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Table 5-8. The LED Does Not Come On (2)
Cause Step Checkpoint Finding Solution
The paper take-up solenoid
coil may be open or shorted.
1
Disconnect connector CN203
on the C169 MAIN-B Board
and check the coil resistance
between pin 5 and pin 6 on
the dis- connected cable side
of the connector, using a
multimeter.
Is the resistance
approximately 80 ohms?
No
Replace the paper
take-up solenoid.
If the coil is shorted, check the
solenoid drive circuit using the
procedure below:
1. Set the multimeter for
voltage.
2. Place the (–) terminal of
the multimeter on pin 5
of connector CN207 on
the C169 MAIN-B Board.
3. Place the (+) terminal of
the multimeter on pin 6
(GND).
With power on, does the
multimeter detect any current?
Yes
Replace the paper
take-up solenoid and
the C169 MAIN-B
Board.
Continued on next page
EPL-5500 Service Manual Troubleshooting
Rev. B 5-9