– 51 –LAMP CHECK PROCEDURE• Turn on the Position Busy lamp.When the Position Busy lamp is off, press the Position Busy key to turn on the Position Busylamp (red).• Press the L5, L6, and SRC keys simultaneously, then all red lamps light steadily.• Press # key.The red lamps go off, and all green lamps light steadily.• Press # key.The green lamps go off, and all character positions on the LCD become black.• Press # key.The LCD is cleared, and an audible tone is heard.• Press # keyThe audible tone stops. When a key is pressed, the corresponding lamp is turned on, and its name is dis-played on the LCD.• Press key.The Lamp Check is terminated.Note: The Lamp Check is terminated whenever the key is pressed. The Position Busy lamp remainson during Lamp Check.