• SIGNA MR355 / SIGNA MR360
  • Service Manual
  • 5856356-3EN Revision 5.0
  • Basic Service Documentation. Copyright General Electric Company.
  • Object ID: 00000018WIA30ADFF20GYZ
  • Topic ID: id_13107296 Version: 1.1
  • Date: Jul 6, 2019 12:03:29 AM

Encoder Box

Prerequisites

Table 1. Personnel requirements
Required personsPreliminary requirementsProcedureFinalization
1Not Applicable60 minutesNot Applicable
Table 2. Tools and test equipment
ItemQuantityEffectivityPart numberManufacturer
Non Magnetic Tool Set1---
Table 3. Replacement parts
ItemQuantityEffectivityPart numberManufacturer
Encoder Box (Refer to Illustrated Parts)1---
Table 4. Safety
Table 5. Required conditions
ConditionReferenceEffectivity

System Power must be turned OFF. Refer to System Cabinet PDU Main Breaker LOTO Procedure.

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Procedure

  1. Remove Rear Pedestal left cover. Refer to Cover Removal
  2. Disconnect J3 and J4 connectors from Encoder Box.
  3. Loosen the hexagon socket set screw which fixes the sensor and remove sensor.
    Figure 1. Sensor Removal
  4. Remove Encoder Box by removing 2 screws.
  5. Restore it by the reverse order of the removal.

Finalization

  1. Restore the Power. Refer to System Cabinet PDU Main Breaker LOTO Procedure.
  2. Perform Longitudinal Drive Calibration.
  3. Perform DQA Tool to adjust Isocenter Z.
  4. Perform Signal to Noise - Head Scan.