Question about Samsung 57" Tft-LCD Monitor TV
Ihavea 40"Samsung ldc Model # LN840510 It will not turn on. The right light flashes with clicking sounds but does not power up. I heard that was a common problem with the capicitors. Can you help. Will samsung give me the parts? linda
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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: Samsung LN-T4032H
This is the capicator $1.50. You have to take off the back, sauter off the capicator (you'll see it because it is poking out) and sauter on the new one. I found the fix on this web-site.
Posted on Oct 04, 2009
if you can do soldering work, replace two 1000uF10v bulging capacitor with 1000uF 16v or 25v in powersupply board. you will save $200.
Posted on Nov 12, 2009
SOURCE: samsung 40" tv not coming on
I would check out the power supply module for bad caps with bulging tops. Check DC voltages at the output connectors, you should have 5, 12, 24V.
Posted on Jan 08, 2010
Testimonial: "This seems to be a common fault on these tv's. I probably wont attempt to fix myself even though the warranty has ran out. Thanx "
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