Dsp Block Diagram - Pioneer VSX-2016AV-S Service Manual

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1
A
N
CN951 (Pin 13)
Is the clock
No
signal output while the
voltage at D2CS
is 0 V?
Yes
It is very difficult to diagnose
B
which part is in failure.

DSP Block Diagram

• Signal Block
: KUXJ and KUXJCA types only
C
CN402
Analog IN (L/R)
L
3
R
1
CN301
SPDIF out
1
X301
24.576MHz
JA351
COAX IN (2)
CN301
SPDIF in (5)
10
D
7
XM Block
4
X501
CN901
45.1584MHz
19
26
28
39,41
CN501
XM
XMDT
18,19
IN
IC501
F2602E-01
CN801
7
14,15
E
F 13
17
B 10
S 11
C 12
F
214
1
2
For the following diagnosis, a digital
oscilloscope must be used.
Check the parts and patterns
in the path.
1
R
ADC
2
IC481
L
AK5358ET
AK4359VF
11
9
10,12
15
23
28
24,26
29
30
DIR
1
IC301
42,44
AK4114VQ
1,3,5,
7,48
23
25
24,26
11
2
5,14
6,13
37
3
SW
IC601
43
10
74VHC157
9
4
7,12
11
2
5,14
6,13
SW
3
IC651
10
74VHC157
9
4
7,12
2
3
: I2S MCLK
: I2S DATA (2ch)
: I2S DATA (compression or 2ch)
: I2S LRCK, MBCK
G
24
FR
25
FL
21
SR
8ch DAC
IC401
22
SL
19
SW
20
C
SBR
17
SBL
18
F S C B
3 9 10 11
2,4
7 6 5 4
F S C B
77,79
2nd DSP
IC201
DSPC56371AF180
X551, IC551
73
F1,S80,
45
C58,B59
F S C B
60,62,
1 80 58 59
76,78
64 65 70 71
86,87
F C C B
142
1st DSP
IC101
ADSP-21266
SKSTZ-2D
88,89
78
94
B S C
81 79 80
VSX-2016AV-S
3
4
: Control/Memory bus line
:Analog audio signal
: SPDIF, operating clock
DSP ASSY
CN402
5
FR
7
FL
SR
9
Analog 8ch OUT
SL
11
SW
13
C
15
SBR
17
SBL
19
CN901, CN951
CN952
Control in
Control out
20MHz
FLASH ROM
IC106
AYW7128
SRAM
IC107
4Mbit
(8bit×512kW)
4

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