Read LG 42LB2R (CHASSIS:LP62E) Service Manual online
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13. In case of becomes unusual display from RF mode(Sub)
Insert the cable well.
Yes
Yes
No
Check the power.
(Check L1004)
No
Change the IC(IC300).
No
check the power(L1103).
No
Change the Tuner.
No
Cable inserts well.
Change the IC(IC800).
Is video output
of the tuner normal? (Check
T200_Pin14)
Is the Tunner
Cable connected
well?
Is the Input
voltage(check pin8,
Pin6)
Yes
Yes
No
No
Is
video output
of CXA2069Q normal?
(Check R312, In case of
S-Video check
R312, R324)
Is the LVDS Cable
connected well?
Yes
No
Is normal the
12C communication?(Check
Pin5, Pin4)
Is the
input voltage normal?
(Check L308)
Yes
Is the 12C
communication? (Check
R309, R310)
14. In the case PIP doesn’t display from other modes (Sub)
- Same as the case of main except block A should be chandge to B.
B
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