Adcom GFP-555 II

I have from the outside pulling the knob and felt but still there. Do I need to go internal to do this on a gfp 555 II?

Whats a good spray? I will try again Thanks!

Don't know about your area but I would contact Jon Morris in Wyoming if you need to service your Adcom, I purchased a rebuilt 545 from him which is just spectacular

PM me if you want the details

Ramm, I've had the 565 since new and haven't had a problem, but...  Looking at the responses I thought it best to chime in.  To clean the switch is probably all that's needed but you have to open it up.  The switches are located on the rear of the circuit board and are operated by a flexible ribbon from the front panel.

I appreciate all the input from everyone and will take the time to go internally with some tuner spray to see if this remedies the intermittent static at the listening selector switch. Tech3149 your saying the cleaning may be needed at the rear of the circuit board not directly into the manual selector switch behind the faceplate? I guess I will understand better what saying after I go inside.