Panasonic SA-BT222EB Service Manual page 112

15 16 17
SCHEMATIC DIAGRAM - 27
C
D-AMP CIRCUIT
: +B SIGNAL LINE
TO D-AMP
SECTION (1/3)
PVDD
VDD
IC5100
C5100
C1AB00003260
0.1
DIGITAL AMPLIFIER
D5410
B0ACCK000005 1 GVDD_B GVDD_A
DCDET
R5100
2 /OTW
10
VCC R5445 10K
3 /SD
PWM_FL+
4 INPUT_A
VALID1 R5103 100
5
/RESET_AB
PWM_FR+
6 INPUT_B
R5104 22K
7
OC_ADJ
R5105 0
8 GND
9
AGND
10 VREG
C5101 11 M3
0.1
12 M2
13 M1
PWM_SW+
14 INPUT_C
VALID2
R5106 100
15 /RESET_CD
PWM_SW-
16 INPUT_D
VDD
17
18 GVDD_C GVDD_D
R5107
10
C5104
0.1
GND
P1
1
2
3
15 16 17
18 19 20
: AUDIO OUTPUT SIGNAL LINE
R5410
33K
C5119
0.1
R5109 10
36
C5118 0.033
BST_A 35
34
PVDD_A
OUT_A 33 C5115 C5116
C5117
2.2 2.2 63V330
GND_A 32
GND_B 31
C5113 C5114
30
OUT_B
2.2 2.2
PVDD_B 29
C5112 0.033
28
BST_B
C5111 0.033
BST_C 27
PVDD_C 26
C5109
C5110
OUT_C 25
2.2 2.2
24
GND_C
GND_D 23
C5107 C5108
22
OUT_D
2.2 2.2
PVDD_D 21
C5106 0.033
20
BST_D
R5108 10
19
C5105
0.1
18 19 20
21 22 23
Q5410
B1ABCF000011
DC DETECT
C5410
R5411 0.1 R5127
47K 100K
D5625
B0HCSP000001
C5120
C5121
R5141
1
35V470
5.6K
L5100 C5133 R5142 D5624
35V470
G0C100M00006 5.6K
B0HCSP000001
2 1
D5623
B0HCSP000001
4 3
C5127 C5134 R5143
R5129
1 35V470
5.6K
100K
C5128
R5144
35V470
5.6K
D5622
B0HCSP000001
D5621
B0HCSP000001
L5101
G0C100M00006
C5138 C5135
2 1
1000P 0.47
D5620
B0HCSP000001
4 3
D5619
B0HCSP000001
C5139 C5141 R5119
R5122 R5123
1000P 0.01 3.3
1K 1K
R5120 C5140 R5124 R5125
3.3 0.01
1K 1K
21 22 23
112
24 25 26
Q5409
B1ABCF000011
DC DETECT
Q5408
B1ABCF000011
DC DETECT
R5431
22K
C5427
L5103
R5126 10
G0B9R5K00005
100K
1 2
C5150
R5113
1000P
R5134
5.6K
5.6K
3 4
C5151
1000P
D5514
B0ACCK000005
R5133
5.6K L5104
R5128
G0B9R5K00005
100K
1 2
C5152
R5117
1000P
5.6K
3 4
C5153
1000P
D5513
C5448 C5428
B0ACCK000005 10 10
C5132 R5132
L5105
1 5.6K
G0B9R5K00005
R5130
100K
1 2
C5154
1000P
R5121 3 4
10K
C5155
1000P
C5414
R5131
1000P
100K
1/3 2/3
3/3
SA-BT222EB/EG D-AMP CIRCUIT
24 25 26
27 28
A
B
C
FL+
FL-
D
FR+
FR-
E
SW+
SW-
SPK_GND
F
G
H
27 28