Philips-MAS-139-Service-Manual电路原理图.pdf
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 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 . 2-2Connections and controls . 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) . 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 : 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 : > 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: 255 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 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 CONTROLS 8_kZ#ONTROLS#ONTROLSONTHESYSTEMANDREMOTECONTROL,#$ISPLAYnSHOWSTHESTATUSOFTHESYSTEMI23%.3/2nINFRAREDSENSORFORREMOTECONTROL02/'2!-02/' FOR#$PROGRAMSTRACKSANDREVIEWSTHEPROGRAM34!.$“9 /.N0/7%2N nSWITCHESTHESYSTEMTOSTANDBYON FOR#$STARTSORPAUSES#$PLAYBACK3%!2#(G FOR#$SKIPSTOTHEBEGINNINGOFACURRENTTRACKPREVIOUSNEXTTRACKFASTSEARCHESBACKANDFORWARD WITHINATRACK#$FORCLOCKTIMERADJUSTSTHEHOURSANDMINUTESFORCLOCKTIMERFUNCTIONS3OURCESELECTOR#$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,!9nDISPLAYTHECURRENTTIME$“$YNAMIC“ASS“OOST nENHANCESTHEBASS6/,5-%nADJUSTSTHEVOLUMELEVEL8nnCONNECTHEADPHONES4APE$ECK/PERATION2%#/2$ STARTSRECORDING0,!9STARTSPLAYBACK2%7à&&7$áFASTREWINDSFORWARDSTHETAPE34/0s/0%. STOPSTHETAPEOPENSTHETAPECOMPARTMENT0!53%ÅPAUSESRECORDINGORPLAYBACK2%0%!4FOR#$REPEATSATRACK#$PROGRAMMEENTIRE#$3(5&&,% FOR#$PLAYS#$TRACKSINRANDOMORDER3,%0nACTIVATESDEACTIVATESORSELECTSTHESLEEPERTIMEk-54%nSWITCHESPLAYBACKSOUNDOFFANDON_4)-%2/./&&nACTIVATESDEACTIVATESTHETIMERZ$3#$IGITAL3OUND#ONTROL nSELECTSSOUNDCHARACTERISTICS#,!33)#*!:0/02/#+aíëFOR#$SKIPSTOTHEBEGINNINGOFACURRENTTRACKPREVIOUSNEXTTRACKFORCLOCKTIMERADJUSTSTHEHOURSANDMINUTSFORCLOCKTIMERFUNCTIONSFOR#$FASTSEARCHESBACKANDFORWARDWITHINATRACK#$0OWERSWITCHnTURNSOFFTHEPOWERSUPPLYTOTHESYSTEM3 - 2CONNECTION AND CONTROLS0REPARATIONS2EARCONNECTIONS 4HETYPEPLATEISLOCATEDATTHEBACKOFTHE SYSTEM0OWERn“EFORECONNECTINGTHE!#POWERCORDTOTHEWALLOUTLET ENSURETHATALLOTHERCONNECTIONS HAVEBEENMADEn)FYOURSYSTEMISEQUIPPEDWITHA6OLTAGE3ELECTOR SETTHE6/,4!'%3%,%#4/2TOTHELOCALPOWERLINEVOLTAGE7!2.).' n&OROPTIMALPERFORMANCE USEONLYTHEORIGINALPOWERCABLEn.EVERMAKEORCHANGEANYCONNECTIONSWITHTHEPOWERSWITCHEDON3PEAKERS#ONNECTION&RONT3PEAKERS#ONNECTTHESPEAKERWIRESTOTHE30%!+%23TERMINALS RIGHTSPEAKERTO2)'(4ANDLEFTSPEAKERTO,%&4 COLOUREDMARKED WIRETO+ANDBLACKUNMARKED WIRETO-&ULLYINSERTTHESTRIPPEDPORTIONOFTHESPEAKERWIREINTOTHETERMINALASSHOWN.OTES n&OROPTIMALSOUNDPERFORMANCE USETHESUPPLIEDSPEAKERSn$ONOTCONNECTMORETHANONESPEAKERTOANYONEPAIROF+-SPEAKERTERMINALSn$ONOTCONNECTSPEAKERSWITHANIMPEDANCELOWERTHANTHESPEAKERSSUPPLIED0LEASEREFERTOTHE30%#)&)#!4)/.3SECTIONOFTHISMANUALSPEAKERRIGHT SPEAKERLEFT )NSERTINGBATTERIESINTOTHEREMOTECONTROL)NSERTTWOBATTERIESTYPE2OR!INTOTHEREMOTECONTROLWITHTHECORRECTPOLARITYASINDICATEDBYTHEh vANDhvSYMBOLSINSIDETHEBATTERYCOMPARTMENT#!54)/.n2EMOVEBATTERIESIFTHEYAREEXHAUSTEDORWILLNOTBEUSEDFORALONGTIMEn$ONOTUSEOLDANDNEWORDIFFERENTTYPESOFBATTERIESINCOMBINATION n“ATTERIESCONTAINCHEMICALSUBSTANCES SOTHEYSHOULDBEDISPOSEDOFPROPERLY0REPARATIONSxx4 - 1DISASSEMBLY DIADRAMSAA. Remove CD DoorB2B3B1B. Remove Top CabinetB1: Remove screws SP 3x6 - 6 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
