• SIGNA™ Hero 3.0T Service Methods
  • 5852800-8EN Revision 1.0
  • Object ID: 00000018WIA30D15280GYZ
  • Topic ID: id_2033505 Version: 2.2
  • Date: Jan 27, 2022 6:43:59 PM

Replacing the IRD fiber optic cables

The procedure for replacing the IRD fiber optic USB and DP cables.

Prerequisites

Personnel requirements
Required personsPreliminary requirementsProcedureFinalization
2-6 hours10 minutes
Consumables
ItemQuantityPart numberManufacturer
Self-locking Cable Tie

or

Cable Tie, Self-Locking

146-208758P5

or

5343293

-
Replacement parts
ItemQuantityPart numberManufacturer
Run P5006 Cable Harness, GOC to IRD Fiber Optic, contains 1 each of:
FRU, USB-AOC optic fiber cable, Host PC USB3.0 port to IRD-Right-J3, Run# P2027 48000 mm, GEN2 15778287-8
FRU, USB-AOC optic fiber cable, Host PC USB3.0 port to IRD-Left-J3, Run# P2029 48000 mm, GEN2 15778287-9
DP AOC, GOC DP Dongle to IRD Right DP, Run P2026 48000 mm 15879076
DP AOC, GOC DP Dongle to IRD Left DP, Run P2028 48000 mm 15879076-2
Safety

Before working in any GE Healthcare MR suite or performing any GE Healthcare service procedure, you must:

  • Have read and understood all hazard conditions and safety requirements in the latest revision of the GE Healthcare MR Service Safety Manual (5452735).
  • Have successfully completed all relevant GE Healthcare Environmental Health and Safety (EHS) courses (or for non-GE employees, equivalent workplace training courses).
  • Comply with all site-specific training and workplace safety requirements.

If you have any safety concerns at any time, do not begin work or immediately stop work and move to a safe location. Immediately contact your supervisor or site safety officer for instructions on how to proceed.

Before starting this procedure, GE recommends doing following:

  1. Make sure that the issue is resolved by directly connecting the cables from the IRD to the Host PC.
  2. If any IRD cables or components are swapped for troubleshooting, return them to their original position.
Note: Depending on the routing of the IRD cables, you may need to remove ceiling panels from the MR room, corridor, or operator room. Please notify and consult with the customer regarding the ceiling panel removal and other locations impacted by this procedure.

Procedure

  1. Shut down the host computer and apply LOTO. See Shutting down the host computer and Applying LOTO - ISC.
  2. Remove the covers to access the IRD cables:
    1. Removing the magnet left- and right-hand lower access panels.
    2. Removing the dockable table interface cover.
    3. Removing the magnet left and right control panel covers.
    4. Removing the magnet right-hand top cover
    5. Removing the magnet left-hand upper rear cover
    6. If the space between the magnet front cover and the magnet is not sufficient to route the new IRD cable(s), remove the magnet front cover. See Removing the magnet front cover.
  3. Disconnect the defective cable(s) from the Host PC.

    If you are not removing the defective cable(s), label the existing damaged IRD cable(s) as Defective, roll up the extra cable length, and secure it with a tie-wrap.

  4. Route the new IRD cable(s) the same way as the existing IRD cable harness is routed starting from the IRDs in the magnet room.
    Note: To connect the cables to the IRD, follow the instructions in Installing the magnet left and right control panel covers.
    Figure 1. IRD cable routing in the magnet room
  5. Reinstall the covers you removed:
    1. Installing the magnet front cover (if necessary).
    2. Installing the magnet left and right control panel covers.
    3. Installing the dockable table interface cover.
    4. Installing the magnet left- and right-hand lower access panels.
    5. Installing the magnet right-hand top cover.
    6. Installing the magnet left-hand upper rear cover.
  6. Connect the new, functional cable(s) to the Host PC as described in Step 3.
  7. Remove LOTO and restart the computer. See Removing LOTO - ISC and Starting up the host computer.
  8. Make sure the new cables work by running the associated diagnostic, if necessary. From the Common Service Desktop, select Diagnostics > Hardware Location > Magnet Room > In Room Display.

    If any issues are encountered, run Reset IRD Console and try again.

Finalization

  1. Make sure all system interconnects are returned to normal configurations.
  2. Do a check scan. See Doing a check scan.