"hoo-dair hoo-dat" hoo dair hoo writes:

Depends if ya used match or lighta for burn in.
"Rick Jones" wrote in message
...
My Mitsubishi has a series of black dots spaced at regular intervals
running diagonally across the screen and then repeating again on the
lower part. A tech that came out said it was burn-in and would not be
covered under my warranty. I've seen burn-in on TVs and monitors before
and it has never had solid black dots like this, plus I have not ever
had any sort of static picture on the screen for any length of time that
could have caused burn-in.
This reminds me of a RAM chip on a computer display card with a bad
column address line. Does my HDTV have a digital frame buffer that could
have failed like this? Is there any sort of built-in diagnostic I could
access to test it?

That certainly doesn't sound like burn-in. What could you have been
displaying, a diagonal dot pattern for 3 months straight?

If the TV does progressive scan from NTSC, it has a frame buffer.
Switch between interlaced and progressive scan if that's an option - I
bet the locations of the dots moves.

If it can handle multiple formats, it probably has a frame butter.

Can you adjust things like position on the screen? If so, the dots
will move with the picture if it's a digital problem.

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