Replacement of PAC
Prerequisites
Overview
The PAC is located under the right side of the magnet enclosure.
Figure 1. PAC Location

1 Removal of PAC
Procedure
- Remove right front and rear skirt cover. (Refer to Skirt Cover Removal)
- Cut the tie-wraps fixing cables.
- Disconnect the all cables attached to the PAC.
- Remove 2 screws holding PAC to tray.
- Remove the PAC.
Figure 2. PAC Removal

2 Installation of New PAC
Procedure
- Place new PAC on tray.
- Tighten 2 screws.
- Connect the all cables.
- Fix the cables with tie-wraps.
- Restore skirt covers.
- Remove tag-out tag from circuit breaker.
- Restore power.
3 Finalization
Procedure
- Perform PAC Manual Test.
- Perform Signal to Noise - Head Scan.