Lethal Weapon 3 DMD Noise

[njay]

Hi Folks,

hopefully you can help me out i just got my LW3.
i switched it on when i was home and it started up fine but i heard a buzzing noise from the speakers i first thought
but when the dmd images toggle i hear the buzzing noise at the same time the display changes
the noise i do not hear when playing the game probaly because of the sound from the machine.

the guy i bought it from says it has something todo with grounding in my wallplug or something and that it could not damage anything

but i want a second opinion thanks for answering 

[shardian]

Does your wall plug have the ground pin?

[njay]

alright thanks pinballjim

shardian the wallplugs in the netherlands usually only have the blue and the brown wires so positive and negative feed

[shardian]

ewww, international wiring. There is a section on international wiring differences in the pin repair manual. That's about all I can tell you.

[njay]

yeah the guy said to me that even the lamps could be dimmer because of the 220v the cabinet gets