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Tim Nolan
Tim Nolan, TV Repair Technician
Category: TV
Satisfied Customers: 19454
Experience:  Factory trained TV repair technician. U.S. NAVY trained.
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Same set-put in main-same problem-how do you determine between

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Same set-put in main-same problem-how do you determine between tcon and display?
Hi,

So the menu must be affected by the problem then?

Tim
Customer: replied 3 years ago.

It didn't seem to be but it must be-while the menu is on and it is searching for channels the actual color of the surrounding raster does change colors

OK then you have either a bad t-con board or a bad panel. cannot be anything else.

Judging between the panel and t-con is tricky though, there is no test for this.

You see the t-con has two ribbon cables going to the panel? You can try hooking only one up at a time and see if half the screen shows perfect or not.

If both show the same thing then it could still be either the t-con or the panel...if one half shows perfect then the panel is the problem. This test normally does not produce a result though. Most of the time you have to just try a t-con and see. There is no test between those two.

Tim
Customer: replied 3 years ago.

Unhooking one side makes that side bright white and the other side the same as before with slow motion at times. Unhooking the other side makes that side bright white and the other side very faint video with bright behind it

That actually sounds like a bad LCD panel.

You have no way of getting me a picture of the problem?

Tim
Customer: replied 3 years ago.


no-sorry I don't

Troubleshooting a video problem without seeing it is quite difficult. From your description of the t-con ribbon cables unplugged one at a time...its sounding like a bad LCD panel though. Tim

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