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Replacements
Magnet Enclosure and Outer Electronics
Replacing the laser bracket assembly
This procedure provides steps to replace the laser bracket assembly.
Installing the laser bracket assembly
Installs the laser bracket assembly onto the magnet front cover.

Replacements
- Operator Workspace
- ISC (Integrated System Cabinet)
- ICC (Integrated Cooling Cabinet)
- Magnet Enclosure and Outer Electronics
  - Removing and installing the magnet enclosure covers
    Provides removal and installation instruction for all magnet enclosure covers.
  - Replacing the front endbell
    Removes the front endbell and installs a replacement endbell.
  - Replacing the rear endbell
    Removes the rear endbell and installs a replacement rear endbell.
  - Replacing the 1-piece bridge
    Replace the 1-piece bridge assembly.
  - Replacing the Dual Drive Transmit Receive Switch (DTRSW) and two-channel preamp
    Removal and installation instructions for replacing the Dual Drive Transmit Receive Switch (DTRSW) and two-channel preamp in the magnet outer electronics.
  - Replacing the DS Digitized Per Pin Remote Receiver (DPP RRx)
    Removal and installation instructions for replacing the DS Digitized Per Pin Remote Receiver (DPP RRx) in the magnet outer electronics.
  - Replacing the DS Digitized Per Pin (DPP) Receiver Distributor (Rx Dist)
    Removal and installation instructions for replacing the DS Digitized Per Pin (DPP) Receiver Distributor (Rx Dist) in the magnet outer electronics.
  - Replacing the table interface assembly
    Removal and installation instructions for replacing the table interface (TIF) assembly in the magnet outer electronics.
  - Replacing the Operator Control Panel (OCP) and the In-Room Display (IRD)
  - Replacing the IRD fiber optic cables
    The procedure for replacing the IRD fiber optic USB and DP cables.
  - Replacing the speaker
    Removes the speaker in the rear endbell and installs a replacement speaker.
  - Replacing the laser bracket assembly
    This procedure provides steps to replace the laser bracket assembly.
    - Removing the magnet left- and right-hand lower access panels
      Removes the left- or right-hand lower access panel from the magnet front cover.
    - Removing the dockable table interface cover
      Removes the dockable table interface cover from the magnet front cover.
    - Removing the front endbell
      Removes the front endbell from the magnet.
    - Removing the laser bracket assembly
    - Installing the laser bracket assembly
      Installs the laser bracket assembly onto the magnet front cover.
    - Installing the front endbell
      Installs the front endbell onto the magnet.
    - Installing the dockable table interface cover
      Installs the dockable table interface cover onto the magnet front cover.
    - Installing the magnet left- and right-hand lower access panels
      Installs the left- or right-hand lower access panel onto the magnet front cover.
    - Doing DQA calibration
      The DQA tool determines proper gradient polarity and proper gradient wiring by scanning a series of axial and coronal images of the DQA III phantom.
    - Doing a check scan
      A check scan is done at the conclusion of many procedures. This functional check assures the unit is in good clinical working order.
  - Replacing the bore light
    Removes a bore light from the body coil and installs a replacement bore light.
  - Replacing the RF body coil air flow sensor
    Replace the RF body coil air flow sensor.
  - Replacing the heat exchanger temperature sensor
    Follow this procedure to replace the heat exchanger temperature sensor.
  - Replacing the GE Illuminated Logo
    Removes the illuminated GE logo from the magnet front cover and installs a replacement logo.
  - Replacing the ambient temperature sensor
    Replacing an ambient temperature sensor is a complex process, which includes tasks to fulfill the required conditions as well as tasks for finalizing the installation after replacing the sensor.
  - Replacing the 1-pc bridge trim
  - Body Coil Gap Foam Replacement
  - Body Coil Mount and Base Plate (Front) Replacement
  - Body Coil Mount and Base Plate (Rear) Replacement
- Coil Replacement
- Patient Table
- MDP
- Pen Panel

SIGNA™ Hero 3.0T Service Methods
5852800-8EN Revision 1.0
Object ID: 00000018WIA30AF0520GYZ
Topic ID: id_2007292 Version: 3.8
Date: May 28, 2020 4:50:27 PM

Installing the laser bracket assembly

Prerequisites


Personnel requirements
Required persons	Preliminary requirements	Procedure	Finalization
1	-	5 minutes	-


Tools and test equipment
Item	Quantity	Part number	Manufacturer
Nonmagnetic Titanium Service Tool Kit, Small Set	1	5113258	-


Replacement parts
Item	Quantity	Part number	Manufacturer
Laser Bracket Assembly	1	5720128	-

Procedure

Install the laser bracket assembly (5720128) onto the front cover.

Figure 1. Laser bracket assembly
Install two M10 Flat Washers (2000-M10-17) and two M10 x 25 Socket Head Cap Screws (1000-M10C025-33) securing the laser light bracket to the front cover.

Figure 2. Laser bracket assembly hardware
1 Screws
2 Washers
Connect the cable connector to the laser bracket assembly connector.

Figure 3. Laser bracket assembly connector