Replacing The Cpu Pcb - Planmeca ProOne Technical Manual

CHAPTER D
MOVING COLUMN
2.3

Replacing the CPU PCB

WARNING
The X-ray unit contains live mains voltage parts. Always
disconnect the X-ray unit from mains before replacing the CPU
PCB.
Open the front panel of the moving column as described in section 1.1 "Opening the front
panel" on page D-1.
Remove the cable clamp by unscrewing the two screws that hold it in position.
To remove the CPU PCB, first disconnect all cables from the PCB (note cable connection
locations). Then remove the five screws that secure the PCB to the column frame (white
arrows in Fig. 64).
Control panel flat cable
(yellow mark NOT visible)
Figure 64
Install the new CPU PCB in reverse order.
NOTE All cable connectors are labeled.
NOTE When connecting the control panel flat cable, make sure that the cable does not get
twisted and that the side with the yellow mark faces toward the back of the column
as shown in Fig. 64.
D-4 Planmeca ProOne
Cable clamp
PARTS REPLACEMENT
CPU PCB
Technical Manual