Crest-PFA600-pwr-sch维修电路原理图.pdf

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1、PFA600 Power amplifiers Schematic set 1. Display board 2. Input board 3. Preamp 4. Power supply driver 5. Power supply board 6. Relay board 7. Voltage monitor 8. Output module 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 RELAY GROUND RELAY GROUND GROUND MUTE CH. A LIMIT CH. A

2、CONTROL V. CH. A CLIP CH. A SIGNAL CH. A GROUND GROUND GROUND A/B MUTE AMP OUT CH. A RELAY CH. A ACTIVE CH. B TEMP/DC CH. B CLIP CH. B SIGNAL CH. B CLIP CH. A SIGNAL CH. A TEMP/DC CH. A ACTIVE CH. A GROUND GROUND +24V. OUT RELAY CH. B SIGNAL CH. B CLIP CH. B CONTROL V. CH. B LIMIT CH. B MUTE CH. B A

3、MP OUT CH. B TEMP SENSOR + CH. A TEMP SENSOR OUT CH. A TEMP SENSOR GND. CH.ATEMP SENSOR GND CH. B TEMP SENSOR OUT CH. B TEMP SENSOR + CH. B +24V. IN CH. B +24V. IN CH. A LED GROUND FAN GROUND FAN + 21C1169 PFA600 DISPLAY/PROTECT DRIVER CREST AUDIO INC. 150 Florence Ave. C 10Tuesday, June 27, 2000 Ha

4、wthorne, NJ 07506 Title SizeDocument NumberRev Date:Sheetof D20 1N4004 D21 1N4004 C6 100/25V Q2 2N5551 Q6 MPSA75 Q1 2N5551 TR2 MAC97A TR1 MAC97A R7 100K Q4 2N5551 Q3 2N5551 R21 1K R13 10K R14 10K R8 100K R4 10K D12 1N4148 R3 10K D3 1N4148 D5 1N4148 D7 1N4148 D9 1N4148 D2 1N4148 D4 1N4148 D6 1N4148 D

5、8 1N4148 D11 1N4148 D10 1N4148 D13 1N4148 D15 1N4148 R22 1K R25 47K R26 47K R37 2.2K D17 1N4148 D16 1N4148 D14 1N4148 Q5 MPSA75 R30 10K D18 1N4148 D19 1N4148 C5 0.1/100V R27 4.3K R28 4.3K R29 10K R38 100K R39100K C1 1/50V C2 1/50V C4 470/6.3V C3 470/6.3V R5 2.7K R9 2.7K R10 2.7K R35 499/1% R36 499/1

6、% R23 1K/1% R24 1K/1% R18 2.7K R20 7.5K R19 7.5K J2 26-48-1156 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 R15 2.7K R17 2.7K R6 2.7K J1 26-48-1156 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 R31 390K R33 4.7K R34 4.7K R16 2.7K R11 5K/5W R12 5K/5W Z1 1N5927 Z2 1N5927 R32 390K C8 100/25V C7 100/25V + - IC1B LM614 6 5

7、 7 + - IC1A LM614 2 3 1 413 IC1E LM614 8 13 9 J3 26-48-1136 1 2 3 4 5 6 7 8 9 10 11 12 13 R44 15 R43 15 Z3 1N5344 Z4 1N5344 Z5 1N5344 D23 1N4004 D22 1N4004 R42 91/10W + - IC1C LM614 11 12 10 + - IC1D LM614 15 14 16 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 21A1171 PFA600 IN

8、PUT PCB CREST AUDIO INC. 150 Florence Ave. A 11Tuesday, June 27, 2000 Hawthorne, NJ 07506 Title SizeDocument NumberRev Date:Sheetof .25 LUG J1 PL08 1 2 3 4 5 6 7 8 J2 PL08 1 2 3 4 5 6 7 8 J3 26-48-1175 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 BAR1 72706-C-50-81 1 2 3 4 5 6 VR1 PTC15XD 5KAP VR2 PTC1

