RenkusHeinz-CC300-pwr-sch 电路图 维修手册.pdf

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1、8 8 7 7 6 6 5 5 4 4 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/CC151/CC301/CV601 CREST AUDIO INC. 150 Florence Ave. C 11Wednesday, May 17, 2000 Hawthorne, NJ 07506 Title SizeDocument NumberRev Date:Sheetof WHT

2、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 2.2/1WR127 2.2/1W 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 R14

3、2 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 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 2SC2336B

4、Q 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/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 G

5、OLD 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 51.1/1W/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 R16

6、3 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 R164 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 51/0.5

7、W 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 0.33/5W R114 0.33/5W 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 1 1 DD CC BB AA TEMP SENSOR + TEMP SENSOR OUT TEMP SENSOR GND. RELAY GRO

8、UND 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 44 V. OUT 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 TRANSFORMER TEMP

9、 TEMP SENSOR GND 27 V. IN * *NOTE ON 7001 R23, R24 WILL CHANGE TO 1K/1% WITH UL APPROVAL 21C0948 7001/6001/4801 DISPLAY CREST AUDIO INC. 150 Florence Ave. C 10Wednesday, May 17, 2000 Hawthorne, NJ 07506 Title SizeDocument NumberRev Date:Sheetof 34 V. AC 34 V. AC R14 4.7K R21 1K R22 1K R25 4.7K R26 4

10、.7K R37 2.2K D3 1N4148 D5 1N4148 D7 1N4148 D9 1N4148 D2 1N4148 D4 1N4148 D6 1N4148 D8 1N4148 D11 1N4148 D10 1N4148 D13 1N4148 D15 1N4148 D17 1N4148 D16 1N4148 D14 1N4148 LED 1 CLIP C5 0.1/100V Q5 MPSA75 D18 1N4148 D19 1N4148 IC1 E LM614 8 13 9 VR1 5KB VR2 5KB + - IC1A LM614 2 3 1 413 R29 10K + - IC1

11、D LM614 15 14 16 R30 10K + -IC1C LM614 11 12 10 R28 390 R27 390 R38 100K R39100K R23 750/1% R24 750/1% C1 1/50V C2 1/50V R35 499/1% R36 499/1% BR1 RS202 F1 3A/MINI C6 470/50V C3 470/6.3V C4 470/6.3V R5 2.7K R9 2.7K R10 2.7K R6 2.7K R18 2.7K R15 2.7K R17 2.7K R34 4.7K R33 4.7K R31 390K + - IC1 B LM61

12、4 6 5 7 M7 26-48-1035 1 2 3 M8 26-48-1035 1 2 3 R20 7.5K R19 7.5K M6 26-48-1155 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 M5 26-48-1155 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 R16 2.7K LED 8 ACTIVE R32 390K R11 5K/5W R12 5K/5W Z1 1N5927 Z2 1N5927 LED 6 TEMP/DC Q6 MPSA75 Q2 2N5551 LED 2 CLIP LED 4 SIGNAL LED 3

13、 SIGNAL Q1 2N5551 Q4 2N5551 Q3 2N5551 TR2 MAC97A TR1 MAC97A LED 5 TEMP/DC LED 7 ACTIVE D12 1N4148 R3 10K R4 10K R7 100K R8 100K R13 4.7K 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 1 1 DD CC BB AA 120 VOLT VERSION 12GA JUMPER 12GA JUMPER WIRE HARNESS TO SURGE PCB BLACK RED 21B0927-01.REV 01

14、6001/7001 POWER SUPPLY/RELAY PCB CREST AUDIO INC. 150 Florence Ave. B 11Wednesday, May 17, 2000 Hawthorne, NJ 07506 Title SizeDocument NumberRev Date:Sheetof CH A OUT CH B OUT CH A IN CH B IN 34V AC 34V AC +122 CH B +122 CH A +61 CH A +61 CH B -61 CH A -61 CH B -122 CH A -122 CH B D3 1N4004 D4 1N400

15、4 R3 1/10W C1 0.047/630V R1 10/10W D1 1N4004 C2 0.047/630V R2 10/10W R4 1/10W D2 1N4004 P1 PLUG AC MALE J1 26-48-1045 1 2 3 4 R733/2W R833/2W SW126 AMP C11 0.15/400V C12 0.15/400V T1 C3 10000/67V C5 10000/67V C7 10000/67V C9 10000/67V C4 10000/67V C6 10000/67V C8 10000/67V C10 10000/67V BR2 MP14020

16、BR1 MP14020 L1 2uH L2 2uH RL1 FRL-24 RL2 FRL-24 J1 987-861 1 2 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 1 1 DD CC BB AA NOTE 1: 1K/10W ON 3301 1.1K/10W ON 4601 680/10W ON 7001 620/10W ON 6001 PRIOR TO 6-3-92 R14/R15 WERE 680/10W ON MODEL 6001 NOTE C1 IS NOT CORRECT ON PCB. MUST FIX NEXT R

