Philips-MAS-139-Service-Manual电路原理图.pdf

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1、Version 1.1FWC139, MAS139 3141 785 30921Mini Systemall versions Published by YT 0610 Service Audio. Subject to modification Copyright 2006 Philips Consumer Electronics B.V. Eindhoven, The NetherlandsAll rights reserved. No part of this publication may be reproduced, stored in a retrievalsystem or tr

2、ansmitted, 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 . 2-2Connections and controls

3、 . 3-1.3-2Disassembly diagram . 4-1.4-2Block diagram . 5-1Wiring diagram . 5-2Key / LCD boardcircuit diagram . 6-1layout diagram . 6-2Cassette boardcircuit diagram . 7-1layout diagram . 7-2Main boardcircuit diagram (Tuner & CD) . 8-1circuit diagram (Power & Supply) . 8-2 layout diagram (main board)

4、. 8-3.8-4layout diagram (supply board) . 8-5.8-6Exploded view diagram . 9-1Accessories and Mechanical partslist . 9-2Electrical partslist . 10-1.10-2TABLE OF CONTENTS1 - 1HANDLING CHIP COMPONENTS1 - 22 - 1GENERAL:Mains voltage : 110-127/220-240V Switchable 220-230V (MAS139/77 only) Mains frequency :

5、 50/60 Hz Power consumption : 25 dB IF rejection : 75 dB Image rejection : 25 dB Distortion : 18 dB MWTuning range 9 kHz grid : 531 1602 kHz 10 kHz grid : 530 1700 kHz IF Frequency : 455 kHz g114 1kHz Aerial input : Loop antenna Sensitivity at 26sb S/N : 18 dB IF rejection : 45 dB Image rejection :

6、28 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. albums: 25, Max. titles: 2

7、55 Bit rate: 128 bits (recommended) SPECIFICATION2 - 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

8、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.Use a band

9、pass 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 disc 3)Us

10、e 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 CONTROLS 8_kZ#ONTROLS#ONTROLSONTHESYSTEMANDREMOTECONTROL,#$ISPLAYnSHOWSTHESTATUSOFTHESYSTEMI23%.

11、3/2nINFRAREDSENSORFORREMOTECONTROL02/2!-02/ FOR#$PROGRAMSTRACKSANDREVIEWSTHEPROGRAM34!.$“9 /.N0/7%2N nSWITCHESTHESYSTEMTOSTANDBYON FOR#$STARTSORPAUSES#$PLAYBACK3%!2#(G FOR#$SKIPSTOTHEBEGINNINGOFACURRENTTRACKPREVIOUSNEXTTRACKFASTSEARCHESBACKANDFORWARD WITHINATRACK#$FORCLOCKTIMERADJUSTSTHEHOURSANDMINU

12、TESFORCLOCKTIMERFUNCTIONS3OURCESELECTOR#$4!0%45.%2 nSELECTSTHERESPECTIVESOUNDSOURCEFOR#$4!0%45.%2#,/#+4)-%2nSETSTHECLOCKORTIMERFUNCTION“ANDSELECTOR-7&-&-34 FOR4UNERSELECTSWAVEBAND-7 &-MONO OR&-STEREO /0%.#,/3%nOPENCLOSETHE#$DOOR34/0FOR#$STOPS#$PLAYBACKORERASEA#$PROGRAM45.).nTUNESTOARADIOSTATION$)30,

13、!9nDISPLAYTHECURRENTTIME$“$YNAMIC“ASS“OOST nENHANCESTHEBASS6/,5-%nADJUSTSTHEVOLUMELEVEL8nnCONNECTHEADPHONES4APE$ECK/PERATION2%#/2$ STARTSRECORDING0,!9STARTSPLAYBACK2%7&7$FASTREWINDSFORWARDSTHETAPE34/0s/0%. STOPSTHETAPEOPENSTHETAPECOMPARTMENT0!53%PAUSESRECORDINGORPLAYBACK2%0%!4FOR#$REPEATSATRACK#$PRO

