Crest-4801-pwr-sch维修电路原理图.pdf

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1、8 8 7 7 6 6 5 5 3 3 2 2 1 1 DD CC BB AA BALANCED INPUT/GAIN SERVO/HIGH PASSCURRENT LIMITER SIGNAL DETECTORCLIP DETECTORAMPLIFIER FRONT END/IC POWER SUPPLY 6.8K 2W ON MODELS 6001, 4801 5.6K 2W ON MODELS CC301/300 TURN ON DELAY ATTENUATION/MUTE ATTENUATOR DRIVER NOTE 1: 8.2K 2W ON MODELS 8001, 7001, C

2、V601 NOTE 2: 27K 2W ON MODELS 8001, 7001, CV601 20K 2W ON MODELS 6001, 4801, CC301 560 10W ON MODELS CC301 NOTE 4: R82, R83, D20, VR1 ARE USED ON MODEL MA5850 ONLY SIGNAL CLIP CONTROL SPEAKER SPEAKER LIMIT MUTE 4.3K 2W ON MODEL 4601 16K 2W ON MODEL 4601 1.1K 10W ON MODEL 4601 3.3K 2W ON MODELS CV301

3、, CC151, 3301 15K 2W ON MODELS CV301, CC151, 3301 1K 10W ON MODELS CV301, CC151, 3301 560 10W ON MODELS CC301 620 10W ON MODEL 6001 560 10W ON MODELS 4801, MA5850 680 10W ON MODEL 7001 NOTE 4: R82, R83, D20, VR1 ARE USED ON MODEL MA5850 ONLY 1.1K 10W ON MODEL 4601 NOTE 3: 750 10W ON MODELS 8001, CV6

4、01 1K 10W ON MODELS CV301, 3301 360 10W ON MODEL CC151 PRIOR TO 6-2-92 R65, R66 WERE 1K/10W ON MODEL CC151 NOTE 5: REV NOTES 7/15/93 (1) DELETE R12 21C1124-0202 PRO-LINE PREAMP/FRONT END CREST AUDIO INC. 50 Florence Ave. Hawthorne, NJ 07506 C 10Friday May 19 2000 itle SizeDocument NumberRev DateShee

5、tof VCC+ VCC+ VCC+ VCC+ VCC+ VCC+ VCC+ VCC+ VCC VCC-VCC- VCC- VCC- VCC- VCC- VCC- VCC- VCC- C10 0.001/50V R50 10K R33 22K R69 NOTE 1 C1 100/35V R70 NOTE 1 R76 NOTE 2 R27 2.2K R77 NOTE 2 Q3 MPSA75 Z11N5353 Z21N5353 Z41N5938 C5 470pF R9 1K Z31N5938 D14 1N4148 R7 10K D12 1N4148 R10 100K D15 1N4148 R4 2

6、2K Q4 2N5551 D3 1N4148 C14470uF C2 47/35V C16470uF C18 0.47/250V R8 10K C21 0.1uF C17470uF C15470uF C7 0.1/50V Q15 2N5401 Q8 2N5551 IC4 NE5517AN 2 3 4 5 6 7 89 10 11 12 13 14 15 16 Q12 2N5551 + - IC1A NE5532AN 3 2 1 84 Q6 N5551 + - IC1B NE5532AN 5 6 7 Q10 2N5551 R31 4.7K R73 0 Q14 2N5551 R57 100 Q13

7、 2N5401 Q9 2N5401 Q7 2N5401 Q11 2N5401 R37 47K D18 SF14 R36 3.3K R78 2.7K R32 1.5K/1% R82 NOTE 4 R79 11K/1%/1W R35 750/1% R80 549/1% R34 499/1% D20 NOTE 4 D16 1N4148 + - IC3A LM339N 312 4 5 2 D17 1N4148 R58 100 D19 SF14 C22 30pF R41 1K/0.1% R43 1K/0.1% R47 100K/0.1% R48 100K/0.1% R44 1K/0.1% R42 1K/

