Question about Pioneer Car Audio & Video
Although I can't check this fix works for 1 month, a really simple explanation and fix was offered.
The rotary knob/control has 2 contacts, which when the knob is rotated c/w or anti-c/w it generates a pulse. The diagnosis is that as the remote still works, the PCB & volume circuit is fine. What is likely is that the 2 contacts/switches have become dirty or clogged.
SUGGESTED FIX: Take head unit faceplate apart to access PCB & rear of rotary control (4 screws). Spray WD40 into rear of volume control and rotate liberally to clean contacts. Dry of with lint free cloth, tissue or air dry.
I am confident this will work and the volume control will function again.
Posted on Sep 28, 2008
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Posted on Jan 02, 2017
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