Smps Circuit - Panasonic SA-BTT775GA Service Manual

17.7. SMPS Circuit

1 2 3
SCHEMATIC DIAGRAM - 15
A
H
SMPS CIRCUIT
B
JW2
1
PCONT 10
DCDET 9
PGND 8
A
TO
GND 7
DIGITAL(MICON)
C
GND 6
CIRCUIT (CN2004)
DC18V 5
IN SCHEMATIC
DC18V 4
DIAGRAM - 2
POWER_CONT 3
SYS6V 2
SYNC 1
10
D
E
C JW1
TO
+35V 4
D-AMP CIRCUIT
+35V 3
(CN5400)
PGND 2
IN SCHEMATIC
PGND 1
DIAGRAM - 11
F
K5723...GA/PU
0
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
1
IP1
3A
2
C5802
100P
SYS6V
R5835
220
SYNC
Q5721
B1BACG000048
REGULATOR
R5801
100
C5817 R5802
6800P 10K
R5814 R5804
100K 82K
Q5863
R5819
22
B1ABGC000001
R5728
PCONT
22K
C5828
6.3V2200
R5861 C5869
100K 0.01
4 5 6
7 8 9
D5802
B0HBSM000056
HEATSINK*
G1 G2
1 2 3
R5862
2.2K
T5701
ETS61BA126AD
MAIN TRANSFORMER
R5834 R5809 R5832
1.5K 680 8.2K
C5805 C5840 C5841
GND
50V820 0.01 0.01
11
R5833
1.8K
12
13
R5866
14
0
+35V
D5801
15
DZ2J140M0L
GND
16
C5813 C5811 0.01
35V330
17
+21V
D5803
B0HFRJ000012
18
C5826
0.01
3 2 1
ZJ5703
D5703
B0BC6R2A0266
R5810
220
C
1
R5806 C5820
IC5801
15K 1000P
3 C0DABFC00002
A
C5818
SHUNT REGULATOR
0.1
2
R
R5805 C5819
6.8K 56P
R5817
2.2K
R5818
220
7 8 9
149
10 11 12
2 1
9
D5702
B0ZAZ0000052
8
3
7
R5702
6
100K
R5703 C5713 D5704
5
B0BC020A0267
100K 0.01
4
VIN
Q5720
B1BAAJ000003
R5720 D5712 D5706
REGULATOR R5722
22 B0EAMM000057 B0ACCK000005
2.2K
VCC
2
R5721
10K
D5710
1
B0ECFR000003
GND
C5720
100P
C5721
220P
D5705
B0BC020A0267
D5708
B0ACCK000005
PC5720
B3PBA0000503
FEEDBACK
R5807 R5730
680 1K
4
1
R5808 C5821
2.2K 1000P
2 3
D5707
B0BC8R2A0266
R5729
47K
1/2 2/2
SA-BTT775GA/PU SMPS CIRCUIT
10 11 12
13 14
P1
6
5
C5726 C5722
50V10 100P
4
3
2
1
TO SMPS
CIRCUIT (2/2)
13 14