Chapter: 3. User Maintenance
Symptom Cause Remedy
Status screen diagnosis
Main voltages out of range
• + 5 V: <> 4.50 - 5.00 V
• + 12 V: <> 11.00 - 12.00 V
• Inv 12 V: <> 11.00 - 12.00 V
• Defective power
supply.
• Power supply overload.
• Replace terminal board.
• +5 V: Computer or I/O board problem.
• +12 V: Transceiver problem.
• Lost bottom, transceiver (XCVR) voltage
low.
• Power setting too low. • Increase power setting.
• Lost bottom, transceiver (XCVR) voltage
<10 V when power is 50 % or 100 %.
• Defective I/O card. • Replace I/O card, possibly terminal board.
• System reboots intermittently. • Bus cable or
motherboard error.
• Temporary x maybe to clean and reseat the
motherboard connectors.
• Replace cable and/or card.
The other information on the status screen is a collection of information which may be observed and
manipulated with the various screen soft key selections. As a reference, it will often be more convenient to
observe the various settings together on this screen than to cycle from screen to screen to check on the soft
key texts.
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