Panasonic SA-PT750PL Service Manual page 109

1 2 3
SCHEMATIC DIAGRAM - 13
A
G
SMPS CIRCUIT
:+B SIGNAL LINE
B
DCDET
CN5801
+30V_SENSE
+30V_SENSE 8 FAN_18V
F
+30V_SENSE 7
TO
GND 6
D-AMP CIRCUIT
C5832
GND 5
(H5500)
0.1
-30V_SENSE 4
IN SCHEMATIC
-30V_SENSE
-30V_SENSE 3
DIAGRAM - 12
FAN_18V
FAN_13V 2
FAN_GND 1
C
C5823
0.1
-30V_SENSE
+30V_SENSE
D
DCDET
CN5802 W5803
0 AM_BP
AM_BP 11
PCONT
PCONT 10
DC_18V
DC18V 9
AM_BP
B
DC_18V
TO DC18V 8
0.1
C5812
MAIN CIRCUIT +18V.-12V_GND 7
(CN2004)
+18V.-12V_GND 6
0.1
E C5815
IN SCHEMATIC
-13V 5
-13V
DIAGRAM - 9
DCDET 4
DCDET
SYS_GND 3
-13V
C5896 0.1
SYS6V 2
SYS6V
FAN_18V
SYNC 1
SYNC
F
+30V_SENSE
G
-30V_SENSE
SYS6V
PCONT
H
1 2 3
4 5 6
:-B SIGNAL LINE
Q5861 - Q5862
B1ABCF000176
TRANSFORMER TEMP DETECT
W5802
0
W5804
0
Q5860
B1ADCF000001
TRANSFORMER TEMP DETECT
R5800 R5801
10K 12K
QR5801
C5800
0.01
B1GBCFJN0033
DC DETECT
W5801 ZJ5801
0
Q5803
2SC3940ARA
R5825
SWITCHING
1K
IC5801
C0DABFC00002
SHUNT REGULATOR
1
Q5802
3
2
D5806
B0BC7R500001
4 5 6
7 8 9
D5801
B0HBSM000043
1 2 3
T5701
ETS42BM15GAD
MAIN TRANSFORMER
10 9
-30V VIN
11
8
AMPGND
12
7
13 6
14
5
+30V
15
4
+FAN 18V
DRAIN
+18V
3 2 1
16 3
GND
17
2
D5802
18
B0HBSM000043 1
-12V
Q5720
2SC3940ARA
CURRENT
LIMITING SWITCH
D5805
3 2 1
B0EAMM000057
Q5722
ZJ5802
B1ABCF000176
CURRENT
LIMITING SWITCH
PC5720
B3PBA0000402
R5809 R5807
330 330
1 4
R5730
3.3K
2 3
FEED BACK
Q5802
B1ABCF000176
FEED BACK CONTROL
PC5701
B3PBA0000402
1 4
2 3
FEED BACK
QR5810
B1GBCFLL0037
INVERTER
7 8 9
107
10 11 12
R5703
R5702
33K 33K
3
1 2
D5731
B0EAMM000057
R5720
Q5721
22
B1ADCF000001
SWITCHING
D5726
B0EAKM000117
D5721
B0BC01700015
D5729
Q5720 B0EAMM000057
R5721 D5728
3.9K B0ACCK000005
Q5722
C5720 D5724
B0EAMM000057
0.1
L5721
D5722
J0JKB0000020
B0BC01600013
C5728
1000P
R5728 100K
C5700
F1BAF1020020
10K
R5729
1000P
3 2 1
ZJ5803
R5750
0
1/2 2/2
10 11 12
SA-PT750PL
13 14
G1
G2
G4
TO SMPS
SECTION (2/2)
W5806
0
G5
IC5701
C0DAAMH00004
SWITCHING REGULATOR
1 FB
2 S
3 D
C5727
3300P
4 VCC
5 GND
SA-PT750PL SMPS CIRCUIT
13 14