[Cohibaman]

Originally Posted by c_dk

The most important thing you can do for your MR78, other than having it professionally aligned, is to make sure the Tantalum cap for the power supply filtering on the multiplex board has been replaced with a new electrolytic.

Tantalum caps have been showing up failing as a short circuit over the last 10 years or so which causes the power supply to short out and fail. You end up with lights but no tuning or sound.

+1

These caps will fail.