47
SC-LX81
5
6
7
8
5
6
7
8
A
B
C
D
E
F
Check the parts and patterns in
the path(IC601 - CN601).
No
Replace L651 and Q651 or the
peripheries of L651 and Q651.
Yes
CN6009(Pin 14)
SC OUT
L1
Is there a
C signal?
No
Check the parts and patterns in
the path(IC601 - CN601).
No
Yes
CN6009(Pin 6)
COMPONENT Y OUT
L1
Is there a
Y signal?
No
Check the parts and patterns in
the path(IC601 - CN601).
Yes
No
Replace IC601.
CN6009(Pin 2)
COMPONENT Cr IN
L1
Is there a
Pr signal?
No
Check the parts and patterns in
the path(IC601 - CN601).
No
Replace L671 and Q671 or the
peripheries of L671 and Q671.
No
Replace L681 and Q681 or the
peripheries of L681 and Q681.
Yes
CN6009(Pin 4)
COMPONENT Cb IN
L1
Is there a
Pb signal?
No
H
*Only 480i/576i input
Check the parts and patterns in
the path(IC601 - CN601).
No
Step 4-6: VIDEO OUTPUT
CN6009(Pin 22)
COMPOSITE OUT
L1
No
Yes
CN6009(Pin 16)
SY OUT
L1
No
Yes
Diagnose the INTERFACE Assy
or COMPOSITE S Assy.
No
Replace IC601.
Diagnose the INTERFACE Assy
or COMPOSITE S Assy.
No
Replace IC601.
Diagnose the INTERFACE Assy
or COMPOSITE S Assy.
Replace L661 and Q661 or the
peripheries of L661 and Q661.
No
Replace IC601.
Diagnose the INTERFACE Assy
or COMPONENT Assy
No
Replace IC601.
Diagnose the INTERFACE Assy
or COMPONENT Assy
No
Replace IC601.
Diagnose the INTERFACE Assy
or COMPONENT Assy
Replace L641 and Q641 or the
peripheries of L641 and Q641.
Check the parts and patterns in
the path(IC601 - CN601).
No
Replace L631 and Q631 or the
peripheries of L631 and Q631.
Is there a
composite
signal?
Is there a
Y signal?