SIGNA MR355 / SIGNA MR360
Service Manual
5856356-3EN Revision 5.0
Basic Service Documentation. Copyright General Electric Company.
Object ID: 00000018WIA3099BF20GYZ
Topic ID: id_13106095 Version: 1.1
Date: Jul 5, 2019 11:49:11 PM

Magnet Enclosure Control Panels

Prerequisites

Table 1. Personnel requirements
Required persons	Preliminary requirements	Procedure	Finalization
1	5 minutes	30 minutes	5 minutes

Table 2. Tools and test equipment
Item	Quantity	Effectivity	Part number	Manufacturer
Non ferrous 3mm L-wrench	1	-	-	-

Table 3. Required conditions
Condition	Reference	Effectivity
System Power must be turned OFF. Refer to System Cabinet PDU Main Breaker LOTO Procedure.	-	-

About this task

Procedures for replacing operator control/display hardware in the front magnet enclosure. There are three (3) control panels on the front cover. The three control panels can be removed independently.

Procedure

Insert non ferrous 3mm L-wrench to release hole of panel.

Note:
When removing center panel, do not touch adjuster rod of laser light. If you moved adjuster rod, check or adjust the laser light position after replacement.

Figure 1. Laser Light Adjuster of Center Panel
Push and rotate non ferrous 3mm L-wrench. The panel lock will be released.

Note:
The control panel is connected to connector with behind side.

Figure 2.
For center panel, remove the panel and disconnect the 5 connectors. For R/L panel, remove the panel and disconnect one connector.

Figure 3. Removing Control Panels

Figure 4. Connection Locations
Once the panels are free from the enclosure, detach all the cables from each Control Panel.
Installation is reverse order of removal.

Finalization

Restore Power. Refer to System Cabinet PDU Main Breaker LOTO Procedure.
The J4 connector provides communications for the Emergency Stop. Press the EMO Reset button on the PDU of system cabinet after the power has been returned to the system.
Figure 5. EMO Reset on the PDU
Perform Magnet Enclosure Button Test.
Perform Signal to Noise - Head Scan.