Suitable PSU replacements for jamma machine?

[cools]

Here's how I wired mine up, if it helps.

 

[cools]

Get yourself some new connectors to crimp on?

 

[kingtreelo]

Get yourself some new connectors to crimp on?

yeah, this may be the answer to combine them all into one nice little connector, there is no chance of 3 fitting in, a few have 2, just the ground is a problem, i have a crimper somewhere

 

[kingtreelo]

managed to get the power sorted with the new PSU but alas, has not fixed my problem

 

[grobda]

I'd start from basics. meanwell psu's ive used should output voltage with no load. take the loom off and check 5v at the psu from min to max. set it to 5v reconnect the loom and test it at the socket. If its ok then check it with a pcb, raising the voltage at the psu if required back to 5v and rechecking at the pcb. if its losing excessive voltage through the loom then replace the power wiring. shit job but better than having a shit loom. I've encountered some fubar looms in my time.

dont use crap £10 ebay looms they have shitty power wiring, power wiring looks thick but its just thick plastic over inadequate wire.

Also one power/ground wire is fine if its thick enough and you solder it to multiple contacts at the connector. the mains plug only uses one wire per contact after all.

 

[Retroman839]

get a better gauge wire on the power lines of the loom


18-20 awg. gauge

From your local electrical outlet

 

[kingtreelo]

the power is fine now, i can regulate it down to 5.1 with the new PSU

 

[kingtreelo]

but my CP still wont work with with my pi2jamma

see thread

non working CP

 

[Ace`]

I am guessing you're missing one or more of the eight possible ground connections and the pi2jamma maybe doesn't use / join them all.

The first two pins and the last two pins on both sides of the jamma connector in your cabinet should be connected to ground.