LG 32LB9RT - Page 20

- 20 -
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Only for training and service purposes
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13. In case of becomes unusual display from RF mode(Sub)
Is normal video output
of the Tuner?
(Check TU201_Pin14)
Is normal the I2C communication ?
(Check Pin5, Pin4)
Is normal video
output
of CXA2069Q?
(Check R312, In case of S-Video
check R312, R314)
Is the Tuner Cable
connected well?
Is normal the Input voltage ?
(Check Pin8, Pin6)
Is normal the Input voltage ?
(Check L308)
Is normal the
I2C communication ?
(Check R309, R310)
Change the IC(IC300)
Check the power
( Check L1004)
Change the IC(IC700)
Is the LVDS Cable
connected well?
Cable inserts well
Change the Tuner
Check the power
( L1103)
Cable inserts well.
B
NO
NO NO
NO NONO
NO
YES YES YES
YES YES
YES YES
14. In case PIP doesn’t display from other modes(Sub)
Same as the case of main except block A should be change to B