TWSIP01

Please read the danger notices in Twinaxial workstation I/O processor isolation procedure before performing this procedure.

One of the following occurred:

• All of the workstations on one port are not working.
• All of the workstations on the system are not working.
• One of the workstations on the system is not working.
• The reference code table instructed you to perform this procedure.
• The Remote Operations Console is not working.

1. If the system has logical partitions, perform this procedure from the logical partition that reported the problem. To determine if the system has logical partitions, go to Determining if the system has logical partitions before continuing with this procedure.
2. Are you using a workstation adapter console?
   Note:
   A personal computer (used as a console) that is attached to the system by using a console cable feature is known as a workstation adapter console. The cable (part number 46G0450, 46G0479, or 44H7504) connects the system port on the personal computer to a communications I/O adapter on the system.
   • No: Continue with the next step.
   • Yes: Go to WSAIP01. This ends the procedure.
3. Is the device you are attempting to repair a personal computer (PC)?
   • No: Continue with the next step.
   • Yes: PC emulation programs operate and report system-to-PC communications problems differently. See the PC emulation information for details on error identification. Then, continue with the next step.
4. Perform the following steps:
   1. Verify that all the devices you are attempting to repair, the primary console, and any alternative consoles are powered on.
   2. Verify that the all the devices you are attempting to repair, the primary console, and any alternative consoles have an available status. For more information on displaying the device status, see Hardware Service Manager.
   3. Verify that the workstation addresses of all workstations on the failing port are correct. Each workstation on the port must have a separate address, from 0 through 6. See the workstation service information for details on how to check addresses.
   4. Verify that the last workstation on the failing port is terminated. All other workstations on that port must not be terminated.
   5. Ensure that the cables that are attached to the device or devices are tight and are not visibly damaged.
   6. If there were any cable changes, check them carefully.
   7. If all of the workstations on the system are not working, disconnect them by terminating at the console.
   8. Verify the device operation (see the device information for instructions).
   9. The cursor position can assist in problem analysis.
      • If the cursor is in the upper right corner, it indicates a communication problem between the workstation IOP and the device. Continue with the next step.
      • If the cursor is in the upper left corner, it indicates a communication problem between the workstation IOP and the operating system. Perform the following steps:
        1. Verify that all current PTFs are loaded.
        2. Ask your next level of support for assistance. This ends the procedure.
5. Is the system powered off?
   • Yes: Continue with the next step.
   • No: Go to step 8.
6. Perform the following:
   1. Power on the system in Manual mode. See IPL type, mode, and speed options for details.
   2. Wait for a display to appear on the console or a reference code to appear on the control panel.

   Does a display appear on the console?

   • No: Continue with the next step.
   • Yes: If you disconnected any devices after the console in step 4, perform the following:
     1. Power off the system.
     2. Reconnect one device.
        Note:
        Ensure that you terminate the device you just reconnected and remove the termination from the device previously terminated.
     3. Power on the system.
     4. If a reference code appears on the control panel, go to step 9.
     5. If no reference code appears, repeat steps a through d of this step until you have checked all devices disconnected previously.
     6. Continue to perform the initial program load (IPL). This ends the procedure.
7. Does the same reference code that sent you to this procedure appear on the control panel?
   • Yes: Continue with the next step.
   • No: Perform problem analysis for this new problem. This ends the procedure.
8. Perform the following to make DST available:
   1. Ensure that Manual mode on the control panel is selected.
   2. Select function 21 Make DST Available.
   3. Check the console and any alternative consoles for a display.

   Does a display appear on any of the console displays?

   • No: Continue with the next step.
   • Yes: If you disconnected any devices after the console in step 4, perform the following:
     1. Power off the system.
     2. Reconnect one device.
        Note:
        Ensure that you terminate the device you just reconnected and remove the termination from the previously terminated device.
     3. Power on the system.
     4. If a reference code appears on the control panel or on the HMC, go to step 9.
     5. If no reference code, repeat steps a through d of this step until you have checked all devices disconnected previously.
     6. Continue to perform the initial program load (IPL). This ends the procedure.
9. Ensure that the following conditions are met:
   • The workstation addresses of all workstations on the failing port must be correct.

