BUS Updated 12/2011
07/2011
2-820
WorkCentre 5335 Family Service Documentation
078-300, 078-301
Initial Issue
Status Indicator RAPs
078-300 HCF Top Cover Interlock Open RAP
BSD-ON:
BSD 1.7 - DC Power Distribution (options)
BSD-ON:
BSD 1.11 - HCF Power Distribution
The HCF Top Cover Interlock is open.
Procedure
Execute
Component Control
[078-300 HCF Top Cover Interlock]. Open and close the Top
Cover. The display changes.
Y
N
+24VDC is measured between
PF/JF05
-2 on the HCF PWB and GND.
Y
N
+24VDC is measured between
PF/JF05
-1 on the HCF PWB and GND.
Y
N
+24VDC is measured from
PF/JF04
pins 1 and 2 on the HCF PWB to GND.
Y
N
Use
BSD 1.7 - DC Power Distribution (options)
and the
IOT wirenets
to
troubleshoot the 24 VDC circuit.
Replace the HCF PWB (
PL 10.8
).
Check the wires between
PF/JF05
-1 on the HCF PWB and
FS001
on the HCF Top
Cover Interlock Switch, and between
FS002
on the HCF Top Cover Interlock Switch
and
PF/JF05
-2 on the HCF PWB for an open wire or poor contact. If the wires are
good, replace the HCF Top Cover Interlock Switch (
PL 10.7
).
Replace the HCF PWB (
PL 10.8
).
The problem could be misalignment between the HCF Top Cover and the HCF Top Cover
Interlock Switch. Check if the Switch/Cover is improperly installed and if the actuator is broken
or bent.
If the check is good, replace the following in sequence:
•
HCF PWB (
PL 10.8
)
•
MCU PWB (
PL 18.2
)
078-301 HCF Docking interlock Open RAP
BSD-ON:
BSD 1.11 - HCF Power Distribution
HCF Docking Interlock Open. The HCF and the IOT were undocked.
Initial Actions
•
Check that the HCF and the IOT are docked properly.
•
Switch the power OFF then ON.
Procedure
Execute
Component Control
[078-301], HCF Docking Interlock. Dock and Undock the HCF.
The display changes.
Y
N
Undock the HCF. Press the HCF Docking Interlock several times. The display changes.
Y
N
The voltage between
PF/JF08
-2 on the HCF PWB and GND drops to less that 1
VDC when the Docking Interlock is pressed.
Y
N
Check the wires between
PF/JF08
-1 on the HCF PWB and
FS003
on the HCF
Docking Interlock, and between
FS004
on the HCF Docking Interlock and
PF/
JF08
-2 on the HCF PWB for an open wire or poor contact. If the wires are good,
replace the HCF Docking Interlock Switch (
PL 10.8
).
Replace the HCF PWB (
PL 10.8
).
The problem could be misalignment between the HCF Docking Base and the IOT. Refer
to PL 19.3.
The problem may be intermittent. Check the circuit (
BSD 1.11 - HCF Power Distribution
) for
loose or damaged wiring.