Check and replace damaged component/s at it main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" or "Magazine" will make surf easy. Surf the site with patience. Pull up older posts.
http://electronicshelponline.blogspot.com/
It will be best to replace the power supply regulator board as card basis.
SOURCE: Sony KDF-E55A20 55 in. LCD... Problem red light flashes 5 times
A 5 blink error indicates a bad lamp driver. However a lamp may possibly cause this too. I suggest putting a new lamp in if you have one just to verify the lamp is not the problem. If it still fails with a new lamp then the lamp driver is the problem. This part should be replaced by a Sony authorized servicer. The lamp can be replaced easily by you. The lamp replacement instructions are in the TV's owners manual. Good Luck
SOURCE: Sharp LC-26D43U Power light flashes and unit won't turn on?
It's a power supply related problem. When it turns itself off, this it called protection mode. The TV automatically turns off to protect other parts form being damaged.
The most common problem is the Power Supply Unit or the Backlight Inverter Board.
You may have to take the TV to a repair shop to find out which one is bad. Paying a repair shop to replace the board for you maybe more than the TV is worth. If you let them diagnose it and you replace the bad circuit board yourself, it would be cheaper.
Here's a place I use to get parts for TVs:
http://www.shopjimmy.com/catalogsearch/result/index/?q=LC-26D43U&p=1
The problem is the repair shop may charge you double or three times of what the part costs at the web site link above. Then, plus labor. I just want to save you money. :)
SOURCE: My Samsung LCD tv clicks over and over again but won't power on
this is common fault the capacitors have blown on main power board you can replace your self if got soldering iron
take back off tv and look for capacitors that have RAISED TOPS they look like little batteries with white line on one side and numbers (e.g 2000mf 25v ) the best way to remember which way they go back is take picture
you can get parts from charles hyde and sons web site (CHS) under general components or at a electronic shop
SOURCE: I HAVE A SAMSUNG LN46A550P3FXZA
There are many tips already on how to replace the capacitors in these units. In your case it will probably be CM852 and CM853 on the Power supply board. They should say 1000uF at 10Volts on both.
SOURCE: Toshiba Regza 42RV535U 42 in.
Hi,
TV needs back light inverter board replacement as discussed in chat session, required board is available with shopjimmy.com
Thanks.
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