1.5T 8 Channel Wrist Array Cable and Post Replacement

Prerequisites

Table 1 Personnel requirements
Required persons	Preliminary requirements	Procedure	Finalization
1	Not Applicable	30 for Cable Replacement; 45 for Post Replacement minutes	Not Applicable

Table 2 Tools and test equipment
Item	Quantity	Effectivity	Part number	Manufacturer
Standard Tool Kit	1	-	-	-
ESD Grounding Wrist Strap	1	-	-	-

Table 3 Replacement parts
Item	Quantity	Effectivity	Part number	Manufacturer
Refer to the FRU document	1	-	-	-

Follow this process to replace field replaceable units on the 1.5T HD 8 Channel Wrist Array by Invivo.

Turn the coil upside down to access the cable assembly.
Remove the 4 screws securing the cable assembly. Make sure to identify which screws are located in each hole as the screw sizes differ.

Figure 1. HD Wrist Array FRU
Use indentation on each side of the part to remove the FRU after removing screws.

Figure 2. Remove The FRU

Figure 3. HD Wrist Array FRU Interior View
Replace the cable assembly with the new one. Make sure to seat the connector firmly once located in place and then reinstall 4 screws.

Figure 4. Wrist Array FRU Replacement

Electrostatic Damage (ESD)
Removing the coil cable and top cover exposes ESD sensitive components.
Use all applicable ESD prevention procedures (including a ESD Grounding Wrist Strap) when handling the coil.

Remove the six cable assembly screws and the cable assembly, then remove the four cover screws and the top cover.

Figure 5. Cable and Cover Removal
Turn the Top Cover over and remove the six top post block screws, then remove the top post block assembly. Replace the parts as shown below as needed.

Figure 6. Top Post Block Disassembly
Remove the four side post block assembly screws (see Figure 5). Replace the parts as shown below as needed.

Figure 7. Top Post Block Disassembly
Reassemble the coil using the steps above.

For Cable Replacement: Perform an MCQA test as explained in the 1.5T 8 Channel Wrist Array MCQA Test Setup document.

For Post Replacement: Attach coil to baseplate to ensure proper part installation.