Re: rca m50wh92syx1 cap on ballast board?

I have a similar problem with my RCA DLP TV and was wondering about replacing/repairing the ballast assembly. I had already tried replacing the capacitors on the power supply board with no luck, so I then took it down to the local reair shop where they did basically the same thing again. It worked for about a month but then the problem came back. Now he says it may be the bulb. Unfortunately, the technician is out indefinately due to a car accident, and I'm anxious to get the thing fixed. Replacing the bulb seems easy enough, but not sure...