Just some tips - my last restore (https://www.gamoover.net/Forums/index.php?topic=40992.0)
I have put some (TO-220 Heat Sink) on the Q20 and Q22 (K1250)
I think the missing cooling causes them to blow up.
So get some heat sinks and termal grease and mount them
Also if you change the PC910 - then get some DIP8 sockets, and put the new PC910 chips in sockets, then they are easier to change next time.
(hopefully there will be no next time)
And my G-loc still runs
A 2019 video of my gameroom -> https://www.youtube.com/watch?v=RBDr0JaW7uw&t=4s
I have put some (TO-220 Heat Sink) on the Q20 and Q22 (K1250)
I think the missing cooling causes them to blow up.
So get some heat sinks and termal grease and mount them
Also if you change the PC910 - then get some DIP8 sockets, and put the new PC910 chips in sockets, then they are easier to change next time.
(hopefully there will be no next time)
And my G-loc still runs
A 2019 video of my gameroom -> https://www.youtube.com/watch?v=RBDr0JaW7uw&t=4s