Smps Circuit (Sa-Akx94Ph - Panasonic SA-AKX74PH Service Manual

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3.7.
SMPS Circuit (SA-AKX94PH-K)
With reference to original service manual (section 16.9) on pages 111 & 112.
1
2
3
SCHEMATIC DIAGRAM - 25
A
M
SMPS CIRCUIT
CN5801
L
+35V_SENSE
6
TO
+35V_SENSE
5
D-AMP CIRCUIT
SYS_GND
4
(ZJ5500*)
SYS_GND
3
IN SCHEMATIC
-35V_SENSE
2
DIAGRAM - 23
B
-35V_SENSE
1
CN5802
SMPS_ID
15
PCONT
14
DC16V
13
C
+16V_GND
12
ECO_CTL
11
B
TO
DCDET2
10
MAIN(MICON)
TEMP_DET
9
CIRCUIT (CN2007)
SYS3.3V
8
IN SCHEMATIC
SYNC
7
DIAGRAM - 7
+35V_SENSE
6
+35V_SENSE
5
C5831
OUTP_GND
4
0.1
OUTP_GND
3
C5832
-35V_SENSE
2
0.1
-35V_SENSE
1
D
K1...PH
0
TP
1
E
F
G
NOTE: " * " REF IS FOR INDICATION ONLY
H
1
2
3
4
5
6
: +B SIGNAL LINE
: -B SIGNAL LINE
R5701
220K
PCONT
PW_DC+16V
TEMP_DET
R5862
R5863
B1GBCFJJ0051
18K
18K
PW_SYS3.3V
R5860
R5861
SYNC
10K
1.8K
Q5860
Q5861
B1ADCF000001
B1ABCF000176
R5864
TEMPERATURE DETECT
TEMPERATURE DETECT
C5896
10K
C5870
0.1
0.1
R5800
R5841
15K
120K
TH5861
D4CCY1040001
R5840
C5843
82K
10
R5801
C5844
22K
10
QR5801
B1GBCFJN0038
D5804
QR5802
SWITCH
B0ACCK000012
B1GDCFGA0018
DA2J10100L
DC DETECT
TEMP_DET
PW_DC+16V
CHANGE
C5900
10
(D5804)
R5898
10K
PW_SYS3.3V
PCONT
4
5
6
7
8
9
D5801
Q5862
B0ABSM000010
TH5860
D4CCY1040001
DC DETECT
1
2
3
T5701
C5869
0.1
G4DYZ0000062
MAIN TRANSFORMER
10
-37V
C5805
11
R5836
R5833
R5832
50V2200
2.2K
2.2K
2.2K
12
13
GND
C5808
R5837
R5835
R5834
50V2200
2.2K
2.2K
2.2K
14
+37V
15
HEATSINK*
GND
16
3
2
1
G1
G2
17
+18V
D5803
18
D5802
B0HFRJ000012
B0ABSM000010
C5812
C5813
0.1
35V330
C5826
C5800
0.01
0.01
PC5720
B3PBA0000579
CHASSIS GND
FEEDBACK
R5809
R5807
330
330
1
4
R5808
2.2K
R5802
C5810
2
3
10K
0.1
IC5801
C5817
R5803
C0DAZYY00039
100V0.1
10K
SHUNT REGULATOR
R5814
R5804
8.2K
82K
K
R5806
15K
A
R5805
C5818
3.3K
0.1
R
R5865
180
PC5701
B3PBA0000579
FEEDBACK
1
4
R5817
R5810
330
330
2
3
QR5810
B1GBCFLL0037
PCONT SWITCH
7
8
9
14
10
11
12
C5713
R5702
0.01
9
200K
8
R5703
200K
HEATSINK*
3
7
R5715
D5702
200K
B0ZAZ0000089
6
G1
G2
R5716
1
2
200K
5
4
VIN
R5724
3
120
R5720
22
VCC
2
R5723
1K
1
D5721
GND
B0BC010A0007
L5704
DZ2J110M0L
J0JBC0000019
Q5720
B1BABG000007
VOLTAGE REGULATOR
Q5722
R5722
B1ABCF000176
1.2K
R5721
CURRENT
10K
LIMITING SWITCH
D5724
B0ACCK000012
D5728
DA2J10100L
B0ACCK000012
C5720
DA2J10100L
100P
R5730
C5728
1K
1000P
D5722
B0BC019A0007
DZ2J200M0L
R5728
C5721
R5729
100K
220P
10K
D5723
B0ACCK000012
DA2J10100L
CHANGE
(D5721,D5722,D5723,D5724,
D5725,D5727,D5728,D5732)
1/2
2/2
SA-AKX94PH SMPS CIRCUIT
10
11
12
13
14
P1
1
TO SMPS
CIRCUIT (2/2)
2
3
4
D5726
B0EAKM000117
D5729
B0EAMM000057
5
D5727
B0ACCK000012
DA2J10100L
6
D5732
C5722
B0BC035A0007
1000P
DZ2J360M0L
7
D5725
B0BC6R100010
DZ2J062M0L
8
13
14

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