• Topic ID: id_23553911
  • Version: 2.0
  • Date: Sep 26, 2020 10:14:02 PM

Slipring Transmitter Replacement (RT)

Prerequisites

Procedure

  1. Move table to its lowest elevation.
  2. Remove rear gantry cover Gantry Rear Cover Removal and Re-install.
  3. Turn OFF all 3 service switches (Axial Drive, HVDC, 120VAC) on the Service Switch Panel and follow Lockout/Tagout procedures.
  4. The transmitter is located on the back of the slipring. Locate it by rotating gantry.
    5. Notice Image
    • notice
    • Slip Ring Contamination Possible. Be careful to not contaminate slipring or signal.
  5. Remove J1 and J3 cables.
  6. Using a 2.5mm hex key, remove screws holding the transmitter to the slipring.

    Figure 1. Slipring Transmitter

  7. Replace transmitter only with a 5.x RT transmitter. Transmitter should be labeled as specific to RT (or Stargate) systems.

Finalization

  1. Hardware Reset
  2. Acquire 10 scouts: (120kV/40mA, 1000mm table movement)
  3. Acquire 100 axials: (120kV/80mA, 0.5 sec. Scan)
  4. Acquire 1 helical: (120kV/40mA, 30 sec. Scan),
  5. Acquire 10 axial scans: (120kV/400mA, 4 sec. Scan)
  6. Verify NO increase in corrected or uncorrected FEC errors.