Panasonic SA-PT550GCP Service Manual page 106

SA-PT550GCP
1 2 3
SCHEMATIC DIAGRAM - 14
A
I
SMPS CIRCUIT
:+B SIGNAL LINE
B
DCDET
CN5801
+30V_SENSE
+30V_SENSE 8 FAN_18V
H
+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 - 13
FAN_18V
FAN_13V 2
FAN_GND 1
C
C5823
0.1
-30V_SENSE
+30V_SENSE
D
DCDET
CN5802
AM_BP 11
PCONT
PCONT 10
DC_18V
DC18V 9
B DC_18V
TO DC18V 8
C5812 0.1
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
SYNC 1 FAN_18V
SYNC
F
+30V_SENSE
W5009
0
W5007
0
G
W5010
0
-30V_SENSE
SYS6V
PCONT
H
1 2 3
4 5 6
:-B SIGNAL LINE
Q5861 - Q5862
B1ABCF000176
TRANSFORMER TEMP DETECT
D5801
B0HBSM000043
1 2
C5869
0.1
Q5860
B1ADCF000001
TRANSFORMER TEMP DETECT
W5002
0
R5800 R5801
10K 12K
W5706
0
QR5801
C5800
0.01
B1GBCFJN0033 3 2
DC DETECT
ZJ5801
D5802
B0HBSM000043
W5012
0
R5809
330
IC5801
C0DABFC00002
SHUNT REGULATOR
1
W5006 Q5802
Q5802
0
B1ABCF000176
3
FEED BACK CONTROL
2
D5806
B0BC7R500001
4 5 6
7 8 9
3
T5701
EST42BN1A6AD
MAIN TRANSFORMER
10 9
-30V VIN
11
8
12
7
AMPGND
13 6
14
5
+30V
15
4
+FAN 18V
DRAIN
GND
1
16 3
D5731
+18V
B0EAMM000057
17
2
R5720
22
18
1
-12V
Q5720
2SC3940ARA
CURRENT
LIMITING SWITCH
D5805
B0EAMM000057
Q5722
B1ABCF000176
CURRENT
LIMITING SWITCH
R5730
1K
B0BC01700015
D5725
B0BC6R100010
PC5720
B3PBA0000402
R5807
330
1 4
2 3
FEED BACK
PC5701
B3PBA0000402
1 4
2 3
FEED BACK
QR5810
B1GBCFLL0037
INVERTER
7 8 9
106
10 11 12
R5706 R5703
R5702
68K 68K 68K
3
1 2
Q5721
B1ADCF000001
SWITCHING
D5726
B0EAKM000117
D5721
B0BC010A0007
D5729
Q5720 B0EAMM000057
R5721 D5728
10K B0ACCK000005
Q5722
C5720 D5724 D5727
B0ACCK000005 B0ACCK000005
0.1
D5722 R5725
0
C5728
1000P
R5728 100K
C5700
F1BAF1020020
R5729 10K
1000P
3 2 1
ZJ5803
1/2 2/2
SA-PT550GCP SMPS CIRCUIT
10 11 12
13 14
I1
I2
I4
TO SMPS
SECTION (2/2)
I5
R5732
100
IC5701
C5HACYY00003
SWITCHING REGULATOR
7 OCP/BD
W5000
0
6 FB
5 OLP/SS
C5730
50V1
4
VCC
GND
3
2 S
C5727
470P
1 D
R5726 0.82
I8
I6
I7
13 14