not working light for LСD, board Ramps-FD

SONIC300077

I want to use the display backlight to turn on the light in the chamber of the printer, put the parameter memory
#define CASE_LIGHTS_PIN ORIG_FAN2_PIN
#define CASE_LIGHT_DEFAULT_ON 1

but after turning on the printer light does not turn on, try to turn the menu is switched on for 1 second and immediately OFF??

Repetier

Make sure nothing else is using fan 2 pin like heaters or having second fan enabled.

good_idea

Is there any way to control (switch on/off) case lights from reperiter host during print?

Repetier

send

M355 S1

to enable and

M355 S0

to disable it.