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TEMP 'A' R123 10K 3 IGM 'A' 9 8 + 14 IC101C LM339 R101 4.7K 4 2 R105 100 1 IC102A LM358A

+ -

8

C101 1/50V
D

D

R118 100K 3

R124 10K R102 4.7K R103 2.7K R107 D102 1N4148 4.7K R108 1K Z101 PROT 'A' 1N5918A (5.1V) DATA 'A' C103 0.1/50V TEMP 'B' R125 10K 5 + -

CLIP 'A'

R119 10K

5 4

+ 12

A/CLIP 2 IC101A LM339

R122 220

R113 100 11 10 7 IC102B LM358A

+24V

+ -

13 IC101D LM339

R109 4.7K

6

C102 1/50V R111 2.7K

R126 10K R117 2.2K R120 100K R121 10K

R110 4.7K

7 6

+ -

B/CLIP 1 IC101B LM339 D107

D105 1N4148 VDDA 1N4001 D108 1N4001 VDDB

R115 4.7K

R116 1K

Z102 PROT 'B' 1N5918A (5.1V) DATA 'B' A/DATA AUX GND B/DATA A/+16V B/+16V A/-16V B/-16V 1 2 3 4 5 6 7

C

D109 1N4001 D110 1N4001 C105 0.1/50V C104 0.1/50V

VEEA

J3 26-48-1075 DATA & POWER CONN.

C

VEEB IGM 'B'

CLIP 'B' 34 V. AC

R5 2.7K F1 34 V. AC 3A/MINI BR1 RS202 C6 470/50V R3 10K Q1 2N5551

R7 100K R9 2.7K LED 3 SIGNAL

R8 100K

R6 2.7K

R10 2.7K 2N5551 LED 4 SIGNAL Q2 R4 10K

Q3 2N5551 LED 1 CLIP C5 0.1/50V LED 2 CLIP

2N5551 Q4

M5 44 V. OUT SIGNAL CH. A CLIP CH. A CONTROL V. CH. A LIMIT CH. A SPKR. RAIL CH. A MUTE CH. A TEMP SENSOR + TEMP SENSOR OUT TEMP SENSOR GND GROUND GROUND GROUND TRANSFORMER TEMP GND TRANSFORMER TEMP 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 26-48-1155

D3 1N4148

D5 1N4148

D7 1N4148

C1 1/50V

D9 1N4148

D8 1N4148

C2 1/50V

D6 1N4148

D4 1N4148

D2 1N4148

M6 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 27 V. IN SIGNAL CH. B CLIP CH. B CONTROL V. CH. B LIMIT CH. B SPKR. RAIL CH. B MUTE CH. B TEMP SENSOR + TEMP SENSOR OUT TEMP SENSOR GND. GROUND RELAY GROUND RELAY GROUND RELAY 1,3 RELAY 2,4

R11 5K/5W TR1 470/6.3V

C4 C3 470/6.3V

R12 5K/5W

B

B

R13 MAC97A 10K C8 100/25V D11 D10 100/25V Z1 1N5927A Z2 1N5927A C7 TR2 MAC97A

R14 10K

26-48-1155

1N4148

1N4148

D13 1N4148

LED 7 ACTIVE R15 2.7K

LED 5 TEMP/DC R17 2.7K

R19 5.1K

R21 1K

R23 750/1%

R24 750/1%

R22 1K

R20 5.1K LED 6 TEMP/DC R18 LED 8 ACTIVE R16 2.7K D12 1N4148 VR2 5KB

M8 3 2 1 26-48-1035

13

8

5KB

1 IC1A LM614 4

7 3 1N4148 IC1B LM614

R38 R25 4.7K MPSA75 Q5 R27 390 100K R31 R29 10K 390K D17 1N4148 R33 4.7K R37 2.2K R34 4.7K R35 499/1% R36 499/1% R32 390K D16 1N4148

9

26-48-1035

A

12-14-93 CHANGE CHANGE CHANGE CHANGE CHANGE NOTE 1 R23,R24 WI LL CHANGE TO 1K/1% WITH UL APPROVAL. R101,R109 R103,R111 R107,R115 R108,R116 Z 101,Z102 FROM FROM FROM FROM FROM 10K TO 4.7K. 2.2K TO 2.7K. 3.3K TO 4.7K. 2.2K TO 1K. 1N5913 TO 1N5918.

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5

IC1E LM614

14

5

+

+

3 2 1

VR1

13

M7

2

D15

D19 1N4148 6

D18 1N4148 15 D14 16 IC1D LM614 11 1N4148 12 + 10 IC1C LM614

2.7K

R39

100K R26 4.7K

R30 10K R28 390

Q6 MPSA75

A

CREST AUDIO 100 EISENHOWER DRIVE PARAMUS, NJ 07652 Size D Date:
4 3 2

Document Number 21D1977-xx Wednesday, May 17, 2000
1

Rev Sheet 0 of 0