84' Mitsubishi CS1984R - Startup Issue?

[zeno]

You have one of the old MGA's thats good. They were much better
than the newer ones, MGA actually stooped to rebadging some
Sharps on some models. That really pissed off a few customers
when they found out !! ( he he he I told them)

Anyhows the flyback pix is a bit out of focus but looks normal.
The CRT filaments WONT light without HV.
IIRC there is no "start up" circuit in this set, thats good.
I dont think it has anything to do with the buttons, its just the
long arm of coinsidence at work !
I assume you have a meter. Double check the fuses with it.
A common fault is cold solder on the hoz drive transformer & in the area
of the hoz out transistor & flyback. Also at the on/off relay.
The small black xformer behind the flyback in pix is the hoz drive xfrmr.
IIRC these sets also got cracked PCB's along the back edge............

Dont know your abilities or equipment but this is an easy set to deal with
so if you have the basics we can walk you through......
Let us know.

73 Zeno