Panasonic SA-BT300PX Service Manual page 103

15 16 17 18
SCHEMATIC DIAGRAM - 35
J D-AMP CIRCUIT
: +B SIGNAL LINE
P3
R8119 100K
R8107 1K
4 5
Q8001
B1HBDCA00001
MUTING
3 2
R8219 100K
R8207 1K
C8102 100P
SURR B L C8101 10 R8102 3.3K
C8202 100P
SURR B R C8201 10 R8202 3.3K
AGND
SURR L C8301 10 R8302 3.3K
C8302 100P
SURR R C8401 10 R8402 3.3K
C8402 100P
5Y
R8319 100K
R8307 1K
4 5
Q8002
B1HBDCA00001
MUTING
3 2
R8419 100K
R8407 1K
TO D-AMP
SECTION (1/6)
19 20 21
: -B SIGNAL LINE : AUDIO OUTPUT SIGNAL LINE
6
1
R8106 150
R8205 R8105
150K
100K R8206 150
R8103 22K C8103 2200P
C8111 10 R8104 6.8K
R8203 22K
C8203 2200P
C8211 10 R8204 6.8K
C8311 10 R8304 6.8K
R8303 22K C8303 2200P
C8411 10
R8404 6.8K
R8403 22K C8403 2200P
R8306 150
R8305 R8405
R8406 150
150K 100K
6
1
22 23 24
R8212
47K
R8209
22K
R8008
10K
C8009
0.1
C8206 R8208
10 10K
R8007
8.2K
C8105 1000P
36 35 34 33 32 31 30 29 28 27 26 25
C8205 1000P
C8104 2200P
37 COMP3 VB3 24
38 IN3 CSH3 23
[35] OCSET [25] HO3
C8204 2200P
39 COMP4 LO3 22
[36] VREF
40 IN4 LO4 21
IC8001
41 GND COM2 20
RFKB4504A-J
C8003 1
42 VSS NC 19
C8011
C8004 1 AUDIO AMPLIFIER DRIVER
1
43 VAA NC 18
44 IN2 VCC2 17
C8304 2200P
45 COMP2 LO2 16
46 IN1 LO1 15
C8404 2200P
47 COMP1 CSH1 14
[1] DS [12] HO1
C8305 1000P 48 13
CSD VB1
C8405 1000P C8005 T1
16V10
1 2 3 4 5 6 7 8 9 10 11 12
C8306 R8308
10 10K
R8309
22K
R8312
47K
R8322
47K
TO D-AMP
SECTION (5/6)
103
25 26 27
TO D-AMP
SECTION (3/6)
D8201
B0ACCK000005
D8101
B0ACCK000005
R8210
10K
D8202
B0ACCK000005
R8211 4.7
D8102 R8222
B0ACCK000005 47K
R8111 4.7
C8106 R8108
10 10K R8122
47K
R8109 22K R8110 10K
-B
R8112 47K
R8087 4.7 VCC
R8409 22K R8410 10K
R8412 47K
R8422
47K
R8408
C8406
10K
10
D8402
B0ACCK000005
R8411 4.7
D8302
B0ACCK000005
R8311 4.7
D8401
R8310
B0ACCK000005
10K
D8301
B0ACCK000005
+B
1/6 2/6 3/6
4/6 5/6 6/6
SA-BT300PX D-AMP CIRCUIT
28
P3
HO4_1
VS4_1
VS3_1
HO3_1
LO3_1
LO4_1
P1
LO2_1
LO1_1
VS1_1
HO1_1
HO2_1
VS2_1