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HLS4266W Horizontal lines
Posted: Sat Aug 14, 2010 9:57 am
by ribowman
This was initially mistakenly posted in the projector forum. We have a Samsung HLS4266W about 4 years old. About 6 months ago we began to see thin horizontal black lines, about 4 of them. The issue has gotten progressively worse to the point that we now have many thicker horizontal lines that seem to change from a good picture to almost no picture, sort of like the horizontal hold on older tvs. Any help would be greatly appreciated.
Rick Bowman
Ball Ground, GA
Re: HLS4266W Horizontal lines
Posted: Mon Aug 16, 2010 3:06 pm
by darkart77
The lines are a common and frequent sign of the DMD board. Place an advanced search to see other people's solution and problems. Just enter as key word vertical lines.
Re: HLS4266W Horizontal lines
Posted: Tue Aug 17, 2010 12:28 am
by ribowman
Thank you. Based on other posts it sounds like the DMD board. However, another responder wrote that Samsung changed DMD's in October 2006. The TV I have was purchased in November 2006. Should I find a p/n on the existing board to verify the correct p/n or can I assume the model # will reflect the right part to be ordered?
Again, thank you for any help.
Rick Bowman
Ball Ground, GA
Re: HLS4266W Horizontal lines
Posted: Tue Aug 17, 2010 1:26 am
by cdwatters
Depending on the vendor you are working with. I'd recommend taking a very clear digital photo of the front and back of the DMD and emailing it.
Re: HLS4266W Horizontal lines
Posted: Tue Aug 17, 2010 2:56 pm
by darkart77
Totally agree with ribowman
Re: HLS4266W Horizontal lines
Posted: Sat Aug 21, 2010 12:13 pm
by ribowman
Update - cart before the horse moment. I started to remove the back of the tv to photo the DMD board and on a whim decided to test the screen with a DVD movie.
The DVD movie plays perfectly with no lines or horizontal distortion.
Do I still need to look at the DMD? Is the signal process different via a DVD player?
Help!
Rick Bowman
Ball Ground, Georgia
Re: HLS4266W Horizontal lines
Posted: Mon Aug 23, 2010 3:04 pm
by darkart77
hmmm :cry: very strange. Yes, the DVD uses a different signal like you put it. Tell me has anything in the environment changed? like a micro wave, bug antennas, anything out of the ordinary that may be affecting the reception on your set.
WHEN DID THIS START OCCURRING?
Re: HLS4266W Horizontal lines
Posted: Sat Aug 28, 2010 10:20 am
by ribowman
No environmental changes that I am aware of. We have not made any modifications or added any appliances. Since we live in the middle of 80 acres I doubt there are any outside forces at work. We have another TV on the same system with a separate cable box that works fine The boxes have been swapped just to rule that out, no change.
As to a point in time when it started we're not exactly sure. It has been gradually getting worse over a period of weeks.
RIck Bowman
Ball Ground, GA.
Re: HLS4266W Horizontal lines
Posted: Tue Aug 31, 2010 11:58 pm
by darkart77
You know? Im thinking the DMD board, truly the only thing that can produce the symptoms your tv is having.
Re: HLS4266W Horizontal lines
Posted: Thu Sep 09, 2010 1:26 am
by alex0101
does your DLP has an HDMI or DVI input? connect something to it and see if you still see horizontal lines. If you don't see the lines with DVI/HDMI input, then your DMD board is good
Another test is , with no input signal, press the menu or input selector of the tv If you see the menu or input selector display good, then your DMD board is good