Philips-MAS-65-Service-Manual电路原理图.pdf

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1、Version 1.0MAS65 3141 785 30490Mini Systemall versions Published by YT 0525 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 retr

2、ievalsystem or transmitted, in any form or by any means, electronic, mechanical, photocopying,or otherwise without the prior permission of Philips.Handling chip components . 1-1Service tools . 1-1Leadfree and safety information . 1-2Technical specification . 2-1Service measurement setup . 2-2Connect

3、ions and controls . 3-1.3-3Disassembly diagram . 4-1.4-2Block diagram . 5-1Wiring diagram . 5-2Radio boardcircuit diagram . 6-1layout diagram . 6-2Cassette boardcircuit diagram . 7-1layout diagram . 7-2CD boardcircuit diagram. . 8-1layout diagram . 8-2Control and Main boardcircuit diagram (control b

4、oard) . 9-1circuit diagram (main board) . 9-2layout diagram . 9-3Power boardcircuit diagram . 10-1layout diagram . 10-2Exploded view diagram .11-1 .11-2Mechanical partslist .11-2Electrical partslist . 12-1TABLE OF CONTENTS1 - 1HANDLING CHIP COMPONENTS1 - 22 - 1SPECIFICATIONS GENERAL: Mains voltage :

5、 110-127/220-240V Switchable Mains frequency : 50/60 Hz Power consumption : 46 dB IF rejection : 50 dB Image rejection : 25 dB Distortion : 18 dB MWTuning range : 520 1710 kHz Grid : 10 kHz IF Frequency : 450 kHz g114 1kHz Aerial input : Loop antenna Sensitivity at 26sb S/N : 18 dB IF rejection : 28

6、 dB Image rejection : 32 dB Distortion : 35 dB with type 1 tape COMPACT DISC: Number of programming track : 32 Frequency response Within g114 1.5 dB : 20 Hz 20 kHz Signal/Noise ratio : 50 dB/A-weighted Distortion at 1 kHz : 25 dB Support disc format : Disc format ISO9660, single session CD Max album

7、s: 25, max. titles: 255 Bit rate : 128 bits (recommended) 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

8、from the pilottone (19kHz, 38kHz).Ri=50Bandpass250Hz-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 Faradays cage.U

9、se a bandpass filter (or at least a high pass filter with 250kHz) to eliminate hum (50Hz, 100Hz).RF Generator e.g. PM5326Ri=50LRLEVEL METERe.g. Sennheiser UPM550with FF-filterS/N and distortion metere.g. Sound Technology ST1700BDUTCD RECORDERUse Audio Signal Disc SBC429 4822 397 30184(replaces test

10、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=503 - 1CONNECTION AND CONTROLS3 - 2CONNECTION AND CONTROLS3 - 3CONNECTION AND CONTROLSFor more information on

11、operation instruction please visit Philips Audio internet site : http:/4 - 1DISASSEMBLY DIADRAMSA1A3A2A2B1A. Remove of Back cabinetA1 : Remove screw SP3x10 - 2 pcs.A2 : Remove screw SP3x25 - 5 pcs.A3 : Remove screw SP3x8 - 5 pcs. B. Remove of CD TrayB1 : Remove screw SP3x10 (Washer) - 2 pcs.4 - 2DISASSEMBLY DIADRAMSC1C. Remove of Main PCB AssemblyC1 : Remove screw SP3x10 - 2 pcs.D1D2D. Remove Tuner PBAS and CD PBASD1 : Remove screw SP3x8 - 3 pcs.D2 : Remove screw SP3x8 - 4 pcs.