hatmoose

Thanks for the words of support! I was feeling a bit down, so much work, and so close but so far away. You're right of course, will...

Back into messing with old gear after a brief Christmas break - to my complete lack of surprise the barely functional board is now...

Hello, I have a problem with an mvf1 motherboard that does not start and has power. The red led is on. Could it be the power supply...

Make sure dip switch 8 is off BB

It starts sometimes fine.

It could be a loose 5v Jamma connection to the Jamma edge or your Jamma edge could be dirty and you may have to clean it using an eraser...

Clean the contacts and still the same.

What are you getting on the screen? Do you hear any clicking sound? BB

Nothing on the screen, only the power led is illuminated before, yes, I heard clicks. I have also tried to remove a cartridge and the...

Try making sure you bios chip is firmly in or swap it out for another one. BB

This is what happens on the original bios screen.

I have put the other larger motherboard and the same thing happens to me.

The problem must be with that mini super gun you're using then. Purchase a different device to plug your boards into. BB

forgot to say that a weak PSU can cause that as well IME, so yeah the supergun voltages should be checked

thats how it looks when it can't boot, often caused by severed traces to the BIOS that aren't conducting when they should best is to...