8、0.1% + - IC2B RC4559 5 6 7 R45100K/0.1% D21 1N4148 R11 22K D2 1N4148 R49 2.2K R28 10K R81 10K R29 2.2K D13 1N4148 R24 680K R30 47K R25 680K C13 10/35V R16 150K SIP1D 10K/0.2% C4 30pF R2 330K R1 15K R3 10K R5 4.7K R6 10K R14 10K/1% R38 10K R65 NOTE 3 R15 10K/1% R66 NOTE 3 + - IC2A RC4559 3 2 1 84 R71

9、 100 R72 100 R74 47 R75 47 R51 1M R52 100K R56 2.2K Q5 2N5401 R59 511/1% R53 100K D1 1N4148 Q1 2N5401 R60 511/1% R54 1M R55 2.2K Q2 2N5551 R63 8.25K/1% R62 68.1/1% R64 8.25K/1% R67 68.1/1% R61 68.1/1% + - IC3B LM339N 6 7 1 + - IC3C LM339N 8 9 14 SIP1B 10K/0.2% + - IC3D LM339N 10 11 13 C20 0.1uF SIP1

10、A 10K/0.2% SIP1C 10K/0.2% R174.7K D4 1N4148 C9 2.2/5%/100V D6 1N4148 C630pF D5 1N4148 D7 1N4148 R13 220K R46100K/0.1% D8 1N4148 C11 1/50V D9 1N4148 C121/50V R18 2.2K C30.1/50V R19 10K C8 2.2/5%/100V R20 549/1% R68 68.1/1% R83 NOTE 4 VR1 NOTE 4 R2210K R40 SELECTED R2310K R39 SELECTED J2-M 26-48-1135

11、1 2 3 4 5 6 7 8 9 10 11 12 13 D111N4148 J3-M 26-48-1155 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 D101N4148 R21 100K J1-F 09-52-3172 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 C19 0.47/250V R26 1K RadioFans.CN 收音机爱 好者资料库 8 8 7 7 6 6 5 5 4 4 3 3 2 2 DD CC BB AA TEMP SENSOR + TEMP SENSOR OUT TEMP SENSOR GND

12、RELAY GROUND RELAY GROUND RELAY 2 4 RELAY 1 3 GROUND SPKR RAIL CH B MUTE CH B LIMIT CH B CONTROL V CH B CLIP CH B SIGNAL CH B SIGNAL CH A CLIP CH A LIMIT CH A CONTROL V CH A SPKR RAIL CH A MUTE CH A TEMP SENSOR + TEMP SENSOR OUT GROUND GROUND GROUND TRANSFORMER TEMP TEMP SENSOR GND NOTE 2 NOTE 2 NOT

13、E 1 R3 R4 NOT INSTALLED RESERVED FOR FUTURE USE NOTE 3 R52 USED FOR FIXED SIGNAL PRESENSE THRESHOLD IGM A TEMP A CLIP A PROT A TEMP B CLIP B PROT B DATA B DATA A A/CLIP B/CLIP DATA & POWER CONN 44 V OUT 24 V IN TRANSFORMER TEMP GND IGM B 02 10 94 CHANGE R101 R109 FROM 10K TO 4 7K CHANGE R103 R111 FR

14、OM 2 2K TO 2 7K CHANGE R107 R115 FROM 3 3K TO 4 7K CHANGE R108 R116 FROM 2 2K TO 1K CHANGE Z101 Z102 FROM MLL4728 TO MLL4733 21D1777 MA5850 DISPLAY WITH NEXSYS CREST AUDIO 00 EISENHOWER DRIVE PARAMUS, NJ 07652 D 00Fr day, May 19, 2000 it e SizeDocument NumberRev Date:Sheetof /D T AUX GND B/DATA A/ 1

