Planmeca Proline EC ceph, Техническое руководство

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Chapter H - PARTS REPLACEMENT & REPAIR
H-4 Planmeca Proline EC X-ray unit
CIRCUIRT BOARDS
Technical Manual
Temple rest motor
a) Remove all the panduits
b) Remove the PCB.
c) Unscrew the motor axle out of the nut.
d) Unscrew two screws from the plate
e) Remove the motor.
f) Remove the shaft.
3 CIRCUIRT BOARDS
3.1 Power supply PCB
a) Remove the cover of the rotating part. Remove the EMC-cover of the PCB.
b) Detach all the connectors.
c) Unscrew the fixing screws.
d) Remove the board.
3.2 Keyboard processor PCB
Memory on the board
There are memory chips on the board and if you change the board, the information what is in
the memory will be lost. Some of the information can be reprogrammed.
Information what will be lost:
- Exposure factors memory
- Exposure count memory
- Error history memory
If possible, at least the exposure count memory should be write to on a paper for the future
use before replacing the board.
Information what must be reprogrammed:
- Time and date
- Exposure warning signal tone
- Up-down motor speed settings
Changing the board
a) Remove the lower shelf cover. If the unit has old version of covers the holder of the chin rest
has to be removed before removing the cover.
b) Remove the old board and replace it with a new one.