F63; F80; F81 - Philips KV-S5055C Service Manual

Error Code
Classified Code ST1 ST2 ST3 ST4
F63 (Back-side 53
black level error)
F80 (Double Feed 60
Detector
adjustment error)
F81(Ionizer Power 61
Failure)
Possible Cause
00 00 00 1. Pixel data from Optical Unit Back
or image processing circuit
has some problems.
00 00 00 1. Double Feed Detector (G) does
not work, properly.
2. Double Feed Detector (R) does
not work, properly.
xx 00 00 1. Ionizer Power does not work
Check Point
Refer to the above 3rd item on the F62.
Refer to the 5th item on Classified Code U23.
Refer to the 6th item on Classified Code U23.
1. Check the connection between CN1
(Ionizer Board) and
CN1016 (CONTROL Board).
2. Check the following signals.
CN1-1st pin: 12.7 V (during paper-feed)
CN1-3rd pin: Approx. 2 V (during paper-feed)
3. Replace the high voltage power supply in the
Ionizer module.
117
Remarks