Epson EPL-5500 Service Manual page 109

Troubleshooting
Cause
The interlock switch lever is
bad.
The interlock switch may be
dead.
The PWB-E board may be
dead.
The paper take-up sensor flag
position may be incorrect.
The paper exit sensor flag
position may be incorrect.
The paper take-up sensor
connector may
disconnected.
The paper exit
connector may
disconnected.
The paper exit sensor may be
dead.
The paper take-up sensor may
be dead.
5-8
Step
Does the switch turn on when
1
the case is closed?
Does the
2
(Check with a multimeter.)
With power on, is there an
output of +24 VDC between
3 pin 1 (+) and pin 2 (–) for
CN207
board?
Is the paper take-up sensor
4
flag position OK?
Is the paper exit sensor flag
5
position OK?
Is the paper take-up sensor
be 6 connector disconnected?
sensor Is the
be 7 connector disconnected?
—
8
—
9
Checkpoint Finding
switch toggle?
on C169 MAIN-B
paper exit sensor
EPL-5500 Service Manual
Solution
Replace the interlock
No
lever.
Replace the interlock
No
switch.
Replace the PWB-E
board.
No
Reposition the paper
No
take-up sensor flag.
Reposition the paper
No
exit sensor flag.
Connect it.
Yes
Connect it.
Yes
Replace it.
—
Replace it.
—
Rev. B