So what did I hose up on the Galaga switching power supply conversion?
So the game was playing off the original power supply but I got no sound. I bought an ATX power supply and plugged in the +12 and got sound so all was good with the world.
Then tonight I decided I should go ahead and do it right and install the rest of the switcher lines to the +5 and ground leads. Well, now when I turn it on I can hear the game playing but I'm not getting video.
Also, when I measure the +5 at the board I'm only getting +4.5 or so. Could this account for it not being able to drive the video? If I read the voltage at one of the other connectors I get +5.1 or so.
One thing I did....I'm not sure if this makes a difference but you know how there's a BUNCH of yellow leads that need to be connected to ground? Well, I hooked two yellows to one black wire on the switcher, another two yellows to another black, etc. And I split up the reds to multiple +5 leads on the switcher also. Does that matter?
So the game was playing off the original power supply but I got no sound. I bought an ATX power supply and plugged in the +12 and got sound so all was good with the world.
Then tonight I decided I should go ahead and do it right and install the rest of the switcher lines to the +5 and ground leads. Well, now when I turn it on I can hear the game playing but I'm not getting video.
Also, when I measure the +5 at the board I'm only getting +4.5 or so. Could this account for it not being able to drive the video? If I read the voltage at one of the other connectors I get +5.1 or so.
One thing I did....I'm not sure if this makes a difference but you know how there's a BUNCH of yellow leads that need to be connected to ground? Well, I hooked two yellows to one black wire on the switcher, another two yellows to another black, etc. And I split up the reds to multiple +5 leads on the switcher also. Does that matter?

