8080 Board Set

[Retromanic2]

Hi Everyone,
One of 4 Projects Taito Space Invaders...
Depending on which way the wind blows now and again I always come back to this one,hoping that one day it will be working..
Ok!
L Shaped Board Set
Armed with only my multimeter set on frequency I have followed the Midway 8080 test Manual every thing seems to check out ok.But still no picture?
Is there any test Docs on the Daughter Board as I am thinking this is where the problem lies..
Hopefully....

 

[P-Man]

do you have a known good monitor? are al your voltages correct? is this a full machine?

does the game coin and play blind and you get no picture? is that your problem?

without knowing these things i can't send you off down any troubleshooting path on the board.

 

[Retromanic2]

Hi, Andrew
Board is on a Test bench,Voltages all Ok
Connected to a working 1084s monitor.

 

[P-Man]

"does the game coin and play blind and you get no picture? is that your problem? "