Panasonic SA-BTT775GA Service Manual page 141

1 2 3
SCHEMATIC DIAGRAM - 7
A
A
DIGITAL(POWER) CIRCUIT
B
R2920
8.2K
C
C2962
0.01
D
L2901
J0JHC0000107
MA PW_iPod_5V
L2900
J0JHC0000107
ET PW_USB_5V
L2907
J0JHC0000107
PW_DC12V
MA DN
E
L2908
J0JHC0000107
HO MA PW_DC5V
C2982 C2975 C2900 C2904
10 10 10 10
MA 12VGND
F
IN VOLUME 1:
MA: DIGITAL(MICON): SCHEMATIC DIAGRAM - 1 ~ 6
PW: DIGITAL(POWER): SCHEMATIC DIAGRAM - 7
IN VOLUME 2:
BP: DIGITAL(BP2): SCHEMATIC DIAGRAM - 1 ~ 4
DD: DIGITAL(DDR3): SCHEMATIC DIAGRAM - 5 ~ 6
FE: DIGITAL(FRONT END): SCHEMATIC DIAGRAM - 7 ~ 10
DN: DIGITAL(DIGITAL NET): SCHEMATIC DIAGRAM - 11
SU: DIGITAL(SD USB): SCHEMATIC DIAGRAM - 12
ET: DIGITAL(ETHER): SCHEMATIC DIAGRAM - 13 ~ 14
HO: DIGITAL(HDMI OUT): SCHEMATIC DIAGRAM - 15
G
H
1 2 3
4 5 6
: +B SIGNAL LINE
IC2901
C0DBAYY00729
2CH SWITCHING REGULATOR
CONTROLLER
C2973
1800P
1 CT VREF
2 DT2 DT1
C2971
R2908 0.1
10K
3 SS2 SS1
4 INV2 INV1
C2976 R2923
0.015 2.2K
R2921
39K 5 FB2 FB1
R2929
6 GND STB
3.3K
R2914
22K
7 OCP2- OCP1-
C2957 R2956
0.01
2.7K
8 OCP2+ OCP1+
R2915
0
9 C5V VCC
10 OUT2 OUT1
C2974
C2963
1
680P
1 2 3
Q2903 Q2902
G
B1DGDC000002 D B1DGDC000002
VOLTAGE REGULATOR VOLTAGE REGULATOR
S
6 5 4
L2903
G1C330M00027
L2904
G1C330Z00012
C295 R2922
1000P 0.1
C2902 D2912 R290 C2983 C2903 D2911
6.3V1000 B0JCPG000030 10 1 16V680 B0JCPG000030
4 5 6
7 8 9
C2953
0.1
20
19
C2964
0.1
18
R2924
5.6K
17
R2918 C2972
3.3K 0.22
16
15
R2927 R2916
10K 22K
14
C2981 R2917
1000P 3.3K
13
R2926 R2925
R2955
8.2K 56K
0
12
11
C2961 C2966 C2977 R2930
680P 1 0.22 2.7K
1 2 3
G
D
S
6 5 4
R2919 L2902
0.1 G1C100MA0291
PW_DC18V
C296
1000P
R291 C2907 C2901
10 35V68 35V220
GND
7 8 9
141
10 11 12
MA
MA
SA-BTT775GA/PU DIGITAL(POWER)
10 11 12
13 14
A
B
C
D
E
F
G
CIRCUIT
H
13 14