CAudio-RA2000-pwr-sch维修电路原理图.pdf
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1、ABCDEFTitleNumberRevisionSizeA3Date:1-Jul-1999 Sheet of File:D:PROTELRANEWRAMAIN.S02Drawn By: ON AMPLIFIERS WITH FLAT PACK (J162 K1058) MOSFETS FIT A 10pF =250V WORKING ACROSS THE GATE, DRAIN OF EACH K1058 MOSFET QUIESCENT VOLTAGE ADJUSTMENT THIS IS MEASURED ACROSS THE GATE DRIVE AT POINTS A B TO GI
2、VE 300mV +/- 10mVDIAGRAM SHOWS RA1000 OUTPUT STAGE. RA2000 AND RA3000 OUTPUT STAGES DIFFER IN THE NUMBER OF OUTPUT DEVICES PER RAIL. THE RA2000 USES 4 DEVICES PER RAIL AND THE RA3000 USES 6 DEVICES PER RAIL. ADDITIONALOUTPUT DEVICES ARECONFIGURED SIMILARLY WITH 560R GATE RESISTORS AS SHOWN.D29IN4004
3、D28IN4004R581KR301KD20IN4004D19IN4004R14322RR14422RLABELLABELLABELLABELLABELLABELLABELLABELR111KC22220PFC31OPTC23C25100UFC24C29Z6Z5C28100UFC30100NFVR11KVR3470RQ15BF422Q14BF423Q12BF423Q19BF423Q18BF423Q17BF422Q16BF422Q13BF422Q11BF422Z46V2Z36V2D61N4148D51N4148D41N4148D31N4148D21N4148D11N4148R60OPTR5939
4、KR5782KR56100RR55680RR532K7R52330RR51100RR49100RR48100RR47100RR46100RR45100RR44100RQ6BC184LQ5BC184LQ4BF422Q3BF422Q2BF422Q10BF423Q9BF423Q8BC214LQ7BC214LQ1BF423R43330RR42220RR41220RR401K5R395K6R38220KR361KR35100RR3439KR33100RR32220KR31100RR2982KR28100RR27680RR252K7R24150RR127560RR128560RR115560RR11656
5、0RC42100NF/250VC41100NF/250VR7210R/2.5WR14610R/2.5WR7310R/2.5WCHOKE115 TURNSR37OPTC21OPTC20C17100UFC33C34OPTR50OPTR7147RC18BA100NF25V/16V100UF/16V100UF/100V100NF/250V100NF/LMB623RAMAIN 2CHANNEL 1 AMPLIFIERHT-LT-1HT+LT+1GNDO/P1GND1AMP1GATE RESISTORSR127 - R132GATE RESISTORSR115 - R120RadioFans.CN 收音机
6、爱 好者资料库ABCDEFTitleNumberRevisionSizeA3Date:1-Jul-1999 Sheet of File:D:PROTELRANEWRAMAIN.S03Drawn By:DIAGRAM SHOWS RA1000 OUTPUT STAGE. RA2000 AND RA3000 OUTPUT STAGES DIFFER IN THE NUMBER OF OUTPUT DEVICES PER RAIL. THE RA2000 USES 4 DEVICES PER RAIL AND THE RA3000 USES 6 DEVICES PER RAIL. ADDITIONA
7、LOUTPUT DEVICES ARECONFIGURED SIMILARLY WITH 560R GATE RESISTORS AS SHOWN. QUIESCENT VOLTAGE ADJUSTMENT THIS IS MEASURED ACROSS THE GATE DRIVE AT POINTS A B TO GIVE 300mV +/- 10mV ON AMPLIFIERS WITH FLAT PACK (J162 K1058) MOSFETS FIT A 10pF =250V WORKING ACROSS THE GATE, DRAIN OF EACH K1058 MOSFETR1
8、0547RD31IN4004D32IN4004R781KR1081KD22IN4004D21IN4004R14222RR14522RLABELLABELLABELLABELLABELLABELLABELLABELR881KC61220PFC47OPTC59C56100UFC60C54Z9Z8C55100UFC50100NFVR21KVR4470RQ28BF422Q31BF423Q33BF423Q26BF423Q27BF423Q29BF422Q30BF422Q32BF422Q34BF422Z106V2Z116V2D141N4148D131N4148D161N4148D151N4148D181N4
9、148D171N4148R76OPTR7739KR7982KR80100RR81680RR832K7R84330RR86100RR87100RR90100RR91100RR92100RR93100RR89100RQ39BC184LQ40BC184LQ41BF422Q42BF422Q43BF422Q35BF423Q36BF423Q37BC214LQ38BC214LQ44BF423R106330RR107220RR94220RR951K5R965K6R97220KR981KR99100RR10039KR101100RR102220KR104100RR10982KR110100RR111680RR1
