DTR-7.4
A
1
2
3
4
5
B
C
D
PRINTED CIRCUIT BOARD VIEW 7-2
CONST. VOLTAGE PC BOARD (NAPS-7708)
U23
BIAS SELECTOR CIRCUIT PC BOARD
(NAPS-7692)
U28
RL6901
RL6901
V
1
0
A
/12
5V
V
6907
N
C
P
S
2
5
137
F6902
C
U27
PRIMARY
CIRCUIT
PC BOARD
(NAPS-7691)
0202
P
90
22
10A/125V
S902
02
S
90
2
S
F901B
A
F901A
E
92
1
9
2
2
120V
220V
POPO
MP
P
+1
3
F901
F
4
0
5
J
5
4
P912
P912
R9R9
P
920
A
J
5418
J5410
0
J
YEL
HT
TRANS
91
91
3
T902
F901C
R
P
91
1
N
N
L
5
B
C950
C950
09
C950
C
C950
05
C9441
R944
R
R944
43
R944
R
44
R94
R
9402
2
R9
940
C9411
C9411
05
J6705
R9411
411
R94
9412
2
R9
941
8
C9508
C9C9508
440
TH1TH
H1
EE
TH2
H
T
2
EE
7
701
J6
01
1
F9501
34
4
R943
42
2
9
R9
944
4
41
R9
R944
R6902
R
2
-5
-18
V
+18V+18V
RLGNDRLGNDRLGND
C
NCPS-7708
AA
01A01A
J6741
1
J6741
+
J6721J6J6721
670
704
J6
9503
B
JL
JL
JL
3
6745
745
5
J6
J6746
746
J67
JL
J
J6747J6747J6747
777
27
27
777
20
3 30
1
17
20
0
2
30