Crest_Audio_LA_Series_Schematics电路图.pdf

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1、LA Series power amplifiers Schematic set 1. LA 601 / 901 / 1201 Preamp 2. LA 601 Power supply 3. LA 901 / 1201 Power supply 4. LA 601 Output stage 5. LA 901 Output stage 6. LA 1201 Output stage Note: The images in this schematic set are formatted for printing on 11 X 17 tabloid size paper. The schem

2、atic set can be printed on 8.5 X 11 paper by using the Shrink to fit option in Adobe Acrobat reader, however some of the details will be very small. 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: NOTE 2: LA901 = 36.5K/1% LA901 = 12.7K/1% LA601 = 13.3K/1% LA1201 = 12.4K/1

3、% LA1201 = 40.2K/1% LA601 = 30.1K/1% NOTE 3:LA601 = 680/10W LA901 = 820/10W LA1201 = 1K/10W NOTE 4: LA601 = 1.5K/2W LA901 = 2.7K/2W LA1201 = 3.3K/2W (22V) (22V) 21B1113-04 PREAMP/DRIVER FOR LA SERIES CREST AUDIO INC. 150 Florence Avenue B 11Tuesday, May 16, 2000 Hawthorne, NJ 07506 Title SizeDocumen

4、t NumberRev Date:Sheetof CH A OUT CH B OUT CH A MODULE CH B MODULE SUPPLY GND SUPPLY GND R17100C20 330pF C19 330pF R15 100 + - IC2B STK3152 15 14 13 12 1011 + - IC2A STK3152 1 2 8 7 3 4 9 65 J2 CH B C23 150pF J1 CH A R9470 + - IC1A OPA2604 3 2 1 84 R10470 + - IC1B OPA2604 5 6 7 C13 1/63V R5 100K R1

5、90.9K/1% R14 100K/1W/2% R13100K/1W/2% R16100 R26 10K/1% R27 10K/1% Z3 1N5359 R6 100K R24 NOTE 2 R21 NOTE 2: R28 NOTE 2 R25 NOTE 2 R12 6.65K/1% R11 6.65K/1% BAR1 INPUT BARRIER 1 2 3 4 5 6 C7 0.1/100V C8 0.1/100V C12 1/63V C18 0.1/100V C17 0.1/100V R3 NOTE 1 R4 NOTE 1 J4 CH B OCTAL 1 2 3 4 5 6 7 8 J3

6、CH A OCTAL 1 2 3 4 5 6 7 8 J7 CH B MODULE 1 2 3 4 5 6 7 8 J8 CH A MODULE 1 2 3 4 5 6 7 8 RLY1 T90N5D12-12 RLY2 T90N5D12-12 R29 NOTE 3 R30 NOTE 3 J9 RELAY 1 2 C14 10/16V/BP C11 10/16V/BP BAR2 OUTPUT BARRIER 1 2 3 4 5 6 SW1 MSSA2350 C3 30pF D1 1N4148 C10.1/100V C2 0.1/100V C4 30pF C630pF C15 100/100V

7、C16 100/100V Z1 1N5933 R194.7/1W R20 4.7/1W 0C1 VTL5C6 0C2 VTL5C6 D2 1N4148 J10 LIMITER 1 2 3 4 D3 1N4148 R31 100 D4 1N4148 R32 100 D5 1N4148 D7 1N4148 D8 1N4148 R7 NOTE 4 C530pF R8 NOTE 4 D6 1N4148 Z2 1N5933 R23 10K/1% R22 10K/1% R2 90.9K/1% C1015pF C9 15pF VR1 5K C22 330pF C21 330pF VR2 5K C24 150

8、pF R18100 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 B RELAY A CHASSIS COMPONENTS TO CH.A MODULETO CH.B MODULE TEMP SENSOR POWER TEMP SENSOR OUTPUT GROUND SPKR LEVEL B (DC PROTECT) GROUND GROUND TEMP SENSOR POWER TEMP SENSOR OUTPUT GROUND SPKR LEVEL A (DC PROTECT) CH.

