P70, invalid command

[Chuck - Raymarine - Moderator]

Welcome to the Raymarine Forum Eric,

While it is possible that the p70 has suffered a failure and will need to be sent to Raymarine’s Product Repair Center to be bench checked / serviced, it is also possible that the p70's backlight level has been fully reduced. To rule out the latter, power the system ON. After the system has completed startup initialization, press and release the power button and then hold the +1 button pressed for approximately ten seconds. Should doing so not restore the display's brightness, then the display will need to be serviced.