I must turn on and off multiple times for picture

Main System Board is faulty.

Check what input you're on. All the TV's from the last decade have multiple input choices. (i.e. HDMI 1, 2, or 3. Video 1 or 2, Screen Mirroring.)

Here's a link to the Sony info...

https://www.sony.com/electronics/support/articles/00166735

It could be your power supply board.

Ur tv DM power supply board have dead leakages capacitors.U have tools,solders and soldering iron?U know how to do soldering.Tries websites like Tvrepairworld.com,Tvrepairkits.com buy a capacitors kit to replaced dead leakage capacitors to the DM power supply board.

Hi,
Question shows tv is Sony KDF-60WF655.
Green light blinks when tv gets prepare to fire up lamp, check internal circuits then show picture on front screen.
Red light blinking shows some kind of internal problem during circuit check and protection got activated upon some failure.
Count the red light blink as you will see 3 second long pause and post it here to diagnose what section of tv got problem.
Did you replaced its lamp in last 2-3 years?
Thanks.

Normal 0 MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman";} The best advice I can tell you at this point, is to go to tvrepairkits.com and order the complete convergence kit for your model of TV set, no need to search and order multiple parts from different sources and pay multiple shipping fees! The kit comes with original Sanyo STK IC’S , not those cheap aftermarket or china made IC’S full pictorial directions, the thermal paste, resistors, the correct Pico fuses, AND free live on-Line tech assistance in case you run into a problem with the repair. They ship out 2 to 3 day Priority mail, the next day in most cases GOOD LUCK!!!
Larry Dillon, senior tech/tvrepairkits.com

CP150 is a capacitor in the power supply circuit....feel top to
see if flat....change if "pooched" or swollen..................T.

Had same problem after only 3 months, tech looked at it said had a power circuit problem causing it to keep cycling, they exchanged my TV. No problem since.

If you would like us to help you, you must tell us what brand and model TV you have.