Actions Yes No
Step 1
Enter the Diagnostics Menu (turn the printer off, press and hold 3 and 6,
turn the printer on, and then release the buttons when the installed
memory and processor speed displays).
Perform the Panel Test. See
“Panel Test” on page 172.
Did all the pixels come on?
Go to step 2. Replace the display and
UICC card. See
“Operator panel
removal (for CS410
models only)” on
page 256.
Step 2
Turn the printer off.
Remove the rear cover. See
“Rear cover removal” on page 290.
Remove the operator panel. See
“Operator panel removal (for CS410
models only)” on page 256.
Is the operator panel cable properly installed at JLCD2 on the controller
board and the operator panel assembly?
Go to step 3. Reinstall the cable.
Step 3
Replace the UICC card with display. See
“Operator panel removal (for
CS410 models only)” on page 256.
Is the operator panel still dim and unchanging?
Replace the controller
board. See
“Controller
board removal” on
page 291.
Problem resolved.
For CS510 models:
5027
Diagnostic information
125