You are removing and replacing a defective buzzer. After turning off the unit and
removing power from the unit, the next step is which of the following?
a. Remove the hand piece and/or the foot switch.
b. Remove the back six screws.
Remove and replace the buzzer.
d. Replace the back cover and screws.
You have isolated a malfunction to a faulty hand piece. After turning off the unit and
removing the power from the unit, you should next:
a. Remove the hand piece.
b. Restore power to the unit.
Replace the hand piece with a new one.
d. Perform an operational checkout.
You have isolated a malfunction to the printed circuit board. What is the last step in
the removing and replacing process for the pcb?
a. Unplug the hand piece from the unit.
b. Replace the printed circuit board.
Perform operational checkout.
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