D-Amp Circuit - Panasonic SA-AKX92LM-K Service Manual

17.8. D-Amp Circuit

1 2 3
SCHEMATIC DIAGRAM - 19
A
I D-AMP CIRCUIT
B
IC5500
C0JBAB000902
R5510
1K
HEX INVERTER
D5502
C5550
0.01 B0ACCK000012
C
1 1A VCC
14
C5556
0.01
2 1Y 6A
D5501 13
B0ACCK000012 C5557
100P
3
2A 6Y 12
X5501 C5551 R5515
H2A7003A0011 390P 0
4 5A
2Y 11
C5553
R5513
100P
5 3A 5Y 10
X5500
H2A6023A0011
6 3Y 4A 9
C5552 R5505
R5512
D 100
390P
7 GND 8
4Y
E
F
K5255...AKX92
0
G
H
1 2 3
4 5 6
: +B SIGNAL LINE : -B SIGNAL LINE : AUDIO OUTPUT SIGNAL LINE
FHOP
1 2 3 4 5
OSC2
C5313 C5316
VDD R5307 C5312 0.1
C5317
IN_SW(1/2) 5.6K 330P
IN_SW(2) 0.47
C5314 R5306
0.47 5.6K
K5502
0
IN_SW(1)
VDDP
100
OSC2
VSSP
0
OSC
R5310
10
Q5603
B1ADCE000012
R5611
SWITCH
1.2K
R5608
10K
R5604
1.2K
R5603
10K
Q5604
R5602
B1ABCF000176
10K
MOD_DA
SWITCH
Q5601
B1ABCF000176
MUTE_F
SWITCH
R5609
10K
4 5 6
7 8 9
IC5300
C1BA00000497
POWER AMPLIFIER
6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
C5304
C5323 C5324 C5322 C5305 C5306
330P
0.015 0.015
0.1 33P 0.1 0.1
C5307
R5305 C5311
220P
10 220P
R5302
C5333
10
1000P
C5326 C5325
220P 220P
MODE1_2
MODE1
R5111 100K
MODE2
R5113 150K
R5020 100K
R5019 150K
Q5102
R5218 100K
B1ABCF000176
R5228 120K
DC DETECT
Q5101
R5318 120K
B1ABCF000176
R5328 100K
DC DETECT
AGND
7 8 9
123
10 11 12
R5304
22 23
100
MODE2
SW2_+
C5331 C5601
1000P 16V10
D5304 B0HCSP000001
K5500 0
D5302 B0HCSP000001
D5303 B0HCSP000001
D5301 B0HCSP000001
L5300
G0A150L00003
1 2
3 4
FRH_+
FRL_-
FLH_+
FLL_-
SW2_+
SW2_-
SW1_+
SW1_-
R5671
0
1/2 2/2
SA-AKX92PH D-AMP CIRCUIT
10 11 12
13 14
JK5001
FR(L)-
1 FRONT R (LOW)-
FR(L)+
2 FRONT R (LOW)+
FR(H)-
3 FRONT R (HIGH)-
FR(H)+
4 FRONT R (HIGH)+
FL(L)-
5 FRONT L (LOW)- TO SPEAKERS
FL(L)+
6 FRONT L (LOW)+
(FRONT/
FL(H)-
7 FRONT L (HIGH)-
FL(H)+ SUBWOOFER)
8 FRONT L (HIGH)+
SW(1)-
9 SUBWOOFER 1 -
SW(1)+
10 SUBWOOFER 1 +
SW(2)-
11 SUBWOOFER 2 -
SW(2)+
12 SUBWOOFER 2 +
TO D-AMP
CIRCUIT (2/2)
3
2
SW(2)+
1
SW(2)-
P1
3 2 1
ZJ5410
4
13 14