Replacement
- Operator WorkSpace Replacement
  - Dell T5810 Computer Replacement
  - Dell T5810 Lower Level FRU Replacement
  - HUB Replacement
  - PCI AA Replacement
  - GOC Dust Filter Clean/Replacement Procedure
  - Temperature & Humidity Sensor Replacement
  - GOC PDU Replacement
  - Replacing/Installing the SCIM, Keyboard and Mouse
  - 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.
  - Starting up the host computer
    How to start the host computer.
  - 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.
  - LCD Monitor Replace with HP HC240
  - Replacing the host computer - Dell T5820
    Removal and installation instructions to replace the host computer when upgrading the system.
  - Replacing the GOC hard drive
    Removal and installation instructions for replacing the solid state drive (SSD) on the host computer.
  - Replacing the DVD drive on the host computer
    Removal and installation instructions for replacing the DVD drive on the host computer.
  - Replacing the CMOS battery - Dell T5820
    Removal and installation instructions for replacing the CMOS battery in the host computer.
  - Clean Dust Filter / Dust Filter Replacement
  - Replacing the Global Operator Cabinet Audio Assembly (GOCAA)
    Removal and installation instructions for replacing the Global Operator Cabinet Audio Assembly (GOCAA).
  - Replacing the Global Operator Cabinet (GOC) Power Distribution Unit (PDU)
    Removal and installation instructions for replacing the Power Distribution Unit (PDU) in the Global Operator Cabinet (GOC).
  - Replacing the CMOS battery - Dell T5820
    Removal and installation instructions for replacing the CMOS battery in the host computer.
- System Cabinet Replacement
- Magnet Enclosure and Outer Electronics
- Rear Pedestal Replacement
- LPCA Replacement
- Coil Replacements
- Lite Patient Transport Replacement
- Low Height Fixed Table
- Coil Blower and Chiller Assemblies

SIGNA MR355 / SIGNA MR360
Service Manual
5856356-3EN Revision 5.0
Basic Service Documentation. Copyright General Electric Company.
Object ID: 00000018WIA301A0030GYZ
Topic ID: id_13106352 Version: 1.1
Date: Jul 5, 2019 10:25:10 PM

HUB Replacement

Prerequisites

Table 1. Personnel requirements
Required persons	Preliminary requirements	Procedure	Finalization
1	Not Applicable	20 minutes	10 minutes

Table 2. Tools and test equipment
Item	Quantity	Effectivity	Part number	Manufacturer
Standard Screw Driver	1	-	-	-

Table 3. Safety

DANGER

FATAL ELECTRIC SHOCK HAZARD!

TO PREVENT POSSIBLE FATAL ELECTRIC SHOCK, Shutdown the Host computer and perform Lockout/Tagout of the GOC BEFORE STARTING THIS PROCEDURE.

Procedure

Shutdown application software on the Host computer. Lockout/Tagout power sources. Refer to Lockout/Tagout of the GOC.
Remove the service cover and disconnect ground cable

Figure 1. Remove the service cover and disconnect ground cable
Remove all cables that are connected to the HUB.
Remove the Velcro tapes from the HUB.
Remove the HUB from the HUB support bracket of GOC.

Figure 2. Remove Hub
Restore GOC by reverse order of removal.

Finalization

Restore power to the GOC.
Open C Shell and ping ip address in the hospital. Check that result of ping test is ok.
Perform Signal to Noise - Head Scan.