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Why is my XW SCP screen lit with no characters?

It is possible the Rx conductor in Cat5 cable has a bad connection. 
Try a different Cat5 cable. 
There has been at least one instance of brightness/contrast being turned up so high that the characters are illegible. 
This would be indicative of an SCP that is malfunctioning, as the characters should still be legible.
Temporary solution :
Step 1 : Connect SCP to XW, CSW inverter or MPPT80 controller without any other devices in the network. Plug network terminators in unused ports.
Step 2 : Press "Exit" button 10 times>Enter>Arrow down 2 times (to get past SYSTEM SETTINGS in SELECT DEVICE menu)>Enter>Enter>Arrow Down 5 times>Enter
You should now see the characters because the brightness has been reduced. 
If SCP is under warranty, contact Technical Support for RMA.
866-519-1470
If out of warranty, customer may be able to continue to use it if no other abnormal conditions exist.

 
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