9、ACH. B B CH. POWER+ B CH. PROTECT+ A CH. PROTECT+ A CH. POWER+ B CLIP- B CLIP- A CLIP- FAN + FAN GND A CLIP- 21C1101 04 LA601 POWER SUPPLY PCB SCHEMATIC CREST AUDIO INC. 150 Florence Ave. Hawthorne NJ 07506 C 11Thursday, May 18, 2000 Title SizeDocument NumberRev Date:Sheetof GND GND GND GND + + - -

10、D5 1N4004 R7 4.7K/2W R10 2.2K D2 1N4004 R25 4.7K/2W Z5 1N960 Q2 2N5551 Z6 1N960 Q5 MPSA13 Q1 2N5401 Q3 2N5551 R42 100K Z1 1N5353B Q4 2N5401 Z2 1N5353B D12 1N4148 R44 1K R46 1.2K + - IC3B LM393N 5 6 7 D11 1N4148 C1 0.15/400V R40 1K/1% R3 200/2W D10 1N4148 P1 PLUG AC MALE R28 200/2W C10 10/50V C2 10,0

11、00/67V R36 100/2W R47 1.2K C3 10,000/67V R39 19.8K/1% R38 19.8K/1% R37 442/1% R43 2.2K Z8 1N5353 SW1 12A IC2 LM317T 1 23 BR1 BR354W R41 1K/1% R45 1K J2 26-48-1055 1 2 3 4 5 + - IC3A LM393N 3 2 1 84 D71N4004 D9 1N4004 C4 220/80V R6 50/10W + - IC1B LM614 6 5 7 + - IC1C LM614 11 12 10 R29 10K R19 2.2K

12、+ - IC1A LM614 2 3 1 413 + - IC1D LM614 15 14 16 R34 1K R33 1K D6 1N4148 R4 5.6K R27 5.6K D1 1N4148 R2 10K R11 330K C11 0.1/100V R22 330K R30 1.5K/1W J5 26-48-1025 1 2 R21 1K R1 1.5K/1W J1 26-48-1055 1 2 3 4 5 R12 1K R13 1K Z7 1N5920 R18 1K/1% Z4 1N5920 R20 1K J3 26-48-1025 1 2 R15 1K/1% IC1E LM614

13、8 13 9 D3 1N4148 J4 22-15-4087 1 2 3 4 5 6 7 8 D81N4004 C7 470/25V C6 470/25V F1 3A/MINI R23 15K R32 1K/1W R9 15K BR2 RS202 R31 1K/1W C5 470/25V C9 1000/25V C8 470/25V R24 10K R26 1K/1W R5 1K/1W TR1 MAC97 R8 10K D4 1N4148 R35 180/5W T1 120 VOLT VERSION TR2 MAC97 R17 499/1% R14 499/1% R16 2.2K RadioF

14、ans.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 RELAY A RELAY B CH. ACH. B CH. ACH. B LA901 = 12 A. LA1201 = 15 A. C2 - C5 ARE 7,300uF/80V ON MODEL LA901. C6, C7 ARE NOT USED. C2 - C7 ARE 6,800uF/90V ON MODEL LA1201. CH. A CH. B GROUND GROUND GROUND GROUND GROUND TEMP SENSOR POW

15、ER TEMP SENSOR OUTPUT TEMP SENSOR OUTPUT TEMP SENSOR POWER A CLIP- A CLIP+ A CH. POWER+ A CH. PROTECT+ B CLIP- B CLIP+ B CH. POWER+ B CH. PROTECT+ A CLIP+ A CLIP- B CLIP- B CLIP+ SPKR LEVEL B (DC PROT) SPKR LEVEL A (DC PROT) FAN DRIVE V+ 21C1127 LA901/1201 POWER SUPPLY/FAN DRIVER PCB CREST AUDIO INC

16、. 150 Florence Ave. C 11Tuesday, May 16, 2000 Hawthorne, NJ 07506 Title SizeDocument NumberRev Date:Sheetof GND GND GND GND + + - - T1 120 VOLT VERSION Q5 MPSA13 + - IC1B LM614 6 5 7 + - IC1A LM614 2 3 1 413 R11 1K R12 1K C11 1000/25V R5 499/1% R6 499/1% R30 1K/1% D5 1N4148 P1 PLUG AC MALE R33 19.6K

17、/1% R31 1K/1% R32 19.6K/1% R4 2.2K R8 750/1% R10 10K R7 750/1% R9 10K Q2 2N5551 BR1 BR354W R25 100/2W Q1 2N5551 R36 2.2K IC1E LM614 8 13 9 R35 2.2K Z2 1N960 R37 47/1W Z1 1N960 R39 1.5K R38 47/1W R40 1.5K Z3 1N5355A R42 1.5K D1 1N4148 R41 1.5K C2 NOTE 1 Q4 2N5401 C6 NOTE 1 Q3 2N5401 C4 NOTE 1 C5 NOTE

