Pioneer-MLA21-pwr-sm 维修电路原理图.pdf
ORDER NO.PIONEER CORPORATION 4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, JapanPIONEER ELECTRONICS SERVICE, INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A.PIONEER EUROPE NV Haven 1087, Keetberglaan 1, 9120 Melsele, BelgiumPIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936 PIONEER CORPORATION 2000cTHIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).M-LA21RRV2393T IZK OCT. 2000 Printed in JapanSTEREO POWER AMPLIFIER1. SAFETY INFORMATION.22. EXPLODED VIEWS AND PARTS LIST.33. SCHEMATIC DIAGRAM.64. PCB CONNECTION DIAGRAM.125. PCB PARTS LIST.186. ADJUSTMENT.19CONTENTS7. GENERAL INFORMATION.20 7.1 DIAGNOSIS.20 7.1.1 SINGLE OPERATION METHOD.20 7.1.2 DISASSEMBLY.218. PANEL FACILITIES AND SPECIFICATIONS.23LA21STEREO POWER AMPLIFIERDINAMIC OFF _ ONDYNAMIC MODEHIGH EFFICIENTAMPLIFIERPOWER OUTPUTComponentModelService manualRemarksCOMPACT MINI COMPONENTX-LA21RRV2370 STEREO CD TUNERXC-LA21RRV2392 STEREO POWER AMPLIFIERM-LA21RRV2393This manual. SPEAKER SYSTEMS-LA21RRV2394 System component Table This product is a system(s) component.This product does not function properly independently ; to avoid malfunctions, besure to connect it to the prescribed system component(s), otherwise damage mayresult. Please connect it to the STEREO CD TUNER XC-LA21, for operation inspection.TypeModelPower RequirementThe voltage can be converted byM-LA21the following method.DBDXCNAC110-127V / 220-230V / 240VWith the Voltage SelectorDDXCN/ARAC110-127V / 220-230V / 240VWith the Voltage SelectorRadioFans.CN 收音机爱 好者资料库2M-LA211. SAFETY INFORMATIONThis service manual is intended for qualified service technicians ; it is not meant for the casual do-it-yourselfer. Qualified technicians have the necessary test equipment and tools, and have been trainedto properly and safely repair complex products such as those covered by this manual.Improperly performed repairs can adversely affect the safety and reliability of the product and mayvoid the warranty. If you are not qualified to perform the repair of this product properly and safely, youshould not risk trying to do so and refer the repair to a qualified service technician.WARNINGThis product contains lead in solder and certain electrical parts contain chemicals which are known to the state of California to causecancer, birth defects or other reproductive harm.Health & Safety Code Section 25249.6 Proposition 65NOTICE(FOR CANADIAN MODEL ONLY)Fuse symbols (fast operating fuse) and/or (slow operating fuse) on PCB indicate that replacement parts mustbe of identical designation.REMARQUE(POUR MODLE CANADIEN SEULEMENT)Les symboles de fusible (fusible de type rapide) et/ou (fusible de type lent) sur CCI indiquent que les picesde remplacement doivent avoir la mme dsignation.ANY MEASUREMENTS NOT WITHIN THE LIMITSOUTLINED ABOVE ARE INDICATIVE OF A POTENTIALSHOCK HAZARD AND MUST BE CORRECTED BEFORERETURNING THE APPLIANCE TO THE CUSTOMER.2. PRODUCT SAFETY NOTICE Many electrical and mechanical