Marantz-PM8004KIPL-int-sm 电路图 维修手册.pdf
Service Manual Some illustrations using in this service manual are slightly different from the actual set. Please use this service manual with referring to the operating instructions without fail. For purposes of improvement, specifications and design are subject to change without notice. Integrated Amplifier PM8004 /K1SG/U1B PM-KI-PEARL-LITE /N1SG/N1B N2SG/N2B PM8004 PM-KI-PEARL-LITE PM8004 PM-KI-PEARL-LITE S0177-0V02DM/DG1011Copyright 2010 D 1. KOA Corporation Part No. (MJI) Type No. (KOA) Description 00MNH05 140 RF25S J (5% 1/4W) 00MNH05 120 RF50S J (5% 1/2W) 00MNH85 110 RF73B2A J (5% 1/10W) 00MNH95 140 RF73B2E J (5% 1/4W) 2. Matsushita Electronic Components Co., Ltd Part No. (MJI) Type No. (MEC) Description 00MNF05 140 ERD-2FCJ (5% 1/4W) 00MRF05 140 00MNF02 140 ERD-2FCG (2% 1/4W) 00MRF02 140 Examples ; * Resistance value 0.1 .001 10 .100 1k .102 100k . 104 0.5 .005 18 .180 2.7k .272 680k . 684 1 .010 100 .101 10k .103 1M . 105 6.8 .068 390 .391 22k .223 4.7M . 475 NOTE ON FUSE : Regarding to all parts of parts code 00MFS20 xxx2xx, replace only with Wickmann-Werke GmbH, Type 372 non glass type fuse. NOTE ON SAFETY FOR FUSIBLE RESISTOR : Resistance value Resistance value (0.1 10k) Resistance value Resistance value ANT. : ANTENNA BATT. : BATTERY CAP. : CAPACITOR CER. : CERAMIC CONN. : CONNECTING DIG. : DIGITAL HP : HEADPHONE MIC. : MICROPHONE -PRO : MICROPROCESSOR REC. : RECORDING RES. : RESISTOR SPK : SPEAKER SW : SWITCH TRANSF. : TRANSFORMER TRIM. : TRIMMING TRS. : TRAMSISTOR VAR. : VARIABLE XTAL : CRYSTAL NOTE ON SAFETY : Symbol z Fire or electrical shock hazard. Only original parts should be used to replaced any part marked with symbol z. Any other component substitution (other than original type), may increase risk of fire or electrical shock hazard. 安全上注意 : z 部品、安全上重要部品。必指定 部品番号部品使用下。 ABBREVIATION AND MARKS PARTS INFORMATION RESISTORS 1) 00MGD05 140, Carbon film fixed resistor, 5% 1/4W 2) 00MGD05 160, Carbon film fixed resistor, 5% 1/6W Examples ; Resistance value 0.1 .001 10 .100 1k .102 100k .104 0.5 .005 18 .180 2.7k .272 680k .684 1 .010 100 .101 10k .103 1M .105 6.8 .068 390 .391 22k .223 4.7M .475 Note : Please distinguish 1/4W from 1/6W by the shape of parts used actually. CAPACITORS CERAMIC CAP. 3) 00MDD1 370, Ceramic capacitor Disc type Temp.coeff.P350 N1000, 50V Examples ; Tolerance (Capacity deviation) 0.25pF. 0 0.5pF. 1 5%. 5 Tolerance of COMMON PARTS handled here are as follows : 0.5pF 5pF .0.25pF 6pF 10pF .0.5pF 12pF 560pF .5% Capacity value 0.5pF .005 3pF .030 100pF .101 1pF .010 10pF .100 220pF .221 1.5pF .015 47pF .470 560pF .561 CERAMIC CAP. 4) 00MDK16 300, High dielectric constant ceramic capacitor Disc type Temp.chara. 2B4, 50V Examples ; Capacity value 100pF .101 1000pF . 102 10000pF .103 470pF .471 2200pF . 222 ELECTROLY CAP. ( ) 5) 00MEA 10, Electrolytic capacitor One-way lead type, Tolerance 20% Examples ; Capacity value 0.1F .104 4.7F .475 100F . 107 0.33F .334 10F .106 330F . 337 1F .105 22F .226 1100F . 118 2200F . 