43
SC-LX81
5
6
7
8
5
6
7
8
A
B
C
D
E
F
E
F
IC202(Pin 1)
RXMCK
MCLK
I4
Is there a
CLK?
No
Check the parts and patterns in
the path (IC101 - IC202).
No
Replace IC101.
(DVD-A/Multi ch)
R115(Pins 1-4)
R223(Right Side)
RXSD0-3
I8
Is there a
DATA?
No
Check the parts and patterns in
the path (IC101 - IC201).
No
Replace IC101.
Yes
CN201(Pins 7,8)
HBCLK,LRCK
I4
Is there a
CLK?
No
Check the parts and patterns in
the path (IC201 - CN201).
Check the soldering of IC201,
L207 and Control Signal.
No
Replace IC201.
Yes
I5
Is there a
CLK?
No
Check the parts and patterns in
the path (IC202 - IC208).
Yes
Yes
Yes
CN201(Pin 10)
I4
Is there a
CLK?
No
Check the parts (IC204 is a Side B)
and patterns in the path
(IC208 - IC204). Check the
soldering of IC204, L202 and R208.
Yes
R137(IC201 Side)
I6
Is there a
CLK?
No
Yes
R116(IC201 Side)
HMCK
RXWS
RXSCK
I7
Is there a
CLK?
No
Check the parts and patterns in
the path (IC101 - IC201).
CN201(Pins 3-6)
H(F.C.S.B)ADAT
I4
Is there a
DATA?
No
Check the parts and patterns in
the path (IC201 - CN201).
Check the soldering of IC201,
L207 and Control Signal.
No
Replace IC201.
No
Replace IC202.
No
Replace IC204.
Check the parts and patterns in
the path (IC201 - CN201).
Check the soldering of IC204,
L202 and Control Signal.
No
Replace IC201.
No
Replace IC101.
Check the parts and patterns in
the path (IC101 - IC201).
No
Replace IC101.
Yes
Yes
Yes
Step 3-9: AUDIO CLK, DATA
( HDMI:THROUGH MODE, ANALOG
VIDEO FUNCTION)
CN201(Pin 18)
BMCLK
I3
Is there a
CLK?
No
Diagnosis the INTERFACE ASSY
or D-MOTHER ASSY.
Diagnosis the INTERFACE ASSY
or D-MOTHER ASSY.
CN201(Pins 20,21)
BLRCK, BBCK
I3
Is there a
CLK?
No
Yes
CN1002(Pin 5)
HDMUTE
I9
Is the voltage
"L" (0 V)?
Diagnose the INTERFACE ASSY or
D-MOTHER ASSY.
No
Check the parts and patterns in
the path (IC501 - CN1002).
No
Replace IC501.
Diagnosis the INTERFACE ASSY
or D-MOTHER ASSY.
Yes
CN201(Pin 22)
BFADT
I3
Is there a
DATA?
No
No
