Smps Circuit - Panasonic SA-XH201GW Service Manual

16.6. SMPS Circuit

1 2 3
SCHEMATIC DIAGRAM - 18
A
F SMPS CIRCUIT
B
CN5700
1
PCONT 10
DCDET 9
A PGND 8
TO
7
PGND
MAIN(MICON)
C
PGND 6
CIRCUIT (CN2004)
DC18V 5
IN SCHEMATIC
DC18V 4
DIAGRAM - 11
POWER_CONT 3
SYS3.3V 2
SYNC 1
10
D
E
E H5700
TO
+35V 4
D-AMP CIRCUIT
+35V 3
(CN5400)
PGND 2
IN SCHEMATIC
PGND 1
DIAGRAM - 16
K572...GW
0
F
G
NOTE: " * " REF IS FOR INDICATION ONLY
H
1 2 3
4 5 6
: +B SIGNAL LINE : -B SIGNAL LINE
QR5862
B1GBCFGG0030
DC DETECT
PCONT
PGND
R5864
220
SYS3.3V
SYNC
R5801
100
C5817
6800P
R5814
100K
R5805
6.8K
4 5 6
7 8 9
D5802
B0HBSM000056
HEATSINK*
G1 G2
1 2 3
R5862
3.3K
T5701
ETS61BA126AD
MAIN TRANSFORMER
10
R5832 C5806 C5805 C5840
GND
8.2K 1 0.01
50V820
11
12
13
R5809 R5866
680 0 14
+35V
15
GND
16
C5813 C5811 0.01
35V330
17
+21V
D5803
B0HFRJ000012
18
C5826 C5800
0.01 0.01
3 2 1
ZJ5703
R5802
10K
K
C2902
R5806
IC5801
15K 56P
R5804
82K A C0DAZYY00039
C5818
SHUNT REGULATOR
0.1
R
7 8 9
96
10 11 12
2 1
9
D5702
B0ZAZ0000089
8
3
7
6
R5702
100K
D5704
5
R5703 C5713 DZ2J200M0L
100K 0.01
4
VIN
Q5720
B1ABMG000008
R5720 D5712
R5722 D5706
22 B0EAMM000057 VOLTAGE REGULATOR 2.2K DA2J10100L
VCC
2
R5721
10K
D5710
1
GND B0ECFR000003
C5720
100P
D5705
DZ2J200M0L
C5721
220P
D5708
DA2J10100L
PC5720
D5703 FEEDBACK
R5807
DZ2J062M0L
680
1 4
R5803 R5729 R5808 C2903
220
47K 2.2K 1000P
2 3
1/2 2/2
SA-XH201GW SMPS CIRCUIT
10 11 12
13 14
P1
7
6
5
C5726 R5725 C5722
50V10 47K 820P
4
3
2
R5730
1K
1
D5707
DZ2J062M0L
TO SMPS
CIRCUIT (2/2)
13 14