Smps Circuit - Panasonic SA-PT460 Service Manual

SA-PT460EB / SA-PT460EG

19.7. SMPS Circuit

1 2 3
SCHEMATIC DIAGRAM - 16
A
H
SMPS CIRCUIT
B
DCDET
H5801*
+30V_SENSE
+30V_SENSE 8 FAN_18V
F
+30V_SENSE 7
TO
GND 6
D-AMP CIRCUIT
C5832
GND 5
(CN5500) 0.1
-30V_SENSE 4
IN SCHEMATIC
-30V_SENSE
-30V_SENSE 3
DIAGRAM - 13
C
2
FAN_GND
FAN_18V
FAN_18V 1
-30V_SENSE
+30V_SENSE
D
DCDET
CN5802
AM_BP
AM_BP 11
PCONT
PCONT 10
DC_18V
DC18V 9
G AM_BP
DC_18V
TO
DC18V 8
POWER SUPPLY C5812 0.1
+18V.-12V_GND 7
E
CIRCUIT (CN2004*)
+18V.-12V_GND 6
0.1
C5815
IN SCHEMATIC
-13V 5
-13V
DIAGRAM - 14 W5801 0
DCDET 4
DCDET
SYS_GND 3
-13V
C5896 0.1
SYS6V 2
SYS6V
SYNC 1 FAN_18V
SYNC
F
K2 0
+30V_SENSE
G
-30V_SENSE
SYS6V
PCONT
H
1 2 3
4 5 6
: +B SIGNAL LINE : -B SIGNAL LINE
D5809
Q5861 - Q5862
MA2J11100L
B1ABCF000176
TRANSFORMER TEMP DETECT
Q5860
2SA207700L
TRANSFORMER
C5869
TEMP DETECT
0.1
R5800
12K
R5801
10K
QR5801
C5800
1
0.01
UNR221400L
2
DC DETECT
D5807 3
MA2J11100L
R5825
1K
Q5803
2SC3940ARA
SWITCHING
W5804
IC5801
C0DABFC00002
SHUNT REGULATOR
1
3
2
B1ABCF000176
D5806
MAZ80750ML
4 5 6
7 8 9
D5801
B0HBSM000043
1 2 3
T5701
ETS42BN1A6AD
MAIN TRANSFORMER
10
-30V DRAIN
11
AMPGND
12
13
14
+30V
15
+FAN 18V
VIN
GND
3 2 1
16
ZJ5801 +18V VCC
17
D5803
B0HFRJ000012
D5802
18
B0HBSM000043
-12V
2SC3940ARA
LIMITING SWITCH
D5805
B0EAMM000057
B1ABCF000176
LIMITING SWITCH
R5730
1K
D5725
B0BC6R100010
PC5720
B3PBA0000402
R5809 R5807
330 330
0 W5803 0
1 4
W5805 0
2 3
FEED BACK
Q5802
PC5701
B3PBA0000402
FEED BACK CONTROL
1 4
2 3
FEED BACK
QR5810
B1GBCFLL0037
INVERTER
7 8 9
112
10 11 12
9
R5703 R5702
100K 100K
8
3
7
6
1 2
5
4
3
2
R5720
22
1
D5726
B0EAKM000117
D5721
MAZ81800ML
Q5720
D5729
Q5720
B0EAMM000057
CURRENT
R5721 D5728
MA2J11100L
10K
Q5722
D5724
C5720 D5727
MA2J11100L MA2J11100L
CURRENT
0.1
R5725
D5722
0
B0BC019A0007
C5728
1000P
C5700
F1BAF1020020
1000P
3 2 1
ZJ5803
1/2 2/2
10 11 12
13 14
1
2
3
TO SMPS
SECTION (2/2)
4
R5732
100
IC5701
C5HACYY00003
SWITCHING REGULATOR
7 OCP/BD
6
FB
5 OLP/SS
C5730
50V1
4 VCC
GND
3
S
2
C5737
470P
1 D
R5726 0.82
7
SA-PT460EB/EG SMPS CIRCUIT
13 14