Tv will not come on. Red light blinking on bottom left front. Red light blinks 7 times

You need a service engineer

SOLVED: blinks the red light 10 times frequently - Sony Bravia ...

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Apr 24, 2018 - @hdcifix215 10 blinks apparently is not a real error code from Sony. The descriptor for that is "Watch Dog Timer used to track micro processors, ... 2 answers
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SOLVED: red led blink 7 times - Sony KDF-E60A20 ...
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bravia has no picture or sound and flashing 5 times ...
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The red light flashing is indicating the error.
depending on the make and model of the TV, the duration of the flash and number of flashes determines the error code.

I have come across 6 blinks; 7 blink and even 10 blinks.
the video below may throw some light. Not sure if the blink codes are universal across models. Panasonic plasma tv 7 red blinks of *****

replace C8023 tab power

These blinks are fault indication, and known as blinking codes. From the number of blinks occur at one time switch ON; you can get an idea about the faulty circuit stage inside the TV. This will make repair easy. For more information, check the link http://electronicshelponline.blogspot.com/

Sony Bravia 7 blinks disclosure
https://www.facebook.com/photo.php?fbid=711021065598851&set=a.103481003019530.7279.100000728915080&type=1&stream_ref=10

How many times is that light blinking? For example a 7 blink error code would blink 7 times pause 7 times etc. What is your's blinking?

Ok 7 red blinking led, remove the back cover of the TV. Looking at the power supply in the upper left of power supply. If everything is working fine you will see a solid green led if there is an error, you will see this light blinking also. Right below this led on the power board you will see a list of numbers 1-13 this will give u the problems that this led flashing problems are. More and likely u will have a problem with VSET or VSCAN. Which is connected to the Y-Main and Y-buffers,( the board that is too the left of the power supply if u look on the small print on this board you will see that it reads. 42HDV4 Ymain and the 2 small boards connected to it are Y buffers. To be sure that this board is bad if the TV keeps going into error protection. unplug the power supply and wait for the led to stop flashing. Disconnect the cable that plugs into Y-Main from the Power Supply. It should stay running. If u remove this board and look underneath u should be able to see where this board is getting hot. Easiest fix is to order a replacement. Y-main assembly.

Is the light blinking 7 times on front of TV ? If u take the back cover of the TV off you should see two leds on the bottom right of power supply turn on when u push the power button. When the TV go into error protection on the upper left of power supply you should see. A blinking green light. Please inform me of the error it flashes and ill will be able to help further. ( Serveral possiblilties it could be from audio, bad power,and faulty Y-main.)

The SSB is small self contained board that u connect your Antenna, and HDMI to. An error three is a communication error between the SSB and to Logic board ( located underneath the SSB on the back fo the plasma panel that is just below the power supply. U can check parts.com and see if u want to purchase a SSB for this TV. Is the 3blinking lights coming from the front of the TV. Also check the power supply and see how many times the green led blinks on the upper left of the power supply and let me know.