TV problem

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Im not sure if its the right place to ask this but....

My friend's tv is kinda intermitent. The image goes out and reapear when he hits side panels. He thinks it has something to do with the powercord. I ain't sure if he's right but assuming it could be a connection problem, which part needs to be fixed exactly?
 
:cop:

We do not allow the posting of TV repair information for safety reasons. The posts dealing with this have been moved to Texas.

The voltages involved, along with fragile and dangerous objects like picture tubes, make this sort of thing dangerous for novices. Death is permanent.
 
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