Panasonic SA-PT550GCP Service Manual page 107

15 16 17
SCHEMATIC DIAGRAM - 15
I
SMPS CIRCUIT
:+B SIGNAL LINE
I6
I7
I5
I1
SYNC
TO SMPS
SECTION (1/2)
SYS6V
Q5899
B1ABCF000176
CURRENT
LIMITING SWITCH
D5897
B0BC3R700004
I2
I4
I8
15 16 17
18 19 20
:-B SIGNAL LINE
PC5702
B3PBA0000402
R5896 C5897
Q5898
100K 0.1
4 1
B1ABCF000176
R5897
100 B0ACCK000005
INVERTER
3 2
SYNC SWITCH
PC5799
B3PBA0000402
1 4
2 3
FEED BACK
R5799
10
ETS19AB236AG
BACKUP TRANSFORMER
R5798
10
6
7 5
D5896
B0EAMM000057
8 4
C5898
3
9
0.1
Q5899
10 2
1
18 19 20
21 22 23
Q5750
B1ABCF000176
INVERTER
R5704
390K
D5730
R5705
390K
D5799
B0EAMM000057
C5799
D5798
B0EAMM000057 50V56
C5798
50V56
D5797
D5797
MA2J72800L
R5786 R5795
68K 43K
5 D VCC 4
C5794
C5790
22P
2200P
6 NC CL 3
R5796
2.2K
D5793
B0EAKB000004
7 S FB 2
W5011
R5797
0
4.7K
S
8 VDD 1
C5791
50V2.2
IC5799
MIP4110MSSCF
SWITCHING REGULATOR
21 22 23
107
24 25 26
IC5780
C0ABBA000168
OP AMP
1 2 3 4
R5751 -VCC
22K
IC5780
+VCC
8 7 6 5
D5796 R5790
D5796 33K
B0ACCK000005
R5789
22K
R5788
22K
4
J
TO
GRY
3 AC-INLET
D5701 CIRCUIT
B0FBAR000041
WHT IN SCHEMATIC
2
C5703
ECQU2A104MLC DIAGRAM - 16
0.1
1
M
TO
VOLTAGE
RED
SELECTOR CIRCUIT
BLU
IN SCHEMATIC
DIAGRAM - 17
1/2 2/2
SA-PT550GCP SMPS CIRCUIT
24 25 26
SA-PT550GCP
27 28
A
B
C
D
E
F
G
H
27 28