LG 42LB5RT, Service Manual

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15. In case of becomes un
usua
l d
isplay
from comp
onent1 mo
de(main/sub)
16. In case of becomes un
usua
l d
isplay
from component 2 mode(main/su
b)
17. In case of becomes un
usua
l display
from RGB mode(main/sub)
Is normal video
input
of the JK102?
(Check L126, L127, L128)
Check the input source
Is normal video
input
of the JK103?
(Check L129, L130, L131)
Is normal R, G, B input
and H,V s
ync
of the JK500?
(Check R509, R511, R512
R513, R5
15)
Check the input source Check the input source
Chan
ge IC(IC7
00)
Chan
ge IC(IC7
00)
Chan
ge IC(IC7
00)
YE
S
NO
YE
S
NO
YE
S
NO