Home
Replacements
Magnet Enclosure and Outer Electronics
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.
Calibrating transmit/receive dynamic disable
Calibrates the open circuit fault detection levels of the dynamic disable drivers in the driver module. Do this procedure after system installation, driver module replacement, body coil replacement, body hybrid replacement, or replacement of cabling between any of the previously listed devices.
Calibrating transmit/receive dynamic disable
Calibrates the open circuit fault detection levels of the dynamic disable drivers in the driver module. Do this procedure after system installation, driver module replacement, body coil replacement, body hybrid replacement, or replacement of cabling between any of the previously listed devices.

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.
    - Electrical Safety
      You must follow all recommended safety procedures when servicing and working near energy sources.
    - Shutting down the host computer
      Shutting down the host computer shuts down the system safely and turns off the power to the host computer.
    - Applying LOTO - ISC
      Apply LOTO to the Power Distribution Unit (PDU) when servicing this item in the Integrated System Cabinet (ISC). Applying LOTO ensures a safe environment when working on this part.
    - Removing the magnet service access trim
      Removes the service access trim. The trim panel covers the screws securing the front and rear service access panels.
    - Removing the magnet front service access panel
      Removes the front service access panel from the magnet to allow access to components mounted on the left-hand side of the magnet.
    - Removing the magnet rear service access panel
      Removes the rear service access panel from the magnet to allow access to components mounted on the left-hand side of the magnet.
    - Removing the Dual Drive Transmit Receive Switch (DTRSW) and two-channel preamp
      Remove the Dual Drive Transmit Receive Switch (DTRSW) and two-channel preamp from the magnet outer electronics.
    - Installing the Dual Drive Transmit Receive Switch (DTRSW) and two-channel preamp
      Install a Dual Drive Transmit Receive Switch (DTRSW) and two-channel preamp in the magnet outer electronics.
    - Installing the magnet rear service access panel
      Installs the rear service access panel onto the magnet enclosure. This panel covers the components mounted on the left-hand side of the magnet.
    - Installing the magnet front service access panel
      Installs the front service access panel onto the magnet enclosure. This panel covers the components mounted on the left-hand side of the magnet.
    - Installing the magnet service access trim
      Installs the service access trim. The trim panel covers the screws securing the front and rear service access panels.
    - Removing LOTO - ISC
      Removing locks and tags, and restoring power to the ISC (Integrated System Cabinet) Power Distribution Unit (PDU).
    - Starting up the host computer
      How to start the host computer.
    - Calibrating transmit/receive dynamic disable
      Calibrates the open circuit fault detection levels of the dynamic disable drivers in the driver module. Do this procedure after system installation, driver module replacement, body coil replacement, body hybrid replacement, or replacement of cabling between any of the previously listed devices.
      - Calibrating transmit/receive dynamic disable
        Calibrates the open circuit fault detection levels of the dynamic disable drivers in the driver module. Do this procedure after system installation, driver module replacement, body coil replacement, body hybrid replacement, or replacement of cabling between any of the previously listed devices.
        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.
    - Doing system gain calibration (PX28 or later)
    - Calibrating for quadrature
    - Finalizing the Dual Drive Transmit Receive Switch (DTRSW) and two-channel preamp replacement
      This procedure finalizes the Dual Drive Transmit Receive Switch (DTRSW) and two-channel preamp replacement.
  - 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.
  - 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: 00000018WHA30CB62GYZ
Topic ID: id_2001434 Version: 5.5
Date: Nov 30, 2021 9:01:35 PM

Calibrating transmit/receive dynamic disable

Prerequisites


Personnel requirements
Required persons	Preliminary requirements	Procedure	Finalization
1	-	3 minutes	30 minutes

About this task

Calibration Wizard is a restricted service tool. Make sure your C-class or M-class service key is installed.

Procedure

(For proprietary mode)
1. On the Common Service Desktop, select Calibration > Install and Calibration Wizard.
2. Click Click here to start this tool.
3. After the calibration wizard starts, select TR Dynamic Disable Calibration from the menu.
4. Review the pre- and post-dependencies, and then click Click here to start this tool.
(For non-proprietary mode)
1. On the Common Service Desktop, select Calibration > TR Dynamic Disable Calibration.
Result
When the calibration is complete, the results will show in the test results text area (see figure below).
Figure 1. Test results window
Do a check scan. See Doing a check scan.

Home
Replacements
Magnet Enclosure and Outer Electronics
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.
Calibrating transmit/receive dynamic disable
Calibrates the open circuit fault detection levels of the dynamic disable drivers in the driver module. Do this procedure after system installation, driver module replacement, body coil replacement, body hybrid replacement, or replacement of cabling between any of the previously listed devices.
Calibrating transmit/receive dynamic disable
Calibrates the open circuit fault detection levels of the dynamic disable drivers in the driver module. Do this procedure after system installation, driver module replacement, body coil replacement, body hybrid replacement, or replacement of cabling between any of the previously listed devices.