Hi Fellas,

I have a Sony LG10 DRO on my milling machine, I gather it's a mid 1990's model (two axis DRO). I've only had it a short while (along with the mill) and have hardly used it, but when it's powered up and in use (while the mill is not running) I can hear a high pitched noise coming from the unit, it sounds a bit lower in tone than a mozzie right near your ear

I took the cover of the unit off and had a look in there but there doesn't appear to be any problems or moving parts causing the noise, so is this noise common? If you have one of these DROs does it make a noise? Any help would be tops


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