60" rca hdtv power button blinks on and off 3 times then shuts off.

Do the self check this set has when it shuts off Menu and input (input is source) buttons on the set both held for five seconds or longer, then release both and look for the power light to blink a two digit error code like one blink, two blinks and pause then repeat it several times, let me know what error code you find.

There are three capacitors that fail and cause that symptom they are CP150, CP120 and CP114 all located on the deflection power board. The tops will be slightly puffed up on one or more of those three caps.

Ok i have consulted the shops service manual on that sony model.A blinking led of 7 times is and indication that your audio cuircitry has blown. or shorted. most likely the audio amplifer ic. ic number 3005 on the K cuircit board. Specifically the audio power supply line has become shorted. most likely it would need replaced along with its assocated fuse ps3001

Hi,
If tv shuts off and turns back On itself than lamp is weak and need to be replaced.
If tv shuts off but does not turns On itself than you will see red light blinking on tv front, let me know how many times it blinks, there would be pause of 3 seconds in blinks so count pause to pause and post here to provide you helpful info about problem.
Thanks.

Push and hold power button. If it cycles and blinks on/off in 3s or 9 times, it is a power problem. Replace the deflection board. Cost about 250.00

my rca tv will not power on power button blinks four times

check your sleep mode...

you need to replace the flyback 259296 and CP150 you van get both parts with free instalation instructions at the following link.
http://servicemanuals.vstore.ca/

Blinking power light is usually due to bad capacitors on the power supply. See the tip for RCA atc336 under my profile that can apply to your set as well.