Kyocera ECOSYS P3060dn Service Manual page 273

Problem
(4) The tray is not Defective elevation motor.
descended even
Defective tray bottom posi-
though the tray cover
tion sensor.
is opened.
Defective main PWB.
Causes/check procedures
Start
Wire between
paper and tray elevation
motor is in good status?
(no damage coating, or
no connector loosen,
etc?)
Yes
Pin 3 of YC7 = 0 V?
Yes
Pin 3 of YC2 = 3.3 V?
Yes
Is pin 1 of YC4 with
the cover opened 24 V
, and pin 2 = 0 V? (with
the tray be possible to
be descended)
Yes
Replace tray elevation motor.
Replace wire between main
PWB and tray elevation motor.
Corrective measures
Follow the flow chart below.
No
Replace or repair wire.
Repair or replace belt of tray
elevation motor or driving part.
No
Replace tray bottom position
sensor, or repair/replace the
actuator.
Replace main PWB.
No
No
Pin 2 of YC6 = 0 V?
Yes
No
Replace main PWB.
Replace engine PWB of the
printer.
Replace wire between printer
engine PWB and printer base.
Replace wire between printer
1-3-7
Replace tray bottom position
sensor, or repair/replace the
actuator.
Repair or replace wire between
main PWB and tray bottom
position sensor.
No
Pin 1 of YC1 = 5 V?
Yes
Replace main PWB.
3S3