Question about Samsung LN26A450C LCD TV

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Samsung LN26A450 LN26A450C1DXZA won't turn on

Red stand by led is on but TV won't turn on. My warranty expired on 09/11/2009 and the TV broke on 09/20/2009! I purchased it on 09/11/2008 at Best Buy with no extra protection plan. My main TV is also samsung (42" DLP) and it died about 20 months after purchase. However, Best Buy fixed that one since I had $400 4-year protection plan. I will never buy Samsung products again. I just created Samsung repair ticket. 1 way shipping costs $81 from FL to NJ (repair center). I have to pay $162 just for shipping PLUS repair cost. I don't recommend Samsung products to anybody.

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I had the same problem with my Samsung LN26A450 LCD TV. I found the following YouTube video http://www.youtube.com/watch?v=Mm51C_RDIZE titled "Samsung TV Repair - Part 1 of 2) (also watch Part 2 of 2) which shows how to easily fix the problem. The problem is bad capacitors on the power supply board. My TV had seven (7) bad capacitors - all 7 had dark stains on the ends from leaking electrolytic fluid and one (10V 2200MFD) was blown with bulging ends. I ordered 7 new high-temp (105 degrees C) aluminum radial capacitors from DigiKey.com matching the Temperature, Capacitances and Voltage Ratings for each damaged capacitor that I removed. I followed the instructions in the video except I used desoldering braid ($3.99 at RadioShack) to remove the solder attaching the bad capacitor leads to the power supply board. Once you wick up the old solder from all sides of each lead wire using the desoldering braid, the bad capacitors are easily removed. Total cost of repair including soldering equipment was less than $50. Thanks to “The Professor” for posting the video and saving me $400.

Posted on Oct 30, 2009

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My Samsung TV, model LN26A450, would not turn on. The red light would flicker a little when I pressed the power button, but that is all. It was obviously a border line problem, because when the room warmed up, the TV would work, but when the room was cold, the TV was dead.


As a lot of people have pointed out, the problem was a capacitor in the power supply. There was a 2200uf, 10v, 105c capacitor that had a slight bulge on the top. Interestingly, this one capacitor was a lighter shade of blue than the rest.


The TV was easy to take apart, and it was easy to remove the power supply. It took some close examination to find the capacitor with the bulge. The next step was replacing that capacitor.


Luckily, replacement capacitors are available on Amazon. I found mine here.

http://www.amazon.com/gp/product/B0044JL9T4

There are also kits available that include all the capacitors on the power supply.


To replace the capacitor, you will need a soldering iron and some thin solder.


Remove the bad capacitor(s) using the soldering iron. Be sure to note the polarity before you pull it out. Cut the leads on the new capacitor so that they are the same length as the old one. Then insert the new capacitor using the right polarity. It might be necessary to melt the existing solder to insert the leads. Once the leads are inserted, melt a little bit of new solder into the holes to ensure good contact.


Hope this helps.

Posted on Nov 14, 2011

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