Amplifier maintenance for beginners


What kind of maintenance is recommended for beginners? Can I clean the circuit boards, or output connections? Is there something called contact cleaner?
samuellaudio
I just realized I forgot some additional details. The situation I mention above is for a solid state amp. Also I wiped down the heatsinks. Thanks again
Bring the thing up on a variac. Start at about 75% line voltage and gradually build. Make sure it does its math home work and practices pronunciation of its consonants. If it gives you any feedback PUNISHMENT IS IN ORDER.
Turn it on turn it off clean rcas and speaker terminal with Kontack thats it.