Greg Linton
New Member
Thanks for the help, just now fixed a Denon PMA-2000R!
It was pretty simple to get the input selector switch out, which has its own little PCB.
Just take the case cover off.
Take out 8 screws holding the front panel on.
Also the ground strap screw.
Remove the Input selector switch's knob and retaining nut.
Tilt the front panel down and carfully reach in and pop the ISS board out from the 4 plastic hold downs.
Then you can undo the single wire harness going to it. Did not have to tilt amp to the side.
There was no extra metal bracket on the switch so no soldering required.
Although if you could remove the LEDs it would be way, waaay easier to get the metal pins that need to be
squeezed together, to slide out of the brown board the switch sits on! Just on the one side though, small needle nose fit just fine for the other side.
It seemed as though there was a residue of oil, maybe dialectric grease, coating parts of the switch? I simple wiped everything down with Iso-
alcohol, put back together, problem solved
Hello. I have a PMA 2000 IVR. After gaining access and removing the PCB I saw that the switch cover was not easy to remove..I didn’t want to try and squeeze the two metal pins, but I saw that it was easy to pry up the cover with a jewelers screwdriver. There is a round metal wavy ring above it the applies the pressure. I just sprayed contact cleaner into the gap and turned the knob continually. Then i flushed with Iso alcohol. Followed up with Deoxit Gold - let it seep in and turned the knob. It worked fine afterwards. Time will tell for how long.