Integra DTA-9.4 Service Manual page 12

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SCHEMATIC DIAGRAMS-4
POWERSUPPLY CONTROL SECTION
1
NAPS-7790
U5
SWITCHING CONTROL PC BOARD
+5V
2SC2120Y
2 Q863
10
R873
Q864
2SA950Y
Q862
2SC2120Y
C861
330/35
2SC2120Y
Q867
10
R874
Q868
2SA950Y
2SC2120Y
TE
L 13942296513
3
Q804
2SA1312GR
4
Q803
2SC3324GR
Q802
2SC3324GR
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B
D893
STW26NM50
SFPB76
NSWT-3026
T851
Q861
R881
1 6 R891
2SA950Y
22/16
10 68
(1/2W)
2 5 (1/2W)
C863
3 4
R882 D894
NSWT-3026
10
Q865
T852
(1/2W) SFPB76
2SA950Y
1 6
22/16
R892
C865 2 5 68
(1/2W)
3 4
Q866
PRIGND
CAUTION:
Do not contact neither a tester, digital volt meter etc. on this point.
Don't touch by hand too.
Because, there is a danger that a circuit will break down.
+5V
Q805
2SA1312GR
C803
CAUTION
330J
R809
Q806
2SA1312GR
15K
C802
471J
14
1 2
C804
7 Q813
74HCU04
330J
C801 104
Q807
R808
2SC3324GR
15K
Q808
2SC3324GR
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8
From NAPS-7788
C891
B471K-KX
Q881
2
3
1
C882
DADC250V-225J
Q882
STW26NM50
2
3
1
Q Q
3 6 7 1 3
R814
R815
Q809
0 0
2SA1312GR
Q810
2SA1312GR
C805
100D
R812
18K
Q813
Q813
R811
10 9 8
11
4.7K
74HCU04
74HCU04
12 13
Q813
74HCU04
u163
.
C
2 9 9 4 2 8
From NAPS-7788
From NAPS-7788
(P801A/P801B)
P801C L902
NCH-1600
(DT-4020H) C920
QETJ5104KPP2CS
L903
NCH-1600
(DT-4020H)
UDD:168V UJJ:141V
PRIGND
Q883
STW26NM50
D895
R883 NSWT-3026
2
10
T853
SFPB76
3 (1/2W)
22/16
R893 4 3
C868
68
1
(1/2W)
5 2
6 1
Q884
STW26NM50
NSWT-3026
D896
T854
R884
C869
2
10
SFPB76
3 (1/2W)
4 3
22/16
R894
1
5 2
68
(1/2W)
6 1
1 5 0 5 8 2 9 9 4
Q816
RN2402
R827
1.5K Q813
R820
3
6.8K
74HCU04
R826
(NO USE)
1
1CK
2 1K
1J
3
4
1PR
C807
1Q
5
101J
R818
1Q
Q815 6
RN1402
4.7K
2Q
7
8 GND
m
co
DTA-9.4
D
9 9
D901
RBV-2506
+5V
Q871
2SC2120Y
Q869
2SA950Y
Q872
Q870
2SA950Y
2SC2120Y
Q875
2SC2120Y
Q873
2SA950Y
R872
10
Q876
2SA950Y
Q874
2SC2120Y
3
2 8 9 9
C808
150J
R821
27K
Q813
14
2
3 R8
1
4 5 6
10
74HCU04 Q814
7
74HC08
+5V
VCC 16
5
1CLR 15 R8
6
4
1
Q814
2CLR 14
74HC08
2CK 13
13
11 R8
2K 12 12
1
Q814
2J 11
74HC08
2PR 10
10
R8
8
9
1
2Q 9
Q814
74HC08