Mitsubishi DLP stuck on Welcome Screen Repair Advice

My WD-82737 is hanging on the blue welcome screen. I did the firmware update and it worked for 2 weeks. I did firmware update a couple more times and got it to boot but the color was blotchy then it went back to hanging on startup screen. I have heard this indicates a bad power board and or main board. I found this chassis kit on shop jimmy (Out of Stock)https://www.shopjimmy.com/mitsubishi...i...

I could probably install it myself. If I can get the part. 

Is there a way to diagnose this better? What would a tech charge for that repair approximately?

Any advice is greatly appreciated.