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Failure Investigation for Electronic Parts
Does not operate when the foot controller is used.
Does not operate when the foot controller is
pressed
Replace the foot controller
jack assy.
• Replace foot controller
or
• Replace the foot controller
jack assy.
Connect the foot controller; when the
foot controller is pressed does the
resistance across pins 1-3 of the foot
controller jack assy. connector vary
from several
Ω
to 10k
Ω
?
Is the resistance between pins 2-3 on the
foot controller jack assy. connector normal?
• Foot controller not connected ... 1Ω or less
• Foot controller connected ... ∞
N
N
Replace main PCB assy.
Y
Y
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