Sony kp-48s65 rear projection

Absolutely. Sony's Trinitron tubes exhibit this failure when they begin to lose gas charge. Translation: THE CRT PICTURE TUBE HAS GONE BAD. Very sorry!
It is a VERY old set, and I'm certain it has brought you hours of good service.

I encountered same trouble and ive found a leacky capacitor. and after i replace its back to nnrmal

The blinking red light should happen for 15 seconds when set is turned on--set is looking at the 3 picture tubes to see if voltages are all there--if not it does not turn the tubes ON.

Going to be a shop repair unless you get a older tech to come to home to try to fix it. Considering age of set it may be time to replace it?

I have a suggestion (this is a older set): unplug set, remove back cover.

There is a metal channel V shaped that runs left to right above the boards and just below the 3 large lens---look to see if any white residue trailing down from the lens/tubes into the channel-------GLYCOL.

If see any signs of liquid (even a little) do not touch it--toxic stuff and if it got onto the boards below the set is finished.

Missing green convergent

You probably need to replace the projector lamp. Go here to get steps on how to replace it.

The Blue CRT is bad.

check the solder on the vertical output ic. it may need to be resoldered

does the from led blink if so how mant times pause then blink again?

you will have to go in the service mode. be careful as you could damage the tv if wrong settings are changed. with the tv off push on the remote display 5 vol+ power. now hit the 1 button until you see pje fdis on the upper left. now push the 9 button to enter convergence. you should now have a cursor on the screen. usr the 3 button to switch colors. use the directional pad on remote to move the cursor and the enter button in the center of dir pad to select or deselct a point in the screen. push muting and then enter to save convergence. now restart the tv and all done