Question about Flat Panel Televisions
I have a lcd samsung tv lns5296 that is 18 months old the TV will work for a few weeks then when you turn on the next day nothing just the center blue light at base of TV. I have tried all the usuall things plug this in and that, uplugg, turn on. I am at my witts end. I like the TV and do not want to replaece it just fix it.
We have a 3 year old 52 inch LCD Samsung LSN5296DX/XAA and it stopped working. The blue light in the front is on but it won't turn on using the front panel ON/OFF switch or the remote.
Thanks for couple of responses on this website; I was able to fix the problem in a day and spending only $3 on parts.
- Remove the back panel cover by taking out all the screws (about 20) and 4 large screws in the middle for wall mounting.
- Remove the protective metal cover of the left side (6 small screws) and expose the main power supply board (PN: BNN-00150A).
- You can order this board for $165 from Samsung and replace the entire board and your problem will be solved (by removing about 6 small screws and disconnecting a few cables)
- Or you can look at the upper right corner of the board to see if there are bad capacitors (they are blue cylindrical ¼ inch diameter and about ½ inch tall with two wires soldered to the board. The capacitors have an X on top and if they are bad you can see the bulging top as compared to smooth surface and black resin stuff coming out). They are labeled as 10 V, 1000 uf, 105 C (M). If you cannot find the exact one, then purchase capacitors with exactly 1000 uf and higher voltage, 16V, or 25V. Make sure they say Axial (cylindrical).
- For my board, only 3 of them were bad. Order these capacitors from RadioShack (1000 uf, 35V Axial Capacitor, PN: 272-1032, about $1.60 a piece plus shipping) or go to your local electronic store. I bought several 1000 uf, 16V at about $1 a piece from “You Do it Electronics” in Needham, MA.
- Simply remove the bad capacitors using a hot soldering device with fine tip, and place the new capacitors.
- Put the board back, put the protective cover on the board, and then large plastic cover back.
I assure you, the TV will starts by just replacing $3 in bad parts and less than an hour work. If I can do it, then anyone else can do it.
Posted on Aug 18, 2009
LN-S5296D - Cheap Fix, replace the blown capacitors on the power supply, 1000 uF - 10V (anothe forum member reported that they used 35V capacitors to replace), less than $10 in parts and takes a little basic knowledge of electronics and soldering skills. I had 3 bad capacitors, some report more or less.
Expensive Fix, replace the entire power supply board, BN44-00150A, $140. If you can replace a computer motherboard, you can do this.
I ended up ordering and replacing the power supply board but after looking at it, I could've just replaced the capacitors. They will show a buldged top or there will be some black goo oozing out of the X's area at the top of the capacitor. Oh well, I now have a spare board for the future.
Symptoms: Blue light on, would not turn on. Unplugged waited and plugged back in the Blue light did not come back on but after a few minutes it did. Unplugged for about a week then the TV came back on but after shutting off it came back on and the picture was a garbbled and pixelated, no sound. After shutting off the blue light was flashing and would not turn back on.
Posted on May 18, 2009
Samsung LNS5296DX - Thank you to Syber7 and some people on the CNet forums. My friend had the same thing happen to him, and he was ready to pay Best Buy $150 for the servce call, and then $$$$ for the repair. (some people say as high as $450.)
We took the back panel off, and then the metal protector panel covering the left circuit board. There are quite a few capacitors in there, but we found the five 10v 1000uf in the upper right-hand corner of the circuit board (looks like a motherboard.)
The only capacitors we found were at Radio Shack (35V 1000uf for $1.59 each), but they only had 3, not 5.
NOTE: You cannot use lower "uf" number; it has to be 1000. You can use higher voltage, though. The factory uses 10v, but you want to put in 16v or higher, Radio Shack only sells the 35v.
www.IntertexElectronics.com sells the 16v 1000uf for 30 cents each. Search for "16v 1000".
We replaced 3 of the 10v capacitors and it worked (the 3 capacitors that were bunched together). Total cost of repair: $5
It was difficult to remove the old capacitors until we heard that if we melted new solder on the old, it would help remove it. That worked for us. When we inserted the new capacitors, the old solder solidified and it was fine.
One other note: When removing the 6 screws from the middle, bottom area, keep in mind that 4 of the screws are attached to the stand, so make sure you put them back in so the TV doesn't fall over. We only discovered this when we went to move the TV and it came right out of the stand.
For two guys that had never soldered before, we were giddy as school girls to see that TV power up. Thank you to everyone that contributed here.
Posted on Jul 28, 2009
Had same problem with my Samsung LN46A650. Wouldn't turn on 18 months
after I gave them $1900. That's about $105/month for a television.
Samsung didn't care, despite the fact that it's happening to a lot of people, so I joined this class-action lawsuit.
If you're fed up, you should too.
Posted on Mar 03, 2010
Tips for a great answer:
Dec 21, 2015 | Samsung Flat Panel Televisions
Aug 28, 2013 | Samsung Flat Panel Televisions
Dec 23, 2010 | Samsung LN32B530 32 in. LCD HDTV
Sep 02, 2010 | Samsung LN-T4671F 46 in. LCD Television
Nov 28, 2009 | Samsung LA46A550 46 in. HD-Ready LCD TV
Nov 01, 2009 | Samsung LE26R73BDX 26 in. HD-Ready LCD...
Dec 23, 2008 | Flat Panel Televisions
Sep 09, 2007 | Samsung LN-S4692D 46 in. LCD HDTV
Dec 07, 2016 | Flat Panel Televisions
1,572 people viewed this question
Usually answered in minutes!