Smps Circuit (2/2) - Panasonic SA-MAX3500PU Service Manual

12.21. SMPS Circuit (2/2)

15 16 17
SCHEMATIC DIAGRAM - 20
H SMPS CIRCUIT
B0EDKT000007
HA
HB
HC
HD
15 16 17
18 19 20
: +B SIGNAL LINE
Q1403
B3PBA0000579
SYNC
D1406
B0ECET000006
2
R1417 R1420
220K
820K
1
R1418
220K
D1402
F1401
T500mAL 250V
C1406 D1403
1000P B0HAMP000094
R1415
C1403
100K
450V15
D1416 R1419
8 7 5 DZ2J100M0L 22
S S D
IC1402 D1404
B0EAMM000057
MIP2F20MSSCF
SWITCHING MODE POWER T1401
SUPPLY CONTROL D1405
G4DYA0000592
B0EAMM000057
C1408
VDD FB CL VCC TRANSFORMER
50V220
C1404
1 2 3 4
0.1
C1405
1000P
R1411
Q1404 C1409
15K R1412
470P
470K B3PBA0000579
C1411 C1407 1 FEEDBACK
4
1000P
3
Q1402
B1ACKD000006
4
SWITCH R1413
R1414
1K
10K
3
Q1405
B3PBA0000579
QR1601
PCONT
B1GBCFLL0037
LB1501
J0JGC0000020 PCONT
HE
C1518
470P
T1501
G4DYA0000778
TRANSFORMER
HF
HG
C1516
0.068
Q1505
B3PBA0000579
FEEDBACK
HH 4
HI 3
Q1701
B3PBA0000579
POWER UP 4
HJ
HK 3
QR1701
B1GBCFLL0037
18 19 20
21 22 23
R1705
10K Q1702
B1ABCF000176
R1704
3
SYNC
C1701 100K
0.01
4
C1604
470P
D1601
B0EAMM000057
IC1601
C0DAZYY00039
SHUNT REGULATOR
R1602
68
1
K A R
2
R1604
R1607
10K
10K
R1605
1K
1 C1602
0.1
R1606
10K
R1601
2
330
D1703 D1705
ZA1701
B0FBCM000011 B0FBCM000011
(HEATSINK)
G1 G2
1 2 3 1 2 3
ZJ1103
C1800
0
TH1701
R5859
D4CC11040013
10K
R1757
10K
IC1701
R1717
0
C0DAZYY00039
R1702
2.7K
SHUNT REGULATOR
R1708 Q1766
R1703
33K
2.7K
B1ABCF000176
TEMP DETECT
R1709
R1701
K A R 0
1.5K
1
C1708 R1710
QR1720
0.022 1.8K R1721
24K
B1GBCFLL0037
2
SWITCH
R1716
C1704 R1706
1K R1711
0.1 10K
2.4K
1
R1724
560
R1725
R1726
2 4.7K
10K
C1721
0.01
SWITCH
21 22 23
76
24 25 26
CN1851
13 +38.5V
12
+38.5V
11 +38.5V
10 P_GND
9 A
P_GND
TO
8 P_GND
MAIN (VREG FAN)
7
POWER_MODE
CIRCUIT (CN2103)
R1852
6 SMPS_ID
IN SCHEMATIC
33K
5 AM_BP
DIAGRAM - 9
4
PCONT
3 SYS5V
2 SYNC
1
TEMP_DET
C1762
0.1
24 25 26
27 28
A
B
C
D
E
F
G
1/2 2/2
SA-MAX3500PU
H
27 28