1.5T Express Coil: 16E Head Neck Array Coil Cable Replacement

Prerequisites

Table 1. Personnel requirements
Required persons	Preliminary requirements	Procedure	Finalization
1	0 minutes	40 minutes	0 minutes

Table 2. Tools and test equipment
Item	Quantity	Effectivity	Part number	Manufacturer
Standard tool kit - Flathead screwdriver, 10 in-lbs torque driver, 15in-lbs torque driver, Spanner and pliers	1	-	-	-

Table 3. Safety

Notice

Observe Anti-Static Precautions.

Follow this process to change the system cable for coils that have a cable available as a spare part.

Notice

Wear the static electricity prevention wrist band when accessing the cables below cradle not to damage the electronics module.
Unscrew the bottom cover and remove from coil. Retain the original screws used.
Unscrew the cable clamp nut from the coil as shown in Figure 1.

Figure 1. Removing the Cable Clamp
Identify the I board Assembly and the Coil ID PCB on the Head Neck Unit HNU Only. See Figure 2.

Figure 2. Mux Board and Coil ID PCB Locations
Identify the RF GANGED Connectors (J1, J2) and DC Connectors Pins (10V and Gnd on I Board and J7, J9 on Coil ID Board). See Figure 2.
Remove all RF connectors (J1, J2) from I Board. See Figure 2.
Remove DC connectors: 10V and GND from I Board and J7, J9 from Coil ID PCB. See Figure 2.
Remove the system cable (without the coil id).
Install the new system cable.
Align the cable into the notch of former slot.
Connect RF connectors (J1 and J2) to Mux Board. Verify that all labels on the connectors match those on the I Board. See Figure 2.
Connect DC connectors (10V & GND) to I Board and J7 and J9 to coil ID PCB. Verify that all labels on the connectors match those on the Mux Board and Coil ID Board. See Illustration 2.
Replace cover. Use original screws to fasten cover.