Crest-PRO4801-pwr-sch维修电路原理图.pdf

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Crest-PRO4801-pwr-sch维修电路原理图.pdf

8 8 7 7 6 6 5 5 4 4 3 3 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, CC151/150 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, 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 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 2N5401 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 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 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 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 RadioFans.CN 收音机爱好者资料库 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 A B A2 A3 A1 B2 B3 B+ B- A+ A- A2 A2 A3 A3PARALLEL BRIDGE STEREO B- B+ PIN 3 HOT (+) PIN 3 HOT (+) 21A1006 6001/4801/3301 INPUT PCB CREST AUDIO HAWTHORNE, NJ 07506 A 10Wednesday, May 17, 2000 Title SizeDocument NumberRev Date:Sheetof SW1 MSSA2350 J5 1 2 3 4 5 6 7 8 9 10 11 12 13 J4 OCTAL 1 2 3 4 5 6 7 8 J3 OCTAL 1 2 3 4 5 6 7 8 J1 NC3FD 3 21 J2 NC3FD 3 21 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 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 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 TEMP SENSOR GND 27 V. IN R40, R41 RESISTOR VALUES MODELVALUE 4801 6001 700184.5K 1/4W/1% 73.2K 1/4W/1% 60.4K 1/4W/1% 4601 330141.2K 1/4W/1% 53.6K 1/4W/1% 21C1095 02 7-6-48-46-3301 DISPLAY W/NEXSYS CONTROL 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 CENTER TAP R14 10K R21 1K R22 1K R25 4.7K R26 4.7K R37 2.2K D3 1N4148 C9 470/25V D5 1N4148 D7 1N4148 D9 1N4148 D2 1N4148 D4 1N4148 D6 1N4148 D8 1N4148 D11 1N4148 D10 1N4148 C7 100/25V D13 1N4148 C8 100/25V D15 1N4148 D17 1N4148 D16 1N4148 D14 1N4148 LED 1 CLIP C5 0.1/100V Q5 MPSA75 D18 1N4148 D19 1N4148 R29 10K R30 10K 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 D1 1N4004 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 R42 33/2W/5% R20 5.1K R19 5.1K 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 M12 26-48-1136 1 2 3 4 5 6 7 8 9 10 11 12 13 R11 5K/5W + - IC1A LM614 2 3 1 413 R12 5K/5W + - IC1B LM614 6 5 7 Z1 1N5927 Z2 1N5927 IC1E LM614 8 13 9 LED 6 TEMP/DC Q6 MPSA75 VR1 5KB Q2 2N5551 VR2 5KB + - IC1D LM614 15 14 16 LED 2 CLIP M9 26-48-1102 1 2 3 4 5 6 7 8 9 10 LED 4 SIGNAL M7 26-48-1035 1 2 3 + - IC1C LM614 11 12 10 LED 3 SIGNAL M8 26-48-1035 1 2 3 Q1 2N5551 Q4 2N5551 Q3 2N5551 TR2 MAC97A TR1 MAC97A LED 5 TEMP/DC LED 7 ACTIVE D12 1N4148 R3 10K R4 10K R41 SELECTED R7 100K R40 SELECTED R8 100K R13 10K 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 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 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 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 4.7K 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 + - IC1D 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 LM614 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 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 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 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 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 TEMP SENSOR GND 27 V. IN R40, R41 RESISTOR VALUES MODELVALUE 4801 6001 700184.5K 1/4W/1% 73.2K 1/4W/1% 60.4K 1/4W/1% NOTE 1: NOTE 2: NOTE 2: NOTE 2: R3, R4 NOT INSTALLED RESERVED FOR FUTURE USE NOTE 3: R52 USED FOR FIXED SIGNAL PRESENSE THRESHOLD 21C1229 02 MA5850 DISPLAY WITH NEXUS CONTROL CREST AUDIO INC. 150 Florence Ave. C 10Friday, May 19, 2000 Hawthorne, NJ 07506 Title SizeDocument NumberRev Date:Sheetof 34 V. AC 34 V. AC 17 V. AC R14 10K R21 1K R22 1K R25 4.7K R26 4.7K R37 2.2K D3 1N4148 D5 1N4148 D7 1N4148 D9 1N4148 D2 1N4148 D4 1N4148 D8 1N4148 D11 1N4148 D10 1N4148 C7 100/25V D13 1N4148 C8 100/25V D15 1N4148 D17 1N4148 D1 1N4004 D16 1N4148 Q1 PMBT5551 D14 1N4148 LED 1 CLIP C5 0.1/100V D6 1N4148 Q5 MPSA75 BR1 RS202 D18 1N4148 F1 3A/MINI D19 1N4148 LED 3 SIGNAL C6 470/50V R5 2.7K R42 10K + -IC2A LM393M 3 2 1 84 R29 10K R46 10K/1W R30 10K C10 2.2/100V R28 390 R47 2.2K/1W R27 390 R38 100K R39100K R43 10K R23 750/1% + - IC2B LM393M 5 6 7 R24 750/1% C1 1/50V C2 1/50V R48 10K/1W R35 499/1% R49 2.2K/1W R36 499/1% C11 2.2/100V R52 NOTE 3 R45 45.3/1% VR3 250 C3 470/6.3V R44 499/1% C4 470/6.3V R53 2.2K R9 2.7K R54 33R/5W R10 2.7K R6 2.7K R18 2.7K R15 2.7K VR1 5KB R17 2.7K VR2 5KB R34 4.7K M7 26-48-1035 1 2 3 R33 4.7K M8 26-48-1035 1 2 3 R31 390K M9 26-48-1102 1 2 3 4 5 6 7 8 9 10 R20 5.1K R19 5.1K 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 M12 26-48-1136 1 2 3 4 5 6 7 8 9 10 11 12 13 R32 390K R11 5K/5W + - IC1A LM614M 2 3 1 413 R12 5K/5W + - IC1B LM614M 6 5 7 Z1 1N5927 Z2 1N5927 IC1E LM614M 8 13 9 C9 470/16V LED 6 TEMP/DC Q6 MPSA75 Q2 PMBT5551 LED 2 CLIP + - IC1C LM614M 11 12 10 LED 4 SIGNAL + - IC1D LM614M 15 14 16 Q4 PMBT5551 Q3 PMBT5551 TR2 MAC97A TR1 MAC97A Z3 1N5913B LED 5 TEMP/DC R50 2.2K LED 7 ACTIVE Z4 1N5913A D12 1N4148 R3 10K R4 10K R41 NOTE 1: R7 100K R8 100K R40 NOTE 1: R13 10K 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 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 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, 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 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) 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 11Friday, May 19, 2000 Title SizeDocument NumberRev Date:Sheetof 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 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 C17470uF 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/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 330K 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 68.1/1% 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 R18 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 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 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 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, 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 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) 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- 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 C17470uF 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/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 330K 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 68.1/1% 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 1N414

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