Sharp MX-C507P - Page 278

5028
950.xx NVRAM failure service check
Warning—Potential Damage: When replacing any of the following components, replace only one
component at a time or the printer will be rendered inoperable:
Replace the required component, bring the printer up in Diagnostics mode, and then verify that the problem is
fixed before performing a POR.
This error indicates a mismatch between the operator panel assembly and the system board.
Diagnostics and troubleshooting
244
Actions
Yes
No
Step 1
Verify if the control panel has been replaced.
Has the control panel been replaced?
Go to step 2.
Go to step 3.
Step 2
Replace the control panel with a new, and not previously installed,
UICC card. See “Upper control panel removal” on page 317 .
Does the problem remain?
Go to step 3.
The problem is
solved.
Step 3
Verify if the controller board has been replaced.
Has the controller board been replaced?
Go to step 4.
Go to step 5.
Step 4
Replace the controller board with a new, and not previously
installed, controller board. See “Controller board removal” on
page 393 .
Does the problem remain?
Go to step 5.
The problem is
solved.
Step 5
a Turn the printer off for ten or more seconds.
b Turn the printer back on.
Does the problem remain?
Go to step 6.
The problem is
solved.