MB1 SERIES 10 MIC/LINE INPUT RA3378 REV MB the lap shop decides if

the lap shop decides if they are ok or not

Not opened one up but can guess there will be one or two bearings inside that could be replaced as I do that on other units and clean etc

Simple sensor board for the MSR24 tension arms i have a left or right version right has a red plug left white

Pin2 to FF cold side button

MB1 SERIES 10 MIC/LINE INPUT RA3378 REV MB the lap shop decides ifRemoved from a working radio station complete pcb with Stereo alps K fader and the front panel metal work only. It seems there are many versions of the same board and it would be populated as per customers request, I have put the part number and the revision number as i presume thats how you would have ordered it from the factory