Panasonic SA-VK725DGC Service Manual - Page 23
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3.3.
(I) Transformer Circuit
SCHEMATIC DIAGRAM - 25
TRANSFORMER CIRCUIT
AC_IN
15
+VccH
14
+VccH
K9810
13
ERDS1FVJ120T
ERDS1FVJ120T
+VccL
12
AC_GND
11
AC_GND
TO
10
-VccL
POWER
9
-VccH
CIRCUIT
8
(H9500) ON
-VccH
7
SCHEMATIC
SUB+B
6
DIAGRAM - 23
DGND
5
D+5V
4
DVD_AC
3
DVD_PCONT
2
DGND
D9501
1
B0AACK000004
CN5804
H9502/
W9502
TO
SUB+BGND
MAIN CIRCUIT
1
(CN2814) ON
2
SCHEMATIC
D+5V
3
DIAGRAM - 12
C9515
6.3V1000
L9500
G0ZZ00001930
R9513
330
R9512
C9533
3.9K
6.3V1
R9514
1K
FL_GND
7
FL2
TO
6
FL1
PANEL CIRCUIT
5
(H6800) ON
PCONT
4
SCHEMATIC
SYS6V
3
DIAGRAM - 20
SYNC
2
-VP
1
CN9500
2SB0621AHA
-VP REGULATOR
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R9517
22K
K9811
K9812
ERDS1FVJ120T
R9836
4.7
R9515
1K
IC9500
C0DAAMH00010
DC - DC CONVERTER
5
4
3
2
1
R9511
C9507
C9514
1K
100P
25V220
R9502
R9501
R9500
10
10
10
D9513, D9514
B0EAKM000126
C9517
D9516
D9514
50V10
B0BA03100002
C9512
50V47
R9519
150
C9505
R9520
D9513
0.01
4.7K
R9521
4.7
Q9503
Q9502
B1AAGC000007
REGULATOR
C9503
R9505
R9503
1000P
1.2K
820K
Q9501
2SD21370PA
REGULATOR
B0EAKM000125
C9502
D9511
R9504
0.01
B0EAKM000125
1.5K
D9510
C9508
B0AACK000004
D9515
10V47
B0BA7R000005
: +B SIGNAL LINE
: -B SIGNAL LINE
D9504
B0FBAM000009
C9501
0.1
10
11
12
1
2
3
4
13
14
15
16
17
R9508
1
R9509
1
R9510
1
R9522
1
R9507
1
D9522 - D9529
R9516
B0EAKM000126
1K
Q9504
D9508
B0EAKM000125
Q9504
B1ACKD000004
POWER SUPPLY SWITCH
FP9500
C9509
1000
50V47
RL9500
K6B1AE00015
2
1
4
3
Z9500
ERZV10V511CS
D9500
B0AACK000004
C9511
25V470
T9501
G4C2AAJ00005
C9504
D9509
0.01
C9510
25V470
R9518
3.3K
B1AAGC000007
PCONT SWITCH
23
T9500
G4C7AGK00008
8
7
9
5
1
3
6
4
2
S5950
VOLTAGE SELECTOR
1
2
3
4
5
6
FP9501
4000
C9506
0.01
F1
250V 3.15A
FC2
FC1
JK9500
Q9500
SA-VK725DGC
A
B
A: 220-240V
B: 110-127V
A
B
AC IN
110-127V/
220-240V
50/60Hz