Question about Projection Televisions

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This is not a projection tv.

The picture is drawing in on both ends. It has gradually gone from l inch to 4 inches on each side.

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I report my posts from other thread:

start going to the video settings menu and do a reset check page 33 of user manual here .

If you are using the TV connected to a computer, see also PC mode control to set display width at page 62


Try doing the reset suggested above, see if they work, leave also the TV unplugged for few hours tonight.

Generally, if the bands appear only for some times , then image expands regularly it is a faulty IC or capacitor, that works fine only after it warms up.
I work on PC monitors etc.I have not serviced your model yet, and I don't have the service manual to follow the troubleshooting diagrams to locate faulty area on the board, test parts and find defective one.

If you want to DIY here is the service manual.

Here you get all parts for your TV.

If you want to call a technician there is a number listed at the end of the user manual.

If I find any free schematics I will post here.

Posted on Sep 06, 2008

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Sounds like a issue or problem with the optical light engine in the set, it is of course the most expensive part.


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What is causing my picture to darken on my samsung 60 inch dlp tv


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Three separate images about 4-5 inch apart on my TV


Symptoms shows TV has problem of faliure of convergence out ICs. (2 ICs in TV) and need to be replaced.Let me know do you want to repair it at your own? ...
... if yes, it is necessary to have experience of TV repair and basic electronics knowledge.

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Dan

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1) In customer menu, adjust all video controls to center,then
increase "picture" to 3/4
2)Locate focus/screen adjust block above chassis...adjust
RGB screen controls for best mixture = B/W tracking..
Check with customer color level at minimum..should look gray.
If you turn screen controls up too much,you will see faint
re-trace lines in picture.....once B/W looks good,put color level
back to middle...................................................T.

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2 Answers

Samsung hcl552w picture leans in on top and bottom


bad convergence ic's
http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

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