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(Topic ID: 169747)

close encounters

By Boltronix

7 years ago



Topic Stats

  • 7 posts
  • 4 Pinsiders participating
  • Latest reply 7 years ago by Milltown
  • No one calls this topic a favorite

You

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#1 7 years ago
OP
 
JBS

Boltronix

Pinside member

7y 44,900 276 7

just install ni-wumpf and a new power supply in my ss close encounters. when i turn on machine speaker hums real loud. of course i quickly turn machine off. What would you do next? If anyone knows which way the connector is installed on the bottom of the power supply please let me know. As you may know this connector is not keyed and could be installed either way.

thanks in advance

Walt

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#2 7 years ago
 
DUG

wiredoug

Pinside member

AU Melbourne

11y 79,050 2,741 18

the earth wire is obvious.. its either black or green usually and a bit bigger than the others. its third from the left. pin 3

if you got that connector backwards you have way more trouble than a loud buzz to fix now

1 week later
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#3 7 years ago
 
MIL

Milltown

Pinside member

US Palmer, MA

7y 67,350 1,399 11 7

Connector deff backwards .. there's one connector that can go either way and if wrong it will do this.. did it on mine.. blew a fuse. Check yer plugs in box... I ended up frying the board.. hard lesson..

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#4 7 years ago
 
MIL

Milltown

Pinside member

US Palmer, MA

7y 67,350 1,399 11 7

New board 125 bucks..

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#5 7 years ago
 
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ForceFlow

Pinside Moderator

9y 236K 31,324 268 14

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#6 7 years ago
OP
 
JBS

Boltronix

Pinside member

7y 44,900 276 7

ps connector is now correct with no damage!!!! go figure, should have looked at schematics first, idiot, thanks all.

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#7 7 years ago
 
MIL

Milltown

Pinside member

US Palmer, MA

7y 67,350 1,399 11 7

Haha.. right on... it is,a horrible noise when wrong.. glad ya didn't fry it...

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