TV won't turn on and standby light blinks 5 times

In standby mode (red led on/after the led stops from blinking), press "Display", "5", Volume (-)", "Power on" on the remote control in sequence, self diagnostic screen will be display, let me know the what is on the screen to diagnose where the fault came from.

you have to check you timinig on/off setting.

TV got internal problem and goes to standby due to protection circuit activation. In protection status, standby light would start blinking in sequence with 3 seconds pause. Let me know how many times standby light blinks to find out possible problem section in your Sony KV-32FS420 TV to suggest any solution.
Thanks.

can you recheck the model please

I had the same problem with Sony KV-32fs120 with 9 blinks. Replaced D645 and D647 on main board with 1.5A1KV diodes from Radio Shack which did the trick.

The blinking light indicates power supply failure. There are two integrated circuits on the power supply board that have to be replaced. I estimate repair costs in the range of $375.00

it is an error code of the sony maybe there is a problem in it.

Seven Blinks: High voltage shutdown. The high voltage has exceeded 33k and the unit goes immediately into shutdown. Check power supply and horizontal circuits.

Culbert Communications
New Brunswick, Canada

sticks on standby

If the standby light is blinking 5 times then repeating, it is likely a problem in your picture tube or related circuitry. Other possibilities include the "Jungle" IC which takes care of the video, chroma and deflection processes and is a bear to replace. Either way, it could be an expensive repair.