Radni,
There is a black box on underneath the turntable toward the left hand side. The power cord plugs into it. Unplug the power cord and remove the two screws. There you will find a capacitor. Replace it as it is no longer suppressing the engagement of the switch, which is what you are hearing. That, or turn the volume down before setting the stylus into the groove.
You can do an online search and get the pdf of the 1228 service manual.
Norman
There is a black box on underneath the turntable toward the left hand side. The power cord plugs into it. Unplug the power cord and remove the two screws. There you will find a capacitor. Replace it as it is no longer suppressing the engagement of the switch, which is what you are hearing. That, or turn the volume down before setting the stylus into the groove.
You can do an online search and get the pdf of the 1228 service manual.
Norman