5. Removal and Replacement of Major Components and Modules
5-57
L.
DRIVER PCB “A”, DRIVER PCB “B”, & HEATER CONTROL PCB
(
Reference Drawing:
403-00132)
Removal
1.
Ground strap must be worn.
2.
Remove Power Driver Module. (See Step V.)
3.
Remove 8X pan head Phillips screws from back of EMI Filter
PCB.
4.
Unplug EMI Cable from Driver PCB “B”, JP4.
5.
Remove 6X pan head phillps screws from each side of Driver
PCBs “A” & “B”.
6.
Remove 4X pan head Phillips screws & Transistor Mounting
Clamps.
7.
Gently slide Driver PCBs “A” & “B” out of Driver Mounting Blocks.
8.
Store Driver PCBs “A” & “B” in static proof bags.
9.
Remove 4X pan head Phillips screws from Heater Control PCB.
10.
Remove Heater Control PCB and store in a static proof bag.
Installation
1.
Ground strap must be worn.
2.
Slide Driver PCBs “A” & “B” into Driver Mounting Blocks.
3.
Reinstall 4X pan head Phillips screws & Transistor Mounting
Clamps.
4.
Reinstall 6X pan head Phillips screws into each side of Driver
PCBs “A” & “B”.
5.
Reattach EMI Cable to Driver PCB “B”, JP4.
6.
Reinstall 8X pan head Phillips screws into back of EMI Filter PCB.
7.
Reinstall 4X pan head Phillips screws into Heater Control PCB.
8.
Reinstall Power Driver Module (See Step V), perform calibration
and System Operational Check-Out, Chapter 6 & 7.