Power, Power Button & Ac Inlet Circuit - Panasonic SA-BTT350P Service Manual

17.5. Power, Power Button & AC Inlet Circuit
1 2 3
SCHEMATIC DIAGRAM - 15
A
F POWER CIRCUIT
B
E
CN2916
TO G2
SMPS CIRCUIT DC12V
3
(CN5802) GND 2
C
IN SCHEMATIC
DC18V 1
DIAGRAM - 13 G1
E
CN2917
TO G2
SMPS CIRCUIT DC5V 3
(CN5803) GND 2
IN SCHEMATIC GND 1
DIAGRAM - 13 G1
D
E
C2982
10
F
G
POWER BUTTON CIRCUIT
S6801
G K
H6803
POWER
TO
L6806 0
FL CIRCUIT DGND 1
L6804 0
KEY1_BTN 2
(CN6001)
L6805 0
IN SCHEMATIC LED 3
L6803 0
LED VREF 4
DIAGRAM - 17
D6800
B3ABA0000187
H
1 2 3
4 5 6
: +B SIGNAL LINE
C2973
1800P
C2971
R2908 0.1
10K
C2976 R2923
0.015 2.2K
R2920 R2921
8.2K 39K
C2962 R2929
0.01 3.3K
R2914
22K
C2957 R2956
0.01
4.7K
R2915
0
C2974
C2963
1
680P
1 2 3
Q2903
G
B1CHPD000003 B1CHPD000003
D
VOLTAGE REGULATOR VOLTAGE REGULATOR
S
6 5 4
L2903
L2907
G0A330ZA0045
J0JHC0000107
L2904
L2908
G0A330ZA0045 R2922
J0JHC0000107
10
C2975 C2902 D2912 C2983 C2903 D2911
10 6.3V1200 B0JCPG000005 1 16V820 B0JCPG000005
: +B SIGNAL LINE
4 5 6
7 8 9
IC2901
C0DBAYY00729
SWITCHING REGULATOR
CONTROLLER
C2953
0.1
1 CT VREF 20
2 DT2 DT1 19
C2964
0.1
3 SS2 SS1 18
R2924
5.6K
4 INV2 INV1 17
R2918 C2972
3.3K 0.22
5 FB2 FB1 16
6 GND STB 15
R2927 R2916
10K 22K
7 OCP2- OCP1- 14
C2981 R2917
1000P 3.3K
8 OCP2+ OCP1+ 13
R2926 R2925
R2955
8.2K 56K
0
9 C5V VCC 12
10 OUT2 OUT1 11
C2961 C2966 C2977 R2930
680P 1 0.22 2.7K
1 2 3
Q2902
G
D
S
6 5 4
R2919 L2902
10 G0A200D00002
C2907 C2901
35V56 35V220
H
AC INLET CIRCUIT
(RED)
P5701
TL10*
E
TO
SMPS CIRCUIT
AC IN
IN SCHEMATIC
120V 60Hz
DIAGRAM - 14
TL20*
(BLK)
7 8 9
121
10 11 12
SA-BTT350P,SA-BTT750P POWER / POWER BUTTON / AC INLET
10 11 12
13 14
A
B
C
D
E
F
G
CIRCUIT
H
13 14