Table of Contents
Advertisement
920.21—POST (power-on self test)—24 V power supply failure error service check
Step
Questions / actions
Note: The LVPS must be turned off for
1
several seconds before turning back on. This
error can occur if the LVPS does not have
time to recover after being turned off.
1. Open the front door cover
2. Check the 24V interlock switch for
damage and proper installation.
3. Check if the front door actuator can trigger
the sensor.
Is the front door sensor actuator able to
trigger the sensor?
1. Check if the front door assembly can close
2
properly.
2. Check the front door pivot for any
damage.
3. Check if the front door can close properly.
Is the front door damaged?
1. Check the cable in connector JCVR1 for
3
proper connection to the system board,
pinch points, and for any other damage to
the cable or connector.
2. Reseat the cable.
Did the error clear?
1. Disconnect the cable in connector JCVR1
4
2. Connect a new 24 V interlock switch
without properly routing the cables.
Note: The 24V interlock switch should be
plugged in without installing inside the
machine. Close the covers, manually
actuate the switch, and then turn on the
machine.
Did the error clear?
Check the input voltage switch on the back of
5
the low-voltage power supply (LVPS). Some
power supplies do not have the switch.
Note: If your FRU does not have a switch,
proceed to step 6.
Is the voltage level (115/230) properly set?
Reseat the cable in connector JLVPS1.
6
Did the error clear?
Replace the LVPS.
7
Note: Verify first if the new LVPS is working
properly before installing it inside the
machine. Remove the old LVPS, and install
the new LVPS without installing the screws.
Connect the fuser and JLVPS1 connectors to
the new LVPS.
Did the error clear?
Yes
Go to step 3.
Replace the front door. See
"Front door assembly
removal" on page
4-108.
Problem resolved.
Replace the 24 V interlock
switch. See
"24 V
interlock switch removal"
on page
4-63.
Go to step 6.
Problem resolved.
Replace the LVPS. See
"Low-voltage power
supply (LVPS) removal"
on page
4-127.
5026
No
Go to step 2.
Go to step 3.
Go to step 4.
Go to step 5.
Set the switch for the
proper voltage supported
by your country.
Go to step 7.
Replace the system board.
See
"System board
removal" on page
4-163.
Diagnostic information
2-115
Previous
Next
Go Back
Advertisement
Table of Contents
