TV wont turn on, sandby light flashes 7 times.

These blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices. http://electronicshelponline.blogspot.com/

My TV continues to blink on Standby with Red light ...

https://community.sony.com/t5/...blink...Red-light-flashing.../59141

Jan 12, 2013 - I need help with my Sony TV. The red flashing light keeps going on and off. ITs on standby. can someone guide me as to how to fix the problem. ... I have a Bravia KDL52W3000 with a 7" wide dead pix... Television - Picture & Sound ... What is the exact model number of the Sony TV? Check if the same issue ...

I have no clue who makes your TV or the model so I can't really help you. Count how many times it flashes and start googling for the answer. Include all the info you can next time.

A brand and model number might be helpful for a educated answer or possible things to look at.

If the red light is blinking in front that sasy lamp. Your lamp needs to be replaced. They cost about $100.00 at your TV Fix It shop. Very easy to replace yourself

Depending on the age of your tv, if you hear a rapid clicking, it seems like your ballast is starting to turn on your tv but it's not able to. (1) Check your lamp, (2) reset the lamp timer, (3) make sure the cover panel is all the way. the positioning sensor might not be detecting the cover all the way in.
Personally I think you're experiencing a ballast problem.

Ur power board have dead capacitors.U Know how to solders?Take the tv aparts,check these capacitors in the power board for dead capcitors like puff up or burst open.Replaced these capacitors to get power back.Or buy and replaced the whole reburbish power board at Shopjimmy.com,Ebay.com.

Those blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices.
http://electro-medical.blogspot.com/
http://homenol.blogspot.com/
http://electronicshelponline.blogspot.com/
If blinks continue without any pause, the main board is faulty.
Search the site by type in the "brand name" to your device, in the "Search box at the top right of the display window of the Homepage" to get gathered related posts.

I had a similar problem a few years back . I purchased a new on/off switch from Sony and that seemed to fix things.

Alleluia