Planmeca Proline CC, Technical Manual

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Chapter G - TROUBLESHOOTING
G-12 Planmeca Proline CC panoramic x-ray
Technical Manual
9 TROUBLES IN ADJUSTMENT OF FOCAL TROUGH MOVEMENT
9.1 Forwards/backwards movement does not function
9.2 Movement area abnormal
9.3 Erroneous position indication
The position indication is correct if the display shows 00 when the light meets the bite piece.
Erroneous position indication may depend on the fact that the display has not been adjusted to
zero after installing the reference Hall sensor or keyboard processor PCB or that the accumulator
is empty.
SYMPTOM POSSIBLE REASON CORRECTIVE ACTION
Motor is not running Keyboard out of order.
PCB out of order or connector
loose.
Motor out of order or connector
loose.
Motor stalls Drawing screw or nut damaged.
Obstruction in the mechanism.
Motor is running but mechanism is
immobile. Cogged belt broken or loose.
Cogged belt wheel glides from the
axle attachment.
Thread of drawing nut damaged.
SYMPTOM POSSIBLE REASON CORRECTIVE ACTION
Movement area abnormal Position information has disap-
peared.
Reference hall sensor defective.
Reference magnet incorrectly
installed.