Crest-FCV440-pwr-sch维修电路原理图.pdf
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1、FCV 220 & FCV 440 Series power amplifiersSchematic set1. Preamp driver2. Preamp driver OTA3. Power supply interconnects4. Power supply and fan driver5. Output stage6. NexSys preamp driver7. NexSys power supply8. NexSys output stageRadioFans.CN 收音机爱 好者资料库8877665544332211DDCCBBAANOTE 1:NOTE 2:NOTE 3:R
2、3,R4R21,R24,R25,R28R29,R30FCV440 = 13.75K/1%FCV220 = 15.1K/1%FCV440 = 27.18K/1%FCV220 = 19.6K/1%FCV440 = 680/10WFCV220 = 520/10WR7, R8 CHANGED FROM 4.7K TO 2.7K ON 4/8/9221B1241PREAMP/DRIVER FCV220/FCV440CREST AUDIO INC.150 Florence AvenueB11Thursday, May 18, 2000Hawthorne, NJ 07506TitleSizeDocument
3、 NumberRevDate:SheetofCH A OUTCH B OUTCH A MODULECH B MODULESUPPLY GNDSUPPLY GNDR17100C20330pFC19330pFR15100+-IC2BSTK3152151413121011+-IC2ASTK3152128734965C23150pFR9470+-IC1ANE553232184R10470+-IC1BNE5532567C130.47/250VR5100KR190.9K/1%R14100K/1W/2%R13100K/1W/2%R16100R2610K/1%R2710K/1%Z31N5359R6100KR2
4、4NOTE 2R21NOTE 2:R28NOTE 2R25NOTE 2R126.65K/1%R116.65K/1%BAR1INPUT BARRIER123456C70.1/100VC80.1/100VC120.47/250VC180.1/100VC170.1/100VR3NOTE 1R4NOTE 1J4CH B OCTAL12345678J3CH A OCTAL12345678J7CH B MODULE12345678J8CH A MODULE12345678RLY1T90N5D12-12RLY2T90N5D12-12R29NOTE 3R30NOTE 3J9RELAY12SW1MSSA2350
5、C330pFD11N4148C10.1/100VC20.1/100VC430pFC630pFC15100/100VC16100/100VZ11N5930R194.7/1WR204.7/1WD21N4148D31N4148D41N4148D51N4148D71N4148D81N4148R72.7K/2WC530pFR82.7K/2WD61N4148Z21N5930R2310K/1%R2210K/1%R290.9K/1%C1015pFC915pFC22330pFVR15KC21330pFVR25KC24150pFR18100RadioFans.CN 收音机爱 好者资料库88776655443322
6、11DDCCBBAANOTE 1:NOTE 2:ANALOG GNDANALOG GNDATTENUATE CH BATTENUATE CH A+15 VDATA CH ADATA CH B FCV440 = 13.75K/1% FCV220 = 15.1K/1% FCV440 = 27.18K/1% FCV220 = 19.6K/1%DIGITAL GNDDIGITAL GND+24V-24VCH B ATTNCH A ATTN21C138300OTA PREAMP/DRIVER FOR FCV SERIESCREST AUDIO INC.100 Eisenhower DriveC11Thu
7、rsday, May 18, 2000Paramus, NJ 07652TitleSizeDocument NumberRevDate:Sheetof+24V+24V+24V+24V+24V+24V-24V-24V-24V-24V-24V-24VCH A OUTCH B OUTCH A MODULECH B MODULESUPPLY GNDSUPPLY GNDR17100R371.5KR474.7KC20330pFR464.7KR3910KC19330pFR4010KR15100R4247KJ626-48-11161234567891011+-IC4BSTK3152151413121011R4
8、347KJP?26-48-1036123+-IC4ASTK3152128734965R456.8K+-IC1AOPA260432184J9HEADER 3123C23150pFR386.8K+-IC1BOPA2604567R9470R10470C131/63VR35750R36750R5220KR190.9K/1%R14100K/1W/2%R13100K/1W/2%C264.7/35VR16100C254.7/35VR2610K/1%R32100KR2710K/1%R33100KR6220KR24NOTE 2R21NOTE 2:R28NOTE 2R25NOTE 2R126.65K/1%C292
