![LG 50PT81 Service Manual Download Page 20](http://html.mh-extra.com/html/lg/50pt81/50pt81_service-manual_1901815020.webp)
- 20 -
LGE Internal Use Only
Copyright©2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
6. In the case of an unusual display in rear S-Video mode(Main).
Is the video input
of the A/V jack normal?
Yes
Sam as Block A
Check the input source.
No
7. In the case of an unusual display in Side AV mode(Main).
Is the video input
of the A/V jack normal?
Yes
Sam as Block A
Check the input source.
No
8. In the case of an unusual display in Side S-Video mode(main).
Is the video
input of the A/V jack
normal? (Check R339,
R341,L310)
Yes
Sam as Block A
Check the input source.
No