Page 1
A
INPUT
B
INPUT
SYMBOL
1
2
3
1
2
3
LLLLAAAASSSSTTTT UUUUSSSSEEEEDDDD LLLLIIIISSSSTT
CHANNEL A CHANNEL B
A
C
D
P
Q
R
Z
48
1-19 51-69
1-5 51-55
1-4 51-54
1 51 100-101
C1
+
47µF/25V
C2
+
47µF/25V
C51
+
47µF/25V
C52
+
47µF/25V
51-801-31
R1
22K
R2
22K
R51
22K
R52
22K
TT
L
E
N
3.
27pF
6
!-
A4.B
+
5
R4
22K
3.
27pF
6
!-
A5.B
+
5
R54
22K
FUSE
.75 AGC
POWER
100-107
100-104
100-106
100-101
C17
R3
22K
C67
R53
22K
TRI AMP
DATE:
DATE:
REV:
REV:
DATE:
ON/OFF
1
2
3
1
2
3
1
2
3
1
2
3
1JAN81
13FEB91
A
HI OUT
A
LO OUT
B
LO OUT
B
HI OUT
HI FQ LEVEL
P4
50K
R27
2
!-
A1.A
15K
R12
C8
.0033
C58
.0033
C104
47µF
C105
47µF
C6
.027
C7
.0033
R13
4
3.3K
C56
.027
C57
.0033
R63
12
3.3K
R102
47Ω
R103
47Ω
R104
47Ω
R105
47Ω
S1 (10X SWITCH)
P2.B
50K
S51 (10X SWITCH)
P52.B
50K
TO A1, A2, A4: PIN 8
TO A3: PIN 11
TO A5, A7, A8: PIN 8
+
C106
47µF
C107
47µF
TO A6: PIN 11
+
TO A5, A7, A8: PIN 4
TO A6: PIN 7
TO A1, A2, A4: PIN 4
TO A3: PIN 7
+16V
+16V
-16V
-16V
C11
.0033
1
!TL075
+
2
A3
R14
10K12K
HI FQ LEVEL
R76
15K
C61
.0033
8
!TL075
+
9
R64
10K
+
+
P2.C
50K
P52.C
50K
Q100
TIP31
Q101
TIP32
Z100
16V
Z101
16V
10K
6
!TL075
+
5
FREQ ADJ
R62
10K
14
!TL075
+
13
FREQ ADJ
+
+
C3
.027
R10
10K
R15
R60
10K
C5
.0033
C55
.0033
+
+
C4
.0033
R11
10
3.3K
C53
.027
C54
.0033
R61
4
3.3K
R100
470Ω
C102
10µF
50V
C103
10µF
50V
R101
470Ω
CH A GAIN
P1
50K
R5
2
12K
R55
12K
.02
600V
!-
A4.A
+
3
CH A GAIN
P51
50K
2
!-
A5.A
+
3
OFF / ON
1
1
7
7
120
240
1
2
3
4
R7
22K
R6
22K
R57
22K
R56
22K
R8
22K
14
!TL075
+
13
1
!TL075
+
2
5
6
7
R58
22K
A6
12
3
D100
POWER
LED
R9
3.3K
R59
3.3K
D102
D101
P2.A
50K
P52.A
50K
R106
1.5K
D104
D103
8
9
6
5
C100
220µF
50V
C101
220µF
50V
!TL075
+
!TL075
+
1
+
3
C9
.027
C10
.0033
R16
3
10K
P54
50K
2
!-
A8.A
1
+
3
C59
.027
C60
.0033
R65
10
10K
3. ADDED AS SECONDARY.
2. ALL DIODES ARE 1N4003 (EXCEPT AS NOTED).
1. ALL CAPACITORS IN MICROFARADS (EXCEPT AS NOTED).
NOTES: UNLESS OTHERWISE SPECIFIED
C18 27pF
3.
R28
6
22K
5
R26
10K
R25
10K
R24
10K
LO FQ LEVEL
P3
C12
2
+
47µF
3
3.
C68 27pF
R77
6
22K
5
R75
10K
R74
10K
R73
10K
LO FQ LEVEL
P53
C62
+
2
47µF
3
22K
!-
A1.B
+
D1
D2
D3
!-
A2.A
+
!-
A8.B
+
D51
D52
D53
!-
A7.A
+
R29
50K
R78
22K
50K
R31
47Ω
R30
7
47Ω
+16V
D4
R17
10K
R18
1
47Ω
R19
22K
R80
47Ω
R79
7
47Ω
+16V
D54
R66
10K
R67
1
47Ω
R68
22K
C
DRAWN BY:
APPROVED:
PCB
NO:
ASSY.
NO:
REVISED BY:
C16
+
47µF
25V
C15
+
47µF
25V
R23
D5
470Ω
R22
1K
C193.27pF
R20
22K
6
!-
A2.B
+
5
C66
+
47µF
25V
C65
+
47µF
R72
470Ω
R71
1K
C693.27pF
R69
22K
6
!-
A7.B
+
5
ARVIN
47µF/25V
7
25V
D55
Q51
2N3391
47µF/25V
7
Q1
2N3391
C13
+
R21
47Ω
C63
+
R70
47Ω
PEAK
C14
+
47µF/25V
PEAK
C64
+
47µF/25V
12340 World Trade Drive
San Diego, CA 92128
(858) 487-1600
FAX 487-6629
XC1000
30-1000-4 A
80-1000-4 E
C. MCEUEN
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