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SA-VK870EE
20.6. D-Amp Circuit
1
2
3
SCHEMATIC DIAGRAM - 14
A
M
D-AMP CIRCUIT
B
IC5500
C0JBAB000902
C5562
6.3V1000
INVERTER GATE
(CLOCK GENERATOR)
C5550
C
0.01
1
1A
VCC
14
C5556
D5501 - D5502
0.01
6A
MA2J11100L
2
1Y
13
C5557
X5501
100P
H2A7003A0011
3
2A
6Y
12
C5551
390P
4
5A
2Y
11
C5553
100P
5
3A
5Y
10
X5500
H2A6023A0011
6
3Y
4A
9
C5552
R5505
D
390P
100
7
8
GND
4Y
1
O1
VCC
14
E
2
O1
O2
13
3
CP1
O2
12
4
CD1
CP2
11
10
5
D1
CD2
6
SD1
9
D2
7
8
GND
SD2
F
IC5501
C0JBAF000716
D-TYPE FLIP-FLOP
K5251
0
...VK870
G
K5254
0
...VK870
H
1
2
3
4
5
6
: +B SIGNAL LINE
: -B SIGNAL LINE
: MAIN SIGNAL LINE
FHOP
FAN_DC
FAN_GND
1
2
3
4
5
OSC
C5313
C5316
C5312
C5317
R5307
0.1
IN+_SW
0.47
5.6K
330P
C5314
R5306
SW+5V
0.47
5.6K
VDDP
VSSP
R5310
10
VSSA3
OSC
SW+5V
R5610
Q5603
1.2K
B1ADCE000012
R5611
SWITCH
1.2K
SW+5V
Q5604
R5602
B1ABCF000176
10K
MOD_DA
SWITCH
Q5601
B1ABCF000176
MUTE_F
SWITCH
R5609
10K
R5606
10K
MUTE_S
4
5
6
7
8
9
IC5300
C1BA00000487
AUDIO DIGITAL POWER AMP
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
C5324
C5322
C5304
C5306
C5323
0.015
0.015
330P
0.1
0.1
220P
C5307
C5311
R5302
R5305
220P
220P
10
C5333
10
1000P
C5326
C5325
220P
220P
MODE1_2
MODE1
R5111
120K
MODE2
R5113
68K
R5020
120K
R5019
68K
Q5102
B1ABCF000176
R5218
68K
R5228
120K
DC DETECT
Q5101
R5318
120K
B1ABCF000176
DC DETECT
Q5602
B1ABCF000176
SWITCH
AGND
7
8
9
116
10
11
12
R5304
22
23
100
MODE2
SW_+
D5302
B0HCMM000019
K5500
0
D5304
B0HCMM000019
D5301
B0HCMM000019
D5303
B0HCMM000019
L5300
G0A150L00003
1
2
3
4
SR_+
SL_+
FR_+
FL_+
SW_+
SW_-
C_+
R5671
0
FAN_GND
1/2
2/2
10
11
12
13
14
JK5001
SL-
1
SURROUND L-
SL+
2
SURROUND L+
SR-
3
SURROUND R-
SR+
4
SURROUND R+
FL-
5
FRONT L-
FL+
6
FRONT L+
TO SPEAKERS
FR-
7
FRONT R-
FR+
8
FRONT R+
C-
9
CENTER -
C+
10
CENTER +
SW-
11
SUBWOOFER -
SW+
12
SUBWOOFER +
3
2
4
L5301
G0B9R5K00004
SW+
1
2
1
SW-
3
4
P1
3 2
1
ZJ5410
6
TO D-AMP
SECTION (2/2)
SA-VK870EE
D-AMP CIRCUIT
13
14
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