18、 1 C3 NOTE 1 J1 22-02-2085 1 2 3 4 5 6 7 8 C7 NOTE 1 J4 26-48-1025 1 2 D4 1N4148 R21 2.2K D3 1N4148 R22 2.2K + - IC1C LM614 11 12 10 + - IC1D LM614 15 14 16 D101N4148 TR2 MAC97 D7 1N4004 R245K/5W IC2 LM317 1 23 D8 1N4148 C15 470/25V R26 442/1% C14 470/25V R34 2.2K TR1 MAC97 R235K/5W J5 26-48-1025 1

19、2 J3 26-48-1075 1 2 3 4 5 6 7 J2 26-48-1075 1 2 3 4 5 6 7 R1610KR1510K C18 470/25V SW1 12/15A C19 470/25V R18 22K R17 22K R2 10K R1 10K Z5 1N5920 Z4 1N5920 F1 3A/MINI C1 0.15/400V BR2 RS202 C17 10/50V R13 330K R14 330K R27 100K R28 1K R43 1.5K/1W R29 1K R44 1.5K/1W D6 1N4148 8 8 7 7 6 6 5 5 4 4 3 3

20、2 2 1 1 DD CC BB AA TEMP SENSOR POWER TEMP SENSOR OUTPUT CLIP (-) SPEAKER RAIL SPEAKER RAIL SPEAKER RAIL TEMP SENSOR GROUND + DRIVE + DRIVE - DRIVE - DRIVE + 65 VNL - 65 VNL 4/14/92 R37 changed from 274/1% to 255/1% 21B1157 01 LA601 OUTPUT STAGE CREST AUDIO INC. 150 Florence Ave. B 11Thursday, May 1

21、8, 2000 Hawthorne, NJ 07506 Title SizeDocument NumberRev Date:Sheetof OUT GROUND +65VNL -65VNL Q11 2SA1302 R14 51/2W C4 0.1/100V R11 150/1W R10 150/1W Q1 2N5551 Q2 2N5401 D4 1N4148 R2 NOT USED D3 1N4148 R22 0.33/5W R7 100/1W R21 0.33/5W C8 10n/50V C3 0.1/100V C6 1n/50V C5 0.047/630V R1 NOT USED R28

22、2.2/2W L12uH C9 10n/50V R1001/2W C7 1n/50V JP? HEADER 5 1 2 3 4 5 R25 100K J1 INPUT 1 2 3 4 5 6 7 8 R37 255/1% R23 100K R41 100/1% R35 15K R8 10/1W R39 100K R24 15K R9 10/1W Q3 TIP110 Q17 2N5551 R47 20K R12 2.2/1W Q19 2N5401 R46 10K R13 2.2/1W Q12 2N5551 Z1 1N4735A R19 2.2/1W Q13 2N5551 Z2 1N4749A R

23、20 2.2/1W D8 1N4004 R5 1.2K D9 1N4148 R48 20K R26 220 R6 390 R49 10K VR1 PTC15LB/250 Z3 1N4749A Z4 1N4735A D5 FR204 D10 1N4148 D6 FR204 Q4 2SC2336 Q5 2SA1006 Q6 2SC3281 Q7 2SA1302 Q8 2SC3281 Q9 2SA1302 R15 4.7/2W R17 0.33/5W R16 4.7/2W R18 0.33/5W D11N4004 D21N4004 IC2 LM35DP 1 32 R29 1K R3 470 R4 4

24、70 C1 100/6.3V C2 0.1/100V Q10 2SC3281 8 8 7 7 6 6 5 5 4 4 3 3 2 2 1 1 DD CC BB AA TEMP SENSOR POWER TEMP SENSOR OUT CLIP - CLIP + OUTPUT SIGNAL POWER SUPPLY GROUND POWER SUPPLY GROUND 21C1240 1 LA901 OUTPUT STAGE CREST AUDIO INC. 150 Florence Ave. C 11Tuesday, May 16, 2000 Hawthorne, NJ 07506 Title

25、 SizeDocument NumberRev Date:Sheetof OUT GROUND + 75 V. - 75 V. Q12 2SC3281 R68 16K Z4 1N5925A Q18 2SC3281 Z3 1N5941A Q13 2SA1302 R67 20K Q11 2SA1302 D9 1N4148 D10 1N4148 R26 0.33/5W R10 30/2W R8 51/2W C6 0.1/100V VR1 PTC15LB/100 R5 150/1W R4 150/1W Q28 2N5551 Q29 2N5401 D8 1N4148 D7 1N4148 R62 NOT

26、USED R3 100/1W C7 0.1/100V C10 0.01/50V C5 0.047/630V R60 2/5W C8 0.001/50V L1 2uH R61 NOT USED R59 1/5W R2 620 C9 0.001/50V R41 150/1% C11 0.01/50V R42 150/1% R43 100/1% R44 100/1% J2 TEMP/CLIP 1 2 3 4 5 6 7 J1 INPUT 1 2 3 4 5 6 7 8 R6 10/1W R7 10/1W R9 30/2W R11 2.2/1W R12 2.2/1W R15 2.2/1W R16 2.

