Pioneer SC-LX81 Service Manual page 44

1
F
A
TXMCK
IC301(Pin 5)
No
Is there a
CLK?
Yes
TXWS, TXSCK
IC301(Pins 10,11)
B
No
Is there a
CLK?
Yes
TXSD0
IC301(Pin 9)
No
Is there a
Data?
C
Yes
TXMCK
IC351(Pin 5)
No
Is there a
CLK?
Yes
D
TXWS, TXSCK
IC351(Pins 10,11)
No
Is there a
CLK?
Yes
TXSD0
IC351(Pin 9)
E
No
Is there a
Data?
Yes
TO STEP 4-1
F
44
1
2
J1
Check the parts and patterns in
the path (CN201 - IC251 and
IC251 - IC301).
No
Replace IC251.
J1
Check the parts and patterns in
the path (CN201 - IC251 and
IC251 - IC301).
No
Replace IC251.
J1
Check the parts and patterns in
the path (CN201 - IC251 and
IC251 - IC301).
No
Replace IC251.
J2
Check the parts and patterns in
the path (CN201 - IC251 and
IC251 - IC351).
No
Replace IC251.
J2
Check the parts and patterns in
the path (CN201 - IC251 and
IC251 - IC351).
No
Replace IC251.
J2
Check the parts and patterns in
the path (CN201 - IC251 and
IC251 - IC351).
No
Replace IC251.
2
3
SC-LX81
3
4
4