Tv turns on for 10 seconds and then turns off. Then a red flashing blinks 6 times and repeats

You need a service engineer

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

www.ifixit.com > Answers > View > blinks+the+red+lig...

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
red led blink 6 times when I turn on the tv - Sony ...
8 answers
Sep. 7, 2015
SOLVED: Blinking red light 5 times Sony Bravia 55" tv ...
5 answers
Apr. 8, 2017
SOLVED: red led blink 7 times - Sony KDF-E60A20 ...
1 answer
Apr. 21, 2020
bravia has no picture or sound and flashing 5 times ...
2 answers
May 10, 2018
More results from www.ifixit.com

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.

https://community.sony.com/t5/Television-General/Red-light-blinks-6-times-tv-won-t-come-on/td-p/47107

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/
Blinking codes details to many popular brand TVs are given. Surf the site with patience.

turn tv on picture comes up 2to3 seconds later tv blacks out then stand by red light flashes 4 times in a row repeatedly..can not turn on or off when stand by light starts flashing but before tv blacks out you can turn tv on and off repeatedly and picture and sound work.You have to unplug power cord for 30 seconds after stand by light comes on to get tv to turn on.

TO PROGRAM THE remote USING THE 3 DIGIT CODE:
1. Turn on the TV receiver
2. Press TV on the Sky Remote Control
3. Hold down SELECT and the RED buttons together for approximately two seconds, until the RED LED on the Sky remote blinks twice.
4. Enter three digit code from list for the receiver (early versions now flash twice).
5. Press select to enter code structure (the LED will flash twice if a valid code has been entered).
6. Now press the STDBY button and test other functions.
Repeat if necessary until a code is found that works most common functions.
TO PROGRAM THE remote USING THE 4 DIGIT CODE:
1. Turn your TV on.
2. Press tv on your Sky remote control.
3. Hold down select and the red button together for about two seconds, until the red light on the Sky remote control blinks twice.
4. Press tv on your Sky remote control again.
5. Key in the four digit code for your brand of TV. The light on the Sky remote control blinks twice. If the light blinks once only, recheck the code for your brand of TV and start again at Step 1.
6. Press the standby button on your Sky remote control. If your TV switches off, press select. The light on the Sky remote control blinks twice (code stored). If your TV does not switch off, press tv, then press the standby button. Repeat this (press tv, then standby) until your TV turns off, then press select (stores code).
If at this point the LED on the Sky remote control blinks three times then all possible codes for that make of receiver have been checked. Repeat from step one, ensuring that you enter the correct manufacturer code.
At the end of the sequence, if you see the TV Guide screen, the remote control setup process is complete. If you did not see the TV Guide screen, you must now complete the following steps.
8. Press tv on your Sky remote control.
9. Hold down select and the green button together for about two seconds, until the red light on the Sky remote control blinks twice.
10. Key in the number of the channel on your TV that you use for watching satellite TV.
11. Press select on your Sky remote control. The red light blinks twice. The remote control setup process is complete.
If after trying this, you still have problems, call your broadcaster's help desk. For your broadcaster's help desk number, select the Telephone Numbers option from the Services screen.

Sony FD Trinition Wega KV-32HS510 Try to turn tv on -it starts then shuts off -stand by lights keeps flashing. Memory stick light flashes then goes off.

When the set ends up flashing the LED, it should be a repeatable count. Can you please report that count here? Also, since the set eventually works, I'd suspect a bad connection or a part that has changed value over time. The blink code will help to narrow down the offending circuit.
Dan

how many times does it blink pause then blink again?