parts in the appliancehave special safety related characteristics. These areoften not evident from visual inspection nor the protectionafforded by them necessarily can be obtained by usingreplacement components rated for voltage, wattage, etc.Replacement parts which have these special safetycharacteristics are identified in this Service Manual. Electrical components having such features are identifiedby marking with a on the schematics and on the parts listin this Service Manual.The use of a substitute replacement component which doesnot have the same safety characteristics as the PIONEERrecommended replacement one, shown in the parts list inthis Service Manual, may create shock, fire, or other hazards. Product Safety is continuously under review and newinstructions are issued from time to time. For the latestinformation, always consult the current PIONEER ServiceManual. A subscription to, or additional copies of, PIONEERService Manual may be obtained at a nominal charge fromPIONEER.1. SAFETY PRECAUTIONS The following check should be performed for thecontinued protection of the customer and servicetechnician.LEAKAGE CURRENT CHECK Measure leakage current to a known earth ground (waterpipe, conduit, etc.) by connecting a leakage current testersuch as Simpson Model 229-2 or equivalent between theearth ground and all exposed metal parts of the appliance(input/output terminals, screwheads, metal overlays, controlshaft, etc.). Plug the AC line cord of the appliance directlyinto a 120V AC 60Hz outlet and turn the AC power switchon. Any current measured must not exceed 0.5mA.(FOR USA MODEL ONLY)LeakagecurrenttesterReading shouldnot be above0.5mADeviceundertestTest allexposed metalsurfacesAlso test withplug reversed(Using AC adapterplug as required)EarthgroundAC Leakage TestRadioFans.CN 收音机爱 好者资料库3M-LA212. EXPLODED VIEWS AND PARTS LISTNOTES: Parts marked by NSP are generally unavailable because they are not in our Master Spare Parts List. The mark found on some component parts indicates the importance of the safety factor of the part. Therefore, when replacing, be sure to use parts of identical designation. Screws adjacent to mark on the product are used for disassembly.2.1 PACKING (X-LA21)SYSTEMSPEAKERREARXC-LA21REARM-LA21FRONTFRONTFRONTFRONTTOP SIDETOP SIDE133151474111715161920DDXCN/AR Only9(2/2)10109(1/2)8(2/2)128(1/2)1818118(2/2)12128(1/2)62(1) PACKING PARTS LISTMark No. Description Part No.1AM Loop AntennaANT-PMT1E-AL2Remote Control UnitAXD72893RCA Audio Cable122003220100NSP4AAA Size R03 Batteries1301150040005FM Wire Antenna1320300010016Power-cord Plug Conversion Adaptor1380117220007Battery Door500RC46030708Polyform Unit800PMT1900019Polyfoam (Speaker)800PMT39000010Poly Foam Sheet (C) SP80199900000211Polythenefoam Sheet801999000005NSP12PE Polybag (AC Cord)805032115000NSP13PE Polybag (Remocon)805035105000NSP14PE Polybag (Antenna)805070100000NSP15PE Polybag (I Book)80508514000016Operating Instructions811PMT391011(English/Spanish/Chinese)17CartonSee Contrast