15、6V B/ 16V A/-16V B/-16V 2 V 3 V. AC 3 V. AC Q2 PMBT5551 R19 5.1K + C1C LM61 WM 11 12 10 + IC1D LM61 WM 15 1 16 IC1E LM61 WM 8 13 9 + IC1B LM61 WM 6 5 7 + IC1A LM61 WM 2 3 1 13 C10 2.2/100V C11 2 2/100V LED 6 TEMP/DC M5 26- 8-1155 1 2 3 5 6 7 8 9 10 11 12 13 1 15 R2 MAC97A + IC2A LM393M 3 2 1 8 M6 26

16、- 8-1155 1 2 3 5 6 7 8 9 10 11 12 13 1 15 R1 MAC97A + IC2B LM393M 5 6 7 LED 7 ACTIVE R 2 10K D12 1N 1 8 R 3 10K R26 .7K R 99/1% D3 1N 1 8 R 5 5.3/1% D5 1N 1 8 R 6 7K D7 1N 1 8 R 7 10K/1W D9 1N 1 8 R 8 7K D2 1N 1 8 R 9 10K/1W D 1N 1 8 R50 2.2K D8 1N 1 8 R52 NOTE 3 D11 1N 1 8 R53 2.2K D10 1N 1 8 D13 1

17、N 1 8 Z3 MLL 728 D15 1N 1 8 Z MLL 728 D17 1N 1 8 D16 1N 1 8 D1 1N 1 8 Q5 MPSA75 J5 26- 8-1075 1 2 3 5 6 7 R30 10K R28 390 R38 100K R115 7K R39100K R116 1K C1 1/50V Z102 MLL 733 C2 1/50V D105 1N 1 8 R36 99/1% C105 0.1/50V C 70/6 3V C10 0.1/50V R18 2.7K D110 1N 00 R15 2.7K D109 1N 00 R17 2.7K D108 1N

18、00 R16 2.7K D107 1N 00 LED 8 ACTIVE + IC101B LM339M 6 7 1 R11 5K/5W R121 10K R12 5K/5W R117 2.2K Z1 MLL 7 2 R120 100K R126 10K Z2 MLL 7 2 LED 5 TEMP/DC R125 10K C3 70/6.3V R109 .7K Q PMB 555 + IC102B LM358AM 5 6 7 LED 1 CLIP + IC101D LM339 10 11 13 R29 10K R110 .7K R27 390 R111 2.7K R25 7K C102 1/50

19、V Q6 MPSA75 R113 100 D18 1N 1 8 C103 0.1/50V R2 750 1% Z101 MLL 733 R23 750/1% R108 1K D19 1N 1 8 R107 .7K R22 1K D102 1N 1 8 R21 1K R103 2.7K LED 2 CLIP R102 .7K C8 100/25V + IC102A LM358AM 3 2 1 8 R13 10K C101 1/50V C7 100/25V R105 100 R1 10K R101 7K + C101C LM339M 8 9 1 VR1 5KB R12 10K R123 10K R

20、20 5.1K R118 100K + IC101A LM339M 312 5 2 C5 0.1/50V R9 2.7K R119 10K R8 100K R122 220 R6 2.7K R7 100K Q1 PMBT5551 D6 1N 1 8 BR1 RS202 F1 3A/MINI LED 3 SIGNAL C6 70/50V R5 2.7K R35 99/1% R3 10K VR3 250 R 10K R10 2.7K R33 .7K R37 2.2K R3 .7K R31 390K R32 390K VR2 5KB M7 26- 8-1035 1 2 3 M8 26- 8-1035

21、 1 2 3 Q3 PMBT5551 LED S GNAL VEEA VDDA VEEB VDDB RadioFans.CN 收音机爱 好者资料库 8 8 7 7 6 6 5 5 4 4 3 3 2 2 DD CC BB AA TEMP SENSOR + TEMP SENSOR OUT TEMP SENSOR GND RELAY GROUND RELAY GROUND RELAY 2 4 RELAY 1 3 GROUND SPKR RAIL CH B MUTE CH B LIMIT CH B CONTROL V CH B CLIP CH B SIGNAL CH B SIGNAL CH A CL

