Power Supply Circuit - Panasonic SA-PT660P Service Manual

19.5. Power Supply Circuit

1 2 3
SCHEMATIC DIAGRAM - 13
A
F
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
G SYS6VGND 3
TO
DC_DET 4
SMPS CIRCUIT
-13V 5
(CN5802)
GND 6
IN SCHEMATIC
GND 7
DIAGRAM - 15
+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
CN2011
OPEN 11
HOME 10
CLOSE 9
LO R 8
LO F 7
TO CR14
UD 6
G (CN2)
TOP 5
DGND 4
W6226 0
MODE 3
PGND 2
D2002 B0EAKM000117
VCC 1
H
1 2 3
4 5 6
: +B SIGNAL LINE : -B SIGNAL LINE : IPOD AUDIO SIGNAL LINE
9V
MGND
5.3V
+7V
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
L2909
G0A100HA0023
D2003 B0EAKM000117
MGND
4 5 6
7 8 9
: IPOD VIDEO SIGNAL LINE
D2909
D2908
MAZ82400HL
B0EAMM000057
5
D2903
B0EAMM000057
6
7
D2906
B0JAME000029
Q2904
B1BACG000023
R2913
R2915
+2.5V REGULATOR
1.5 1.5
C2975 0.1
Q2922 R2975 15K R2976
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
115
10 11 12
L2910
G0A220GA0026
T2900
G4D1A0000117
SWITCHING TRANSFORMER
4
3 Q2900
B1BABK000001
2 PSAVE CONTROL
1
8 9
R2902 C2902
3900P
47
R2935 4.7K
IC2903
C0DAAMH00012
SWITCHING REGULATOR
5 4 3 2 1
L2902
G0A101ZA0028
+5.3V
R2921
390 L2911
10K
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-PT660P/PC POWER SUPPLY CIRCUIT
10 11 12
SA-PT660P / SA-PT660PC
13 14
FP2901
0.4A
L2901
G0A220GA0026
2
TO POWER
SUPPLY SECTION (2/2)
1
13 14