6.1 Respond to and Restore a Locked-Up Video Terminal
OVERVIEW
This procedure restores a video terminal at a DRM site that is not responding to
keystrokes. For this procedure, personnel need a good understanding of terminal
configurations and should know how to use the MCC video terminal to locate the
display page(s) that can be helpful in restoring the locked-up video terminal.
For Sun
1
and MCC console terminal settings, see “Sun Console/Master Control Center
(MCC) Terminal Settings,” Appendix A1.
PROCEDURE
1. Determine if this is the only terminal not responding to keystrokes.
If this is the only terminal that is locked-up, go to step 4.
If all terminals are failing to respond, continue with step 2.
2. Can the EAI page be displayed on the MCC terminal?
If all terminals are locked-up but the EAI page can be displayed on the MCC, go
to step 8.
If all terminals including the MCC are locked-up, continue with step 3.
3. Verify the MCC terminal option settings (see “Sun Console/Master Control
Center (MCC) Terminal Settings,” Appendix A1).
4. Identify the locked up terminal’s Teletypewriter (TTY) member number. In this
procedure the TTY member number and the video terminal number are
synonymous. The video terminal number is probably at the top of the status
indicator on the MCC or the STLWS.
5. Locate another operational video terminal that is assigned to the same switch as
the locked-up video terminal.
6. At the operational video terminal, enter either (a) or (b) to restore the faulty
video terminal to service. If the terminal to be restored is the MCC, enter (b),
otherwise enter (a).
(a) RST:TTY=a[,UCL];
(b) RST:MTTY=a[,UCL];
Where: a = TTY member number (0-255).
Response: A PF entry (on the same line as the input message), followed by
a RST TTY output message.
7. Does the RST TTY output message and video terminal being restored indicate
restoration? (For example, the RST TTY output message contains the TTY
member number (0-255), followed by COMPLETED.) The restored video terminal
should display a CFTSHL TERMINAL IN SERVICE message.
If these two conditions do not exist, go to Step 5.
If these two conditions do exist, STOP. YOU HAVE COMPLETED THIS
PROCEDURE.
1. Trademark of Sun Microsystems, Inc.
235-200-150
January 2003
CORRECTIVE MAINTENANCE
Procedure 6.1
Issue 3.00 Page 6.1-1
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