Pioneer VSX-917V-K Service Manual page 102

1
B
A
SDTO (Data)
IC601 (Pin 25)
Is there
No
a data
output?
(0 V ⇔ 3.3 V)
Yes
BCK (Bit clock)
IC601 (Pin 26)
Is there
No
a bit clock
B
output?
(0 V ⇔ 3.3 V)
Yes
IC551 (Pin 4) LSFD (data)
Is there
No
a data
output?
(0 V ⇔ 3.3 V)
Yes
C
IC601 (Pin 7) LSBK (Bit clock)
Is there
No
a bit clock
output?
(0 V ⇔ 3.3 V)
Yes
IC601 (Pin 12) LSBK (LR clock)
Is there
No
a LR clock
output?
D
(0 V ⇔ 3.3 V)
Yes
MCLK (Master clock)
IC601 (Pin 9)
Is there
No
a master clock
output?
(0 V ⇔ 3.3 V)
Yes
E
To Step 7
F
102
1
2
Replace IC601.
Replace IC601.
• AWX8809 only
Is the
No
voltage of
IC551-pin 1
0 V?
Check the path
Yes
between IC551-pin 1
and microcomputer.
Replace IC551.
2
3
Step 7: DSP output (digital)
Digital output of each CH when inputting the digital
signal with audio.
IC801 (Pin 4)
Is there
a data output?
(0 V ⇔ 3.3 V)
Yes
IC801 (Pin 5)
Is there
a data output?
(0 V ⇔ 3.3 V)
Yes
IC801 (Pin 6)
Is there
a data output?
(0 V ⇔ 3.3 V)
Yes
IC801 (Pin 7)
Is there
a data output?
(0 V ⇔ 3.3 V)
Yes
Digital output of each CH when inputting the digital
signal (-∞ dB (no audio)).
IC801 (Pin 4)
Is the output
0 V fixing?
Yes
IC801 (Pin 5)
Is the output
0 V fixing?
Yes
IC801 (Pin 6)
Is the output
0 V fixing?
Yes
IC801 (Pin 7)
Is the output
0 V fixing?
Yes
To Step 8
VSX-917V-K
3
4
SurroundBack L/R data
No
Replace IC801.
Center/LFE data
No
Replace IC801.
Surround L/R data
No
Replace IC801.
Front L/R data
No
Replace IC801.
SurroundBack L/R data
No
Replace IC801.
Center/LFE data
No
Replace IC801.
Surround L/R data
No
Replace IC801.
Front L/R data
No
Replace IC801.
4