Philips-MCM-190-Service-Manual电路原理图.pdf

Version 1.0MCM190, MCM195© 3141 785 30200Micro Systemall versions Published by YT 0522 Service Audio Printed in The Netherlands Subject to modification© Copyright 2005 Philips Consumer Electronics B.V. Eindhoven, The NetherlandsAll rights reserved. No part of this publication may be reproduced, stored in a retrievalsystem or transmitted, in any form or by any means, electronic, mechanical, photocopying,or otherwise without the prior permission of Philips.Handling chip components . 1-1Leadfree and safety information . 1-2Technical specification . 2-1Service test program . 2-1Service measurement setup . 2-2Connections and controls . 3-1.3-2Disassembly diagram . 4-1.4-2Set block diagram . 5-1Set wiring diagram . 5-2Display and key boardcircuit diagram . 6-1layout diagram . 6-2Main and AC power boardcircuit diagram. . 7-1.7-2layout diagram (component side) . 7-3layout diagram (copper side) . 7-4Cassette boardcircuit diagram . 8-1layout diagram . 8-2tape deck adjustment . 8-2Exploded view (main set) . 9-1Mechanical partslist . 9-2Electrical partslist . 10-1.10-2TABLE OF CONTENTS1 - 1HANDLING CHIP COMPONENTS1 - 22 - 1SERVICE TEST PROGRAM2 - 2SERVICE MEASUREMENTBandpass250Hz-15kHze.g. 7122 707 48001LF Voltmetere.g. PM2534DUTRF Generator e.g. PM5326S/N and distortion metere.g. Sound Technology ST1700BTuner FWUse a bandpass filter to eliminate hum (50Hz, 100Hz) and disturbance from the pilottone (19kHz, 38kHz).Ri=50½Bandpass250Hz-15kHze.g. 7122 707 48001LF Voltmetere.g. PM2534DUTS/N and distortion metere.g. Sound Technology ST1700BFrame aeriale.g. 7122 707 89001Tuner AM (MW,LW)To avoid atmospheric interference all AM-measurements have to be carried out in a Faraday«s cage.Use a bandpass filter (or at least a high pass filter with 250kHz) to eliminate hum (50Hz, 100Hz).RF Generator e.g. PM5326Ri=50½LRLEVEL METERe.g. Sennheiser UPM550with FF-filterS/N and distortion metere.g. Sound Technology ST1700BDUTCD RECORDERUse Audio Signal Disc SBC429 4822 397 30184(replaces test disc 3)Use Universal Test Cassette Fe SBC420 4822 397 30071LRLEVEL METERe.g. Sennheiser UPM550with FF-filterS/N and distortion metere.g. Sound Technology ST1700BDUTLF Generator e.g. PM5110Ri=50½3 - 1CONNECTION AND CONTROLS3 - 2CONNECTION AND CONTROLSFor more information onoperation instruction please visit Philips Audio internet site : http:/www.audio.philips.comxx4 - 1A1STEP A : Remove Back Cabinet- A1 : Remove 2 screws (SP3x12)- A2 : Remove 4 screws (SP3x10)- A3 : Remove 2 screws (K3x10)- A4 : Remove 2 screws (K3x10)STEP B : Remove CD Tray and Mains board- B1: Remove 4 screws (SP3x12)A3A2A2A4B1B1DISASSEMBLY DIADRAMSxx4 - 2DISASSEMBLY DIADRAMSSTEP C : Remove Main PCB Assy - Remove 3 screws (SP3x8)STEP D : Remove LCD PCB from Front Cabinet- E1 : Remove 10 screws (SP2.6x8)STEP E : Remove Tape Deck- H : Remove 4 screws (SP3x8)C1E1E1xx5 - 1SET BLOCK DIADRAM