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Power consumption - JAMMA beasts

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BobA:
Suggest a regular arcade supply.  The one you have is rated at 5V 4A whereas a regular arcade power supply can easily provide 5V at higher current such as 12 or 15 Amps.  It is no wonder that your 5V power is insufficient.  There is usually no need for 24V unless your board has a special requirement.

Check out the 5V Amps of this power supply  Arcade Power Supply 5V 16A

johnrt:

--- Quote from: BobA on January 28, 2015, 04:49:36 pm ---Suggest a regular arcade supply.  The one you have is rated at 5V 4A whereas a regular arcade power supply can easily provide 5V at higher current such as 12 or 15 Amps.  It is no wonder that your 5V power is insufficient.  There is usually no need for 24V unless your board has a special requirement.

Check out the 5V Amps of this power supply  Arcade Power Supply 5V 16A

--- End quote ---
Yeah, I'm quite sure that's the problem. Well. It's time to order a decent PSU!

DeLuSioNal29:
Check your wiring too.  My buddy had similar issues with 2 in 1 Jamma splitters where the cheap JAMMA wiring would not suffice.  He ended up changing out the wiring to thicker gauge and it worked.

D

yotsuya:

--- Quote from: DeLuSioNal29 on January 29, 2015, 12:28:34 pm ---Check your wiring too.  My buddy had similar issues with 2 in 1 Jamma splitters where the cheap JAMMA wiring would not suffice.  He ended up changing out the wiring to thicker gauge and it worked.

D

--- End quote ---

This is a good tip. On some of those really cheap harnesses, the power wires, which are thicker, actually are thin wires with a thick coat of insulation to make them look more robust. I speak from experience.  :cheers:

harveybirdman:
If you replace the power wires on your JAMMA harness to thicker gauge, I've also read to jumper the grounds.

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