Need kit to repair panasonic PT-50LC13 ballast

Check partstore.com to find the kit. The kit part number is LSUC0022.

It seems a majority of the time the problem is D315. This comes in the kit or seperately for about $5 (that is about $13 with shipping). If you are cheap try this. D315 is a SIDAC made by SHINDEGEN My part number was K1V23N. Others have reported it labeled as K1V237, K1V269, and K1V66. Suspect the last one is a typing error. Found it by google K1V2 and K1V24 pooped up.

This will not test as a regular diode, polarity does not matter at all. It starts conducting in either direction when voltage is over 180V. A post on another forum said it started conducting when it reached 185V, but he still didn't know what it was. An ohm meter will never detect anything.

A SIDAC (not a SIDACtor) is a thyristor that at a certain voltage turns into a short till current stops or reverses direction. Since this is in series withC1330, they should both be replaced. Mine is a .22 instead of a .1 so there is variance in these sets. ESR was a little over 2 ohms which sems on the ify side for something that carries current.

ONSEMI has a MKP33V240 that sells for about 50 cents at digikey and a K1V24 at Mouser is about a buck. Decide for yourself if this is a suitable item.