• Topic ID: id_16157910
  • Version: 2.0
  • Date: Apr 9, 2020 8:49:22 PM

Detector Memory Board Replacement

Prerequisites

Overview

Replace failed Detector Memory Board (DMB):

  • Remove covers.

  • Remove tie-wraps.

  • Replace part.

  • Assemble gantry

  • Verify operation

Figure 1. Detector Memory Board Replacement

Procedure

  1. Position the table to its lowest position.
  2. Remove gantry right side cover.
    3. Notice Image
    • notice
    • Always turn OFF the HVDC before the 120 VAC. Turning OFF 120 VAC power before HVDC power can result in equipment damage.
  3. Turn OFF Axial Enable, HVDC, and 120VAC switches on the Service Switch panel.
  4. Cut Tie-wraps as needed.
  5. Disconnect cable connection from DMB assembly.
  6. Loosen thumbscrews with the flat-blade screwdriver and remove assembly from mounting bracket.
    7. Notice Image
    • notice
    • Assembly is permanently attached to the detector. Do not pull on the cord. You will damage the detector, resulting in complete detector replacement.
  7. Remove the HD Connector Screw locks with the 3/16” nut-driver.
  8. Remove two (2) 2.5 mm hex screws from the under side of the assembly.
  9. Remove the two (2) Phillips screws holding the module to the base.
  10. Install new module in reverse order.

Finalization

  1. Restore power and verify the error log is clear of faults.