You must not have searched good enough like this post from February 2022.
Does anyone know what needs to be done to disable the button beep on a president hr2510? I dont like hearing that beep sound when i press a button on the radio. Google search turned up nothing and the service manual has no info on it.
or
even better from your own HTX100 post of the similar question this past July 2024.
I recently required a dead and butchered HTX-100, After fully recapping, a lot of trace repair, new TDA1905 amp, Used but good MRF477 it’s now working fine, But does anyone know how I can remove the button press beeping as it’s really annoying, Any help appreciated, Thanks