UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Non-working Commodore PET 3016

Slothie · 10th Apr 2021, 2:34 pm

If I recall correctly the keyboard has a PCB with interleaved finger tracks on, which are bridged by plungers with conductive rubber pads on. Dust can easily stop the pads from making good contact. Cleaning them and the PCB very gently with isopropyl alcohol is the usually recommended procedure.

10th Apr 2021, 2:34 pm	#1508
Slothie Octode Join Date: Apr 2018 Location: Newbury, Berkshire, UK. Posts: 1,287	Re: Non-working Commodore PET 3016 If I recall correctly the keyboard has a PCB with interleaved finger tracks on, which are bridged by plungers with conductive rubber pads on. Dust can easily stop the pads from making good contact. Cleaning them and the PCB very gently with isopropyl alcohol is the usually recommended procedure.