9、5XD 5KAP R1680/10W R2680/10W 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 PASSCURRENT LIMITER SIGNAL DETECTORCLIP DETECTORAMPLIFIER FRONT END/IC POWER SUPPLY TURN ON DELAY ATTENUATION/MUTE ATTENUATOR DRIVER NOTE 1: 6.8K 2W 5% NOTE 2: 20K 2W 5% NOTE 3:680 10W 5% 21C1124-

10、PFA PFA600 PREAMP/FRONT END CREST AUDIO INC. 150 Florence Ave. Hawthorne, NJ 07506 C 10Tuesday, June 27, 2000 Title SizeDocument NumberRev Date:Sheetof VCC+ VCC+ VCC+ VCC+ VCC+ VCC+ VCC+ VCC+ VCC VCC-VCC- VCC- VCC- VCC- VCC- VCC- VCC- VCC- R70 NOTE 1 R76 NOTE 2 R77 NOTE 2 R69 NOTE 1 R37 47K R73 0 R1

11、1 2.2K + - IC2B RC4559 5 6 7 R82 NOTE 4 D2 1N4148 D13 1N4148 R3047K C13 10/35V R29 2.2K + - IC3A LM339N 312 4 5 2 R50 10K R4 22K C5 470pF VR1 NOTE 4 D21 1N4148 R81 10K R83 NOTE 4 R54 1M R53 100K R55 2.2K Q5 2N5401 + - IC3B LM339N 6 7 1 + - IC3D LM339N 10 11 13 + - IC3C LM339N 8 9 14 IC4 NE5517AN 1 2

12、 3 4 5 6 7 89 10 11 12 13 14 15 16 + - IC1B NE5532AN 5 6 7 + - IC1A NE5532AN 3 2 1 84 D12 1N4148 R31 4.7K R34 499/1% R35 1.0K/1% R36 3.3K R32 1.0K/1% C1 100/35V R33 22K Z11N5353 Z31N5938 Z21N5353 Z41N5938 Q3 MPSA75 R9 10K R10 100K D3 1N4148 R8 100K C2 47/35V R7 10K Q1 2N5401 Q2 2N5551 D1 1N4148 D4 1

13、N4148 D6 1N4148 D5 1N4148 D7 1N4148 D8 1N4148 D9 1N4148 R13 220K SIP1C 10K/0.2% SIP1A 10K/0.2% R18 2.2K R19 10K R2310K C10 0.001/50V R20 549/1% D101N4148 R2210K R26 1K R27 2.2K D111N4148 R21 100K C21 0.1uF C14470uF C16470uF C15470uF C17470uF Q4 2N5551 C18 0.47/250V D14 1N4148 D15 1N4148 C7 0.1/50V Q

14、15 2N5401 Q8 2N5551 Q6 2N5551 Q10 2N5551 Q14 2N5551 Q9 2N5401 Q11 2N5401 D18 SF14 R78 2.7K R79 11K/1%/1W R80 549/1% R57 100 Q12 2N5551 Q13 2N5401 Q7 2N5401 D16 1N4148 D19 SF14 C22 30pF R25 680K R48 100K/0.1% R47 100K/0.1% R43 1K/0.1% R42 1K/0.1% R41 1K/0.1% R45100K/0.1% R24 680K R44 1K/0.1% R58 100

15、D17 1N4148 R28 10K R49 2.2K R16 150K R71 100 R75 47 C4 30pF R51 1M R65 NOTE 3 R66 NOTE 3 R3 10K R1 15K R2 330K R6 10K R5 4.7K R38 10K R74 47 R72 100 R15 10K/1% + - IC2A RC4559 3 2 1 84 SIP1D 48.7K/1% R52 100K C20 0.1uF R174.7K C9 2.2/5%/100V R56 2.2K R64 8.25K/1% R59 511/1% R60 511/1% R61 68.1/1% R6

16、7 68.1/1% R62 68.1/1% R63 8.25K/1% SIP1B 48.7K/1% R12 12K C630pF C8 2.2/5%/100V R46100K/0.1% R68 68.1/1% J2-M 26-48-1135 1 2 3 4 5 6 7 8 9 10 11 12 13 J3-M 26-48-1155 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 C19 0.47/250V R40 SELECTED R39 SELECTED J1-F 09-52-3173 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17

