Dell PS-M4110 User Manual page 220

Figure 11. Removing and Installing LCD Module
1 cable cover
3 ribbon cable
5 screws (2)
Table 41. LCD Hardware Troubleshooting Items
Symptom
Alert screen message CMC Not
Responding and LED is blinking
amber.
Alert screen message CMC Not
Responding and LED is solid
amber or is off.
Screen text is scrambled.
LED and LCD is off.
220
2
4
Issue
Loss of communication from CMC
to the LCD front panel.
LCD module communications is
stuck during a CMC fail-over or
reboots.
Defective LCD screen.
The LCD cable is not connected
properly or is faulty; or the LCD
module is faulty.
LCD module
hinges (2)
Recovery Action
Check that CMC is booting; then, reset CMC
using GUI or RACADM commands.
Review the hardware log using the GUI or
RACADM commands. Look for a message
that states: Can not communicate
with LCD controller.
Reseat the LCD module ribbon cable.
Replace the LCD module.
Review the hardware log using the GUI or
RACADM commands. Look for a message
that states:
•
The LCD module cable is
not connected, or is
improperly connected.