Panasonic SA-AK280EB Manuale di servizio - Pagina 17

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3.9.

D-AMP Circuit for (SA-AK280PR)

With reference to original service manual (section 18.6) on page 103 for Model No. SA-AK280PR-K
1
2
3
SCHEMATIC DIAGRAM - 9
A
H
D-AMP CIRCUIT
JK5001
FL-
4
TO
FL+
3
B
SPEAKERS
FR-
2
FR+
1
C
CN5500
VDD
8
I
VDD
7
TO
GND
6
SMPS CIRCUIT
GND
5
(H5801*)
VSS
4
IN SCHEMATIC
VSS
3
DIAGRAM - 10
FAN GND
2
FAN DC
1
D
CN5050
1
FRONTL
17
SIGNAL A_GND
16
FRONT R
15
AGND
14
REAR R/SUBWOOFER
13
AGND
12
B
SURROUND L
11
TO
E
AGND
MAIN CIRCUIT
10
(CN2341A)
SURROUND R
9
IN SCHEMATIC
REAR L/AGND
8
DIAGRAM - 3
CENTER
7
MUTE S_C (MODE 1)
6
MUTE F_SW (MODE 2)
5
FHOP
4
ECO/FAN
3
DC_DET
2
MOD_DA
1
17
F
K5251
0
0
K5256
ADD
(K5256)
G
H
1
2
3
4
5
6
: +B SIGNAL LINE
: -B SIGNAL LINE
: AUDIO OUTPUT SIGNAL LINE
FL-
FL+
FR-
FR+
1
OSC
C5002
R5000
0.47
IN+_FR
C5004
R5002
0.47
R5010
10
VDDA0
VSSA0
FAN_DC
R5011
10
IN+_FR
K5001
IC5500
C0JBAB000902
MUTE F_SW
INVERTER GATE
R5504
22
(CLOCK GENERATOR)
DC_DET
C5550
0.01
1
1A
MOD_DA
C5556
0.01
2
1Y
D5502
D5501
MA2J11100L
MA2J11100L
C5557
100P
3
2A
X5501
R5506
H2A7003A0011
1M
C5551
390P
4
2Y
C5553
100P
5
3A
X5500
R5507
H2A6023A0011
1M
C5552
390P
6
3Y
7
GND
4
5
6
7
8
9
CHANGE
IC5000
C1BA00000487
C1BA00000492
AUDIO DIGITAL POWER AMP
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
C5030
C5008
C5009
C5024
C5025
C5006
220P
0.015
0.015
5.6K
330P
0.1
0.1
33P
C5010 R5004
R5005
C5011
5.6K
220P
10
10
220P
C5012
C5013
CHANGE
CHANGE
220P
220P
0
R5510
470
FAN_DC
VCC
14
R5514
OSC
6A
13
6Y
12
5A
11
5Y
10
4A
9
R5505
R5512
0
100
8
4Y
ADD
(R5512)
7
8
9
17
10
11
12
17
18
19
20
21
22
23
R5008
C5007
100
C5027
C5028
330P
0.1
0.1
TH5001
D4CC11040013
ADD
(C5027)
C5000
1000P
1
2
3
4
L5000
G0A150L00003
D5002
B0HCSP000001
CHANGE
D5004
B0HCSP000001
(C5450)
ADD
(K5781, K5782)
D5001
B0HCSP000001
D5003
B0HCSP000001
Q5603
B1ADCE000012
SWITCH
R5611
2.7K
Q5101
B1ABCF000176
DC DETECT
R5602
Q5604
10K
MOD_DA
B1ABCF000176
R5609
SWITCH
10K
MUTE F_SW
Q5601
DELETE
B1ABCF000176
(IC5501,C5560,C5561,K5780,R5511)
SWITCH
SA-AK280PR D-AMP
10
11
12
13
14
A
B
MODE
FR_+
L5001
G0B9R5K00003
C
FR+
1
2
FR-
3
4
FL-
3
4
FL+
1
2
L5002
G0B9R5K00004
D
FL_+
C5445
0.1
K5782
0
C5450
0.1
K5781
0
0
3
2
1
3
2
1
ZJ5400
ZJ5410
E
DELETE
(C5446,C5447,C5448,C5449)
F
Q5102
B1ABCF000176
DC DETECT
R5020
68K
FR_+
R5019
68K
FL_+
G
R5671
0
CIRCUIT
H
13
14