Service manual

8-5 FL10.5TR
Replace Digital Main 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.
Ye s
No
Ye s
Ye s
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?
Ye s
No
No
No
IC2701 VIDEO-IN 13PIN
IC2701 Y-IN 11PIN
IC2701 CVBS/Y/S-Y38PIN
IC2701 Pb36PIN
IC2701 Pr/S-C34PIN
IC2701 C-IN 19PIN
IC2701 VIDEO-IN 27PIN
IC2701 Y-IN 2 5PIN
IC2701 C-IN 2 11PIN
IC2701 COMPONENT-Y-IN41PIN
IC2701 COMPONENT-Pb-IN45PIN
IC2701 COMPONENT-Pr-IN
VIDEO-IN 1
Y- I N 1
C-IN 1
VIDEO-IN 2
Y-IN 2
C-IN 2
COMPONENT-Y-IN
COMPONENT-Pb-IN
COMPONENT-Pr-IN50PIN
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 b
etween Pin(3, 4) of CN2102 and TU2301,
and service it if de
fective.
Are the DIF signal i
nputted to Pin(3, 4) of CN2102?
Replace Digital Main
CBA Unit or LCD Module
Assembly.