Missing Scan Line


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Missing Scan Line

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Tom9589
New User

May 6, 2016, 3:06 PM

Post #1 of 3 (2650 views)
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Missing Scan Line	Can't Post

New to working on flat screens, but no stranger to repairing analog TVs (paid for all my college tuition).

I'm working on an Insignia 24" LCD with fluorescent backlight. It appears that I am missing one horizontal scan line about 1/2" from the top of the screen.

What are the possible causes?

1. Bad flat screen
2. Bad driver circuitry
3. Bad connection

Thanks for any advice or help.

Tom (I still miss tubes and high voltage)

jts1957
Veteran

May 6, 2016, 3:37 PM

Post #2 of 3 (2645 views)
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Re: [Tom9589] Missing Scan Line [In reply to]	Can't Post

Bad panel (try gently 'racking')
Bad tcon board (or bad connection of a ffc that connects Main Board to tcon)
Main board

6GH8

-------------------------
Location: Far, Far Away

(This post was edited by jts1957 on May 6, 2016, 3:39 PM)

Tom9589
New User

May 6, 2016, 6:29 PM

Post #3 of 3 (2637 views)
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Re: [Tom9589] Missing Scan Line [In reply to]	Can't Post

No, I don't miss the 6GH8. Give me a 6U8 or 6EA8 anytime.

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