Smps Circuit - Panasonic SC-HC37GN Service Manual

14.10. SMPS CIRCUIT

1 2 3
SCHEMATIC DIAGRAM - 9
A
I I
SMPS CIRCUIT
B
C
P1700
B 18V 7
TO
18VGND 6
MAIN CIRCUIT
18V 5
(CN1100)
18VGND 4
R1707
IN SCHEMATIC
REGION 3
10K
DIAGRAM - 6 PCONT(ECOMODE) 2
BURST SW 1
D
E
Q1700
B1ABGC000001
F
PCONT SWITCH
R1725
22K
R1727
100K C1716
0.01
G
H
NOTE: " * " REF IS FOR INDICATION ONLY
1 2 3
4 5 6
: +B SIGNAL LINE
ZA1701* C1710
HEATSINK F1BAF471A013
470P
G1 G2
T1700
G4DYZ0000059
D1700
B0ABSM000008
MAIN TRANSFORMER
12
1 2 3
11
10
9
8
C1703
7
25V1000P
C1713
220P R1717
1.2K
Q1701
R1701
DSA500100L
1.5K
R1706
STANDBY SWITCH
22K
C1709
C1714
0.1
0.1
C1719
0.47
R1711 R1705 R1716
R1710 R1703
10K 10K 390K
47K 3.3K
QR1700 4 3
R1728
8.2K
B1GBCFJJ0051
STANDBY CONTROL
C0DBZMC00006
SHUNT REGULATOR
R1729
22 R1730 1 2
6.8K
C1704
1000P
1 2 3
ZJ1702
4 5 6
7 8 9
D1701
B0EBNR000049
1
2
C1702
0.22
3
1 4
C1705
R1704
4700P
33K
2
R1708
3
22
D1703
B0EAKT000063
5
6 L1700
R1700 D1708
G1C100K00019 DA22F2100L
4.7
IC1700
C0DACYY00012
SWITCHING REGULATOR
8 7 6
D D D
C1720
10
PC1701
B3PBA0000503
S/OCP VCC GND
FEEDBACK
1 2 3
1 4
2 3
IC1701
C1701
C1708 R1718
50V10P 1000P 22
7 8 9
111
10 11 12
L1702
G0B183E00004
Z1752
ERZV10V511CS
R1726 2 1
1.5M
C1725
F1
R1724 0.15 T2A 250V
3 4
1.5M
TH1701
D4CAA5R10001
C1727
C1728
F1BAF1020020
F1BAF1020020
1000P
1000P
C1706
400V100
1 2 3
ZJ1701
5
D
FB/
OLP
4
C1700
390P
C1715
0.1
C1712
0.1
R1702
6.8K
10 11 12
13 14
A
B
K1700*
P1751
AC IN
110V ~ 240V ...GS/GSX/PU
50/60Hz
220V ~ 240V ...GN
50Hz
K1701*
C
D
E
F
G
H
SC-HC37GN/GS/GSX/PU
SMPS CIRCUIT
13 14