No red LED light: No 5V power. Check power supply, check power supply voltage, check wirings and
connections. CPU board failure is not common but possible.
BLUE light:
Solid RED LED light is required to see BLUE LED status!
Solid or no blue LED light: MicroSD Card/software failure. Put backup MicroSD card provided with machine
and check results. There is a posibility to write image on old MicroSD card if it is not physically damaged.
Blinking: Normal operating state – everything seems to be ok with CPU board software.
2. Check two power supplies placed behind bottom rear service door.
Solid green LED signal means: Everything is ok.
Blinking green LED signal means: Power supply failure.
a) Too low power load due disconnected some components of the machine
b) Short circuit in installation
No green LED signal means:
a) Power supply failure
b) No power on supply cables
8.3 BLACK SCREEN WITHOUT COMMUNICATES
1. Check screen power plug
2. Check if the screen is turned ON:
Open big rear service door and check POWER LED signal.
Solid RED: means that TV is turned off (sometimes it could happen). If you see RED LED signal, click by the
nearest button to turn it on(see picture) or use porovided tv remote.
No LED: Screen is ON and it working properly. Check input source using tv remote. Or no power
supplied/screen failure.
3. Check CPU board (1st step of „No signal alert on screen”)
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