10、132K7R114150RR133560RR134560RR121560RR122560RC43100NF/250VC44100NF/250VR7410R/2.5WR14710R/2.5WR7510R/2.5WCHOKE215 TURNSR103OPTC62OPTC63C66100UF/100VC65100UF/100VC52C51OPTR85OPT100NF25V/16V100UF/16V100UF/100V100NF/250V100NF/LMB633RAMAIN 3CHANNEL 2 AMPLIFIERHT-LT-2HT+LT+2GNDO/P2GND2AMP2GATE RESISTORSR
11、133 - R138GATE RESISTORSR121 - R126ABRadioFans.CN 收音机爱 好者资料库ABCDEFTitleNumberRevisionSizeA3Date:1-Jul-1999 Sheet of File:D:PROTELRANEWRAMAIN.S01Drawn By: NOTE:- FOR AMPS WITH FLAT PACK MOSFETS MC33079 IC IS FITTED TO POSITION IC1RA3000/1 R10, R23 6K8/1WRA2000/1 R10, R23 6K8/1WRA1000/1 R10, R23 4K7/1
12、WLABELLABELLABELLABELLABELLABELLABELVOL150K LINVOL250K LIN231XLR4231XLR1231XLR3231XLR2SW2321411IC1AMC33079R11KR29K1R31KR49K1R510KR6100KR71KR847KR9100KR10R1210KR13100KR1410KR151KR161KR179K1R189K1R1910KR20100KR211KR22100KR23567IC1BMC330791098IC1CMC33079C1220PFC2220PFC310PFC710PFC810PFC910PFC10220PFC11
13、220PFC1210PFC4100UF/16VC6100UF/16VC13100UF/16VC14100UF/16VC15100UF/16VZ118VZ218VC5100UF/25VC16100UF/25VJACK1JACK2RGND10R/2.5WSW1COAX2SYMCOAX2SYMCOAX2SYMCOAX2SYMCOAX2SYMCOAX2SYMCOAX1SYMCOAX1SYMLABELLABELCOAX2SYMCOAX2SYMCOAX2SYMCOAX2SYM131214IC1DMC33079SEE NOTE:-RA INPUT PCBAMP1AMP2HT-GNDHT+GND1GND2LT
14、+LEDBRREDYELLREDSCRSCRREDBLUEREDBLUESCRGREENGREENREDBLUESCRBLUEREDSCRREDBLUESCRGROUND LINKSWITCHBRIDGE/STEREOMODE SWITCHINPUT STAGE CIRUITRY316LMBRAMAIN 1ABCDEFTitleNumberRevisionSizeA3Date:1-Jul-1999 Sheet of File:D:PROTELRANEWRAMAIN.S04Drawn By:VOLTAGE FUSE1 SOFTSTART 100V 2A T 22R/23W110V 2A T 22
15、R/23W220V 1.6A F 47R/23W240V 1.6A F 47R/23WTRANSFORMER SECONDARY VOLTAGESQUOTED VOLTAGES ARE OFF LOAD AC (RMS) RA1000 RA2000 RA3000RED 47 58 68ORANGE 47 58 68YELLOW 0 0 0GREEN 52 63 73BLUE 52 63 73RA3000 C69, C70, C71, C72, C75, C76, C77, C78 4700UF/110VRA2000 C69, C70, C71, C72, C75, C76, C77, C78
16、4700UF/110VRA1000 C69, C70, C75, C76 4700UF/110V C71, C72, C77, C78 NOT FITTED9LABEL2LABEL5LABEL4LABELSOFTSTARTFUSE 1LABELLABELLABELLABELLABELLABELLABELFUSE4FUSE3FUSE2FUSE1C74C73C68C67C802200UF/16VC792200UF/16VC76C75C78C77C72C71C70C69DBR2KBPC3504DBR1KBPC3504D23-D26IN4004RTHERM220R/1WTHERM1D33-D36IN4
17、004TXIECS1FUSERELAY3C8147UF/35VC8247UF/35VRA POWER SUPPLY3LMBCORRECT CONNECTIONWIRING DETAILS FORSEE TRANSFORMERCHASSISCON 5:1STAR GNDRLY3 (A)RLY3 (B)BLUEYELLOWBLACKBROWNORANGESWITCHMOUNTED MAINSFRONT PANEL24V DCFANLT+1LT-1HT+LT+LT+2LT-2HT-BLUEGREENORANGEYELLOWREDBROWNGREYGREEN/YELLOWREDREDBLACKENL0
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- CAudio RA2000 pwr sch 维修 电路 原理图
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