228 Working voltage 6.3V .006 25V .025 10V .010 35V .035 16V .016 50V .050 FILM CAP. ( ) 6) 00MDF15 350 Plastic film capacitor 00MDF15 310 One-way type, Mylar 5% 50V 00MDF16 310 Plastic film capacitor One-way type, Mylar 10% 50V Examples ; Capacity value 0.001F (1000pF) .102 0.1F .104 0.0018F .182 0.56F .564 0.01F .103 1F .105 0.015F .153 Capacity value Tolerance Capacity value Resistance value Working voltage Capacity value Capacity value 060522 MZ NOTE FOR SCHEMATIC DIAGRAM WARNING: Parts marked with this symbol z have critical characteristics. Use ONLY replacement parts recommended by the manufacturer. CAUTION: Before returning the unit to the customer, make sure you make either (1) a leakage current check or (2) a line to chassis resistance check. If the leakage current exceeds 0.5 milliamps, or if the resistance from chassis to either side of the power cord is less than 460 kohms, the unit is defective. WARNING: DO NOT return the unit to the customer until the problem is located and corrected. NOTICE: ALL RESISTANCE VALUES IN OHM. k=1,000 OHM / M=1,000,000 OHM ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD EACH VOLTAGE AND CURRENT ARE MEASURED AT NO SIGNAL INPUT CONDITION. CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR NOTICE. 5 TECHNICAL SPECIFICATIONSs DIMENSION Power output (20 Hz 20 kHz simultaneous drive of both channels) NU. 70W.x.2.(8.load) K. 65W.x.2.(8.load) NU. 100W.x.2.(4.load) K. 9W.x.2.(4.load) Total harmonic distortion (20Hz 20kHz simultaneous drive of both channels, 8 load) .0.02% Output band width (8 load, 0.05%) .5Hz.60kHz Frequency response (CD, 1W, 8 load) .5Hz.100kHz.3dB Dumping factor (8 load, 20Hz 20kHz) . .100 Input sensitivity/Input impedance PHONO (MM). .2mV/47k CD, TUNER, AUX/DVD, RECORDER .200mV/20k MAIN IN.1.6V/15k Output band width/Output impedance PRE OUT. 1.6V/600 Maximum allowable PHONO input level (1kHz) MM.100mV RIAA deviation (20Hz 20kHz) .0.5dB S/N (IHF-A, 8 load) PHONO (MM). .87dB.(5mV.input,.1W.output) CD, TUNER, AUX/DVD, RECORDER .106dB.(2V.input,.Rated.output) POWER AMP DIRECT IN .125dB.(Rated.output) Tone control Bass (50Hz).10dB Mid (900Hz).6dB Treble (15kHz).10dB Power requirement N.AC.230.V,.50/60.Hz U.AC.120.V,.60.Hz K.AC.220V,50Hz. Power consumption (EN60065).200W Standby power consumption.0.3W Weight (Amplifier) N1.11.2kg N2.11.8kg UK.12.2kg *.SPECIFICATION.for.China.is.different.from.SPECIFICATION.of.instruction.manual.in.description. s (unit : mm) 379 328.517.5 128(N)/ 130(U,K) 111.5(N)/ 113.5(U,K) 440 3316.5 N1UKN2 6 DISASSEMBLY Disassembleinorderofthearrowofthefigureoffollowingflow. Inthecaseofthere-assembling,assembleitinorderofthereverseofthefollowingflow. Inthecaseofthere-assembling,observeattentionofassemblingit. Ifwirebundlesareuntiedormovedtoperformadjustmentorpartsreplacementetc.,besuretorearrangethemneatly astheywereoriginallybundledorplacedafterward. Otherwise,incorrectarrangementcanbeacauseofnoisegeneration. FRONT PANEL ASSY Referto DISASSEMBLY 1. FRONT PANEL ASSY andEXPLODED VIEW TONEPWBASSY (Ref.No.ofEXPLODEDVIEW:P201) -COMPWBASSY (Ref.No.ofEXPLODEDVIEW:PU01) HEADPHONEPWBASSY (Ref.No.ofEXPLODEDVIEW:P791) SELPWBASSY (Ref.No.ofEXPLODEDVIEW:P181) STANDBYLEDPWBASSY (Ref.No.ofEXPLODEDVIEW:P191) POWERSWPWBASSY (Ref.No.ofEXPLODEDVIEW:P891) VOLUMEPWBASSY (Ref.No.ofEXPLODEDVIEW:P591) REAR PANEL Referto DISASSEMBLY 2. REAR PANEL andEXPLODED VIEW REARPANEL (Ref.No.ofEXPLODEDVIEW:901G) SIDE WOOD (N2SG/N2B model) s Referto EXPLODED VIEW TOP COVER POWER STAGE PWB ASSY Referto DISASSEMBLY 5.POWER STAGE PWB ASSY andEXPLODED VIEW POWERSTAGEPWBASSY (Ref.No.ofEXPLODEDVIEW:P701) STANDBY PWB ASSY Referto DISASSEMBLY 7.STANDBY PWB ASSY andEXPLODED VIEW STANDBYPWBASSY (Ref.No.ofEXPLODEDVIEW:P851) PHONO AMP PWB ASSY Referto DISASSEMBLY 3. PHONO AMP PWB ASSY andEXPLODED VIEW PHONOAMPPWBASSY (Ref.No.ofEXPLODEDVIEW:P401) SPK TERMINAL PWB ASSY Referto DISASSEMBLY 4. SPK TERMINAL PWB ASSY andEXPLODED VIEW SPKTERMINALPWBASSY (Ref.No.ofEXPLODEDVIEW:P751) MAIN PWB ASSY Referto DISASSEMBLY 6. MAIN PWB ASSY andEXPLODED VIEW MAINPWBASSY (Ref.No.ofEXPLODEDVIEW:P101) 7 About the photos used for descriptions in the DISASSEMBLY section. ThedirectionfromwhichthephotographsusedhereinwerephotographedisindicatedatDirectionofphotograph:* attheleftoftherespectivephotographs. Refertothetablebelowforadescriptionofthedirectioninwhichthephotosweretaken. Photographsforwhichnodirectionisindicatedweretakenfromabovetheproduct. ThephotographisPM-KI-PEARL-LITE. 1. FRONT PANEL ASSY (1) Removethescrews. (2) Removethescrews. The viewpoint of each photograph (Photografy direction) View from above Front side Direction of photograph: B Direction of photograph: D Direction of photograph: C Direction of photograph: A Proceeding : TOP COVERFRONT PANEL ASSY View from bottom 8 (3) Removethescrews. (4) Cutthewireclampband,thendisconnecttheconnectorwires.Removethescrews. Direction of photograph: D Direction of photograph: C N027 J901J811 N029 J281 J282 cut 9 (5) Removethenut. 2. REAR PANEL (1) Removethescrews. 3. PHONO AMP PWB ASSY (1) Removethescrews. Direction of photograph: B NUT Proceeding : TOP COVERREAR PANEL Direction of photograph: A Proceeding : TOP COVER PHONO AMP PWB ASSY Direction of photograph: A 10 (2) Disconnecttheconnectorwires.Removethescrews. 4. SPK TERMINAL PWB ASSY (1) Cutthewireclampband,thendisconnecttheconnectorwires. Direction of photograph: D J331 J283 Proceeding : TOP COVERSPK TERMINAL PWB ASSYREAR PANEL STYLE PIN : Loose cut Direction of photograph: B J754 J751 J755 11 (2) Removethenutsandthescrews. 5. POWER STAGE PWB ASSY (1) Cutthewireclampband,thendisconnecttheconnectorwires.Removethescrews. Direction of photograph: A NUT Proceeding : TOP COVERPOWER STAGE PWB ASSY J701 J702 J751 J709 J911 cut 12 (2) Cutthewireclampband,thenremovethescrews. 6. MAIN PWB ASSY (1) Removethescrews. (2) Disconnecttheconnectorwires.Removethescrews. cut Direction of photograph: C Proceeding : TOP COVERMAIN PWB ASSYFRONT PANEL ASSY Direction of photograph: A J811 J901 J281 J282 13 7. STANDBY PWB ASSY (1) Cutthewireclampband,thendisconnecttheconnectorwires.Removethescrews. (2) Cutthewireclampband,thendisconnecttheconnectorwires.Removethescrews. Proceeding : TOP COVERSTANDBY PWB ASSY Direction of photograph: A cut N038N102 N039 N025 N029 N027 14 SERVICE MODE Microprocessor (U101) version check (1) Connectthemainscordintotheunit. (2) PressthePOWERbuttonwithpressingtheSOURCEDIRECTbuttonontheUnit. (3) ThefirmwareversionisdisplayedonthefrontLED.(Displaytimeisonlyfor3seconds.) ThefirmwareversionisdisplayedinthelightingpositionofLED. Ex. : LightupRECORDER-21, Version : 1 LightupRECORDER-21andAUX/DVD4 , Version : 5 LightupRECORDER-21andCD8,Version : 9 (4) EachLEDlightupthenallLEDlightup. (5) TurnoffthepowertoquitServiceMode.