![background image](http://html1.mh-extra.com/html/onkyo/dt9904s/dt9904s_service-manual_1636884030.webp)
12
3
1
23
4
5
6
A
B
C
D
E
A
B
C
D
E
F
U
503
LM
431A
C
515
104
L505 10u
H
/1A
C
506
223
L507
10u
H
/2A
L506 10u
H
/2A
R
K
A
!
!
!
R
510
4.7K
R
509
10K
R
508
3.3K
R
506 330
R
505
33oh
m
R
502
120K
/2W
R
503
39K
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U
502
2501
TC
502
47U
F/
50
TC
501
47u
F/
400V
D
505
H
ER
107
C
502
103/1K
V
C
503
101/1K
V
L503
FB
B
C
503
~400V
221
C
505 101
C
513 101
C
509
101
C
514 101
C
511
101
+9
V
C
504
104
TC
504
470u
F/
16V
TC
511
100u
F/
16V
TC
512
47u
F/
50V
TC
506
1000u
F/
10V
TC
505
1000u
F/
10V
TC
509
1000u
F/
10V
TC
510
1000u
F/
10V
D
508
H
ER
105
C
507
101
TC
503
470u
F/
16V
R
511
220R
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FB
4
GN
D
1
D
2
VCC
3
U
501
5L
0380R
R
507
1K
R
504
1M
IN
1
GND
2
OUT
3
U
504
LM
7805
TC
508
100u
F/
16V
SA
+5
V
D
510
H
ER
303
ZD
501
5.1V
D
506
H
ER
105
D
509
SR
303
D
511
H
ER
105
D
512
H
ER
105
+3
.3
V
2
3
4
6
7
10
11
9
12
13
14
15
16
T501
EI
28/8
TC
513
100u
F/
16V
D
502
1N
4007
D
503
1N
4007
D
501
1N
4007
D
504
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4007
C
508
104
C
510
104
-9
V
+5
V
ZD
502
9.1V
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R
512
10R
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AGN
D
OK
-21V
2 3 4
1
5 6
8 9 10
7
11 12 13
C
N
501
X
S13 2.0M
M
FL
+
FL
-
-9
V
+9
V
DE
T
GN
D
SA
+5
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GN
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-9
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GN
D
+3
.3
V
+5
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GN
D
+9
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SA
+5
V
GN
D
2 3 4
1
5 6
8 9 10
7
11 12 13
C
N
502
X
S13 2.5M
M
DE
T
OK AGN
D
OP
EN
OP
EN
OP
EN
B
C
501
~275V
104
L502
F501 T1
.6A
/250V
!
!
R
501
680K
2W
!
!
!
BCN5
01
~220V
IN
BCN5
02
SW
-SPST
L501
B
C
502
~275V
104
SA
+5
V
POWER BOARD SCHEMATIC DIAGRAM
28
Summary of Contents for DT9904S
Page 1: ...SERVICE MANUAL DT9904S...
Page 4: ...3 7 9 2...
Page 12: ...7 MPEG BOARD CHECK WAVEFORM 7 1 27MHz WAVEFORM DIAGRAM 7 2 IC5L0380R PIN 2 WAVEFORM DIAGRAM 10...
Page 29: ...FRONT SCHEMATIC DIAGRAM 27...
Page 31: ...POWER BOARD SCHEMATIC DIAGRAM 29...
Page 33: ...OK SCHEMATIC DIAGRAM 31...
Page 35: ...OUTPUT BOARD SCHEMATIC DIAGRAM 33...
Page 40: ...MIAN SCHEMATIC DIAGRAM 38...
Page 47: ...11 APPENDIX AM FM Tuner Specificadtion 45...
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