22、IP CH A LIMIT CH A CONTROL V CH A SPKR RAIL CH A MUTE CH A TEMP SENSOR + TEMP SENSOR OUT GROUND GROUND GROUND TRANSFORMER TEMP TEMP SENSOR GND IGM A TEMP A CLIP A PROT A TEMP B CLIP B PROT B DATA B DATA A A/CLIP B/CLIP DATA & POWER CONN (5 1V) (5 1V) 44 V OUT TRANSFORMER TEMP GND IGM B 27 V IN 12 14

23、 93 CHANGE R101 R109 FROM 10K TO 4 7K CHANGE R103 R111 FROM 2 2K TO 2 7K CHANGE R107 R115 FROM 3 3K TO 4 7K CHANGE R108 R116 FROM 2 2K TO 1K CHANGE Z101 Z102 FROM 1N5913 TO 1N5918 NOTE 1 R23 R24 WILL CHANGE TO 1K/1% WITH UL APPROVAL 21D1977-xx CREST AUD O 100 EISENHOWER DRIVE PARAMUS, NJ 07652 D 00W

24、ednesday, May 17, 2000 SizeDocument NumberRev Date:Sheetof A/DATA AUX GND B/DATA A/ 16V B/ 16V A/-16V B/-16V 2 V 3 V. AC 3 V. AC R15 2.7K J3 26- 8-1075 1 2 3 5 6 7 R17 2.7K M5 26- 8-1155 1 2 3 5 6 7 8 9 10 11 12 13 1 15 R16 2 7K LED 8 ACTIVE Z1 1N5927A R11 5K/5W Z2 1N5927A R12 5K/5W + C1C LM61 11 12

25、 10 LED 5 TEMP/DC + C1D LM61 15 1 16 C3 70/6.3V C1E LM61 8 13 9 + IC1B LM61 6 5 7 Q 2N5551 + IC1A LM61 2 3 1 13 LED 1 CLIP R29 10K + IC102A LM358A 3 2 1 8 R27 390 + IC101C LM339 8 9 1 R25 .7K + IC101A LM339 312 5 2 Q6 MPSA75 + IC101B LM339 6 7 1 D18 1N 1 8 R2 750/1% R23 750/1% D19 1N 1 8 R22 1K C102

26、 1/50V R21 1K C101 1/50V C5 0.1 50V LED 2 CLIP C8 100/25V Z102 1N5918A R13 10K BR1 RS202 C7 100/25V D105 1N 1 8 R1 10K R116 1K VR1 5KB R115 .7K R20 5.1K + IC102B LM358A 5 6 7 R9 2.7K R8 100K R6 2.7K R7 100K Q1 2N5551 D6 1N 1 8 F1 3A/MINI LED 3 SIGNAL C6 70/50V R5 2.7K R35 99/1% R3 10K R 10K R10 2.7K

27、 R33 .7K R37 2.2K R3 .7K R31 390K R32 390K M7 26- 8-1035 1 2 3 M8 26- 8-1035 1 2 3 Q3 2N5551 LED SIGNAL Q2 2N5551 R19 5.1K C105 0.1/50V C10 0.1/50V LED 6 TEMP/DC D110 1N 001 TR2 MAC97A D109 1N 001 TR1 MAC97A D108 1N 001 LED 7 ACTIVE D107 1N 001 D12 1N 1 8 R121 10K R26 .7K R117 2.2K D3 1N 1 8 R120 10

28、0K D5 1N 1 8 R126 10K D7 1N 1 8 R125 10K D9 1N 1 8 R109 .7K D2 1N 1 8 + IC101D LM339 10 11 13 D 1N 1 8 R110 .7K D8 1N 1 8 R111 2.7K D11 1N 1 8 R113 100 D10 1N 1 8 C103 0.1/50V D13 1N 1 8 Z101 1N5918A D15 1N 1 8 R108 1K D17 1N 1 8 R107 7K D16 1N 1 8 D102 1N 1 8 D1 1N 1 8 R103 2.7K Q5 MPSA75 R102 .7K