     Each workstation on the port must have a separate address, from 0 through 6. See the workstation service information if you need help with checking addresses.

   Did you find a problem with any of the above conditions?

   • Yes: Continue with the next step.
   • No: Go to step 11.
10. Perform the following:
    1. Correct the problem.
    2. Select function 21 Make DST Available.
    3. Check the console and any alternative consoles for a display.

    Does a display appear on any of the consoles?

    • Yes: Continue to perform the IPL. This ends the procedure.
    • No: Does the same reference code appear on the control panel?
      • Yes: Continue with the next step.
      • No: Perform problem analysis for this new problem. This ends the procedure.
11. Is the reference code one of the following: 0001, 0003, 0004, 0005, 0006, 0101, 0103, 0104, 0105, 0106, 5004, 5082, B000, D010, or D023?
    • No: Continue with the next step.
    • Yes: Go to step 15.
12. Does the system have an alternative console on a second workstation IOP?
    • Yes: Continue with the next step.
    • No: Go to step 14.
13. There is either a Licensed Internal Code problem, or there are two device failures on the workstation IOPs, consoles, or cables. The console and any alternative consoles are the most probable causes for this failure.
    • See the service information for the failing display to attempt to correct the problem. If a display is connected to the system by a link protocol converter, use the link protocol converter information to attempt to correct the problem. The link protocol converter may be the failing item.
    • If you have another working display, you can exchange the console and alternative consoles and perform an IPL to attempt to correct the problem.
    • Exchange the following parts one at a time until you determine the failing item:
      1. Console
      2. Alternative console
      3. Cables
      4. Workstation IOA for the console
      5. The multi-adapter bridge. This ends the procedure.
14. The console, cables, or the workstation IOP card is the most probable causes for this failure. If the console is connected to the system by a link protocol converter, the link protocol converter is possibly the failing item. Use one or more of the following options to correct the problem:
    1. See the service information for the failing displays for more information. If a display is connected to the system by a link protocol converter, see the link protocol converter information to attempt to correct the problem.
    2. If you have another working display, you can exchange the console and perform an IPL to attempt to correct the problem.
    3. Exchange the following parts one at a time until you determine the failing item:
       1. Console
       2. Workstation IOA
       3. The multi-adapter bridge.
       4. Twinaxial attachment (cable) This ends the procedure.
15. To continue problem analysis, use a port tester, part 93X2040 or 59X4262, which you may have with your tools or the customer may have one. The port tester has either two or three lights.

    Is a port tester available?

    • Yes: Continue with the next step.
    • No: Check or exchange the cables from the system to the failing display. Did this correct the problem?
      • Yes: You corrected the problem. This ends the procedure.
      • No: Go to step 12.
16. To use the port tester to isolate the problem, perform the following:
    • Verify that the port tester is operating correctly by doing a self-test. A self-test can be made at any time, even when the port tester is attached to a port or cable. Perform the following steps to do a self-test:
      1. Move the selector switch to the center (0) position.
      2. Push and hold the test button until all lights go on. The yellow lights should go on immediately, and the green light should go on approximately 5 seconds later. The port tester is ready for use if all lights go on.
    • Leave the system power on.
17. Find the input cable to the failing console or port.

    Is the failing console or the failing port attached to a protocol converter?

