D-Amp Circuit - Panasonic SC-HC3P Service Manual

17.9. D-AMP CIRCUIT

1 2 3
SCHEMATIC DIAGRAM - 9
A
D-AMP CIRCUIT
CN4
TO
15.5VGND 1
SMPS CIRCUIT
15.5VGND 2
(CN906)
15.5V 3
IN SCHEMATIC
15.5V 4
DIAGRAM - 10
CN1
B
12
RCH 1
AGND 2
LCH 3
AGND 4
TO
MUTE_C 5
MAIN CIRCUIT
PCONT_2 6
(CN110)
F_SHIFT 7
IN SCHEMATIC
POWERDET2 8
DIAGRAM - 4
SIG_DET 9
TURN_SIG 10
FANDC 11
C FANGND 12
1
D
E
F
G
H
1 2 3
4 5 6
: +B SIGNAL LINE : AUDIO OUTPUT SIGNAL LINE
15.5VGND
D10
R24 R22
15.5V
1K 1K MA2SD320GL
SIG_DET
RCH
D11
D9 R23 C41
AGND MA2SD320GL
MAZ8033G0L 2.2M
0.22
LCH
MUTE_C
PCONT_2
F_SHIFT
LCH
POWERDET2
SIG_DET
RCH
AGND
POWERDET2
R13 R12
100K 100K
QR4
B1GBCFJJ0051
MUTING CONTROL
MUTE_C
QR2
B1GBCFJJ0051
PCONT_2 PCONT SWITCH
15.5V
F_SHIFT
15.5VGND
4 5 6
7 8 9
R20 18K C38 0.33
R21 18K C39 0.33
C40
1000P
IC1
C1AB00003012
POWER AMP
R18
R16 1.2K
6.8K
C34 4.7
1
IN1
R1 22K
2 PLMT1
3
PLMT2
R2
22K
4
PLMT3
C6 R3
0.1 22K
5
PLMT4
C8 1
6
BSP1P
7
VCCP1P
8
VCCP1P
9
OUT1P
10
OUT1P
L2
G0C150MA0056
D4 11 GNDP1
C10
C16
B0JCME000035
25V220
0.1
12 GNDP1
D6
C26 13 OUT1N
C28
B0JCME000035
0.1
0.47
14 OUT1N
L4
G0C150MA0056
15 VCCP1N
C18
1
16 VCCP1N
QR3
C22 1
17 BSP1N
B1GBCFJJ0051
DC DETECT
D12 MA2J1110GL
18 WARNING
D13 MA2J1110GL
19 ERR
20 MUTEX
SHUT
21
DOWN
22 NC
T1
7 8 9
99
10 11 12
R19
1.2K
C35
4.7
44
IN2
R17
6.8K
GNDA 43
C1
10
42
FILA
C4
1
41
FILP
C3 C5
0.1 22V220
40
VCCA
C7 1
39
BSP2P
38
VCCP2P
37
VCCP2P
36
OUT2P
35
OUT2P
L1
G0C150MA0056
GNDP2 34
C9 D3
C13 C29
25V220
B0JCME000035 0.1 0.47
GNDP2 33
D5
B0JCME000035
C25
OUT2N 32
0.1
L3
G0C150MA0056
OUT2N 31
C17
VCCP2N 30
1
VCCP2N 29
C21 1
BSP2N 28
C23 3.3
VHOLD 27
C2 0.1
TM 26
R9 18K R7 3.9K
ROSC 25
R11 10K
MS 24
OSC 23
QR1
B1GBCFJJ0051
LEVEL SHIFTER
SC-HC3P/PC D-AMP
10 11 12
13 14
A
CN2
1 LCH LO+
2 LCH LO-
TO SPEAKERS
3 RCH LO+
4 RCH LO-
B
C
D
E
F
G
CIRCUIT
H
13 14