Valleylab CUSA EXcel-8 - Install the Machine Control PCB; Remove the Machine Control PCB

Ultrasonics and Machine Control Printed Circuit Boards
Remove the Machine Control PCB
Notice
Electrostatic Sensitive Devices This unit contains electrostatic sensitive
components. When repairing the system, work at a static control workstation.
Wear a grounding strap when handling electrostatic sensitive components.
Handie circuit boards by their nonconductive edges. Use an antistatic container
for transport of electrostatic sensitive components and circuit boards.
1. Attach an ESD wrist strap, then disconnect the 50-pin ribbon cable
from the Machine Control PCB (J1).
Refer to Figure 11-7.
Figure 11-7.
Removing the Machine Control PCB
from the control panel assembly
Gontrol panel
< assembly
Machine
Control PCB
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ング
a a ~
~ |
~
2. Remove five screws (M4 Phillips) from the Machine Control PCB.
3. Remove the Machine Control PCB from the control panel assembly.
Install the Machine Control PCB
1. Attach an ESD wrist strap, then remove the new Machine Control PCB
from its antistatic bag.
2. Position the new Machine Control PCB in the control panel assembly.
Refer to Figure 11-7.
3. Replace five screws (M4 Phillips) in the Machine Control PCB.
4. Connect the 50-pin ribbon cable to the Machine Control PCB (J1).
11-14 CUSA EXcel-8 System Service Manual