TM 9-4120-402-14
5-8. LOGIC BOX ASSEMBLY (LGC1). - continued
(r)
Place S2 in the ON position. LEDs 2 and 7 remain illuminated. S2 has no effect.
(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.
(t)
Without placing S3 in the OFF position, turn MODE switch to COOL position with TEMPERATURE 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 second delay,
LED 3 shall illuminate.
(6)
Turn test fixture power off and disconnect test equipment from logic box assembly.
NOTE
FOLLOW-ON MAINTENANCE:
Install logic box assembly (para 4-36).
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