IBM 6644 Personal Computer User Manual


 
Check Procedures 35
- If an error or other symptom is displayed, go to
“Index of Symptoms, Messages, Error Codes, or
Beeps” on page 36.
- If no error can be detected or the symptom is in-
termittent, go to “Undetermined Problems” on
page 72.
End
009 -
If the last test stops and you cannot continue, first
make sure all switches, power connectors, cables,
and jumpers are set correctly and show the correct
voltages and continuity.
Take note of any messages, error codes, beeps, or
new symptoms. Go to “Index of Symptoms,
Messages, Error Codes, or Beeps” on page 36.
If there is no error symptom or the error symptom
is intermittent, go to “Undetermined Problems” on
page 72.