17、EV DELETE THIS NOTE WHEN BOARD IS REVED! 21A0952 7001/6001/4601/3301 FAN DRIVER CREST AUDIO INC. 150 Florence Ave. A 11Wednesday, May 17, 2000 Hawthorne, NJ 07506 Title SizeDocument NumberRev Date:Sheetof Q1 MPSA13 R4 100K D2 1N4148 + - IC2A LM393N 3 2 1 84 R11 1K/1% R8 1K R7 1K R6 2.2K + - IC2B LM3

18、93N 5 6 7 IC1 LM317T 1 23 D3 1N4148 R12 1K/1% D1 1N4148C3 10/50V R1 390/2W IC3 LM317T 1 23 D5 1N4004 D4 1N4004 C1 0.1/100V R5 2.2K R9 39.2K/1% R10 39.2K/1% R15 NOTE 1 R14 NOTE 1 R17 221/1% R2 221/1% R16 4.7K R3 2.2K M1 26-48-1155 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Z1 1N5363A 8 8 7 7 6 6 5 5 4 4 3 3

19、 2 2 1 1 DD CC BB AA TURN ON DELAY/MUTE BALANCED INPUT/GAIN SERVO/HIGH PASSCURRENT LIMITER SIGNAL DETECTORLIMIT DETECTOR 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/

20、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 ON 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 150 Florence Ave. Hawthorne, NJ 07506 C 10Wednesday

21、, May 17, 2000 Title SizeDocument NumberRev Date:Sheetof VCC+ VCC+ VCC+ VCC+ VCC+ VCC+ VCC+ VCC+ VCC+ VCC+ VCC- VCC- VCC- VCC- 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

22、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 2N5551 C17470uF C14470uF C22 0.47uF 250V C23 0.1uF C15470uF R90 4.7K C18470uF C6 0.1uF Q14 2N5401 Q7 2N5551 Q8 2N5551 Q5 2N5551 Q6 2N5551 Q13 2N5551 R71 100 Q10 2N

23、5401 Q9 2N5401 Q11 2N5401 Q12 2N5401 D24 SF14 D28 1N4148 R89 2.7K R85 11K 1% 1W R86 549 1% D22 1N4148 D23 1N4148 R77 100 D25 SF14 C27 30pF R58 1K 0.1% R57 1K 0.1% R56 100K 0.1% R59 100K 0.1% R60 1K 0.1% R61 1K 0.1% R54 100K 0.1% R52 1K R23 10K R7 220K R35 680K R32 680K R25 150K R9 D 10K 0.2% C3 30pF

24、 R3 330K R1 15K R2 10K R4 4.7K R6 22K R15 4.7K R65 NOTE 3 R66 NOTE 3 R74 100 R80 100 R83 47 R84 47 R47 1M R46 100K R50 2.2K D3 1N4148 R70 511 1% Q3 2N5401 R82 511 1% Q4 2N5551 R75 8.25K 1% C2 100uF 35V R78 68.1 1% D4 1N4148 R76 8.25K 1% R73 68.1 1% R20 10K R72 68.1 1% Q1 2N5551 + - IC1 B LF353N 5 6

25、7 D21 1N4148 R9 B 10K 0.2% + - IC1 A LF353N 3 2 1 84 C19 0.1uF R9 A 10K 0.2% R16 200K 1% R9 C 10K 0.2% R10 20K 1% D5 1N4148 R264.7K D6 1N4148 C82.2uF 5% D9 1N4148 C4 30pF D8 1N4148 R17 100K 1% D10 1N4148 R63100K 0.1% D11 1N4148 C12 1/50V C13 1/50V + - IC2 A RC4559N 3 2 1 84 R45 2.2K C5 0.1uF R27 10K

26、 C9 2.2uF 5% R28 549 1% R79 68.1 1% OC1 CLM5010 21 5 46 R3410K R62 SELECTED R3110K R55 SELECTED D131N4148 J2-M 1 2 3 4 5 6 7 8 9 10 11 12 13 D121N4148 J3-M 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 R33100K J1-F 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 R19 1K C26 0.47uF 250V 8 8 7 7 6 6 5 5 4 4 3 3 2 2 1

27、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, CV601 NOTE 2: 27K 2W ON MOD

28、ELS 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, CC151, 3301 15K 2W ON MO

29、DELS 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, CV601 1K 10W ON MODELS CV301,

30、 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. 150 Florence Ave. Hawthorne, NJ 07506 C 10Wednesday, May 17, 2000 Title SizeDocument NumberRev Date:Sheetof VCC+ VCC+ VCC+

31、 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 22K Q4 2N5551 D3 1N

32、4148 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 1 2 3 4 5 6 7 89 10 11 12 13 14 15 16 Q12 2N5551 + - IC1A NE5532AN 3 2 1 84 Q6 2N5551 + - IC1B NE5532AN 5 6 7 Q10 2N5551 R31 4.7K R73 0 Q14 2N5551 R57 100 Q13 2N5401 Q9 2N54

