Functional Checks
- System
  - B0 Drift Functional Check
  - Emergency Stop and Off Check
  - 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.
  - Magnet Rundown Unit (MRU) Functional Check
  - Power on sequencing 1
  - ICC hose and valve inspection, coolant fill, and coolant leak check
  - Power on sequencing 2
  - DAQA Check
  - Running the fMRI Quality Assurance (QA) tool
    The fMRI Quality Assurance (QA) Tool assesses the stability of the MR system.
  - Checking the RF screen room door
    Make sure the RF screen room door is functioning correctly.
  - Doing an MRU yearly service check (MRU, ERU, or EDU PM testing matrix)
    The model number is listed on the side of the MRU, ERU, or EDU. Refer to the appropriate vendor manual available from the online documentation library for applicable testing procedures.
- Radio Frequency (RF)
- Coils
- Magnet Enclosure
- Patient Table
- Global Operator Console (GOC)
- Patient/PAC
- Grounding & Leakage Current
- Spectroscopy

SIGNA™ Hero 3.0T Service Methods
5852800-8EN Revision 1.0
Object ID: 00000018WIA30A4FE20GYZ
Topic ID: id_13106056 Version: 4.1
Date: Jul 13, 2021 7:04:33 PM

Power on sequencing 2

Prerequisites


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


Required conditions
ICC Hose Inspection, Coolant Fill, and Coolant Leak Check completed.

About this task

The following provides an overview of each main component in this sequence:

List of Procedures

This document includes the following power on checklist procedures:

AC distribution sub breaker on
RF power amp sub breaker on
Gradient sub breaker on

Procedure

Turn on the switches of the following components in ISC.
- RF amp
- KASC chassis
- GP4
- PHPS2
Figure 1. Components switches
Switch the rest of breakers to on according to the following order.
1. AC distribution sub breaker on
2. RF power amp sub breaker on
3. Gradient sub breaker on
Push the EMO Reset SW on.