29、R30 10K R105 100 R28 390 R101 .7K R38 100K R12 10K R39100K R123 10K C1 1/50V R118 100K C2 1/50V R119 10K R36 99/1% R122 220 C 70 6.3V VR2 5KB R18 2 7K M6 26- 8 1155 1 2 3 5 6 7 8 9 10 11 12 13 1 15 VEEA VDDA VEEB VDDB 8 8 7 7 6 6 5 5 4 4 3 3 2 2 1 1 DD CC BB AA BLACK BLACK RED GREEN BLACK 18 GA BLAC

30、K 18 GA BLACK BLACK RED GREEN ORANGE/WHITE BLACK SHIELD WHITE SHIELD BLACK SHIELD BLACK SHIELD BLACK SHIELD WHITE SHIELD WHITE SHIELD WHITE SHIELD BLUE/WHITE BLUE BLUE/WHITE BLUE YELLOW YELLOW/WHITE BLACK/WHITE BLACK/WHITE BLUE SHIELDED BLUE SHIELDED BLUE SHIELDED YELLOW SHIELDED BLUE SHIELDED BLUE

31、SHIELDED YELLOW SHIELDED BLUE SHIELDED BLUE SHIELDED YELLOW SHIELDED YELLOW SHIELDED YELLOW SHIELDED YELLOW SHIELDED YELLOW SHIELDED BLUE SHIELDED PURPLE/WHITE WHITE (X2) WHITE PURPLE/WHITE YELLOW SHIELDED YELLOW (X2) YELLOW/WHITE (X2) YELLOW/WHITE GREEN/BLACK RED/BLACK GREEN/BLACK RED/BLACK WHITE/R

32、ED (X2) WHITE/RED (X2) WHITE/RED ORANGE/WHITE WHITE WHITE/RED PURPLE WHITE/BLACK ORANGE GREY BROWN RED/WHITE BLACK/RED RED/WHITE GREY/BLACK RED/WHITE GREY/WHITE BROWN/WHITE GREEN/WHITE BLACK/RED BLACK/WHITE RED/WHITE GREY/WHITE BROWN/WHITE GREEN/WHITE ORANGE WHITE/BLACK (X2) GREY BROWN WHITE/BLACK P

33、OWER SUPPLY GROUND LUG PURPLE PURPLE (X2) YELLOW WHITE/GREY BLACK/WHITE BLACK 18 GA BLACK 18 GA BLACK 18 GA BLACK 18 GA BLACK 18 GA BLACK 18 GA RED BLACK 1 1 REV. 01 EFFECTIVE S/N# 9004Q20 CHANGE RELAY BOARD PURPLE/WHITE BLACK PURPLE/WHITE RED GREEN RED/WHITE GREEN/WHITE GREEN/WHITE RED/WHITE GREEN

34、RED REV. 02 - MODIFY HARNESS TO ACCEPT CREST COMPUTER CONTROL SYSTEM 21B1010 02 4801 HARNESS SCHEMATIC CREST AUDIO INC. 150 Florence Ave. B 11Wednesday, May 17, 2000 Hawthorne, NJ 07506 Title SizeDocument NumberRev Date:Sheetof 25 LUG .25 LUG .25 LUG TO FAN TO FAN J2ARELAY 1 2 3 4 5 6 7 8 9 10 M5 TE

35、MP CH.A 1 2 3 M5 TEMP CH.B 1 2 3 J1 RELAY 1 2 3 4 J3 CH.A PREAMP 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 J3 CH.B PREAMP 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 J2 CH.B 1 2 3 4 5 6 7 8 9 10 11 12 13 M8 DISPLAY 1 2 3 M7 DISPLAY 1 2 3 J2 CH.A 1 2 3 4 5 6 7 8 9 10 11 12 13 J5 INPUT 1 2 3 4 5 6 7 8 9 10 11 12 13

