Specifications

SQ: 1-11
RS3: Service Quick Reference Guide
Troubleshooting
Console Power-Up Diagnostics
When power is applied to a console, the console is put through a series of
comprehensive tests to verify console card operation.
If a failure occurs on any one of the console cards, the word “PASSED” is
replaced with “FAILED” or “MISSING”. The console will then finish the
power-up tests, and an alarm at the bottom of the screen will indicate
“CRITICAL FAULTY OR MISSING”. If any card is indicated as missing, the
card has failed to the point that it cannot be detected in the card cage and
the console will not run. If a card indicates “FAILED”, the test that failed will
be backlit in red and the console may still be able to run, depending on the
fault of the card. Pressing [ACK] on the Loop Control Panel or the red
[ALARM ACK] button on the Operator Keyboard will attempt the system
boot. Before pressing [ACK], note w hich card and the specific test that
failed for future reference.
NOTE: For the Enhanced Engineering Keyboard (1984--1654--000x):
The r ed ACK key is not recognized until the console has finished booting.
Press the “A” key or “F10” to acknowledge the alarm.
Console Power-Up Tests
Item
Test Definition
Console Bus/Interrupt Test This is a test of the processor card ability to
talk to the other cards on an interrupt level. A
failure here could indicate that the processor
card is bad or one of the other cards in the
console could be affecting the test. The power
should be turned off to the console and all
cards but the power supply and processor
removed. The front panel keyboard cable
should also be removed. The console should
again be turned on and, after 30 seconds, the
green LED on the processor card s hould turn
on, indicating the card passed all tests. The
rest of the cards should then be added one by
one until the fault again appears and that card
should be replaced.
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