Ghostnuke
Well-known member
I just picked up a project Galaga with a broken fire button. I've been checking the usual suspects and I'm a bit confused.
I checked the connections on the rapid fire board. It doesn't fire on either header.
I've metered the button with power on, it is getting +5V.
Here's the confusing part. If I take the control panel off entirely and check for continuity at the break plug, every single component comes up as shorted. The joystick, start buttons, fire button. But everything works except the fire button. How is this possible? I even did the same thing on my Gaplus control panel to make sure I was doing it right. Everything on Gaplus tested normal.
Help!
I checked the connections on the rapid fire board. It doesn't fire on either header.
I've metered the button with power on, it is getting +5V.
Here's the confusing part. If I take the control panel off entirely and check for continuity at the break plug, every single component comes up as shorted. The joystick, start buttons, fire button. But everything works except the fire button. How is this possible? I even did the same thing on my Gaplus control panel to make sure I was doing it right. Everything on Gaplus tested normal.
Help!
