Bally back box socks backwards!

[Fortytwo]

Hello,
I am repairing a space invaders for someone. Game had horrible power supply issues. The owner previously installed a new aux driver board to support led's. When I started installing them about half didn't work. I realized the sockets were in backwards. Is this common or just a Monday, new guy on the line mistake. I have since fixed it.
Thanks
FortyTwo

[ralphwiggum]

Definitely not common..... you say they are backwards, it could be that your LEDs have Polarity. Did incandescents work in there without issue?

[Fortytwo]

Backwards for led's. The standard bulbs worked, the outside was attached to the control wire not the common. Luckily I have a desoldering station that made fast work of it.

[ralphwiggum]

I am a sucker for those Infinity backglasses, they look great!

[cad-kid]

Neat looking machine!