Canon iR8500 Service Manual page 405

CHAPTER 6 TROUBLESHOOTING
<Step>
1
2
3
When checking the voltage using a meter, you may encounter an expression like the fol-
lowing: "Measure the voltage between J109-1 (+) and -2 (−) on the DC controller PCB,"
the symbol (+) indicating the positive probe of the meter, while the symbol (−)
indicatingthe negative probe of the meter.
In the case of the example, you are expected to connect the positive probe to J109-1 and
the negative probe to J109-2.
6-2
<Checks>
Is the power
plug connected
to the power
outlet?
YES
Are the
front covers and
covers closed
properly?
YES
Is the rated
voltage present
at the power
outlet?
YES
Rest omitted.
F06-100-01
COPYRIGHT© 2001 CANON INC.
<Results>
NO
NO
NO
2000 2000 2000 2000 CANON iR8500/7200 REV.1 AUG. 2001
<Action>
Connect the
plug.
Close the
covers.
The problem
is not of the
copier's.
Advise the user.