Hi @nanayawtoftof
Count the number of times it is blinking, before it repeats the same number of blinks.
The number of blinks is an error code, that will tell you what the problem is.
Here's a image from the [https://elektrotanya.com/sony_kdl-32ex710_40ex710_46ex710_55ex710_55ex711_55ex713_chassis_az1-l.pdf/download.html|service manual] that shows what each number of blinks means.
[image|3356041]
(click on image)
The service manual details how to disassemble your model and also the part numbers for the components etc.