Forum > LCD TV forum
Samsung LE40R87BD LCD TV - relay clicking repeatedly but wont start
tv john:
My advice is to let a tv engineer repair your lcd tv. I have seen an amateur destroy a tv before and I don't think your house insurance woukd pay out if a fire was the end result.
Remember there are high voltages inside,even in LCD tv's.
Just ask any firefihgter, who can warn you about tv's smouldering and the outcome.
John.
chips01:
Ok the capacitors have been changed now and the tv comes on fine without any problems. I have noticed now however that switching from different sources there does seem to be a small fault, tv-dvd is fine but then going from dvd to another source it seems to freeze for a few seconds and then turns over ( not really mind about it that much ), also when I change the mode to movie the picture is very awful in the way that the background is grey and the main subjects on screen are made up of hundreds of different colours, almost dotty like ( if that makes sense ) again its not too much of a concern as at least I have the tv working again.
I was wandering if I should have got all the capacitors changed ( only changed 4...3 were faulty but all being the same type and voltage I thought it best to change them all ) I kept 3 original ones in there as 2 were of a higher voltage and they were fine and there was 1 smaller one which was a 220uhf not sure on voltage on this one though. Would/could this smaller one be causing problems now that I have upped the voltage on the other 4?
Photo attached to show what I mean, and sorry for making this post a bit long
Also attached is photo of the tv in movie mode
daz:
if your lucky youve just corrupted the eprom,if your unlucky youve trashed the main signal pcb
but try a new eprom first.
its very important not to run these sets for very long with this psu fault (a long time is 15 seconds)
many customers leave them clicking away for hours hopeing they will start even after they have been told not to do this,causeing damage to the signal pcb.
you can set the software up manualy if you can get a set of paramaters,i have them writen down for a similar set which i can let you have but there may be some important differences.
hope this helps
daz
chips01:
daz
The clicking has stopped with the new capacitors and all seems fine except as in my previous post regarding the picture on movie mode, surely if there was a fault with eprom or psu the picture would be bad on any setting??
theo laird:
Daz is spot on. The service menu will be corrupt. This signal panel is used also with hardware and software modifications on plasma models as well as lcd, if they have gone corrupt to plasma settings there could be your problem. There are 21 separate adjustments for Wide/Movie mode alone. It is highly likely they will be needing reset after your PSU problem. You need a copy of all 10 pages of the settings to be sure, then compare yours with the default from the service manual copy.
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