36、 J12 03-09-1022 1 2 J13 03-09-1042 1 2 3 4 M5DISPLAY 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 M6DISPLAY 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 J2BRELAY 1 2 8 8 7 7 6 6 5 5 3 3 2 2 1 1 DD CC BB AA NOTE: Q30, Q31, NOT USED ON MODELS 4801, CC151 R98, R99 ARE 39K ON MODEL CV601 21CO951 OUTPUT 4801/6001/7001/CC1

37、51/CC301/CV601 CREST AUDIO INC. 150 Florence Ave. C 11Wednesday, May 17, 2000 Hawthorne NJ 07506 Title SizeDocument NumberRev DateSheetof WHT BLK RED RED/BLK GRN/BLK GRN R116 0.33/5W R118 0.33/5W Q28 2SC3281 Q30 2SC3281 Q32 2SC3281 Q34 2SC3281 Q33 2SA1302 Q27 2SA1302 Q29 2SA1302 R125 2.2/1W R127 2.2

38、/1W R129 2.2/1W R131 2.2/1W R111 2.2/1W Q15 2SC2336BQ R113 2.2/1W C29 0.1/100V R115 2.2/1W C30 100/16V R117 2.2/1W R143 51/0.5W C47 220/80V R142 51/0.5W C40 1.5/250V Q22 2SC2336BQ C48 220/80V R9713K C44 22/160V C49 2.2/100V D30 SF14 D34 FR204 D28 SF14 Q16 2SA1006BQ D39 1N4004 D29 SF14 C39 330pF D41

39、SF14 C38 330pF R9613K C35 47/16V R146 10/1W C34 47/16V R147 10/1W D40 SF14 Q17 TIP117 D45 MR2406R Q24 2SC3281 D44 MR2406R D43 SF14 Q19 2SC2336BQ D42 SF14 Q20 2SA1006BQ R149 10/1W R140 390/5W D33 FR204 R141 390/5W R137 100/0.5W C33 0.0047/100V R135 390 C32 0.0047/100V R120 20K/1W R132 3.9K R159 2.2K/

40、0.5W R133 3.9K R153 0.2/5W C42 2200pF R152 0.2/5W R100 10/1W D32 FR204 R91 220 R148 10/1W R101 200/2W R136 100/0.5W R104 51/2W R119 20K/1W J1 GOLD METHODE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 R134 390 Z9 1N5927B R158 2.2K/0.5W Z8 1N5927B R99 24K D38 1N4004 R107 30/2W R98 24K R106 30/2W R93 51.1

41、/1W/1% R138 10/1W R92 51.1/1W/1% Q21 2SA1006BQ J7 03-09-1032 1 2 3 Q31 2SA1302 Q39 2SA1302 Q40 2SC3281 C50 2.2/100V C41 1.5/250V R139 10/1W R163 10/1W C43 22/160V C45 0.047/250V Q36 2SC3281 Q35 2SA1302 C37 150pF R162 1K R161 1K C36 150pF R94 4.7/1W R89 4.7/1W R90 510 R14 22 C31 330pF Q23 2SA1302 R16

42、4 10/1W D36 1N4148 D37 1N4148 D35 FR204 R102 150/1W R103 150/1W C28 1200pF VR2 PTC15LB/250 C46 0.047/250V R165 2.2K IC5 LM35DP 1 32 R145 51/0.5W Q38 2SC3281 Q42 2SC3281 Q37 2SA1302 Q41 2SA1302 R151 0.2/5W R155 0.2/5W R154 0.2/5W R150 0.2/5W R124 0.33/5W R126 0.33/5W R128 0.33/5W R130 0.33/5W R112 0.