(Theunittothedefaultstatus) AUX/DVDMUTERECORDER21TUNERPHONOCDTUNERAUX/DVDMUTERECORDER21TUNERPHONOCD Version : 8421 15 PROTECTION MODE Explanationofmicroprocessor(U101)PROT-1(pin6)andPROT-2(pin7). 1. The PROT-1 (pin6) is the port to detect the following abnormalities of the Power AMP (1) DetectionofanabnormalityintheDCoffsetvoltagefromtheSpeakerOutputterminal. IfthevoltagefromtheSpeakerOutputterminalexceedsapproximately1.2V(DC),Q955orQ956willturnonandthe signalfromthePROT-1terminalwillchangetoLfromH. (2) Detectionofanabnormalcurrentfromthepowertransistors(Q713Q716). Ifanelectriccurrentofover7AflowsinQ713orQ715,Q951,Q953andQ957turnon,andthesignalfromthe PROT-1terminalwillchangetoLfromH. Ifanelectriccurrentofover7AflowsinQ714orQ716,Q952,Q954andQ957turnon,andthesignalfromthe PROT-1terminalwillchangetoLfromH. (3) DetectionofanabnormaltemperatureoftheHeatSink. IfthetemperatureoftheHeatSinkexceedsapproximately+110degreesC,theposistor(R969)willturnonQ958 andthesignalfromthePROT-1terminalwillchangetoLfromH. Ifanyoftheabovethreeabnormalitiesisdetected,thesignalfromthePROT-1terminalwillchangetoLfromH,and theprotectioncircuitwillbeactivated,thesignalfromtheSPK_OUT(pin10)changingtoHfromLandthespeaker relaysL751,L752andL753immediatelyturnedoff. WhatthisprotectionoperationresultsinafterthisdependsonhowlongthesignalfromthePROT-1hastoremainL. IfthePROT-1(pin6)recoverstoHwithinasshortaperiodoftimeasonesecondorless. TheMUTEindicatorstartsflickering,therebyindicatesthattheprotectioncircuithascomeintooperationand automaticallyturnsdownthevolume.Theprotectioncircuitisdeactivatedafterapproximately15seconds,so thatreadjustingthevolumewillallownormaluseoftheunitagain.Thisprotectionoperationisintendedforthe situationwhereintheuserhasmisusedtheunittemporarilyandautomaticallyresetstheunitwhiletheampcircuitis functioningproperly. IfthePROT-1(pin6)remainsLformorethanonesecond. TheampwillbepoweredoffbytheP_ON(pin15)changingtoHfromLandPowerrelayS851turnedoffThen, theSTANDBYindicatorflickers,therebyindicatingthatanerrorhasoccurred.Thisprotectionoperationisintended forafailureintheampcircuitandimmediatelyturnsthepowerofftoavoidtheriskofanydamage. Dependingonhowtheuserishandlingtheunit,thisoperationmaybeperformednomatteriftheampisfunctioning properly. Tocheckiftheampisinorder,switchofftheunitandswitchitonagainoneminutelater.Thisactionwilldeactivate theprotectionoperation.IfthePROT-1(pin6)remainsL,whichconstitutesanabnormality,theunitshutsdown approximately3secondslaterandtheSTANDBYindicatorstartsflickering. Iftheprotectionoperationwillnotbedeactivatedafterthepoweristurnedonagain,theampcircuitmaybebroken. 2. The PROT-2 (pin7) is the port to detect abnormalities of the power supply circuit. (1) Detectionofanabnormalityinthepoweramppowersupplycircuit. Thisportmonitorsthemidpointvoltageofthepoweramppowersupplybetween+49Vand-49V.Ifthevoltageat theconnectionpointofR801andR802exceedsDC1.2V,Q903orQ904willturnontochangethesignalfromthe PROT-2(pin7)toLfromH. (2) Detectionofanabnormalityinthepreamppowersupplycircuit. Q901andQ902monitorthemidpointvoltagebetween+28Vand-28V
