760A/760D/760N STEREO AUDIO MONITOR LOW VOLTS POWER SUPPLY 6
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
J5
CAUTION: ALL CIRCUITRY TO THE
MOUNTING

LINE RECTIFIER

AND FILTER

L4
1MH
LEFT OF THE ISOLATION
BOUNDARY IS AT POWER LINE
POTENTIAL AND REQUIRES
AN ISOLATION TRANSFORMER
TO SERVICE.
BOUNDARY
ISOLATION

CLAMP

NOT INSTALLED
C62 C63

OUTPUT FILTERS

L3
4.7UH
CR10
C36
560UF
C38
560UF
W3
0 OHM
W4
0 OHM
+15A
+15V
+40V
-15A
-15V
C30
560UF
C29
560UF
L2
4.7UH
CR12
R67
10.0
CR11
10
8
14
13
12
11
9
2
1
5
6
7
T3
CR14
RV1
CR18
C44
.47UF
R93
150K
R94
150K
R91
100K
R92
100K
DS4
R102
8
C54
330UF
CR23 CR22
CR21
CR24
90-250V
C56
.022UF
F1
2A
C57
.068UF
R89
5
J10
REAR
PANEL
J6

OUTPUT UV

SHUTDOWN

5
6
7
U3B
LM393
R97
2.00K
+5VC
C47
.47UF
CR25
CR19

PULSE

WIDTH

MODULATOR

COMP
1
VFB
2
ISEN
3
RT/CT
4
REF 8
VCC 7
OUT 6
GND 5
U5
UC3842
+5VC

SWITCHER

MOSFET

C49
.1UF
C42
560UF
C50
.47UF
CR27

SNUBBER

C53
100PF
CR17
NOT INSTALLED
C55
C32
560UF
L1
4.7UH
C31
560UF
C35
560UF
CR13
+5V
W1
0 OHM
W2
0 OHM
+40VA
+5D
+5V
C33
10UF
C37
560UF
NC
J4
CONNECTS
A3
MAIN
BOARD
+100V
+5V
+15V
+40V
TO J153
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
J4
ZAXIS
FOCUS
J4-1
A4
A4
D5
+5V
Q11

ERROR

R14
10.0
VR3
5.1V
R13
100

H

BOUNDARY
ISOLATION
Q9
R86
0.51
R90
2.4K CR20
Q9
R87
22.1
R82
4.99K
R101
49.9
R81
178
NC
NC
C
L
1
1
CX
6
RX
7
B
10
A
9
Q12
Q 5
U4B
74LS221
R88
2.00K
+5VC
R79
49.9K
C51
.01UF
C58
200PF
C59
.1UF
R96
49.9K
R75
4.99K
+5VC
R95
4.53K
R78
3.74K 3
2
1
8
4
U3A
LM393
R74
4.99K
C43
.47UF
C52
.01UF
+5VC +5VC

FEEDBACK

TRANSFORMER

DRIVER

NC
NC
NC
C45
.47UF
C48
200PF
C
L
3
VCC 16
GND 8
CX
14
RX
15
B
2
A
1
Q 4
Q13
U4A
74LS221
R80
2.00K
+5VC
+5VC
+5VC
R77
100
GDS AMPLIFIER
C41
.47UF
C39
.1UF
+5VC
Q8
CR29
1
2
4
3
T2 CR15
C61
470PF
R62
100
VR1
431C
C40
4700PF
R98
10.00K
CR26
+40V
VR4
10V
R71
221K
R68
178
+5V
R69
10.00K
R70
10.00K
R99
100K
+5V
+5V ADJUST
R85
100K
POWER
FRONT
PANEL
(OPEN = ON)
-15V
S1
1
2
1
2
J2
TP1
LINE SIDE COMMON
SECONDARY GROUND
(CHASSIS GROUND)
R72
10.0
R73
10.0
TP2
C46
.01UF
+5VC
+5VC
CR16
Q7

PEAK

DETECTOR

R83
10.00K
+5VC
R76
3.74K
R84
18.7K
C60
.1UF
PART OF A1 POWER SUPPLY

CROWBAR

1

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