Position the System Unit Power switch to
Orf
for
five
seconds,
then power the System Unit on. Check for the voltage at
P20-4
to
decrease from 2.0-5.5 Vdc to 0-0.8 Vdc when the
LED
is
on.
•
DID THE VOLTAGE
AT
P20-4 DECREASE FROM
2.0-5.5 Vdc TO 0-0.8 Vdc?
NO Replace the Logic Printed Circuit Board. See
Section 3, "Removal/Replacement."
YES
600-23
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