Power Supply Circuit - Panasonic SA-PT460 Service Manual

SA-PT460EB / SA-PT460EG

19.6. Power Supply Circuit

1 2 3
SCHEMATIC DIAGRAM - 14
A
G
POWER SUPPLY CIRCUIT
CN2016
F+ 1
F- 2
-VP 3
GND 4
B
TO
B GND 5
MAIN CIRCUIT
5.3V 6
(CN2015*)
5.3V 7
IN SCHEMATIC
DVD_2R5 8
DIAGRAM - 8
SYS6V 9
W6409 0
SYS6VGND 10
9V 11
MGND 12
+18V 13
CN2004*
SYNC 1
L2913 G0A220GA0026
C
SYS6V 2
H SYS6VGND 3
TO
DC_DET 4
SMPS CIRCUIT
-13V 5
(CN5802)
GND 6
IN SCHEMATIC
GND 7
DIAGRAM - 16
+18V 8
R2010
+18V 9
1K
PCONT 10
AMBP 11
CN6001
D
28
+7V 1
AGND 2
AGND 3
-7V 4
SYNC 5
DC_DET2 6
AMBP 7
DCDET1 8
W6406 0
PCONT
9
MODE 10
TOP 11
B UD 12
E
TO
LO F 13
MAIN CIRCUIT
LO R 14
(CN2008)
CLOSE 15
IN SCHEMATIC
HOME 16
DIAGRAM - 6
OPEN 17
ACC_PWR 18
DO_UART_OUT/TX 19
DO_UART_IN/RX 20
DOCK5VSW 21
DOCK_L_OUT 22
DPORT_AGND 23
DOCK_R_OUT 24
F
IPOD DETECT 25
VGND 26
IPOD_VIDEO OUT 27
VGND 28
1
G
H
1 2 3
4 5 6
: +B SIGNAL LINE : -B SIGNAL LINE : IPOD AUDIO SIGNAL LINE
9V
MGND
5.3V
+7V
Q2904
B1BACG000023
+2.5V REGULATOR
DOCK5V_GND
ACC_PWR
DO_UART_OUT/TX
DO_UART_IN/RX
DOCK5VSW
DOCK_L_OUT
DPORT_AGND
DOCK_R_OUT
IPOD_DET
VGND
IPOD_VIDEO OUT
MGND
4 5 6
7 8 9 10
: IPOD VIDEO SIGNAL LINE
D2909
D2908
MAZ82400HL
B0EAMM000057
G4D1A0000117
SWITCHING TRANSFORMER
4
5
D2903
B0EAMM000057
6
7
8 9
D2906
B0JAME000029
R2913
R2915
1.5 1.5
C2975 0.1
Q2922 R2975 15K R2976 10K
B1GBCFJJ0051
DC DETECT
R2936
R2946
470
33
Q2921
D2912
B1ADCF000001
B0BC3R400001
DC DETECT
R2954 47
R2910 47
Q2901
B1BCCG000002
R2911
-7V POWER SUPPLY
3.9K
Q2902
B1ADCF000001
POWER CONTROL
Q2903
B1BACG000023
+7V POWER SUPPLY
+9V
7 8 9 10
110
11 12 13
FP2901
L2910
G0A220GA0026 0.4
T2900
3 Q2900
B1BABK000001
2 PSAVE CONTROL
1
R2902 C2902
3900P
47
R2935 4.7K
IC2903
C0DAAMH00012
SWITCHING REGULATOR
5 4 3 2 1
L2902
G0A101ZA0028
+5.3V
R2921
390 L2911
G0A200D00002
3 2 1
E2900
R2930 4.7K
IC2900
C0DAAYY00042
SWITCHING REGULATOR
5 4 3 2 1
L2903
G0A101ZA0028
R2923 R2906
1.2K 6.8K
1/2 2/2
SA-PT460EB/EG POWER SUPPLY CIRCUIT
11 12 13
14
L2901
G0A220GA0026
2
TO POWER
SUPPLY SECTION (2/2)
1
14