Question about Televison & Video
Hello. I have recently been having picture issues with my 6 year old Samsung LN46A630M1FXZA LCD TV. Anyway, what happens is when I first turn the TV on, there is no picture but the TV clicks on. After a few seconds it clicks off and clicks back on again. After several cycles of powering on and off like this sometimes a picture shows up but it is frozen and the color is usually all green or purple with vertical lines. Once again the TV will turn off and back on again several times like this. Sometimes there is a loud static sound that is very annoying. Eventually the picture appears and the TV works as it should but it has been taking it longer and longer to do this. Keep in mind at no point of the TV trying to turn on can I use the remote to turn the volume down or change inputs. I have already changed the capacitors with no luck. My next thought is the t-con board but I want to make sure before I spend the money on it.
Sounds like main power regulator board fault. Contact the authorized service centre to buy a genuine board; or check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size.
Posted on Nov 17, 2014
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Posted on Jan 02, 2017
Hi to all, My 42" Panasonic plasma have the same problem. It turned itself off and now red light flashes 7 times, than after short pause 7 times again. And so on. Any ideas what is wrong??
Posted on Oct 23, 2008
SOURCE: Vertical lines in LCD tv screen
Need to check the two things.
1st -- need to exchange T-con Board.
2nd -- need to exchange the cables between T-con & LCD panel or
between T-con & Main(LVDS cable)
Posted on Feb 06, 2009
The tv Tuner board is dead,that the board,where the brocasting incomming signal cable connected into it.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish Tuner board for the replacement.
Posted on Jul 22, 2010
Testimonial: "Thanks for quick response! I will try. "
SOURCE: Three-year old 47" Samsung LCD.
1. the motherboard might be bad and you will need to replace it.
2. or The power supply is bad
Chances are if its making clicks the power supply is bad and you will need to replace it. Which makes sense because constantly powering the tv on and off will damage the power supply or possibly short out your motherboard. These things usually cost about 200 bucks to fix at a local tv repair store.
Posted on Sep 02, 2010
had a very similar situation with my Phillips 42 in. LCD TV.
Here was my Problem. The Power Supply Board. I opened it up( Warranty was Expired) and found several faulty capacitors on the PSB. Its pretty common. Major Electronic companies were sold faulty capacitors that fail in 2-5 years instead of 10-20 due to a lack of preservatives. It wouldn't surprise me if you have the same problem. TV will work fine for a few years and then just fail completely or slowly deteriorate.
Here are the solutions
1. Have it Repaired
2. Check for faulty caps and if you find some(budged or leaking) you know you have located a problem
Remove the board and replace the whole thing.
3. If you have some soldering skills you can replace the faulty caps.
Caps are very inexpensive, under a dollar in most cases. I replaced 4 for about $5.00
Hope this Helps.
Posted on Dec 10, 2010
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