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Title: Hum noise Post by: slot one on March 08, 2012, 11:49:37 PM I just installed three sound cards on my IGT 2000 machines and set the sounds up but now when machines are on and sitting idle they all hum loud. I tried unplugging and used a two prong ground adaper but no help. Hum was the same Anyone have my answer? Thanks slotone
Title: Re: Hum noise Post by: Foster on March 09, 2012, 01:38:10 AM Look and see what MPU the machines have,
the label is under the MMLB2 boards that you added You should replace any that are not 504B with 504B (last 3 digits and rev letter) |