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Panasonic Manuals
Stereo Receiver
SA-BX500PP
Service manual
Smps Circuit - Panasonic SA-BX500PP Service Manual
Av control receiver.
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13.11. SMPS Circuit
1
2
3
SCHEMATIC DIAGRAM - 29
A
P
SMPS CIRCUIT
: +B SIGNAL LINE
B
DCDET
H5801*
+30V_SENSE
+30V_SENSE
8
FAN_18V
N
+30V_SENSE
7
TO
GND
6
D-AMP A(4CH)
GND
5
CIRCUIT
C5832
-30V_SENSE
4
(CN5500)
0.1
-30V_SENSE
-30V_SENSE
3
C
IN SCHEMATIC
2
DIAGRAM - 26
FAN_GND
FAN_18V
FAN_18V
1
C5823
0.1
H5802*
-30V_SENSE
+30V_SENSE
8
O
+30V_SENSE
7
TO
GND
6
D-AMP B(3CH)
GND
5
CIRCUIT
-30V_SENSE
4
(CN5500)
+30V_SENSE
-30V_SENSE
3
IN SCHEMATIC
FAN_GND
2
DIAGRAM - 28
D
FAN_18V
1
CN5802
DCDET
AM_BP
AM_BP
11
PCONT
PCONT
10
DC_18V
DC18V
9
AM_BP
C
DC_18V
TO
DC18V
8
R5825
C5812
0.1
MAIN(CPU)
+18V.-12V_GND
7
1K
E
CIRCUIT
+18V.-12V_GND
6
Q5803
C5815
0.1
-13V
(CN7001)
-13V
5
2SC3940ARA
DCDET
IN SCHEMATIC
DCDET
4
SWITCHING
DIAGRAM - 18
SYS_GND
3
-13V
C5896
0.1
SYS6V
SYS6V
2
SYNC
FAN_18V
SYNC
1
F
+30V_SENSE
K8
0
K1
0
G
-30V_SENSE
SYS6V
PCONT
H
1
2
3
4
5
6
: -B SIGNAL LINE
D5809
MA2J11100L
Q5861 - Q5862
B1ABCF000176
TRANSFORMER TEMP DETECT
D5801
B0HBSM000043
Q5860
2SA207700L
1
2
TRANSFORMER
C5869
TEMP DETECT
C5870
0.1
0.1
R5801
MAZ82000ML
D5807
MA2J11100L
C5800
1
QR5801
0.01
3
2
1
2
UNR221400L
3
DC DETECT
ZJ5801
D5802
B0HBSM000043
R5809
330
IC5801
C0DABFC00002
SHUNT REGULATOR
C
3
2
A
Q5802
1
B1ABCF000176
R
FEED BACK CONTROL
D5806
MAZ80750ML
4
5
6
7
8
9
10
3
T5701
ETS42BM19GAC
MAIN TRANSFORMER
10
9
-30V
DRAIN
11
8
AMPGND
12
7
13
6
14
5
+30V
15
4
+FAN 18V
VIN
GND
16
3
+18V
VCC
17
2
D5803
R5720
B0HFRJ000012
22
18
1
-12V
Q5720
2SC3940ARA
CURRENT
LIMITING SWITCH
D5805
B0EAMM000057
R5721
10K
Q5722
C5720
C5827
B1ABCF000176
0.01
CURRENT
1000P
LIMITING SWITCH
R5730
D5722
1K
B0BC019A0007
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
10
111
11
12
13
R5703
R5702
33K
33K
3
1
2
Q5721
2SA207700L
SWITCHING
D5726
B0EAKM000117
D5721
MAZ81800ML
D5729
Q5720
B0EAMM000057
D5728
MA2J11100L
D5724
D5727
MA2J11100L
MA2J11100L
R5725
0
C5728
1000P
C5727
3300P
1/2
2/2
SA-BX500PP SMPS CIRCUIT
11
12
13
SA-BX500PP
14
P1
2
3
TO SMPS
SECTION (2/2)
4
R5732
100
IC5701
C5HACYY00004
SWITCHING REGULATOR
7
OCP/BD
6
FB
5
OLP/SS
C5730
50V1
4
VCC
3
GND
2
S
1
D
R5726
0.82
7
R5727
0.1
14
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