Operating instructions

TM 11-5865-229-12
Make sure system power is off. Refer to aircraft manual for instructions.
Gently pry the lamp assembly out
of the switch with a common–tip screwdriver.
Replace burned out lamp(s).
Reinstall lamp assembly by pushing it back into switch until firmly seated.
Perform Test No. 1 (Lamp Test) of the operational test paragraph (3-9) to make sure all pushbutton
lamps light.
3-43