9、20pFR116.65K/1%C28220pFBAR1INPUT BARRIER123456C70.1/100VC80.1/100VC121/63VC180.1/100VC170.1/100VR3NOTE 1R4NOTE 1J4CH B OCTAL12345678J3CH A OCTAL12345678J7CH B MODULE12345678J8CH A MODULE12345678RLY1T90N5D12-24RLY2T90N5D12-24OC14N25OC24N25C1410/16V/BPC1110/16V/BPSW1MSSA2350C330pFD11N4148C10.1/100VC20
10、.1/100VC430pFC630pFC15100/100VC16100/100VC30CPR194.7/1WC31CPR204.7/1WD21N4148D31N4148J2CH BD41N4148J1CH AD51N4148VR15KD71N4148VR25KR7200/1WJP2D81N4148Z11N5353IC3NE5517AN12345678910111213141516JP1R8200/1WC530pFZ21N5353D61N4148R2310K/1%R2210K/1%R290.9K/1%C1015pF+-IC2AOPA260432184C915pF+-IC2BOPA2604567
11、R443.3KC22330pFR?27R411.5KC21330pFR?27C24150pFR18100R343.3K8877665544332211DDCCBBAAOUTPUT AOUTPUT BPREAMPPOWER SUPPLY26A181601CREST AUDIO100 EISENHOWER DRIVEPARAMUS, NJ 07652A00Thursday, May 18, 2000SizeDocument NumberRevDate:SheetofJ526-03-40711234567891011J626-03-41111234567891011J926-03-402012J42
12、6-03-4030123J2A1234567J31234567J21234567J2B12345678877665544332211DDCCBBAARELAY ARELAY BCH. ACH. BCH. ACH. BCH. ACH. BGROUNDGROUNDGROUNDTEMP SENSOR POWERTEMP SENSOR OUTPUTTEMP SENSOR OUTPUTTEMP SENSOR POWERA CLIP-A CH. PROTECT+B CLIP-B CH. PROTECT+A CLIP-B CLIP-SPKR LEVEL B (DC PROT)SPKR LEVEL A (DC
13、 PROT)FAN DRIVE V+GROUNDGROUNDR23,R24C2,C3SW1T11.8K/5W3.9K/5W15,000UF/50V4.00 AMP6.00 AMPCREST #22B1297CREST #22B1295REFFCV220FCV440(SEE CHART)10,000UF/75V21C123001FCV220/FCV440 POWER SUPPLY/FAN DRIVER PCB CREST AUDIO INC. 150 Florence Ave.C11Thursday, May 18, 2000Hawthorne, NJ 07506TitleSizeDocumen
14、t NumberRevDate:SheetofGNDGNDTO C2+TO C2-/C3+TO C2-/C3+TO C3-Q5MPSA13T1SEE CHART+-IC1BLM614657+-IC1ALM614231413R121KR111KC111000/25VR5499/1%R6499/1%J226-48-105512345J326-48-105512345R301K/1%D51N4148P1PLUG AC MALER3323.7K/1%R311K/1%R3223.7K/1%R42.2KR81K/1%R1010KR71K/1%R910KQ22N5551BR1BR354WR25100/2WQ
15、12N5551R362.2KIC1ELM6148139R352.2KR3747/1WZ21N960R391.5KZ11N960R3847/1WR401.5KZ31N5355AR421.5KD11N4148R411.5KQ42N5401Q32N5401J122-02-208512345678J426-48-102512D41N4148R212.2KD31N4148R222.2K+-IC1CLM614111210+-IC1DLM614151416D21N4148TR2MAC97D71N4004D81N4148IC2LM317123R24SEE CHARTC15470/25VR26442/1%C14
16、470/25VR342.2KTR1MAC97R23SEE CHARTJ526-48-102512R441KR1610KR431KR1510KC18100/25VSW1SEE CHARTC19100/25VR1822KR1722KR210KR110KZ51N5920Z41N5920F13A/MINIC10.15/400VBR2RS202C1710/50VR13330KR14330KR27100KR281KR291KD61N41488877665544332211DDCCBBAANOTE 1FCV220 = OMIT Q20,Q21FCV220 = OMIT R42,43,44,45TEMP SE
17、NSOR POWERTEMP SENSOR OUTPUTCLIP (-)SPEAKER RAILSPEAKER RAILSPEAKER RAILTEMP SENSOR GROUND+ DRIVE+ DRIVE- DRIVE- DRIVE+ 65 VNL - 65 VNL21B1294 (REF. PCB # 26B1100)FCV220/FCV440 OUTPUT STAGECREST AUDIO INC.150 Florence Ave.B11Thursday, May 18, 2000Hawthorne, NJ 07506TitleSizeDocument NumberRevDate:Sh
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