LCD TV SERVICE MANUAL - diagramas.diagram...
LCD TV SERVICE MANUAL - diagramas.diagram...
LCD TV SERVICE MANUAL - diagramas.diagram...
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13. In case of becomes unusual display from RF mode(Sub)<br />
Is normal the I2C communication ?<br />
(Check Pin5, Pin4)<br />
YES Is normal the Input voltage ? YES<br />
(Check Pin8, Pin6)<br />
Is the Tuner Cable<br />
connected well?<br />
NO<br />
Is normal video output<br />
of the Tuner?<br />
(Check TU201_Pin14)<br />
NO NO<br />
NO<br />
Change the Tuner<br />
Check the power<br />
( L1103)<br />
Cable inserts well.<br />
YES<br />
B<br />
Is normal the<br />
I2C communication ?<br />
(Check R309, R310)<br />
YES Is normal the Input voltage ? YES<br />
(Check L308)<br />
Is normal video<br />
output of CXA2069Q?<br />
(Check R312, In case of S-Video<br />
check R312, R314)<br />
Copyright © 2007 LG Electronics. Inc. All right reserved.<br />
Only for training and service purposes<br />
NO NO<br />
- 20 -<br />
Change the IC(IC300)<br />
Check the power<br />
( Check L1004)<br />
YES<br />
NO<br />
Cable inserts well<br />
Is the LVDS Cable<br />
connected well?<br />
YES<br />
Change the IC(IC700)<br />
14. In case PIP doesn’t display from other modes(Sub)<br />
Same as the case of main except block A should be change to B<br />
LGE Internal Use Only
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