Mallory HyFire 685 DOA?
Hey Guys,. A little background, I have a Mallory HyFire 685 that I just installed in a drag car project. I've had the box for about 2 years after buying it used here on FABO. I just finished the car today and installed the ignition. With only the GND and 12VDC hooked up, the display is not lighting up. I did all the typical checks of the ground wire, 12vdc, connector cleaning etc... I hooked up the remaining wires incase they triggered a circuit and turned ON. I opened it up to see if anything looked obviously fried in the power section but it appears clean. Of course there are a hundred discrete components and IC's that could have a hidden issue. Anyway.... I'm turning to you guys for any ideas or past experience with these before I spring for a new ignition box.
Hey Guys,. A little background, I have a Mallory HyFire 685 that I just installed in a drag car project. I've had the box for about 2 years after buying it used here on FABO. I just finished the car today and installed the ignition. With only the GND and 12VDC hooked up, the display is not lighting up. I did all the typical checks of the ground wire, 12vdc, connector cleaning etc... I hooked up the remaining wires incase they triggered a circuit and turned ON. I opened it up to see if anything looked obviously fried in the power section but it appears clean. Of course there are a hundred discrete components and IC's that could have a hidden issue. Anyway.... I'm turning to you guys for any ideas or past experience with these before I spring for a new ignition box.