table (2)18Corrugate Card81500140521319Additional Sheet810PMT39501020Correction SheetSee Contrast table (2)(2) CONTRAST TABLEX-LA21/DBDXCN and DDXCN/AR are constructed the same except for the following :Part No.MarkNo.Symbol and DescriptionX-LA21X-LA21Remarks/DBDXCN/DDXCN/AR17Carton813PMT393020813PMT39301020Correction SheetNot used810PMT3950204M-LA2122151825116329494249535252474852525320535053535352533153535334287565253105454535350121945134313233(3)494094535353535353535352523053351714253626383736395556DDXCN/AR OnlyDDXCN/AR Only574446445227BCCEGBDDAFFHGAEH11232421DBCAFEGDBDXCN Only2.2 EXTERIOR SECTION5M-LA211AMP AssyPMT1LA100011 2TRANSFORMER AssyPMT1LA100031 3PRIMARY AssyPMT1LA1000414JACK AssyPMT1LA1000215POWER METER AssyPMT1LA1000816LED AssyPMT1LA100051 7HP JACK AssyPMT1LA1001118 NSP9PROTECTION PCBPMT1LA10014110S-Assy PMT3 FP01SUBPMT3AMFP11Meter AssySUBPMT3MTRNSP12Heat Sink Board033PMT1LS10013DC Cord122006020060 14Transformer (TR701)1236C0250140 15Fuse124010020001(F322, F323 : T1AL/250V) 16Fuse124025020001(F328, F329 : T2.5A/250V) 17Fuse (F321 : T3.15A/250V)124031520003 18Fuse124063020001(F324-F327 : T6.3AL/250V) 19AC CordSee Contrast table (2)20Back CoverSee Contrast table (2)21Diffuser Lens500PMT30900022Top Panel500PMT31100123Meter Holder505PMT30700024Lens Holder505PMT30800025Rectifier PCB Bracket505PMT37000026PCB Bracket-R505PMT37200027Mounting Bracket50526642200028Power Knob510PMT312001(1) EXTERIOR SECTION PARTS LISTMark No. Description Part No.Mark No. Description Part No.29Voltage Selector Knob510PMT31900030Side Panel-L600PMT11700231Side Panel-R600PMT118002NSP32Bottom Tray600PMT30200033Copper Post603PMT38100034Power Switch Bracket605PMT31300035Transformer Bracket605PMT31700036Mounting Bracket-1605PMT37300037Mounting Bracket-2605PMT37400038Mounting Bracket-3605PMT37500039Mounting Bracket-4605PMT37600040 41Heat Sink CDG-746130CDG7400042PCB Sheet650PMT37700043Bushing700PMT15600044Rubber Foot700PMT38400045Strain Relief Bushing70003602200046EMC LabelSee Contrast table (2)47Back LabelSee Contrast table (2)NSP48Serial Label80900000900049ScrewBBZ30P100FNI50ScrewBBZ30P180FMC51ScrewBBZ40P060FMC52ScrewBPZ30P100FNI53ScrewKBZ30P060FNI54Foot Stand509PMT32900055Holding PCBPMT1LA-100-12156Caution LabelSee Contrast table (2)57AC Cord LabelSee Contrast table (2)(2) CONTRAST TABLEM-LA21/DBDXCN and DDXCN/AR are constructed the same except for the following :Part No.MarkNo.Symbol and DescriptionM-LA21M-LA21Remarks/DBDXCN/DDXCN/AR19AC Cord13425022000013422012001620Back Cover500PMT303000500PMT38800046EMC Label809PMT394030Not used47Back Label809PMT396040809PMT39606056Caution LabelNot used809PMT39407057AC Cord LabelNot used809PMT394100M-LA216ABCD12341234POWER METER ASSY(PMT1LA100081)EJACK ASSY(PMT1LA100021)DAMP ASSY(PMT1LA100011)AIC601STK411-230POWER AMPLIFIERRL601PLY-DPDTLRSPEAKEROUT1814IC504BA4558NFrom XC-LA213(PH)(PH)(PH)44444477573. SCHEMATIC DIAGRAM3.1 OVERALL WIRING DIAGRAMM-LA217ABCD56785678TRANSFORMERASSY(PMT1LA100031)BPRIMAY ASSY(PMT1LA100041)CAC INPHONESHP