    • No: Perform the following:
      1. Disconnect the input cable from the failing console.
      2. Connect the port tester to the input cable.
      3. Continue with the next step.
    • Yes: Perform the following:
      1. Disconnect the cable that comes from the system at the protocol converter.
      2. Connect the port tester to the cable.
      3. Continue with the next step.
18. Perform the following:
    1. Set the selector switch on the port tester to the left (1) position for a twinaxial connection. Set the switch to the right (2) position for a twisted pair connection.
    2. Press and hold the test switch on the port tester for 15 seconds and observe the lights.
    3. Choose from the following options:
       • If the port tester has three lights, do the following:
         • If only the top (green) light is on, go to step 27.
         • If both the top (green) and center (yellow) lights are on, go to step 20.
           Note:
           The center (yellow) light is always on for twisted pair cable and may be on for fiber optical cable.
         • If only the bottom (yellow) light is on, go to step 21.
         • If all lights are off, go to step 22.
         • If all lights are on, go to step 19.
       • If the port tester has two lights, do the following:
         • If only the top (green) light is on, go to step 27.
         • If only the bottom (yellow) light is on, go to step 21.
         • If both lights are off, go to step 22.
         • If both lights are on, continue with the next step.
19. The tester is in the self-test mode. Check the position of the selector switch.
    • If the selector switch is not in the correct position, go to step 18.
    • If the selector switch is already in the correct position, the port tester is not working correctly. Exchange the port tester, and go to step 16.
20. The cable you are testing has an open shield.
    Note:
    The open shield can be checked only on the cable from the twinaxial workstation attachment to the device or from device to device. Only one section of cable can be checked at a time. See the SA41-3136, Port Tester Use information.
    This ends the procedure.
21. The cable network is bad. The wires in the cable between the console and the twinaxial workstation attachment are reversed. Go to step 26.
22. Perform the following:
    1. Find the twinaxial workstation attachment to which the failing console is attached.
    2. Disconnect the cable from port 0 on that twinaxial workstation attachment.
    3. Connect the port tester to port 0 on the attachment.
    4. Set the selector switch on the port tester to the left (1) position.
23. Perform the following:
    1. Press and hold the test switch on the port tester for 15 seconds and observe the lights.
    2. If the port tester has three lights, do the following:
       • If both the top (green) and center (yellow) lights are on, continue with step 24.
         Note:
         The center (yellow) light is always on for twisted pair cable and may be on for fiber optical cable.
       • If only the bottom (yellow) light is on, continue with step 24.
       • If all lights are off, continue with step 24.
       • If only the top (green) light is on, go to step 26.
       • If all lights are on, go to step 25.
    3. If the port tester has two lights, do the following:
    • If only the top (green) light is on, go to step 26.
    • If only the bottom (yellow) light is on, continue with step 24.
    • If both lights are off, continue with step 24.
    • If both lights are on, go to step 25.
24. The test indicated that there was no signal from the system. Reconnect the cable you disconnected and perform the following:
    1. Exchange the following parts:
       1. Twinaxial workstation IOA card
       2. The multi-adapter bridge.
    2. Power on the system to perform an IPL. This ends the procedure.
25. The tester is in the self-test mode. Check the position of the selector switch:
    • If the selector switch is not in the left (1) position, set the switch to the left (1) position. Then go to step 23.
    • If the selector switch is already in the left (1) position, the port tester is not working correctly. Exchange the port tester and go to step 22.
26. The cable to the workstation is the failing item. Cable maintenance is a customer responsibility. The cable must be repaired or exchanged. Then, power on the system to perform an IPL. This ends the procedure.
27. The port tester detects most problems, but it does not always detect an intermittent problem or some cable impedance problems. The tester may indicate a good condition, although there is a problem with the workstation IOP card or cables.
    1. If the failing display is connected to a link protocol converter, the link protocol converter is the failing item. See the link protocol converter service information to correct the problem.
    2. Exchange the following parts:
       1. Console
       2. Twinaxial workstation IOA
       3. The multi-adapter bridge.
       4. Cables
    3. If you have another working display, you can exchange the console and perform an IPL to attempt to correct the problem. See the service information for the failing display for more information.
    4. If exchanging the failing items did not correct the problem and the reference code was a 5002, 5082, or 50FF, there may be a Licensed Internal Code problem. Go to LICIP03.
    5. The problem may be caused by devices that are attached after the console on port 0. This ends the procedure.