27、2/1W R17 2.2/1W R18 2.2/1W D5 FR204 D6 FR204 Q2 2SC2336BQ Q3 2SA1006BQ Q4 2SC3281 Q5 2SA1302 Q6 2SC3281 Q7 2SA1302 IC2 LM35DP 1 32 Q1 2SC3068 R1 680 IC1 LA2500 3 4 1 2 9 7 8 5 6 D3 1N4004 D4 1N4004 D11N4004 D21N4004 R23 2.2/1W R24 2.2/1W Q19 2SA1302 R25 0.33/5W R29 0.33/5W R30 0.33/5W R31 0.33/5W R3

28、2 0.33/5W R37 0.33/5W R38 0.33/5W R39100K R40100K Q20 2N5551 Q21 2N5401 Q22 2N5401 Q23 2N5551 Q24 2N5401 Q25 2N5551 Q26 2N5401 Q27 2N5551 R45 15K R46 15K R47 100K R48 100K R49 15K R50 15K R53 270K R54220 R55220 R56 1K R66 20K R63 470 R64 470 C1 100/6.3V R65 16K C2 0.1/100V Z1 1N5925A Q10 2SC3281 Z2

29、1N5941A 8 8 7 7 6 6 5 5 4 4 3 3 2 2 1 1 DD CC BB AA 21C1159 1 LA1201 CREST AUDIO INC. 150 Florence Ave. C 11Thursday, May 18, 2000 Hawthorne, NJ 07506 Title SizeDocument NumberRev Date:Sheetof OUT GROUND + 85 V. - 85 V. R26 0.33/5W R10 30/2W D9 1N4148 R8 51/2W D10 1N4148 C6 0.1/100V VR1 PTC15LB/100

30、R5 150/1W R4 150/1W Q28 2N5551 Q29 2N5401 D8 1N4148 D7 1N4148 R3 100/1W C7 0.1/100V C5 0.047/630V R60 2/5W L1 2uH R59 1/5W R6 10/1W R7 10/1W R2 620 R9 30/2W R41 100/1% R11 2.2/1W R43 100/1% R12 2.2/1W R44 100/1% R42 100/1% J1 INPUT 1 2 3 4 5 6 7 8 R15 2.2/1W J2 CLIP/TEMP 1 2 3 4 5 6 7 R16 2.2/1W R17

31、 2.2/1W R18 2.2/1W R19 2.2/1W R20 2.2/1W R21 2.2/1W R22 2.2/1W D5 FR204 D6 FR204 Q2 2SC2336BQ Q3 2SA1006BQ Q4 2SC3281 Q5 2SA1302 Q6 2SC3281 Q7 2SA1302 IC2 LM35DP 1 32 Q1 2SC3068 R1 680 IC1 LA2500 3 4 1 2 9 7 8 5 6 D3 1N4004 D4 1N4004 D11N4004 D21N4004 R23 2.2/1W R24 2.2/1W Q19 2SA1302 R25 0.33/5W R2

32、9 0.33/5W R30 0.33/5W R31 0.33/5W R32 0.33/5W R33 0.33/5W R34 0.33/5W R35 0.33/5W R36 0.33/5W R37 0.33/5W R38 0.33/5W R39100K R40100K Q20 2N5551 Q21 2N5401 Q22 2N5401 Q23 2N5551 Q24 2N5401 Q25 2N5551 Q26 2N5401 Q27 2N5551 R61 NOT USED R45 15K R46 15K R62 NOT USED R47 100K R48 100K R49 15K R50 15K R5

33、3 270K C11 0.01/50V R54220 C9 0.001/50V R55220 C10 0.01/50V R56 1K C8 0.001/50 R63 470 R64 470 C1 100uF/6.3V C2 0.1uF/100V Q10 2SC3281 R65 22K Q12 2SC3281 R66 18K Q14 2SC3281 Q16 2SC3281 R67 18K Q18 2SC3281 R68 22K Z1 1N5925A Q13 2SA1302 Z2 1N5941A Q11 2SA1302 Z3 1N5941A Q15 2SA1302 Z4 1N5925A Q17 2SA1302