33、01 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/0.1% + - IC2B R

34、C4559 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 100 R72 100 R7

35、4 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 SIP1A 10K/0.2% SIP1

36、C 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 1 2 3 4 5 6 7 8

37、 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 8 8 7 7 6 6 5 5 4 4 3 3 2 2 1 1 DD CC BB AA BALANCED INPUT/GAIN SERVO/HIGH PASSI.G.M. DETECTOR SIGNAL DETECTORCLIP DETECTORAM

38、PLIFIER 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, CV601 NOTE 2: 27K 2W ON MODELS 8001, 7001, CV601 20K 2W ON MODELS 6001, 4801, CC301 560 10W ON MODELS CC301 NOTE 4: R82, R

39、83, 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, CC151, 3301 15K 2W ON MODELS CV301, CC151, 3301 1K 10W ON MODELS CV301, CC151, 3301 560 10W ON MODELS CC301 620 10W ON

40、MODEL 6001 560 10W ON MODELS 4801, MA5850 680 10W ON MODEL 7001 1.1K 10W ON MODEL 4601 NOTE 3: 750 10W ON MODELS 8001, CV601 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 (NEW) (NEW) (NEW) (NEW) (NEW)

41、NOTE 4: R82, D20, VR1 ARE USED ON MODEL MA5850 ONLY 21C1124-0202 PRO-LINE PREAMP/FRONT END CREST AUDIO INC. 150 Florence Ave. Hawthorne, NJ 07506 C 11Wednesday, May 17, 2000 Title SizeDocument NumberRev Date:Sheetof VCC+ VCC+ VCC+ VCC+ VCC+ VCC+ VCC+ VCC+ VCC-VCC- VCC- VCC- VCC- VCC- VCC- VCC- VCC-

42、C10 0.001/50V R50 10K R33 22K R42 100K R69 NOTE 1 C1 100/35V C23 1nF R70 NOTE 1 R76 NOTE 2 R27 2.2K R77 NOTE 2 Z11N5353 Z21N5353 Z41N5938 C5 470pF R9 1K Z31N5938 D14 1N4148 R7 10K D12 1N4148 R10 100K D15 1N4148 R4 22K Q4 2N5551 D3 1N4148 C14470uF C2 47/35V C16470uF C18 0.47/250V R8 10K C21 0.1uF C17

43、470uF C15470uF C7 0.1/50V Q15 2N5401 IC4 NE5517AN 1 2 3 4 5 6 7 89 10 11 12 13 14 15 16 Q1A MPQ6700 + - IC1A NE5532AN 3 2 1 84 Q1B MPQ6700 + - IC1B NE5532AN 5 6 7 Q6 2N5551 Q10 2N5551 R31 4.7K Q14 2N5551 R57 100 Q1D MPQ6700 Q1C MPQ6700 Q7 2N5401 Q11 2N5401 R37 47K D18 SF14 R36 2.7K R78 2.7K R32 1.5K

44、/1% R82 NOTE 4 R79 11K/1%/1W R35 750/1% R34 499/1% D20 NOTE 4 R80 576/1% D16 1N4148 D17 1N4148 R58 100 D19 SF14 C22 30pF + - IC2B RC4559 5 6 7 D21 1N4148 R11 22K Q3 2N5401 D2 1N4148 R49 2.2K R28 10K R81 10K R29 2.7K D13 1N4148 R24 680K R30 47K R25 680K C13 10/35V R16 150K SIP1D 10K/0.2% C4 30pF R2 3

45、30K R1 15K R3 10K R5 4.7K R6 10K R14 10K/1% R65 NOTE 3 R15 10K/1% R66 NOTE 3 + - IC2A RC4559 3 2 1 84 R71 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 Q2 2N5551 R63 8.25K/1% R55 2.2K R62 68.1/1% R64 8.25K/1% R67 68.1/1% R61 68

46、.1/1% Q12 2N5551 SIP1B 10K/0.2% Q8 2N5551 C20 0.1uF R45 100/1% SIP1A 10K/0.2% R43 100/1% SIP1C 10K/0.2% R44 SELECT D4 1N4148 R17 4.7K D6 1N4148 C9 2.2/5%/100V C630pF D5 1N4148 D23 1N4004 D7 1N4148 D22 1N4004 R13 220K R47 SELECT D8 1N4148 R46 SELECT C11 1/50V D9 1N4148 Z5 SELECT C121/50V Z6 SELECT R1

47、8 2.2K C30.1/50V Q9 2N5401 R19 10K C8 2.2/5%/100V R40 47K R68 68.1/1% R20 576/1% R41 100K VR1 NOTE 4 R39 100K R2210K R2310K R38 47K J2-M 26-48-1135 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 + - 1C3A LM393 3 2 1 84 C19 0.47/250V R26 1K + - IC3B LM393 5 6 7