pixels on screen (only with satellite?)

[Bosox1]

TV (Samsung HLN5065W) turns on and works fine for a while. Then the screen freezes with black and white pixels. Only seems to do it with satellite selected as input. I have changed satellite receivers and cables. Tried DVI and RGB. DirecTV says it sounds like the TV (I agree) but Samsung repair says it is a satellite problem (of course). I just want to know what to try or who to call. Hate to throw it away if works for everything else. Take a look at Brandon issue May 1-2, 2009. There was a good pic there. Let me know if you need more info. Quicker reply to Landuyt2713@msn.com

[grayfox]

Hello,
This sounds like an issue with the signal (sat) and the settings on your TV it may not be supporting, do you have your TV setup to full 1080?
This can also be an issue with your input board, you say you have tried DVI and RGB, can you try a more analog input like a coaxial cable?
Hope I can help!

[Bosox1]

I believe I am on 1080. I was told to try to change from/to 1080p or i but cannot remember which way to go. I was told it was DMD board. I was told it is Digital Signal board. I was told a lot of things. I notice it with DVI and I notice it with RGB and have changed the RGB to different inputs. Still have the issue and only with satellite. I will see if I can find how to change the 1080 to/from p or i, and will try coax. Thanks for the input and I will get back to you when I try that. E-mail is LANDUYT2713@msn.com

[grayfox]

good luck, I am starting to think it is an issue with the Sat box output... but let me know and feel free to PM me! :mrgreen:

[spgrath]

we are having the same issue with our same model tv. We have replaced the lamp and the color wheel just today. Still the pic freezes. We do not have sattlelight.Any other ideas?

[grayfox]

if the picture freezes and its not the input it is definitely a DMD board issue..

[spgrath]

Do you have any idea what that would cost me? Is this something that I can do myself?

[grayfox]

yes definitely, the bad news is that they regularly sell these assembled complete with the light engine / optical block which is pricey! (like 700$) but I've found them under 300$ at www.discount-merchant.com and there's nothing to cut or solder, just some screws and plugs it swaps in and out!

[spgrath]

Thnk you so much I will try this.I apprecaite you taking the time to help me. Thanks again.

[grayfox]

Sure thing no worries! :mrgreen:
hopefully you can get your tv up and running for a couple more yrs ;) let me know if you need any installation tips :geek:

[Bosox1]

Ok. From my standpoint. I have run the satelite through a VCR to get coax to the TV. Seems to work fine, no freeze. So I ran RGB from VCR to TV and that too seems to work. Why does the VCR in line make a difference? Will I still get HD if I run through the VCR? Hey SPGRATH - did your repair work?

[grayfox]

hello bosox,
It can be a problem with the input board... when you changed the inputs the problem went away completely?

[Bosox1]

When I run the satelite through the VCR, the problem goes away. NO freeze. Is the picture still 1080 HD out of the VCR? And Thanks!

[grayfox]

depends on the model, but if the signal is just relayed through the VCR the TV might be able to display at 1080 without loosing a bit of quality... frankly this is the first time I hear about this "fix it" nice work! 10 for ingenuity :D

[Bosox1]

I guess I don't know really what I did but thanks for all your help! If it doesn't work, I will be sure to look you up! :roll:

[grayfox]

:D here to help!

[Bosox1]

I'm back! Not working again. Not even with coax. I am going to try to take the cover off and blow out the dust. Any ideas on the part that needs replaced? It also started freezing on other inputs, like Wii. I am guessing at this point, it is time for a new TV? :x

[grayfox]

Well it would be a shame to throw out such a big screen :cry:
Since the image is freezing at this point, after you dust the interior I only suspect the DMD board. :o And most of the times that requires the light engine to be replaced :shock: which runs about 200 USD...