• SIGNA MR355 / SIGNA MR360
  • Service Manual
  • 5856356-3EN Revision 5.0
  • Basic Service Documentation. Copyright General Electric Company.
  • Object ID: 00000018WIA30CE1F20GYZ
  • Topic ID: id_13106728 Version: 3.0
  • Date: Aug 29, 2019 1:54:36 AM

1.5T HD 8Ch High Res Brain Array Coil Replacements

Prerequisites

Table 1. Personnel requirements
Required personsPreliminary requirementsProcedureFinalization
10 minutes30 minutes0 minutes
Table 2. Tools and test equipment
ItemQuantityEffectivityPart numberManufacturer
¼ inch flat blade screwdriver1---
Table 3. Replacement parts
ItemQuantityEffectivityPart numberManufacturer
Refer to FRU DocumentNA---
Table 4. Safety

About this task

Follow this process to replace field replaceable units for the 1.5T HD 8 Channel High Res Brain Array by Invivo. (M3335LZ)

Cable Replacement

Cable Continuity Check

Procedure

Cable Continuity checks are found in, HD 8Ch High Res Brain Array Coil Troubleshooting Tips.

Cable Replacement Procedure

Procedure

  1. The 4 coil connector mounting screws are located at the superior end of the coil. Remove the 4 coil connector mounting screws as detailed in illustration1.
    Figure 1. Remove four screws
  2. Remove the coil connector by pulling away from the coil in the superior direction.
  3. The steps for installation of the new cable are simply the reverse order of the steps described for removal.

Mechanical Parts Replacement

Mechanical Hardware Check

About this task

Lift the coil latches on both sides of the coil, and slide the coil to its superior and inferior extents. The coil must slide freely on the base with no binding or grinding. Make sure that the coil does not move with respect to the baseplate when the latches are locked down.

Procedure

    Replacement of Inferior or Superior Mirror

    About this task

    There are two mirrors included with the 1.5T HD 8 Channel High Res Brain Array: To install either mirror, align the grooves in the base of the mirror with the grooves in the coil mirror mount, and slide the mirror into position. Press and hold the release button on the mirror before attempting to remove the mirror.

    • Superior Mirror

    • Inferior Mirror
      Figure 2. Superior Mirror
      Figure 3. Inferior Mirror

    Procedure

      Replacing the Mount Plate Assembly

      Procedure

      1. Lift the coil latches on both sides of the coil, and slide the coil to its superior extent.

        Press on the coil release button on the base plate.

        Slide the coil complete off the baseplate

        Figure 4. Release button
      2. Remove the screws (eight) .
        Figure 5. Mount plate screws
      3. Replace the mount plate assembly and fastened the screws removed in the previous step.
      4. Slide the coil back on to the baseplate

      Replacing the Spring Foam

      Procedure

      1. Remove the screw from the release button assembly .
        Figure 6. Release Button Assembly
      2. Remove the slider from the release button mounting block .
        Figure 7. Remove Slider
      3. Remove and replace the spring foam.
        Note:

        There are 2 spring foams in each Spring foam FRU set. Place the slider with the new spring foams back in to the mounting block Attach the mounting block back to the baseplate using the screw removed in step 1

        Figure 8. Replace Spring foams

      What to do next

      Finalization

      No finalization steps.