Crest PFA600 free download

File name Crest-PFA600 pwramp.pdf

Schematic set PFA600 Power amplifiers 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 8 7 6 5 4 3 2 1 J3 1 2 3 4 5 6 7 8 9 10 11 12 13 26-48-1136 RELAY CH. B RELAY CH. A RELAY GROUND RELAY GROUND LED GROUND ACTIVE CH. B TEMP/DC CH. B SIGNAL CH. B CLIP CH. B CLIP CH. A SIGNAL CH. A TEMP/DC CH. A ACTIVE CH. A D D R42 91/10W R5 2.7K R7 100K R9 2.7K R10 2.7K R8 100K R6 2.7K R3 10K Q1 2N5551 C6 100/25V Z3 1N5344 2N5551 Q2 Z4 1N5344 R4 10K 0.1/100V Q3 2N5551 C5 Z5 1N5344 2N5551 Q4 C J1 A/B MUTE SIGNAL CH. B CLIP CH. B CONTROL V. CH. B LIMIT CH. B MUTE CH. B AMP OUT CH. B TEMP SENSOR + CH. B TEMP SENSOR OUT CH. B TEMP SENSOR GND CH. B GROUND GROUND GROUND FAN GROUND FAN + 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 D3 1N4148 D5 1N4148 D7 1N4148 C1 1/50V D9 1N4148 D8 1N4148 C2 1/50V D6 1N4148 D4 1N4148 D2 1N4148 J2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 +24V. OUT SIGNAL CH. A CLIP CH. A CONTROL V. CH. A LIMIT CH. A MUTE CH. A AMP OUT CH. A TEMP SENSOR + CH. A TEMP SENSOR OUT CH. A TEMP SENSOR GND. CH.A GROUND GROUND GROUND +24V. IN CH. A +24V. IN CH. B C R11 5K/5W TR1 470/6.3V C4 C3 470/6.3V R12 5K/5W R13 MAC97A 10K C8 100/25V D11 D10 100/25V Z1 1N5927 Z2 1N5927 C7 TR2 MAC97A R14 10K D21 1N4004 D20 26-48-1156 26-48-1156 1N4004 1N4148 1N4148 R19 D13 1N4148 7.5K R21 1K R23 1K/1% R24 1K/1% R22 1K R20 7.5K R18 R16 2.7K B D12 1N4148 13 2.7K IC1E LM614 D18 1N4148 15 14 D14 16 12 11 1N4148 13 B 2 3 1N4148 7 IC1B LM614 9 + 5 + 1 IC1A LM614 4 R38 R25 47K MPSA75 Q5 R43 15 R27 4.3K 100K + R17 2.7K R15 2.7K R29 10K D17 1N4148 R33 4.7K R37 2.2K R34 4.7K D22 1N4004 A 8 7 6 - D15 - D19 1N4148 6 8 + - 10 IC1C LM614 IC1D LM614 R39 100K R26 47K R31 390K R35 499/1% R36 499/1% R32 390K D16 1N4148 R28 4.3K R44 15 R30 10K Q6 MPSA75 D23 1N4004 A CREST AUDIO INC. 150 Florence Ave. Hawthorne, NJ 07506 Title PFA600 DISPLAY/PROTECT DRIVER Size C Date: 5 4 3 2 Document Number 21C1169 Tuesday, June 27, 2000 Sheet 1 Rev 1 of 0 8 7 6 5 4 3 2 1 D D J1 1 2 3 4 5 6 7 8 PL08 VR2 C J3 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 26-48-1175 R1 R2 680/10W 680/10W VR1 PTC15XD 5KAP PTC15XD 5KAP J2 1 2 3 4 5 6 7 8 PL08 C BAR1 B 1 2 3 4 5 6 72706-C-50-81 B .25 LUG CREST AUDIO INC. A 150 Florence Ave. Hawthorne, NJ 07506 Title PFA600 INPUT PCB Size A Date: 8 7 6 5 4 A Document Number 21A1171 Tuesday, June 27, 2000 3 2 Rev Sheet 1 of 1 1 8 7 6 5 4 3 2 1 R8 VCC+ D1 1N4148 Q1 2N5401 R3 R2 330K 10K 2N5551 C1 100/35V Q2 MPSA75 Q3 R36 C2 47/35V D3 1N4148 D2 1N4148 R32 1.0K/1% D13 1N4148 R33 R13 13 12 11 10 9 8 7 6 5 4 3 2 1 J2-M 26-48-1135 220K C13 VCC+ C3 0.1/50V C6 SIP1A 10K/0.2% D4 1N4148 D6 1N4148 6 5 D7 1N4148 D5 1N4148 C5 470pF 30pF SIP1B 48.7K/1% 7 + IC1B NE5532AN 8 3 2 ATTENUATION/MUTE R57 100 + 4 1 IC1A NE5532AN 14 R15 10K/1% C VCC+ R34 499/1% R35 1.0K/1% Z1 VCC+ D 100K R9 10K R6 10K R1 D 1N5