I am a neophyte when it comes to electronics, but I have decided to
replace a small burned-out incandescent bulb inside the display panel
of my old Marantz 25-watt receiver (circa 1980). Easy job. Shouldn't
take more than 5 minutes. Remove the front panel from the rest of the
case by removing 4 nuts from the front panel. Then pull off the
control knobs. The problem is that the control knobs won't budge! I
checked carefully, and there are *no* set screws, so that isn't the
problem. The knobs are just your run-of the mill metal knobs. The
only way to remove the front panel is to first remove the knobs, so
that is why I believe the knobs are "removable".

I don't want to damage anything inside the enclosure that the knobs
are attached to. And frankly, I can live with a half-dark display
panel.

Before I decide to leave well enough alone, I thought I'd ask if there
are any tricks involved in safely removing tightly-attached knobs. Or
should I just become more "assertive" in my pulling?

TIA

Hi,

Are the knobs totally plain? If they have caps then lever
those off and you will find a nut under the cap.

Regards
Jeff