90 Chapter 4
Replacement Procedure
Inverter Board Replacement
Inverter Board Replacement
Tools Required
• torque screwdriver, T15 and T20
• torque screwdriver, T10 (set to 9 in-lb)
• torque screwdriver, T8 (set to 5 in-lb)
• flat edge screwdriver
Removal Procedure
Refer to Figure 4-20 for this procedure.
Step 1. Remove the Outer Cover as described in “Outer Cover Replacement” on page 54.
Step 2. Remove the Front Panel as described in “Front Panel Replacement” on page 56.
Step 3. Remove the Touch Screen Control Board as described in “Touch Screen Control Board
Replacement” on page 89.
Step 4. Remove the cable clamp (nylon) (item 1) from the front panel rear side cover.
Step 5. Remove the six TORX T10 screws (item 2) fastening the front panel rear side cover.
Step 6. Lift the front panel rear side cover.
Step 7. Remove the two TORX T10 screws (item 3) fastening the Inverter Board Assembly.
Step 8. Lift the Inverter Board Assembly, and disconnect the two cable connectors (item 4) from
the Inverter Board Assembly.
Step 9. Remove the two TORX T8 screws (item 5) fastening the Inverter Board for the plate.
Replacement Procedure
Step 1. Reverse the order of the removal procedure.
NOTE Set a torque to 9 in-lb for torque driver when fasten the TORX T10 screws (item 2, and
Item 3).
Set a torque to 5 in-lb for torque driver when fasten the TORX T8 screws (item 5).
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