Question about Samsung LE32B450 32 in. LCD TV
It sounds that the backlight inverter board has damaged. Check and replace it.
Posted on Jan 16, 2013
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Posted on Jan 02, 2017
I found a fix for this problem on another forum, It's caused by some blown capacitors on the main power board. I have a link to the original post, with step by step pictures for replacing the blown capacitors but don't know if it's ok to post it here. The repair cost me £7.49 for 5 capacitors RS part number 526-1109 and about £4.50 of that was for next day postage. I did the job myself in about 15 minutes and I have no experience with a soldering iron (i even had to borrow one). I replaced 3 capacitors, 2 of which looked blown and one which just looked swollen.
Remove the back off your tv, and just take a look at the small array of capacitors near the top right corner of the centrally situated power board. there are 4 identical capacitors rated at 1000uf 10v 105 degrees C. I think the silver capacitor lids should be flat or even slightly concave. The ones I replaced were all slightly convex and 2 of them had a tiny amount of what looked like brown corrosion right in the centre of the caps.
For a few quid I'm sure you could get someone else to do the soldering if you lack confidence.
The original post also linked to a supplier of the main power board for £130. I didn't mind having a go myself because I figured if I fouled up I could always just buy the board
Posted on Apr 15, 2009
SOURCE: i have a sumsung 50
A common problem for these is bad capacitors in the power supply, Remove the back from your Tv and look at the power supply on the left hand side.
You will see roughly around 9 x capacitors that are bulged / domed shaped on top usually these are valued at 3300uf 10V any that have bulged or leaked a brown like substance should be changed.
This will cure the problem as they overheat being sat next to a heatsink that gets very hot!
Try and change them for the same 3300uf but a higher voltage.
Hope this helps
Posted on Jun 14, 2010
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