14、GRAMMEENTIRE#$3(5&,% FOR#$PLAYS#$TRACKSINRANDOMORDER3,%0nACTIVATESDEACTIVATESORSELECTSTHESLEEPERTIMEk-54%nSWITCHESPLAYBACKSOUNDOFFANDON_4)-%2/./&nACTIVATESDEACTIVATESTHETIMERZ$3#$IGITAL3OUND#ONTROL nSELECTSSOUNDCHARACTERISTICS#,!33)#*!:0/02/#+aFOR#$SKIPSTOTHEBEGINNINGOFACURRENTTRACKPREVIOUSNEXTTRACK

15、FORCLOCKTIMERADJUSTSTHEHOURSANDMINUTSFORCLOCKTIMERFUNCTIONSFOR#$FASTSEARCHESBACKANDFORWARDWITHINATRACK#$0OWERSWITCHnTURNSOFFTHEPOWERSUPPLYTOTHESYSTEM3 - 2CONNECTION AND CONTROLS0REPARATIONS2EARCONNECTIONS 4HETYPEPLATEISLOCATEDATTHEBACKOFTHE SYSTEM0OWERn“EFORECONNECTINGTHE!#POWERCORDTOTHEWALLOUTLET E

16、NSURETHATALLOTHERCONNECTIONS HAVEBEENMADEn)FYOURSYSTEMISEQUIPPEDWITHA6OLTAGE3ELECTOR SETTHE6/,4!%3%,%#4/2TOTHELOCALPOWERLINEVOLTAGE7!2.). n&OROPTIMALPERFORMANCE USEONLYTHEORIGINALPOWERCABLEn.EVERMAKEORCHANGEANYCONNECTIONSWITHTHEPOWERSWITCHEDON3PEAKERS#ONNECTION&RONT3PEAKERS#ONNECTTHESPEAKERWIRESTOTH

17、E30%!+%23TERMINALS RIGHTSPEAKERTO2)(4ANDLEFTSPEAKERTO,%&4 COLOUREDMARKED WIRETO+ANDBLACKUNMARKED WIRETO-&ULLYINSERTTHESTRIPPEDPORTIONOFTHESPEAKERWIREINTOTHETERMINALASSHOWN.OTES n&OROPTIMALSOUNDPERFORMANCE USETHESUPPLIEDSPEAKERSn$ONOTCONNECTMORETHANONESPEAKERTOANYONEPAIROF+-SPEAKERTERMINALSn$ONOTCONN

18、ECTSPEAKERSWITHANIMPEDANCELOWERTHANTHESPEAKERSSUPPLIED0LEASEREFERTOTHE30%#)&)#!4)/.3SECTIONOFTHISMANUALSPEAKERRIGHT SPEAKERLEFT )NSERTINGBATTERIESINTOTHEREMOTECONTROL)NSERTTWOBATTERIESTYPE2OR!INTOTHEREMOTECONTROLWITHTHECORRECTPOLARITYASINDICATEDBYTHEh vANDhvSYMBOLSINSIDETHEBATTERYCOMPARTMENT#!54)/.n

19、2EMOVEBATTERIESIFTHEYAREEXHAUSTEDORWILLNOTBEUSEDFORALONGTIMEn$ONOTUSEOLDANDNEWORDIFFERENTTYPESOFBATTERIESINCOMBINATION n“ATTERIESCONTAINCHEMICALSUBSTANCES SOTHEYSHOULDBEDISPOSEDOFPROPERLY0REPARATIONSxx4 - 1DISASSEMBLY DIADRAMSAA. Remove CD DoorB2B3B1B. Remove Top CabinetB1: Remove screws SP 3x6 - 6

20、pcs.B2: Remove screws MP 3x10 - 4 pcs.B3: Remove screws MP 3x10 - 4 pcs.4 - 2DISASSEMBLY DIADRAMS4 - 2C1C2C3C. Remove CD Loader C1: Remove screws SP 3x8 - 2 pcs.C2: Remove screws SP 3x15 - 2 pcs.C3: Remove screws SP 3x10 - 1 pcs.D1D. Remove Bottom Cabinet D1: Remove screws SP 3x10 - 2 pcs.E1E. Remove Main PCB Assy D1: Remove screws SP 3x10 - 2 pcs.F3F2F1F. Remove Key Board AssemblyF1: Remove screws SP 3x8 - 10 pcs.F2: Remove screws SP 3x8 - 2 pcs.F3: Remove screws SP 3x8 - 4 pcs.5 - 1 5 - 1SET BLOCK DIAGRAM