IBM System 9000 Troubleshooting And Servicing page 17

Benchtop computer
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To power ON :
Set the Onl ine/ O f f l ine/Form Set switch on the keypad to O f f l ine .
Set the Power switch on the computer to ON .
Now observe these events l isted . If any event (or events) do not occur,
use this chart to determine what procedure to fo l low to correct the
prob lem. Use the number at the bottom of each column in the Symptom chart
to
reference
the Cause/So lution .
Cause/So lution may be either one . The order of the caus e/solution numbers
does
not
s ignify
caus e/solut ion is shown , the one ( s ) that are eas iest to perform should
be done first .
Where necessary,
sect ions o f the manual to narrow the fault to one CRU .
SYMPTOM ( S )
Fans f a i l t o start
"Beep" is not heard
Power. LED fai l s to l ight
Online LED fails to l i ght
P r inter does
not left
j ustify
"Beep" does not stop
Online LED does not go out
Keypad LEDs do not f l ash
CRT fails to display results!
o f automatic test ing
Quick "beep" not heard
Printer does not left
jus t i fy
Test Complete LED fails
to l ight
CRT does not f lash RAM s ize
CRT fails to display
operating system label
When two numbers
an
order
o f
probab i l ity .
refer
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