13
00501B 2 2
PAS-4 PREAMPLIFIER
19 JULY 94 OFREV PAGE DWG#
U1
R216
C220
C219
.47 ohm
4700uF
25V
FWB1
600V
7812
3W
22uF
25V
35A
C221
470uF
25V
5
4
5
LINE
LEFT
6DJ8
V3
LINE
RIGHT
6DJ8
V6
U3
R220
C223
.47 ohm
7812
3W
22uF
25V
C224
470uF
25V
4
5
4
5
PHONO
LEFT
6DJ8
V2
PHONO
RIGHT
6DJ8
V5
PHONO
LEFT
12AX7
PHONO
RIGHT
12AX7
4
5
9
V1
4
5
9
V4
C205
33uF
450V
33uF
450V
C206
R203
332K
R204
1M
1W
R207A
5.1M
C211
400V
R202
470
4
R218
470
R219
470
BI-COLOR
GREEN
RED
3W
D1D2
D3 D4
D5 THRU D11
R210
470
ZD1
Q1 Q2
C213
.22uF
400V
Q3
R211
470
R212 R213
470
ZD3 ZD5 ZD7
C214
.22uF
400V
C215
.22uF
400V
R214 R215
470 470
ZD9 ZD11
Q4 Q5
C216
.22uF
400V
C217
.22uF
400V
C218
1uF
400V
Q6
R209
R208
C212
1M
1M
22uF
250V
D1 - D12 = 1N4007
ZD1, 3, 5, 7, 9, 11 = 1N5242B
Q1 - Q6 = IRF 830
R205
20K
R206
30K
C207
1000uF
6.3V
FRONT VIEWS
I G O G D S
7812 IRF 830
470
12V 12V 12V 12V 12V 12V
C208
2A /115V
1.4KV
.01uF
T1
SW7A
100
FAST
.01uF
1.4KV
BLOW
F1
100/115/230 VAC
50/60 Hz
BRN/WHT
BRN
WHT
BLK
1A / 230V
RED
C201
R201
C203
C204
I
G
O I
G
O
POWER
ENTRY
MODULE
(x 2)
ZD2
200V
ZD2, 4, 6, 8, 10, 12 = 1N5388B
5W
ZD4
200V
5W
ZD6
200V
5W
ZD8
200V
5W
ZD10
200V
5W
ZD12
200V
5W
R217
4.02M
C222
10uF
4 8
1
2
6
3
555
D12
K1
LED
U2
D13
25V
AC POWER
SW7B
OFFON
TIMER
1
16
(2) (1)
G
D
S
G
D
S
G
D
S
G
D
S
G
D
S
G
D
S
2A /100V
100V
0.0V
230V
115V
R207B
5.1M
C209
C210
1.0uF
1.0uF
1.0uF
1.0uF
400V
400V
400V
L
G
N
4
2
1
RED
GRN
GRN
-3.3V
SOURCE
421V @ 45mA
19.5V @ 1A
+300V
F
+300V
E
+300V
D
+300V
C
+300V
B
+300V
A
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