Pioneer VSX-1017AV-K Service Manual page 39

5
Step 6: XM/DT
IC401 (Pin 37) XMFD (data)
Is there No
Replace IC401.
a data output?
(0 V ⇔ 3.3 V)
Yes
XMBK (Bit clock)
IC401 (Pin 39)
Is there
No
a bit clock Replace IC401.
output?
(0 V ⇔ 3.3 V)
Yes
XMLR (LR clock)
IC401 (Pin 41)
Is there
No
Replace IC401.
a LR clock
output?
(0 V ⇔ 3.3 V)
Yes
IC401 (Pin 43) XMMK (Master clock)
Is there
No
Replace IC401.
a master clock
output?
(0 V ⇔ 3.3 V)
Yes
IC551 (Pin 4) LSFD (data)
No
Is there
a data output?
(0 V ⇔ 3.3 V)
Yes
LSBK (Bit clock)
IC551 (Pin 7)
Is there
No
a bit clock
output?
(0 V ⇔ 3.3 V)
Yes
LSBK (LR clock)
IC551 (Pin 12)
Is there
No
a LR clock
output?
(0 V ⇔ 3.3 V)
Yes
IC551 (Pin 9) MCLK
(Master clock)
Is there
No
a master clock
output?
(0 V ⇔ 3.3 V)
Yes
To Step 7
5
6
Is the
No
voltage of IC551-
pin 1 3.3 V?
Yes
Replace IC551.
Check the path between
IC551-pin 1 and the
microcomputer.
VSX-1017AV-K
6
7
Step 7: LIPSYNC
Control waveform when the amount of delay is changed.
LSSDA (data)
IC801 (Pin 24)
Is there
No
Check the MAIN Assy, and parts
movement (0 V
and patterns in the path.
⇔ 5 V)?
Yes
LSSCL (clock)
IC801 (Pin 23)
Is there
No
Check the MAIN Assy, and parts
movement (0 V
and patterns in the path.
⇔ 5 V)?
Yes
Check that the data and clock signals are output.
LCKI (LR clock)
IC801 (Pin 31)
Is there
No
Replace IC651.
a LR clock
output?
(0 V ⇔ 3.3 V)
Yes
BCKI (Bit clock)
IC801 (Pin 30)
Is there
No
Replace IC651.
a bit clock
output?
(0 V ⇔ 3.3 V)
Yes
IC801 (Pin 29) FDTI (data)
Is there No
Replace IC651.
a data output?
(0 V ⇔ 3.3 V)
Yes
To Step 8
7
8
A
B
C
D
E
F
39
8