Hi and welcome to JustAnswer. Thank you for the question and your patience. Should you still need assistance for information purposes only...
Initially and if the cleaning was not corrective, are you then considering a DIY (do-it-yourself) repair approach?
Unfortunately, the parts are no longer readily available. Please click / tap HERE for Pioneer North America's current inventory on parts for this model.
Still, it would be to your advantage to consult with and/or seek the services of an authorized Pioneer Service Center for product familiarity.
Would contact information with Pioneer Canada serve your need please?
Please call / inquire from 1-***-***-**** and 1-***-***-****.
Or click HERE and key in your City and State, or Zipcode. Select Product Line / Home Audio Product and then click on the FIND IT button.