Sharp HT-DD5000W Service Manual page 19

HT-DD5000W
MAIN PWB-A (2/2)
A
POSISTOR
9
B
FRONT_L
5
A_GND
C
4
3
FRONT_R
SW
2
1
P_GND
5
D
PROTECT
14
+VL
4
–VL
3
FA_RLY
10
SW_RLY
13
A+1_V
1
M_GND
2
+VH
6
–VH
7
FAN_SW
15
E
SP_LEVEL
8
C_RLY
12
R_RLY
11
1
1
2 2
CENTER
REAR_R
3
F 3
A_GND
4 4
REAR_L
5 5
CNS702
BI702
G
H
NOTES ON SCHEMATIC DIAGRAM can be found on page 38.
1
1 2 3 4 5 6 7 8 9 10 11 12 13
R742 100(1/2W)
C702
4700/35
C751
4700/ 50
C752
4700/50
R792 100(1/2W) Fusible
1 2 3 4 5 6 7 8 9 10 11 12 13
2 3
Figure 18 SCHEMATIC DIAGRAM (3/12)
FM SIGNAL
IC701
STK41009
POWER AMP.
–37V
14 15 16 17
37V
Q704
C725
KTC3199 GR
0.022(ML)
R731
4.7K
R732
4.7K
R729
4.7K
D701
D702
1N4148 1N4148
R715 C714
1K 15P
C713
R716
15P
1K R717 56K
R702
R718
4.7
56K
(1/2W)
R701
4.7(1/2W)
C705
C720 2.2/50
0.22
(ML) C722
0.22(ML)
C721
0.22(ML)
C719
R721
0.22
4.7(1/2W)
(ML)
D740
1N4004
C771
0.22(ML)
R771
C769 C772
C770
4.7(1/2W)
0.22(ML)
0.22
0.22
(ML) R752
L752
(ML)
0.3µH 4.7(1/2W)
R751
C755
2.2/50
4.7(1/2W)
C754
R768
2.2/50
56K
R767
R766 56K
C763
1K
15P
R765
C764
1K
15P
D752
D751
1N4148 1N4148
R779
4.7K
R780
4.7K R782
R781
4.7K
4.7K
C776
C775
0.022
0.022(ML)
(ML)
14 15 16 17
IC751
STK41009
POWER AMP.
4
– 18 –
18
19 20 21 22 23 24 25 26
C707 C708 C709
47P
47P 47P
R705
390
C715
R719
15P
1K
C703
2.2/50
R720
56K
R707
56K
C704
2.2/50
R722
4.7
(1/2W)
C718 R708
0.001 56K
(ML)
R773
R772
4.7
4.7(1/2W)
(1/2W)
R757
56K
R762
R763
1K
R770
1K
56K
C753
2.2/50
C765
15P
R755
390
R756
R759
390
390
C757
47P
C759
C758
47P
47P
18 19 20 21 22 23 24 25 26
– –
–
5
Q705
KTC3199 G
R737
4.7K
0V
R736
4.7K
D703
1N4148
D704
1N4148
0V
R738
0V
56K
ZD671 D6
MTZJ5.1A
1N
R
2
C778
220/10
R791
56K
R788
56K
D754
R769
1N4148
1K
Q755
KTC3199 GR
R786
4.7K
R787
4.7K
C777
0.022
(ML)
6