Will +5/Ground to 2 pins instead of 4 cause a PCB reset?

streetfighterken

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Will +5/Ground to 2 pins instead of 4 cause a PCB reset?

I have a Nintendo Red Tent that is driving me insane. I've changed every component. I've capped monitors, changed PCBs, switching power supply, ISO Transformer, metered +5 (5.08). But I'm still getting intermittent resets. I noticed that the harness was hacked at some point in its life. At the power supply end, only 2 wires are getting +5 and only 2 wires are ground. At the PCB end, the harness is intact. No idea where those extra +5 and Ground are ending up.

So I wanted to ask if it's plausible that the board isn't getting enough power before I start dismantling the thing and ripping into the harness which will be a JOB.
 
measure the +5 volt line on your logic chips on the board
and see if you are getting a loss :ie: 5.08 becomes 4.8 or such

ed
 
I measure 5.08 on the cpu. Same as edge connector.

If you're getting a constant +5V then it's unlikely a power issue. There are a lot of different things that can cause a reset.

1) Flaky Connections (Maybe the pins in the harness are weak, or dirty)

2) Crappy Sockets for ROM's, etc...

3) Corrupt ROMS.

4) Faulty component on the board itself.

5) Other....

I would start in that order. Clean the edge connectors and check to see if any of the pins looks more compressed than the others. Then move on to the sockets. Make sure they are clean and re-seat the chips.

If you have a different VS game you can try in the board, that might also narrow down if it's a ROM issue or not.
 
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