Smps Circuit - Panasonic SA-BT235P Service Manual

17.4. SMPS Circuit

1 2 3
SCHEMATIC DIAGRAM - 30
A
D
SMPS CIRCUIT
B
C
C
TO
D-AMP CIRCUIT
(CN5400)
IN SCHEMATIC
DIAGRAM - 28
D
E
E
TO
POWER CIRCUIT
(CN2916)
IN SCHEMATIC
DIAGRAM - 32
E
TO
POWER CIRCUIT
F
(CN2917)
IN SCHEMATIC
DIAGRAM - 32
A
G
TO
MAIN(MICON)
CIRCUIT (CN2004)
IN SCHEMATIC
DIAGRAM - 20
H
1 2 3
4 5 6
: +B SIGNAL LINE : -B SIGNAL LINE
D5810
B0ACCK000005
DCDET
QR5862
B1GBCFGG0030
DC DETECT
JW1*
+51V 6
+51V 5
GND 4
R5801
GND 3
100
FAN_GND 2
FAN_13V 1
DC_18V
CN5802
G3 G2
DC12V 3
GNG 2
DC18V 1
G4 G1
CN5803
G3 G2
DC5V 3
GNG 2
GNG 1
G4 G1
JW2*
POWER_CONT 10
PCONT
PCONT 9
DC_18V
DC18V 8
DC12V 7
PGND 6
GND
GND 5
DC5V 4
DCDET
DCDET 3
SYS5V
SYS6V 2
SYNC
SYNC 1
4 5 6
7 8 9
D5802
D5811 D5714
B0HBSM000054
HEATSINK*
B0BC5R1A0266 B0BC027A0264
G1 G2
1 2 3
R5862
2.2K
C5791 R5864 R5863
10 5.6K
C5805 C5841 C5840
R5833 R5809 R5832
8.2K 680 8.2K 63V1000 0.01 0.01
D5703
R5866 C5824
B0BC020A0267
220 25V220
R5729
47K
C5827 0.01
D5805
B0EAMM000057
C5813 C5811 0.01
35V330
D5803
C5826 C5800
B0HFRJ000012
0.01 0.01
3 2 1
ZJ5703
R5807
680
R5802
18K
C5817 R5803
6800P 5.6K
C
1
IC5801
R5814 R5804
R5806
100K 120K
22K C0DABFC00002
3
C5818
A SHUNT REGULATOR
4700P
2
R
R5805
6.8K
Q5863
B1ABGC000001
R5819
R5728
SWITCH 22
22K R5817
2.2K
R5861 C5869
C5828 R5818
100K 0.01 6.3V2200 22
7 8 9
117
10 11 12
T5701
ETS42BM1GGAC
MAIN TRANSFORMER
9
2 1
0V DRAIN
11 8
D5702
B0ZAZ0000052
7
12
3
13 6
R5702
33K
14 5
+55V R5703
33K
4
15
VIN
+FAN 18V
GND
16
R5720 D5712
22 B0EAMM000057
VCC
17 2
+18V
18 1
PC5720
B3PBA0000402
FEED BACK
R5730
1K
1 4
R5808
2.2K
2 3
D5707
B0BC6R2A0266
1/2 2/2
SA-BT235P SMPS CIRCUIT
10 11 12
13 14
P1
7
6
5
4
3
2
1
TO SMPS
SECTION (2/2)
13 14