• SIGNA™ Hero 3.0T Service Methods
  • 5852800-8EN Revision 1.0
  • Object ID: 00000018WIA30234660GYZ
  • Topic ID: id_2032051 Version: 1.29
  • Date: Oct 27, 2021 1:23:57 PM

IRD troubleshooting

Diagnose and fix issues with the 12.1 inch IRD screen.

Topic ID: id_SL15441588-1330035

FRU components for this troubleshooting

The following are main components around IRD

Table 1. Component around IRD
DescriptionFRU Number
MR Compatible 12.1 inch In Room Display8771126-61
Run P5006 Cable Harness, GOC to IRD Fiber Optic
  • FRU, USB-AOC optic fiber cable, Host PC USB3.0 port to IRD-Right-J3, Run# P2027 48000 mm, GEN2
  • FRU, USB-AOC optic fiber cable, Host PC USB3.0 port to IRD-Left-J3, Run# P2029 48000 mm, GEN2
  • DP AOC, GOC DP Dongle to IRD Right DP, Run P2026 48000 mm
  • DP AOC, GOC DP Dongle to IRD Left DP, Run P2028 48000 mm
5875244

  • 5778287-8
  • 5778287-9
  • 5879076
  • 5879076-2
IRD DCPS6859114-2
Dell T5820 MR Global Host W-2123 64GB Nvidia SSD8780011-02
NEC P242W 24in LCD Monitor5430786-2
Main Monitor Mini DP to DP Cable5795593
Mini DP to DP Dongle for port 15851077-2
Mini DP to DP Dongle for port 25851077-3
Topic ID: id_SL14161332-1330035

Block Diagram

The following block diagram is used in the theory of troubleshooting throughout this document.

Figure 1. IRD Block Diagram
Topic ID: id_SL3424492-1330035

Troubleshooting steps

Note: At any point during the troubleshooting, if the DP AOC cables are connected to any other open mini DP port, re-install IRM software to ensure that the IRDs are functional.

Make sure the IRDs have power

If there is no power, confirm M3314 connections to ISC PW/PEN > PHPS2 > J42 and ISC PW Filter > J143.

For systems with Remote (off the wall) siting configuration:

  1. Confirm E3314 connections to ISC PW/PEN > J42 and ISC > Cabinet IF > J42.
  2. Confirm E3302 connections to ISC PW/PEN > J40 and ISC > Cabinet IF > J40.

Replace cables if necessary.

Note: The 14V output from the PHPS supplies the IRD display back light. The 8V output from the DCPS supplies the IRD touch circuitry and IRD display

Make sure the fiber optic cables are connected

Make sure the USB fiber optic cables P5006 are properly connected to the correct USB 3.1 ports on the GOC. Refer to Figure 1 for more information.

Make sure the connections are clean

  1. Disconnect the PHPS power, DP, and USB 3.0 cables from the IRD(s).
  2. Check the connectors for debris or damage and clean or replace if required.
  3. Reconnect the cables.
Figure 2. Installed In-Room Display (IRD)
1USB cable
2DP cable
3Power cable
4Tie wraps
5Lanyard

Make sure the IRDs are connected to the host PC

Make sure that two displays and two mouse devices are detected by the Host PC.

If necessary, re-install IRM software to resolve problem. See Figure 7.

Resolve issue if one of the IRDs does not work

Note: When troubleshooting, connect cables from GOC to IRD before routing the cables to ensure that IRD is functional. Route cables once IRD functionality is confirmed.
  1. Re-install the IRM software and check if the issue is resolved. See Figure 7.
  2. Swap the malfunctioning IRD and working IRD.

    Follow these procedures to remove the control panel covers:

    Figure 3. Swap IRD

    Swap the right and left IRD.

    If the same IRD is malfunctioning, then replace the IRD. Follow the instructions in Replacing the In-Room Display (IRD).

  3. If the problem moves to the other IRD, there may be a problem with the cables or the GOC port.
    1. Go to the GOC and confirm the cables are properly seated and connected as described in the block diagram. If no issues are found go to the next step.
    2. For touch related issues, swap the USB cable connections on the GOC ports.
      • If the problem stays on the same IRD, replace the USB cable.
      • If the problem moves to the other side IRD, there could be a problem with the GOC port.
        1. Move the USB connections back to the default ports. Reboot the Host PC to see if that resolves the issue.
        2. If problem is not resolved, connect the USB cable to an open USB port. Reboot the Host PC to see if that resolves the issue.
        3. If no open USB ports are available or if the problem is not resolved by rebooting the Host PC, replace the Host PC.
      Figure 4. Swap USB Cable on Equipment Room side to troubleshoot touch screen

      Swap the USB cables at the USB ports of the host PC. A hot swap is permitted.

    3. For display related issues, swap the mini DP cable connections on the GOC ports including the dongle.
      Important: Handle the cables carefully, the fiber optic cables are easily damaged and have a minimum bend radius of 50 mm.
      • If the problem stays on the same IRD, swap the Mini DP to DP Dongle for port 1 (5851077-2 ) with the Mini DP to DP Dongle for port 2 (5851077-3) to check if the issue is with the dongle.

        If the problem stays on the same IRD, replace the cable. Otherwise replace the Mini DP to DP Dongle.

      • If the problem moves to the other side IRD, there could be a problem with the GOC port.
        1. Move the DP connections back to the default ports. Re-install the IRM software to see if that resolves the issue. See Figure 7.
        2. If the problem is not resolved, connect the DP cable from the malfunctioning mini DP port to one of the open mini DP ports. Re-install the IRM software to see if that resolves the issue.
        3. If the problem is not resolved by connecting to an open mini DP port or by re-installing the IRM software, replace the Host PC.
        Figure 5. Swap DP Cable on Equipment Room side to troubleshoot display

        Swap the DP cables. A hot swap is permitted if you are reusing earlier ports.

        Note: If cables are moved to new ports, you must reinstall the IRM software. See Figure 7.

Resolve “No signal” message

If both IRDs display No signal, determine if the system has been idle for more than 2 hours. The IRDs can lock due to noise exposure on the video line. When this happens, do the following to power cycle the IRD monitor.

  1. Press the E-stop button on the SCIM.
  2. Press the green EMO RESET on the PDU.
Note: Damaged fiber optic cables can expose the IRD monitor to prolonged levels of video noise causing IRD monitor to enter a locked state, present in paths of both left and right IRD monitors. The cables consist of a single fiber with DP converters at each end, one fiber each for left and right IRD monitors. Make sure ESD protective shipping cover is affixed and secured over the HDMI converter.

Finalization

  1. If you removed covers, reinstall them:
  2. Make sure all system interconnects are returned to normal configurations.
  3. Run the Check scan.
Topic ID: id_SL14973383-1330035

Reference : Backmatter of IRD Troubleshooting

Figure 6. Swap Video Cable between Graphic Cards

Swap the video cable between the graphic cards. A hot swap is permitted.

Figure 7. Reinstall IRM

Open Guided Install, select IRM Installation, and then click Install IRM Software to install IRM software.

Enter “debugPrintCabmon” in ICE Term

Refer to Running ice_term to open ice_term window.

Enter debugPrintCabmonStatus.

Figure 8. Check IRM 8V fault flag
Figure 9. Enter “lsusb” and confirm the result
Figure 10. SRI 14V

Check SRI14V on PHPS Front Panel is in spec. (Spec: 13.3~14.7VDC)

Figure 11. Recycle the PC Power