Power Supply - Panasonic SA-AKX57PN Service Manual

12.3. Power Supply

IC5790
MIP2F20MSSCF
SWITCHING MODE POWER
SUPPLY CONTROL
CL 3
D5795
VCC 4
D 5
FB 2
VDD 1
P5701
AC INLET
L5701 L5702
F1
2 1 2 1
3 4 3 4
DZ5701
FOR SA-AKX77PH ONLY
VOLTAGE SELECTOR P.C.B.
TL5*
TL5711*
BLK BLK
S5701
VOLT ADJ
TL6*
TL5712*
RED RED
IC5701
C1ZBZ0004646
SWITCHING
REGULATOR
VCC 2
D5724,D5727
OCP/BD 5
Q5701
DRIVE 8 SWITCH
FB 4
NOTE: " * " REF IS FOR INDICATION ONLY
SMPS P.C.B.
T5751
SUB
TRANSFORMER
D5798
6 8
D5896
5 7
2 10
1 9
D5793
3
IC5899
C0DAZYY00039
SHUNT
REGULATOR
PC5799
FEEDBACK
CIRCUIT
PC5702,Q5898
SYNC
CIRCUIT
PC5701
PCONT
3 2
D5701
4 1
T5701
MAIN
TRANSFORMER
4
5
Q5721
SWITCH
6
D5702
7
D5726
8
D5801,D5802
14
9
13
D5729 D5721
11
Q5720
D5731
12
VOLTAGE
2
REGULATOR
1
D5723 D5722
D5728
Q5711
CURRENT
LIMITING
SWITCH
FEEDBACK
CIRCUIT
IC5801
C0DAZYY00039
SHUNT
REGULATOR
PC5720
PRIMARY SECONDARY
SYS3.3V CN5802 CN2008 SYS3.3V
9 9
TEMP DET CN5802 CN2008 TEMP DET TEMP DET
TEMP DET
1 1
TH5861
SYNC CN5802 CN2008 SYNC SYNC
SYNC
8 8
PCONT CN5802 CN2008 PCONT PCONT
PCONT
12 12
QR5810
PCONT
SWITCH
Q5803
AM
CN5802 CN2008 SMPS BP
SMPS BP SMPS BP
BEATPROOF SMPS BP
13 13
CIRCUIT
5V REG BP
5V REG BP
15V REG BP
15V REG BP
IC2012
C0DBAYY01594
+5.9V DC/DC
CONVERTER
Q2023
SWITCH
5 RT/CLK
DC 36V
2 VIN
CN5802 CN2008
DC 36V DC 36V
IC2011
11 11
C0DBAYY01594
+15V DC/DC
CONVERTER
Q3301
DC 36V
2 VIN
SWITCH 5 RT/CLK
+36V SENSE CN5802 CN2008 +36V SENSE
5,6,7 5,6,7
47
MAIN P.C.B.
FROM/TO
SERVO & SYSTEM CONTROL
IC2009
C0DBGYY03056
+3.3V VOLTAGE
REGULATOR
PW +5R4V PW +5R4V PW CD 3R3V
PH 10
3 VIN VOUT 2
BOOT 1
VSENSE 7
PW +15V
PH 10
BOOT 1
VSENSE 7
SA-AKX57PN,SA-AKX77PH/PN POWER SUPPLY (1/2) BLOCK DIAGRAM
PW SYS 3R3V
1
TO POWER SUPPLY
BLOCK (2/2)
PW +5R4V
2
PW CD 3R3V
3
PW +15V
4
PW +36V
5