8-5
PL10.5TR
Replace Digital Main CBA Unit, FRC CBA Unit or LCD
Module Assembly.
Is 5V voltage supplied to the Pin(2, 29, 33, 39, 44) of IC2701?
Is 8V voltage supplied to the Pin(12) of IC2701?
Replace IC2701.
Check P-ON+5V, P-ON+8V line
and service it if defective.
Yes
No
Yes
Yes
FLOW CHART NO.3
Picture does not appear normally. (EXT. input)
FLOW CHART NO.4
Picture does not appear normally. (Tuner input)
Are the video signals inputted to each pin of IC2701?
Check the line between video input terminal and
each pin of IC2701.
Are the video signals outputted to each pin of IC2701?
Yes
No
No
No
IC2701
VIDEO-IN 1
3PIN
IC2701
Y-IN 1
1PIN
IC2701
CVBS/Y/S-Y-OUT
38PIN
IC2701
Pb-OUT
36PIN
IC2701
Pr/S-C-OUT
34PIN
IC2701
C-IN 1
9PIN
IC2701
VIDEO-IN 2
7PIN
IC2701
Y-IN 2
5PIN
IC2701
C-IN 2
11PIN
IC2701
COMPONENT-Y-IN
41PIN
IC2701
COMPONENT-Pb-IN
45PIN
IC2701
COMPONENT-Pr-IN
VIDEO-IN 1
Y-IN 1
C-IN 1
VIDEO-IN 2
Y-IN 2
C-IN 2
COMPONENT-Y-IN
COMPONENT-Pb-IN
COMPONENT-Pr-IN
50PIN
IC2701
3PIN
IC2701
1PIN
IC2701
9PIN
IC2701
7PIN
IC2701
5PIN
IC2701 11PIN
IC2701 41PIN
IC2701 45PIN
IC2701 50PIN
→
JK2703
→
JK2702
→
JK2702
→
JK2707
→
JK2706
→
JK2706
→
JK2714
→
JK2715
→
JK2716
Check the line between Pin(3, 4) of CN2102 and TU2301,
and service it if defective.
Are the DIF signal inputted to Pin(3, 4) of CN2102?
Replace Digital Main CBA Unit, FRC CBA Unit or LCD
Module Assembly.