Philips-MCM-138-D-Service-Manual电路原理图.pdf

MCM138D/allTABLE OF CONTENTSPageHandling chip components .1-1Technical Specifications .2-1Service Tool .2-1Measurement setup .2-2Connections and Controls .3-1.3-2Set Block diagram .4-1Set Wiring diagram .4-2Disassembly diagram .5-1Main boardCircuit diagram .6-1.6-2Layout diagram .6-3.6-4Display&Tuner board - Circuit diagram .7-1.7-2Display&Tuner board - Layout diagram .7-3.7-4 Power board - Circuit diagram .8-1Power board - Layout diagram .8-2 Set Mechanical Exploded view .9-1Mechanical Service parts list .9-2.9-3Electrical Service parts list.10-1 . 10-5©Copyright 2009 Philips Consumer Electronics B.V. Eindhoven, The NetherlandsAll rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise without the prior permission of Philips.Published by LX 0950- Service Audio Printed in The Netherlands Subject to modificationDocking Entertainment SystemVersion 1.2© 3141 785 31702R evision list . . 11-11 - 12 - 1TECHNICAL SPECIFICATIONS 2 - 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 CONTROLSSET BLOCK DIAGRAM4 - 1SET WIRING DIAGRAM4 - 2DISASSEMBLY DIAGRAMDismantling of the Bottom Cabinet1) Remove 4 screws A as indicated to loosen the Rear Cabinet. 2) Remove 2 screws B as indicated to loosen the Bottom Cabinet.Dismantling of the Front Cabinet and Main Board1) Remove 2 screws C as indicated to loosen the Front Cabinet.2) Remove 5 screws D as indicated to loosen the Main Board.ABBOTTOM CAB.CE5 - 1 5 - 1CIRCUIT DIAGRAM - MAIN BOARDCD PART6 - 16 - 1