Question about Samsung Televison & Video
Check and replace damaged component/s at its horizontal scan output section circuit. Check the LOT (Line Output Transformer) too for damage. Replace the horizontal scan output transistor. Check the input voltage to LOT. If the voltage is absent check the feeder resistor; if any. If you wish to get some details; check the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/ Type in this key phrase " my service table today " in the search box at the top right of the the home page, to get gathered some pages which has the details of practical experiences of the author of that site. The search result will display about 20 Nos of related posts. Press the "All posts" at the bottom of the list, then you can select them one by one.
Posted on Dec 20, 2016
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Posted on Jan 02, 2017
SOURCE: Samsung DLP TV shuts off
First thing I would suggest is to check and make sure that the cooling fan is working properly. The lamp may also have an intermittent failure as well.
Do a visual inspection of your lamp. In your case check for a fogged condition. If the failure is intermittent, the lamp will look fine to the visual check.
The newer TVs have blink codes that can be use to determine if the lamp is defective. Check for the LEDs on the front panel blinking and count how many and the time intervals they blink.
If you need any further assistance, let me know.
Posted on Feb 25, 2008
SOURCE: Samsung DLP TV shuts off
Hello All, I may have an inexpensive solution to your problem. I had the same problem with my TV as well. It would shutoff by itself about an hour after it was turned on. The when I would turn it on again it would shut off after 5 to 10 minutes. Finally I got fed up. I knew it was not my bulb because the picture still looks good. I did here a buzzing if I would turn the TV on right away after it would shut off. That was do to the bulb recharging itself. I noticed the TV was extremely hot in the back. So automatically I thought it was the cooling of the set. All post I read keep saying the TV would last about 2 years to a year after a service. Which would be right because (most) service repair clean out the units before installing new parts. What I did was I opened unplugged the TV from the wall and opened unscrewed the back panel door. I used my Air compresser and blew out all the dust inside. ( A can of compressed air should do the job if you do not have a compressor) I removed the bulb and blew out the dust on the bulb as well. I did not remove the bulb from the housing unit. After I dusted the bulb and housing unit I reinstalled it. I keep my home clean but you should have see all the dust that came out. The dust covering the components overheat the unit which causes it to shutdown. It has been about 2 weeks and have not experienced any problems since. All I can say is give this a try and maybe this will work for you. This will only cost you about 10 dollars and 30 minutes of your time. This is better that Hundreds of Dollar in repair.
Posted on May 25, 2009
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