17、 C11 1/50V C121/50V C30.1/50V 8 8 7 7 6 6 5 5 4 4 3 3 2 2 1 1 DD CC BB AA GROUND GROUND GROUND +24V IN +24V IN LOOP LOOP GROUND GROUND GROUND GROUND ENABLE ENABLE GATE Q9 GATE Q8 CURR.LIMIT CURR.LIMIT REV NOTES: 10/6/94 CHANGED Z1 FROM 1N829 TO 1N4691, R17 FROM 100K TO 10K 21A1173 PFA600 POWER SUPPL

18、Y DRIVER CREST AUDIO INC. 150 FLORENCE AVE. HAWTHORNE, NJ 07506 A 11Tuesday, June 27, 2000 Title SizeDocument NumberRev Date:Sheetof C11 10/50V D3 SF14 D4 SF14 L1 1mH J1 09-48-2131 1 2 3 4 5 6 7 8 9 10 11 12 13 IC1 UC3825 8 9 10 12 5 15 3 116 14 74 13 11 62 R8 10/1W R7 4.7/1W Q2 2SC3346 Q3 2SA1329 R

19、9 10/1W Q4 2SC3346 D2 1N5819 D1 1N5819 Q1 2N5551 R16 1K C3 4.7nF 2% R17 10K C4 0.01/50V C5 0.018/50V Q7 TIP112 Q5 2SA1329 R3 6.2K R4 620 R5 10K Q6 2SC3281 R11K R15 1K 1% R14 301 1% C10 1/63V R10 2.2/1W R13 10K C6 0.1/50V C10.1/50V R6 1.21K/1% C8 0.1/50V D5 SF14 D6 SF14 R2 510 Z2 1N5930 C7 1/63V R12

20、2K Z1 1N4691 R11 2.2/1W C12 1/63V J2 26-48-1045 1 2 3 4 C21/50V C13 10/50V C9 560PF 8 8 7 7 6 6 5 5 4 4 3 3 2 2 1 1 DD CC BB AA 1 3 5 7 2 4 8 6 910 11124 6 1 2 3 5 7 8 9 11 12 13 14 15 16 17 +28VDC +28VDC -45VDC +45VDC DIRECT CONNECTION # 26A1173 10 ON HEAT SINK ON HEAT SINK GATE Q8 GATE Q9 CURR.LIM

21、IT CURR.LIMIT GROUND GROUND GROUND +24V OUT +24V OUT LOOP LOOP GROUND GROUND GROUND GROUND GROUND GROUND T1 3 1 1 3 50T 50T 2T 2T 2T 2T 5T 5T 5T 5T ON HEAT SINK TO J2, PINS 1&2, DRIVER PCB TO J1 OF DRIVER PCB, 22 GA. 22 GA. REV NOTES: 10/6/94 ADDED Z3, CHANGED R6, R7 TO 1.5K 21B1183 PFA600 POWER SUP

22、PLY MAIN BOARD CREST AUDIO INC 150 FLORENCE AVE. B 11Tuesday, June 27, 2000 HAWTHORNE, NJ 07506 Title SizeDocument NumberRev Date:Sheetof Q9-4 Q8-4 Q8-5 Q9-5 Q9-4 Q8-4 T2-1 T2-4 T2-2,3 + FROM CIRCUIT BREAKER GND FROM BATTERY RED1 RED2 RED/BLK1 RED/BLK2 BLK1 BLK2 GRN/BLK1 GRN/BLK2 GRN1 GRN2 Q9-5 Q8-5

23、 BLK3 BLK4 T2-4 T2-1 T2-2,3 R6 1.5K R7 1.5K L1-C 100uH Z3 5KP36A F1 FUSE D2 1N4004 D3 1N4004 INOUT GND IC1 LM7805 C14 25uF/35V F2 100C J3 26-03-4020 1 2 BR1 50AL2 1mH J1 26-48-1135 1 2 3 4 5 6 7 8 9 10 11 12 13 L1-F 25uH D6A FEP6DT 12 D6B FEP6DT 32 J2 26-48-1085 1 2 3 4 5 6 7 8 Z2 1N4749 T2 CUR XFMR

