VSX-1017AV-K
34
1
2
3
4
1
2
3
4
C
D
F
A
B
E
B
To Step 7
Replace IC601.
Yes
IC601 (Pin 25)
SDTO (Data)
No
Is there
a data
output?
Replace IC601.
Yes
IC601 (Pin 26)
BCK (Bit clock)
No
Is there
a bit clock
output?
(0 V
⇔
3.3 V)
(0 V
⇔
3.3 V)
Yes
IC551 (Pin 4)
LSFD (data)
Is there
a data
output?
(0 V
⇔
3.3 V)
Yes
IC601 (Pin 7)
LSBK (Bit clock)
Is there
a bit clock
output?
(0 V
⇔
3.3 V)
Yes
IC601 (Pin 12)
LSBK (LR clock)
Is there
a LR clock
output?
(0 V
⇔
3.3 V)
Yes
IC601 (Pin 9)
MCLK (Master clock)
Is there
a master clock
output?
(0 V
⇔
3.3 V)
Replace IC551.
Check the path
between IC551-pin 1
and microcomputer.
No
No
No
No
No
Is the
voltage of
IC551-pin 1
0 V?
Yes
Step 7: LIPSYNC
Control waveform when the amount of delay is changed.
To Step 8
Is there
a data output?
Check the MAIN Assy, and parts
and patterns in the path.
Yes
Check that the data and clock signals are output.
Yes
IC801 (Pin 24)
LSSDA (data)
No
Is there
movement (0 V
⇔
5 V)?
Check the MAIN Assy, and parts
and patterns in the path.
IC801 (Pin 23)
LSSCL (clock)
No
Is there
movement (0 V
⇔
5 V)?
Replace IC651.
Yes
IC801 (Pin 31)
LCKI (LR clock)
No
Replace IC651.
Yes
IC801 (Pin 30)
BCKI (Bit clock)
No
Is there
a bit clock
output?
Replace IC651.
Yes
IC801 (Pin 29)
FDTI (data)
No
Is there
a LR clock
output?
(0 V
⇔
3.3 V)
(0 V
⇔
3.3 V)
(0 V
⇔
3.3 V)
