TM9-4120-401-14
LOGIC BOX ASSEMBLY (LGC1). - continued
5-8.
(s) Place S2 in the OFF position and place S3 in the ON position. Turn MODE switch to HEAT position
with TEMPERATURE control set at the WARM position. After a 2-second delay LEDs 1 and 7
illuminate. S3 has no effect.
Without placing S3 in the OFF position, turn MODE switch to COOL position with TEMPERATURE
(t)
control set at the COOL position. LED 2 shall not illuminate but LED 7 shall illuminate. After a 10-
second delay LED 3 shall illuminate.
(u) Place S3 in the OFF position. After up to a 10-second time delay LEDs 3 and 7 shall turn off. LEDs
7 and 2 shall illuminate within 4 seconds.
(v) Place switches S1 through S6 in the OFF position and reset MODE switch by turning to
OFF/RESET position. Turn MODE switch to VENT position. Then place S2 and S3 in the ON
position. If LED 7 is illuminated it shall turn off. After a 10 second delay LED 3 shall illuminate.
(w) Place S2 and S3 in the OFF position and reset MODE switch by turning to OFF/RESET position.
Place S1 in the ON position and turn MODE switch to VENT position. No LEDs shall illuminate.
After a 10 seoond delay, LED 3 shall illuminate.
(6) Turn test fixture power off and disconnect test equipment from logic box assembly.
NOTE
FOLLOW-ON MAINTENANCE:
5-21