24、 Z1 1N5333A D1 HER155 L1-D 100uH L1-E 100uH T1 PWR XFMR L1-B 100uH L1-A 100uH Q9 IRFK4H100 Q8 IRFK4H100 C3 1n/1600V C4 1n/1600V C5 15000/70V C6 15000/70V C7 15000/70V C8 15000/70V C9 2.2/100V C10 2.2/100V C11 2.2/100V D5 MBR1645 D4 MBR1645 C12 2.2/100V R1 33/5W C1 10n/1000V C2 10n/1000V R2 50/25W R3

25、 50/25W D9A FEP16JT 12 D9B 32 R4 100/25W R5 100/25W D7A FEP6DT 12 D7B FEP6DT 32 C13 1/63V C15 20MF/100V D11B 32 D11A FEP16JT 12 D8A FEN16JT 12 D8B 32 D10B 32 D10A FEN16JT 12 8 8 7 7 6 6 5 5 4 4 3 3 2 2 1 1 DD CC BB AA AMP OUT CH. A AMP OUT CH. A AMP OUT CH. A AMP OUT CH. B AMP OUT CH. B AMP OUT CH.

26、B ACTIVE CH. A TEMP/DC CH. A CLIP CH. A SIGNAL CH. A CLIP CH. B SIGNAL CH. B TEMP/DC CH. B ACTIVE CH. B GROUND GROUND GROUND GROUND GROUND GROUND LED GROUND RELAY CH. A RELAY CH. B RELAY GROUND RELAY GROUND 26A1170 PFA600 RELAY/LED PCB CREST AUDIO INC. 150 Florence Ave. A 00Tuesday, June 27, 2000 Ha

27、wthorne, NJ 07506 Title SizeDocument NumberRev Date:Sheetof FROM CH. A OUT FROM CH. B OUT PWR SUPPLY GND PWR SUPPLY GNDPWR SUPPLY GND R3 1/10W C1 0.047/630V R1 10/10W R4 1/10W L1 2uH C2 0.047/630V R2 10/10W L2 2uH RL1 FRL-24 RL2 FRL-24 LED1 ACTIVE LED3 SIGNALLED4 CLIP LED2 PROTECT LED5 CLIPLED6 SIGN

28、AL LED8 ACTIVE LED7 PROTECT J3 26-48-1135 1 2 3 4 5 6 7 8 9 10 11 12 13 BAR 1 72512-50-55-C 1 2 3 4 5 6 7 8 9 10 11 12 8 8 7 7 6 6 5 5 4 4 3 3 2 2 1 1 DD CC BB AA 30V 30V +24V IN GROUND REMOTE REMOTE +24V OUT CH. A ENABLE CH. A ENABLE CH. B ENABLE CH. B ENABLE GROUND R8,R11 AND Q2 ARE NOT USEDNOTE:

29、R3 CHANGED FROM 10K TO 1K/1W ON 4/7/92 R4 CHANGED FROM 1K/1W TO 680/1W ON 4/7/92 26A1172 PFA600 VOLTAGE MONITOR/CONTROLLER CREST AUDIO INC. 150 Florence Ave. A 00Tuesday, June 27, 2000 Hawthorne, NJ 07506 Title SizeDocument NumberRev Date:Sheetof R11 10K J1 26-48-1125 1 2 3 4 5 6 7 8 9 10 11 12 D1 1

30、N4004 RL1 FRL-24 R1 10K/1% Z1 1N5927 Z3 1N5917 Z2 1N5913 F1 3A/MINI R2 3.32K/1% + - IC1B AD712 5 6 7 + - IC1A AD712 3 2 1 84 Q1 2SC2336 D2 1N4148 R5 2.2K R6 2.2K D3 1N4004 D5 1N4004 R7 2.2K D6 1N4004 D7 1N4004 Q2 MPSA13 R8 10K LED1 O.V. LED2 NORMAL LED3 U.V. C1 10/25V R4 680/1W R3 1K/1W D4 1N4004 C2 10/25V R9 10K R10 10K