43、33/5W R114 0.33/5W 8 8 7 7 6 6 5 5 4 4 3 3 2 2 1 1 DD CC BB AA 120 VOLT VERSION GRND REV. 01 EFFECTIVE S/N# 9004Q20 21B1008 01 4801 POWER SUPPLY/FAN DRIVER CREST AUDIO INC. 150 Florence Avenue B 11Wednesday, May 17, 2000 Hawthorne, NJ 07506 Title SizeDocument NumberRev Date:Sheetof TO DSP -52 CH A -

44、52 CH B +52 CH B +52 CH A +104 CH A +104 CH B -104 CH A -104 CH B 32 VAC 32 VAC OUT A IN A IN B OUT B J2 26-48-1125 1 2 3 4 5 6 7 8 9 10 11 12 R7 1K R11 1K/1% R9 39.2K/1% C1 0.047/630V C2 0 047/630V J1 26-48-1045 1 2 3 4 Q1 MPSA13 R4 100K D2 1N4148 + - IC2A LM393N 3 2 1 84 R8 1K R6 2.2K + - IC2B LM3

45、93N 5 6 7 IC1 LM317T 1 23 D3 1N4148 R12 1K/1% D1 1N4148 R1 390/2W IC3 LM317T 1 23 D5 1N4004 D4 1N4004 R10 39.2K/1% R17 221/1% R2 221/1% R16 4.7K R3 2.2K C8 0.15/400V C9 0.15/400V C12 10/50V R20 10/10W R21 10/10W R23 1/10W R22 1/10W R18 33/2W R19 33/2W D6 1N4004 D7 1N4004 R5 2.2K RL1 FRL-24 RL2 FRL-2

46、4 C3 17,000/55V C4 17,000/55V C5 17,000/55V C6 17,000/55V P1 PLUG AC MALE T1 BR1 MP14020W BR2 MP14020W R14 680/10W R15 680/10W SW118 AMP L1 3uH L2 3uH Z1 1N5363A 8 8 7 7 6 6 5 5 3 3 2 2 1 1 DD CC BB AA TURN ON DELAY/MUTE BALANCED INPUT/GAIN SERVO/HIGH PASSCURRENT LIMITER SIGNAL DETECTORLIMIT DETECTO

47、R CLIP DETECTORAMPLIFIER FRONT END/IC POWER SUPPLY NOTE 1: 8.2K 2W ON MODELS 8001, 7001, CV601/600 NOTE 2: 27K 2W ON MODELS 8001, 7001, CC601/600 3.3K 2W ON MODELS CV301/300, CC151/150 15K 2W ON MODELS CV301/300, CC151/150 20K 2W ON MODELS 6001, 4801, CC301/300 6.8K 2W ON MODELS 6001, 4801 5.6K 2W O

48、N MODELS CC301/300 NOTE 3: 1K 10W ON MODELS CC151/150, CV301/300 820 10W ON ALL OTHER MODELS 2123001 PREAMP/FRONT END CREST AUDIO 50 Florence Ave. Hawthorne, NJ 07506 C 10Wednesday, May 17, 2000 tle SizeDocument NumberRev DateSheetof VCC+ VCC+ VCC+ VCC+ VCC+ VCC+ VCC+ VCC+ VCC+ VCC+ VCC- VCC- VCC- V

49、CC- VCC- VCC- VCC- VCC- VCC- C11 0.001uF R69 NOTE 1 R21 10K R22 180K R81 NOTE 1 R87 NOTE 2 R24 1K + - IC3 A RC4559N 3 2 1 84 R88 NOTE 2 + - IC2 B RC4559N 5 6 7 + - IC4 A LM393N 3 2 1 84 + - IC4 B LM393N 5 6 7 Z11N5353 Z21N5353 + - IC3 B RC4559N 5 6 7 Z61N5938 D27 1N4148 Z41N5938 D7 1N4148 D26 1N4148 R18 4.7K Q15 N5551 C17470uF C14470uF C22 0.47uF 250V C23 0.1uF C15470uF R90 4.7K C18470uF C6 0.1uF Q14 2N5401 Q7 2N5551 Q8