are identified with a by the Ref. No. in the parts list and enclosed within a broken line* (where several critical components are grouped in one area) along with the safety symbol on the schematics or exploded views. Use of substitute replacement parts which do not have the same specified safety characteristics may create shock, fire, or other hazards. Under no circumstances should the original design be modified or altered without written permission from Philips. Philips assumes no liability, express or implied, arising out of any unauthorized modification of design. Servicer assumes all liability. * Broken Line

DANGER- Invisible laser radiation 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.

Technical Data Technical Specifications LCD PANEL Type :TFT LCD Screen size :17" / 43.2 cm diagonal Pixel Pitch :0.264 x 0.264 mm LCD Panel type :1280 x 1024 pixels R.G.B. vertical stripe Anti-glare polarizer, hard coated Effective viewing area:337.9 x 270.3 mm Display Colors :16M colors SCANNING Vertical refresh rate :56 Hz-76 Hz Horizontal Frequency :30k Hz-82 kHz VIDEO Video dot rate :135 MHz Input impedance -Video 75 ohm -Sync 2.2K ohm Input signal levels :0.7 Vpp Sync input signal :Separate sync Composite sync Sync on green Sync polarities : Positive and negative Video interface : D-Sub (analog) Resolution & Preset Modes Maximum 1280 x 1024 at 75 Hz Recommended 1280 x 1024 at 60 Hz Optical characteristics Contrast ratio : 450:1 (typ.) Brightness : 250 cd/m2 (typ.) Peak contrast angle : 6 o'clock White Chromaticity : x: 0.283 y: 0.297 (at 9300K) x: 0.313 y: 0.329 (at 6500K) x: 0.313 y: 0.329 (at sRGB) Viewing Angle (C/R>5): Upper >65 (typ.) Lower >75 (typ.) Left >80 (typ.) Right >80 (typ.) Response time :