After erasing a tape I have a high pitched noise when I step on the foot pedal

Possible pilot shaft bushing or throw out bearing going bad.

It sounds to me that you might have a mechanical problem in the machine. I am not familiar with this machine, but I have worked on lots of tape machines. The belts and rubber pieces can get slick or stretched causing problems.

Could be the squeler on the brakes. Does that to let you know it's time for brake job. Have your brakes checked

Make sure the button for back space is not at max is the second button from the right side if problem don’t get fix unplug the pedal from unit and try to play and stop if unit work Ok the problem is your pedal. Needs to be replaced.

Try jacking the unit up. Start it up and try moving pushing the forward and reverse back and forth and see if it does it then. It sounds like an oil way in the hydrostatic unit has a check valve stuck. Of course make sure that the fluid lever is up. Hope this will help you. donnyb60

The problem is with the capstan motor. More than likely it has developed a 'flat spot' and won't spin up. The clicking noise you hear is the solenoids trying to pull the heads into place, but because the motor isn't turning, it can't pull the heads into place.

Have you crawled under the vehicle and personally inspected your exhaust line from manifold to tail pipe? The roaring sound usually occur when there is a hole in the exhaust line. I had it happen to my forester before. A hole half the size of a dime made my subaru sound like my old 74 chevy pickup.

Sounds like a feed back, make sure the mike is off, otherwise it gives a high pitched sound.

There being two strips of orangey tape at the bottom of the rods wipe clean the two thin wires stretching the length of the ionic breeze each time you remove the filter elements to clean the filter. Seems like these wires may be emitting the audible high pitched noise if dirty.
Frank

I am to believe that your static sensor on the playing head is touching the the head and it sould not. just bend it up "slightly" and the noise should disappear