• SIGNA™ Hero 3.0T Service Methods
  • 5852800-8EN Revision 1.0
  • Object ID: 00000018WIA30BDC230GYZ
  • Topic ID: id_15667196 Version: 1.8
  • Date: Jul 13, 2021 4:27:37 PM

USB Extender Cables Replacement

Prerequisites

Table 1. Personnel requirements
Required personsPreliminary requirementsProcedureFinalization
1Not Applicable90 minutes15 minutes
Table 2. Tools and test equipment
ItemQuantityEffectivityPart numberManufacturer
Ladder1---
Standard Tool1---
Table 3. Replacement parts
ItemQuantityEffectivityPart numberManufacturer
USB Extender Cable FRU Kit 1-

Refer to FRU Manual

-
Table 4. Safety

About this task

This procedure describes the replacement procedure for two USB extender cables (ISC internal cable(ICE to ISC top) and system cable (GOC to ISC)).

Note: It’s important to replace both cables. Especially root part number of both cable should be the same after the replacement. (e,g. 5725077 and 5725077-2)

Procedure

  1. Perform LOTO for MDP(Main Disconnect Panel) or Facility PDU .
  2. Remove cable duct covers per following steps.
    1. Loosen two bottom screws, remove two screws, and lift up Lower Cable Duct Cover to remove it.
    2. Loosen one top screw, remove one screw, and lift up Upper Cable Duct Cover to remove it.
    Figure 1. Remove cable duct covers
  3. Open clamp and velcro band. Then, disconnect USB cable from ICE.
    Figure 2. USB cable at ICE
  4. Cut tie wraps that is connecting the USB cables in the cable duct.
    Figure 3. Cut tie wraps
  5. Remove two screws and loosen one screw. Then, slide the plate to the left and remove it.
    Figure 4. Plate removal
  6. Remove ISC connector cover by removing 4 screws.
    Figure 5. ISC Top Connector cover
  7. Perform the following steps.
    1. Loosen 4 screws from right Top FAN and remove it.
    2. Flip and put it on the top of the Cabinet.
    Figure 6. Disconnect power
  8. Loosen two screws and remove top plate cover.
    Figure 7. Top plate cover
  9. Remove USB Cable to the front of the cabinet per following steps.
    1. Access USB Cable from the opening of Fan.
      Note: For USB Cable (5725077–2), remove a screw which is connecting the cable clamp to the chassis.
    2. Gradually pull the cable to the front.
    3. Remove the cable to the front.
    Figure 8. USB Cable removal to the front
  10. Restore new USB cable in reverse order of the removal for ISC.
    Note: For USB Cable (5725077–2), fix the cable clamp to the chassis with a screw.
    Figure 9. USB Cable Clamp
  11. Route the USB extender system Cable (E3037) from GOC to ISC and connect it to both Z420 and ISC top cable.
    Note: For time saving, leave the old USB extender system cable as routed on the cable tray. If old cable is left on the tray, bent each ends of the cable, secure them with tie wraps, and put tapes (e.g. packing tape) on each ends with hand writing note as "Don’t use".
    Figure 10. USB System cable connection

Finalization

  1. Restore the Power. Refer to Removing LOTO - MDP.
  2. Confirm that ice_term opens without any failure by referring to Running ice_term.
  3. Perform check scan.