Space Invaders L Shape x 2

[RGP]

Recently done a couple more Space Invaders PCB repairs for people - both are Midway L Shape boards.

First:

[tube]0aX6Wo1y7nw[/tube]

Essentially a dead 8080 CPU

Second:

[tube]9Vt132j_I5g[/tube]

CPU's INTE line can't be driven which would cause the INT line to toggle - cause: bad 7474 @ 3E

Also explains Fluke 9010 "CTL ERR" message i'd never come across before.

Enjoy and any questions, happy to help.

RGP2017-04-18 15:59:27

 

[Judder]

 

[Nes4life]

Enjoyed the videos! Keep 'em coming James