JBL-PB12-sub-sch 维修电路原理图.pdf

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1、123456789101112131415ABCDEFGHI151413121110987654321IHGFEDCBAPart No:Date:Drawn:Rev.aMBD-30040901 (PREAMP)16-Aug-2001MS/LL1Sheet:1of2654321Un-designated ConnectorNOT USEDU1U2U1TLO64U1R16NOT USEDC91k C80rC70rR15NOT USEDR1756k2R1468k1R35137kR1333k2R92k7C5220pFC3220pFC2200uFC1200uF8109R27604rR34120kR246

2、04rR2833k2C19330pFC18330pFR1010kR1159kC6220pR InGNDL InR6R5R4R3100kR82k7C4220pFPhase SwitchSW SPDTLEVEL5k POTR1245k3U2LM324U2C17150nFC16100nFR3010kR264k7R3312k1132231R186k8R206k8U1U2C10100nFC12100nFC13100nFC11100nFR210rR196k8R226k8R230r LoPass Defeat Sw.SW SPDT131214131412321765657810913212312345678

3、9111210R14k7R24k7+15V-15VC21100nFC20100nFC23100nFC22100nF+15VGNDGNDSIG-15VmuteTo/From PWRAMPR2533k23rd Order Hi-Pass2nd Order LO-PASS2nd Order LO-PASSGAIN STAGERCA CONNECTORDUAL RCA123REMOTE NOT USEDRLB-POST HiLev I/OINRLOUTC30NOT USED2nd Order Hi-PassTo Pin 11 U1/U2To Pin 14 U1/U2+15V-15VLO PASS CO

4、NTROL 120k POTLO PASS CONTROL 220k POTLO PASS CONTROL 3NOT USEDLO PASS CONTROL 4NOT USED+15V-15VFrom PwrAmpFrom PwrAmp12LED112LED 2MOLEX 2D501N4148D511N4148D521N4148D531N4148D541N4148D551N4148LEVELOn Harness2 Clr LEDOn Harness2 Clr LEDMOLEX 212LED HARNESSSOCKETHEADERNOT USEDRadioFans.CN 收音机爱 好者资料库12

5、3456789101112131415ABCDEFGHI151413121110987654321IHGFEDCBAPart No:Date:Drawn:Rev.aMBD-30040901 (PWRAMP)16-Aug-2001MS/LL1Sheet:2of2654321Un-designated ConnectorNOT USEDBR RECTRS604R401kR411000kU1TLO64C411uFD121N5242BD141N4148C42100uFR431000kD111N4148U1TLO64R44100kR461000kR4710kQ12N5457R45470KC4010uFD

6、61N5234BC6100nFR7B10kR647RD11N4744AD21N4744AC21100nFC22100nFD31N5265BR38M2R1A7k5C3222uFU1TLO64R3410k411C273n3FR3323k7C2610nFR3247kR3147kU1TLO64R2242K2R23187kR266k8R3010kR291k2R281k2C20220nFC3100nFR553k6L28u5HL1220uHC104u7FC11330nFR15NOT USEDL38u5HL48u5HR10B0.1RR10C0.1RR10A0.1RQ102N5401R111kQ112N5401

7、R1347kR143k3R121kQ122N4401CZ100nFCWNOT USEDV+V-CMC3m6HC7A100nFC7B100nFR2B7k5C12200uFC22200uF9810R8A10kR8B10kR1B7k5R1C7k5R2C7k5R2A7k5121314R2710k411R7A10k+15VGNDGNDSIG-15Vmute21567R214K7D71N4148D81N4148R502k2R100NOT USED411411To U1 Pin 4 To U1 Pin 11SHORT CIRCUIT PROTECTSIGNAL LED & AUTO MUTETo/From

8、PREAMPD41N4938R433kUVLO+15-15R24NOT USEDR25NOT USEDCONNECTORC24330nFC25NOT USEDR7C10kR98M2123AV SWNOT USED+6VV+V-+15VS/DFRI/PGND-15VO/PMODULES64D51N4735AR484k7D131N4148R494k7LED1/2 PreampLED1/2 PreampR48 & R49 changed to 4k7SPK 1QUICK FIT TERMINALSPK 2QUICK FIT TERMINALAC QUICK FIT TERMINALGNDQUICK

9、FIT TERMINALAC QUICK FIT TERMINALR add220kL58u5HL68u5H123V+ LEDCX220nF400VR4222kD101N5242BOn FaceplateSW SPST5 X 20mm800mALTo AC To GNDTo AC 80130TRANSFORMER IS MOUNTED ON FACEPLATETRANS. PRI.QUICK FIT TERMINALQUICK FIT TERMINALLIVEC add10nFTRXAMXT003F!701533071380141801373052130521Power Cord30535*ALL SAFETY PRECAUTIONS IN THIS MANUAL SHOULD BEFOLLOWED DURING SERVICING. COMPONENTS IDENTIFIEDWITH THE IEC SYMBOLDESIGNATED COMPONENTS IN WHICH SAFTETY CAN BE OFSPECIAL SIGNIFICANCE WHEN REPLACING A COMPONENTIDENTIFIED WITH .IN THE SCHEMATIC DIAGRAM ARERadioFans.CN 收音机爱 好者资料库