Pioneer VSX-2016AV-S Service Manual page 214

1
QQ
3 7 63 1515 0
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
TE
L 13942296513
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
37
XM
XMDT
18,19
IN
IC501
43
F2602E-01
CN801
7
14,15
E
F 13
17
www
B 10
S 11
C 12
F
214
1
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2
For the following diagnosis, a digital
oscilloscope must be used.
Check the parts and patterns
in the path.
: I2S MCLK
: I2S DATA (2ch)
: I2S DATA (compression or 2ch)
: I2S LRCK, MBCK
1
R
ADC
2 IC481
L
8ch DAC
AK5358ET
IC401
AK4359VF
11 9
10,12
15 23 28
24,26
29
30
DIR 1
2,4
IC301
42,44
AK4114VQ
1,3,5,
7,48
23 25 24,26
11 2
5,14
6,13
3
SW
IC601
10
74VHC157
9 4 7,12
11 2
5,14
6,13
SW
3
IC651
10
74VHC157
9 4 7,12
x ao
y
. i
VSX-2016AV-S
2
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3
8
G
DSP ASSY
24
FR
25
FL
21
SR
22 Analog 8ch OUT
SL
Q Q
19
SW
3 6 7 1 3
20
C
17
SBR
SBL 18
F S C B
3 9 10 11
7 6 5 4
F S C B
77,79
2nd DSP
IC201
DSPC56371AF180
X551, IC551
20MHz
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
FLASH ROM
1st DSP
AYW7128
IC101
ADSP-21266
SKSTZ-2D
88,89
78
(8bit×512kW)
94
B S C
81 79 80
u163
.
3
4
2 9 9 4 2 8
: Control/Memory bus line
:Analog audio signal
: SPDIF, operating clock
CN402
5 FR
FL
7
9 SR
SL
11
1 5 0 5 8 SW 2 9 9 4
13
C
15
SBR
17
SBL
19
CN901, CN951
CN952
Control in
Control out
IC106
SRAM
IC107
4Mbit
m
co
4
9 9
2 8 9 9