Re: SAMSUNG PLASMA 50INCH PS50Q7HD No Picture
Hi all, back again.
Been away as I have had spinal surgery which has taken weeks to recover...... Now back to RL and this bleeding TV!
I have checked the fuses as suggested and all seem well. More suggestions are welcome. I am still a little concerned that LED 2000 is permanently on, while 2002 flashes (like an indicator) on the control/logic board.
Also the X-main syncs are definitely hotter than the Y-main as I have had the TV on for over an hour today listening to the sound.
Could...
Tobinuk
New Member
Last Activity: 05-17-2015, 09:58 AM
Joined: 03-24-2015
Location: Norwich
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Re: SAMSUNG PLASMA 50INCH PS50Q7HD No Picture
I had the TV on for another hour today as I thought I would see how the heatsinks felt. The Ymain board felt cool to touch and the Xmain was mildly warm. I was able to keep my hand on it put it that way!
I am open to more suggestions....... Thanks again for your time!Leave a comment:
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Re: SAMSUNG PLASMA 50INCH PS50Q7HD No Picture
Hi Tom66,
The TV does not have any glow whatsoever. I checked yesterday evening by wrapping our curtains, over my head too see if there were any flecks etc....
...... But No Go.......Or should i say Glow
And so it continues.........Leave a comment:
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Re: SAMSUNG PLASMA 50INCH PS50Q7HD No Picture
WOW.... Did that take forever to upload!
Don`t think it was set to private. I premature-posted on forum before video uploaded...... Please try again
Leave a comment:
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Re: SAMSUNG PLASMA 50INCH PS50Q7HD No Picture
Thanks for the replies everyone!
I have posted a video on YouTube..... Which took me a while to get round too
As an update I have retested all Va, VSC,Vs,Ve & Vset voltages and all of them are spot on. I noted in my video below that I spotted a Green LED which was on Solid LED2000 & another LED which Flashes LED2002.
As it was on the Contolboard I thought it was Suspicious at first!
I don`t think LED 2000 is anything to worry about now! [B]Correct me if im wrong??!![/B]...Leave a comment:
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Re: SAMSUNG PLASMA 50INCH PS50Q7HD No Picture
Thanks
I checked all the voltages to and from powerboard and compared them to the panel sticker inside TV. The voltages were as stated on panel sticker, although there was a marginal 2v under.
I also checked the voltage coming out of the powerboard to Ymain etc and those vsc voltage etc were also fine....... as above?!
Hmmmm indead!
(TV Panel back on and away until morning more testing tommorow)Leave a comment:
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Re: SAMSUNG PLASMA 50INCH PS50Q7HD No Picture
Thank you for the interest Alastair.
The Y board does not have any led on.....
Although there was a green led on a board underneath the scart/audio board?!
I only noticed it tonight as I happened to move the TV before I put it away. Is this other board (underneath scart/hdmi/audio board) the control board?
Could this cause no picture?
As I have said before the voltages all appear to be ok, wondering if it Xmain??
Any input appreciated
...Leave a comment:
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SAMSUNG PLASMA 50INCH PS50Q7HD No Picture
Hi all,
(Sorry for long detailed post)
I hope someone could help me out? I have a SAMSUNG PLASMA 50INCH PS50Q7HD which I bought secondhand 4-5 weeks ago. The t.v was a spares & repairs job (£40) and I understood at the time it had no picture... But it had sound. I purely bought it as I have fixed a few smaller tvs in the past.
I did a bit of research before buying it and read on the net it was probably the Ymain & buffer boards faulty and a quick look on ebay prompted me into getting the tv as spares were available. On getting the tv home (after... -
Re: New Members - please post your introductions here
Hi all,
Looking forward to getting posting on this forum as it seems like the only one that makes sense in joining! I`m a mechanic by blood, stress head by nature and a have a go Jo!Leave a comment:
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