35
Service Manual Signum
Repairing the Display Unit
Replacing the Front Panel
In the case of a defective keypad overlay, keys, or display, the entire front panel 
must be replaced (see the picture on the left).
–  Open the display unit (see page 34)
-  Replace the entire front panel with a new one
-   Close the display unit (see page 34)
Replacing the Cable
–  Open the display unit (see page 34)
-  Unplug all connectors from the cable 
-  Loosen the screw 
-  Replace the cable with a new one
-   Close the display unit (see page 34)
–  After replacing the cable, use a torque wrench to tighten the cable gland to  
3 Nm.
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