Hi. I am looking to repair a 42" Samsung plasma tv that has had intermittant problems up until now, which is now a permanent problem.

Model: SP-R4212, Type: SR42S5
Possible defects: Ysus (LJ41-03424) Ybuffer(LJ41-02249, LJ41-02248)

Symptoms: No video, good audio. With bevel removed (exposed PDP) you can see white snow (very dim) occasionally while the set warms up. Completely dark after 60 seconds or so. The no video issue started intermittently: the set would go dark, then come back online, and off again. Sometimes it would stay dark for a few minutes,...