2-148 Service Manual
7526
Operator panel service check
One or more operator panel buttons fail
Operator panel display blank, five beeps, and LED is off
13
Try using a different ethernet cable.
Did this remedy the situation?
Problem resolved. Go to step 14.
14
Have the network administrator check the
network drop for activity.
Is the drop functioning properly?
Replace the system board.
See “System board
removal” on page 4-157.
Contact the network
administrator.
15
Is the printer on the same wireless network as
the other devices?
Go to step 17. Go to step 16.
16
Assign the correct wireless network to the
printer.
Did this fix the problem?
Problem resolved. Go to step 17.
17
Are the other devices on the wireless network
communicating properly?
Go to step 18. Contact the network
administrator.
18
Verify that the ISP wireless card cable is
properly seated in their connectors.
Is the wireless card seated correctly?
Go to step 20. Go to step 19.
19
Properly reseat the ISP cables.
Did this fix the problem?
Problem resolved. Go to step 20.
20
Replace the ISP wireless card. See Installing
an Internal Solutions Port (ISP).
Did this fix the problem?
Problem resolved. Replace the system board.
See “System board
removal” on page 4-157.
Step Questions / actions Yes No
1 Run the Button Test. See“Button Test” on
page 3-13 in Diagnostics mode.
Did any of the buttons fail the test?
Replace the operator panel
assembly. See “Operator
panel assembly removal”
on page 4-27.
Go to step 2.
2
Disconnect the operator panel assembly
cable from JOPP1 on the system board, and
then measure the voltage on pin 6 and
ground.
Does the voltage measure approximately
+3.3 V dc?
Replace the operator panel
assembly. See “Operator
panel assembly removal”
on page 4-27. If this does
not fix the problem, replace
the top cover access
assembly. See “Top
access cover assembly
removal” on page 4-40.
Replace the system board.
See “System board
removal” on page 4-157.
Step Questions / actions Yes No
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