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Discuss Samsung lcd tv in the UK Electrical Forum area at ElectriciansForums.net

4 radial elecro ones? what values and V's and I will have a rummage around in the boxes next time I'm in the spark lab......

I prefer to use self fluxing silver solder when re-doing electrolytic caps, then I put a dod of hot melt glue on the side to fix them as well....silver solder gives a good contact with the surface on the track pad once you have the old solder off with de-soldering braid....no need for laquer spray or anything

Another thing I do is to use the (red) hot run caps (rubycon or similar) which have a good tolerance to the heat build up of the inside of a power pack....they are made for hot running, power packs are hot running in a lot of instances...standard capacitors dry out a lot more quickly...

if you ever have dried caps in a power supply and need temporary use in an emergency until your spares arrive(or your new power pack, if not keen on repairing) for example to use your laptop then an old trick is to tie the power pack (minus the mains lead if it detaches preferably) into a carrier bag, put it into the freezer for 45 minutes, take it out and it will work, after switching off, it will not work again unless you stick it back in the freezer, but as long as it is powered on it will function.....this is just a last resort fix and obviously you would be better to unplug after every use and go to the freezer trick each time round until either repaired or replaced.....don't ever let the power pack get wet...

using the freezer to chill the unit alters the electrolyte properties of the remaining electrolyte in the capacitors and brings it within functioning levels for a single use, once run up to working temperature this needs to be redone after unplugging/switching off...

45 minutes is a good time to allow the cold to work it's way through the casing and into the metalwork, components etc.....but forgetting about it and leaving too long can result in bursting of capacitors and condensation inside that can cause damage...so 45 minutes is ideal...
but works at high tempretures
 
Cheers G! After hours of trawling RS I found suitable jobbies, but now I think I've lost me part numbers!!! Numpty! The thing is a Time Capsule or something, but she now saying she just wants the disc, so we'll see! What an appalling design the thing is though, from heat dissipation view!. We took it to an Apple centre the other day, guy just says it's dead, REALLY! Wan...... addition Good to know there's some electronics geezers on here, prepare to get brains picked!
I have detailed files..... but that makes you a more efficient fixing machine... Affirmative....
 
Evening all, would any of you kind people know what the cause would be for my samsung 40 " tv to have sound but no picture? There's nothing there, the screen is just black. It was working quite happily yesterday but i've just got in and switched it on and this has happened.
pop a good photo of the Circuit board on here if you can, would be good if there is a bit of a closer photo of the board where the cable to the screen is connected as well......then I can get to scheming up a repair plan...
 
If u have a hotline number for Samsung call them and tell them ur problem they have repair warehouses u can take ur faulty Samsung goods to, I bought a Samsung cinema surround system a few years back, got the number of 1 of the booklets that came with it gave them a call after giving them a round of ****s over the phone and they gave me the number for one of the repair places they have, it were'nt all that far from where I live either, I haven't got the number now but like I said if u got the Manuel and whatever came with ur tv check it out, hope this helps u mate!
 

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