JACK ASSY(PMT1LA100111)GLED ASSY(PMT1LA100051)F: AUDIO SIGNAL ROUTE(PH)(PH)From XC-LA213: AUDIO SIGNAL ROUTE (PHONES)(PH)D311Note : When ordering service parts, be sure to refer to EXPLODED VIEWS and PARTS LIST or PCB PARTS LIST.M-LA218ABCD12341234AMP ASSY (PMT1LA100011)010-550411-000AACN602136-08PMT3-200JCN22DMTZJ6.2AMTZJ6.2A018-030036-300A018-030036-300A2/21/2BA4558DXBA4558DX011-020602-001A011-025401-000ANJM78M12FANJM79M12FA006-033200-80D006-033200-63D004-022410-100004-022410-100003-030840-050003-030840-0503.2 AMP, TRANSFORMER and PRIMARY ASSYSAM-LA219ABCD56785678PRIMARY ASSY (PMT1LA100041)CTRANSFORMER ASSY(PMT1LA100031)BWH601136-05PMT3-350JWH1025-230041-000ACN604136-07PMT3-202JWH602136-04PMT3-350JCN1135-PHS060-060JCN8CN603136-06PMT3-200JCN4DCN23DAC IN2/21/2BA4558DXBA4558DX011-025401-000A011-020005-000A011-020005-000A011-020005-000A011-020005-000A011-020602-001A011-024001-000ABZ605MTZJ3.0ABZ604MTZJ3.0A010-024001-000A128-1221125-000Q617 DTA114YS008-801144-000AQ610 DTA114YS008-801144-000AD311011-024001-000A006-033200-63D006-033200-80D: AUDIO SIGNAL ROUTE (L ch): AUDIO SIGNAL ROUTE (PHONES)HPHPHPHP NOTE FOR FUSE REPLACEMENTFOR CONTINUED PROTECTION AGAINST RISK OF FIRE.REPLACE WITH SAME TYPE AND RATINGS ONLY.CAUTION -1240630200011240100200011240315200031240250200011240250200011236C0250140025-230041-000A122006020060AC CORD124250220000137-400001-000JNEUTRALLIVE135-PHS020-020J128-090109-000ACBAM-LA2110ABCD12341234CN23JK501118-000134-003JJK502118-020202-0001JJACK ASSY (PMT1LA100021)DWH602AAUDIO INL RIC504BA4558DXIC502BA4558DX1/2MTZJ9.1CMTZJ12B135-053259-040J004-033210-100004-056210-100004-056210-1003.3 JACK, POWER METER, LED and HP JACK ASSYSDM-LA2111ABCD56785678CN11136-11PMT3-200JCN2135-PHS110-110JCN22135-PHS080-080JCN3135-PHS070-070JCN4135-PHS070-070JCN13050-060060-200JCN16135-030060-200JCN17CN12136-17PMT3-200JCN20135-053259-040JJK503116-008020-000110-033162-003A110-033040-013APHONESPOWER METER ASSY(PMT1LA100081)EHP JACK ASSY(PMT1LA100111)GLED ASSY(PMT1LA100051)FCN602ACN604AIC502BA4558DX2/2: AUDIO SIGNAL ROUTE (L ch): AUDIO SIGNAL ROUTE (PHONES)HPHPHPHPHPHPHPHPHP JACK ASSYSW501 : DYNAMIC021-022322-000AGFEDM-LA2112ABCD12341234EEEZ2Z1WH601Q617P3R670D607D609D608D610CN603EC633IC605W603W607W606P2W601W602W605W604EC622EC623R305EC621IC604EC625EC626EC620EC624D612D611C618C619ORNBLUBLKWHTREDWHTYELORNREDBRNBLKPWRCTLCTLGNDMUTE16VAC2GND16VAC1ACVH2ACVL2ACGNDACVL1ACVH1NOTE FOR PCB DIAGRAMS : Part numbers in PCB diagrams match those in the schematic diagrams. The parts mounted on this PCB include all necessary parts for several destinations. For further information for respective destinations, be sure to check with the schematic diagram. View point of PCB diagrams.CapacitorConnectorP.C.BoardChip PartSIDE ASIDE BQ617AMP ASSYAWH1BCN1BSIDE AA4. PCB CONNECTION DIAGRAM4.1 AMP