MIC with cable Replacement

Prerequisites

Table 1. Personnel requirements
Required persons	Preliminary requirements	Procedure	Finalization
1	Not Applicable	60 minutes	Not Applicable

Table 2. Tools and test equipment
Item	Quantity	Effectivity	Part number	Manufacturer
Non Magnetic Tool Set	1	-	-	-

Table 3. Replacement parts
Item	Quantity	Effectivity	Part number	Manufacturer
MIC with cable (Refer to Illustrated Parts)	1	-	-	-

Table 4. Safety

DANGER

STRONG MAGNETIC FIELD!

FERROUS MATERIALS CAN BECOME DANGEROUS PROJECTILES IN THE PRESENCE OF THE MAGNETIC FIELD PRODUCED BY THE SIGNA MAGNET.

Do not Bring any ferromagnetic tools or equipment into the magnet room.

Warning

ELECTROCUTION HAZARD!

DANGEROUS VOLTAGES ARE PRESENT AROUND THE MAGNET SUBSYSTEM WHEN ENERGIZED.

LOCK AND TAG OUT POWER TO THE magnet room BEFORE STARTING WORK.

Table 5. Required conditions
Condition	Reference	Effectivity
Move the LPCA to rear pedestal with IN button of magnet front panel. Then, Separate LPCA from cradle.	-	-
System Power must be turned OFF. Refer to Lockout / Tagout for System Cabinet PDU Main Breaker.	-	-

Remove the Cable and track assy. Move it to the open space.(Outside of Magnet Room) Refer to Cable and Track Assy Replacement .
Remove all the plastic stoppers from track assy.
Remove the two Track End Part from Track Assy.

Figure 1. Two Track End Parts
Cut tie wraps from the each end of track assy.

Figure 2. Cut tie wraps
Remove MIC cable from cable and track assy.
Restore new MIC cable from MIC side.
Restore Cable and Track Assy by the reverse order of the removal.

Note:
Fix the MIC cable length at 160 mm from tie-wrap point.

Figure 3. MIC cable length of LPCA side

Note:
Connect the LED cable so that the cable is centered to the LED itself.

Figure 4.

Restore the Power. Refer to Lockout / Tagout for System Cabinet PDU Main Breaker.
Check intercom function. Basically, intercom adjustment of GOC Audio Box is not required. If necessary, perform Intercom Adjustment for GOC Audio Box as troubleshooting.
Perform MCR test.
Perform Signal to Noise - Head Scan.