112 lines
3.8 KiB
Plaintext
112 lines
3.8 KiB
Plaintext
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AST RESEARCH TECHNICAL BULLETIN TB-0172 4-24-86
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AST-5251/11 TROUBLESHOOTING
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The intent of this Technical Bulletin is to help the user of AST-
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5251/11 troubleshoot situations that may arise at installation
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time. It is assumed that the user has read all manuals supplied
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by AST for the installation procedure, and is familiar with all
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terminology contained within.
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The following are the most common symptoms that may occur when
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initially installing the AST-5251/11:
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While using AST-5251/11, if you encounter:
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KERNEL error code 1 or 3:
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-Try reseating the board.
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-Error code 3 with possible I/O address conflict.
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Select another I/O address on AST board.
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KERNEL error code 2 or 4:
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-Indicates an interrupt or DMA conflict. Reconfigure
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our board to use a different interrupt or DMA channel.
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While using AST-5251/11, if you encounter:
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Successful execution of KERNEL and APS, but no sign-on screen
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is displayed:
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*If SA indicator is "not" in reverse video:
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-Make sure only the last terminal on the line is
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terminated.
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-Be sure that the model terminal which the AST board is
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emulating, is one that AST supports, and the software
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is configured to reflect that on both the PC side and
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the SYS. 3X side.
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-Check the system console for any messages that have
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been generated and need to be responded to.
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-Check cabling, both the twinax stub cable which AST
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provides and long twinax cable that is connected to
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SYS. 3X.
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*If SA indicator "is" in reverse video:
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-Verify that the address number, in the lower right-
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hand side of the screen, is the same station address
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number that is in the host configuration.
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*If SA indicator is blinking:
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-Verify that you are not having a station address
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conflict with another terminal.
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GENERAL TROUBLESHOOTING
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If you are experiencing problems, try the following:
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1. Take all extra cards out of PC (e.g. other emulation
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cards, network cards, etc.) and set the AST board to
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factory configuration. If emulation comes up okay, then
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add the other boards in one at a time.
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2. See if the same symptom occurs in another PC.
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3. Move the PC to a different location to determine if the
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problem follows the location or the PC.
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4. Move the PC so that it is the first terminal on the line
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and terminate it, then see if the problem still exists.
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5. If you change any of the jumpers on the board, be sure
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to modify the software to reflect those alterations.
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6. If you are getting an error on KERNEL, remove the twinax
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stub cable from the back of the board, and then run
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KERNEL.
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If you are still encountering problems and need to contact
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Technical Support for assistance, please have the following
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information available:
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Type of PC (PC, XT, AT, or compatible)
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Version of DOS
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Total memory in PC
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Other cards that are in the PC
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Version of AST emulation software
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Host computer
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Release of host software
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Station address of display
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Station address of printer
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Specific configuration of line (other terminals and
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their station address)
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