ASSYM-LA2113ABCD56785678EEEEEEEEEEEEEEEECN604EC608C637C636DZ605DZ604Z1BLKBLK.R681D616WH602P3W612W640D615D614Q616R672R671R669W639W638W637Q615W630C602C630C631C601C606CN602D613R622W613EC630EC631W633W628R659W614W625EC617R667D606R646R649R647R648W618W616W611W626Q606EC616EC619Q604R654R652EC615Q605R639W602W619W617P1W610W627W634W629W635R661R625EC622W624R618R620EC614D601DZ603Q603Q602Q601R623R626R644R635R663R628R624R627R631R630R633R637R645R632R634R636R638R642R643R640R641EC610EC611EC607EC609C607C610C609C608EC612EC613C611C612IC603IC602W609L601L602W620W621W622W623R602R601DZ602DZ601R609R608EC626EC620EC624IC601R657C634C633R653R651R662R656Q613Q611Q614Q612Q610R629R604R664R650EC601R603EC602R605C603C604R615D602R610R607R612R617R606EC606R611EC605R613C635R658R668R621EC618R665Q607RL601R616Q608EC603R619EC604R614Q609D604PMT1LA-01-01 AMP BOARDBONDWHTWHTREDBLKBLKORNWHTWHTWHTWHTREDPWRCTLAGNDL+R SIGSPKRGNDGNDSPKL-12V+12VGNDHPRCHHPGNDHPLCHSPKCTLAGNDRINAGNDLINCTL GNDQ617IC603IC602Q603Q602Q601IC601Q609Q616Q610Q607Q615 Q604Q606 Q605Q611 Q613Q614 Q612Q608CN23DCN4DCN22DAM-LA2114ABCD12341234CN9CN8PWRCTLGND.PWRJ2F329J1F328NLSW301C321RL301R308C316C315L301F321D311BONDBRNBLUYELORNREDBLKF321F328F329LNPRIMARY BOARDPMT1LA-01-04PRIMARYDANGERMUTECTLGNDPRIMARY ASSYCAC INNEUTRALLIVESIDE AC4.2 TRANSFORMER and PRIMARY ASSYSM-LA2115ABCD56785678CN10WH1CN1PT1BRNBLUYELORNREDBLKF326F327F325F324F323F322ORNBLUBLKWHTREDBLKPWRCTLGNDTRANSFORMER BOARDPRIMARY DANGERGND16VAC116VAC2MUTEACVH2ACVL2ACGNDACVL1ACVH1PMT1LA-01-03TRANSFORMER ASSYBCN603AWH601ASIDE ABM-LA2116ABCD12341234MSSOP36-P-450-0.AR577R589CN4J564J563D511C558R581R591R520EC541R576Q512EC562EC561CN22CN23CN3CN2W1J54J83J82R575Q513J81R555J80J78J74EC560EC559J71EC546Z2Z1J68J67C557C556R506Q518C549R505R504R503Q517C548R502R501R507Q516C547R599R598Q515R597R596R594R593DZ506EC549R592Q514R570R569J61J59C546EC548EC537R561EC531R560J52J40J39J29C545C544R588R587R586R585R584JK502JK501C531R580R579R572R571EC534EC533R567C543C541C539R590R558IC504R557C535R529EC530C533R530C532R554R553R552R550R551R549C530C529C528R548R547C524R542R534R533R532R545C523C520C519C518C517C516R521R523R522C525R518IC512Q501Q511Q503Q502Q504D510D506DZ504D509DZ505EC520EC518EC515EC517EC513EC512EC511EC521EC528EC527EC526EC525EC524EC523EC522EC545EC535EC544EC532EC529EC536EC514IC502BONDBONDBONDBONDPWRCTLAGNDJACK BOARDFOR NON-KARAOKETO EC522TO EC523RCHOUTAGNDAGND-12VAGND+12VHPSWHPRCHHPGNDHPLCH+12V-12V+12VECHOSIG1ECHOSIG2LINRINGNDMICINMICSWVOLGNDPMT1LA-01-02MICGNDMICSIG1MICSIG2-6dB SWMETERMETERINGNDHPRCHHPGNDHPLCHHPSWLCHOUTGNDGNDSPKRSPKLQ511Q515Q518Q517Q513Q512Q501Q502Q503Q504IC502IC504IC512Q516Q514JACK ASSYDCN12EWH602ACN604ACN11ECN602ASIDE AD4.3 JACK ASSYM-LA2117ABCD12341234M METERW6CN12CN13CN11CN15CN14W2W1W5W3W4CN16R574R573CN17LED501LED503LED502EC556EC557C551R565EC555R564R568EC558W554W552CN20JK504CN19IC506JK503SW501PMT1LA-01-11PMT1LA-01-05PMT1LA-01-08ECHOS1+12VECHOS2VOLGNDMICS2-12VMICS1MIC SW-12VMIC+12VMIC GND+12VDYNAMICHP LchHP GNDHP RchHP SWHPSWDYNAMIC+12VHP SW+12VDYNAMICMICS1-12VECHOS2+12V+12VDYNAMIC+12vGNDMICECHOS1MICS2MIC SWMIC GNDMICLED GNDMETERVOLGNDHP RchHP GNDHP LchPMT1LA-01-11PMT1LA-01-05PMT1LA-01-08MIC SWMIC GNDMICHPRCHHPLCHHPGNDDYNA+12vGND-12VHP JACK ASSYGLED ASSYFPOWERMETERASSYECN3DCN2DSIDE AGFE4.4
