TM 9-4120-404-14
3. Rotate R6 slowly towards warmest position until LED 1 illuminates. Squeeze thermistor, RT1,
between fingers for 20 seconds. LED 1 shall turn off. LED 7 shall remain illuminated.
4. Rotate R6 towar ds warm until LED 1 illuminates again. Place S3 in the "ON" position (contacts
open). This step should have no effect on operation. LED's 1 and 7 shall remain illuminated.
5. Place S3 in the "OFF" position. Place S1 in the "ON" position. LED's 1 and 7 shall turn off, and
in 10 seconds LED 3 shall illuminate.
6. Reset logic by turning rotary mode switch, S7, to "OFF/RESET" position. Place S1 in the "OFF"
position. Move R6 to warmest position. Set mode switch, S7, to "H". LED's 1 and 7 shall
illuminate following a 2-second delay.
7. Place S1 in the "ON" position for 2 seconds, then place S 1 in the "OFF" position. LED's 1 and 7
shall turn off for 10 seconds then shall illuminate.
8. Place S2 in the "ON" position for 2 seconds, then turn S2 of f again. LED 1 shall turn off. After 10
seconds LED 7 shall turn off for 2 seconds. Then both LED's shall illuminate again.
9. Place S2 in the "ON" position. LED 1 shall turn off, LED 7 shall remain illuminated. LED 3 shall
illuminate after 10 seconds.
10. Reset logic by turning rotary mode switch, S7, to "OFF/RESET" position. Place S2 in the "OFF"
position. Maintain R6 in warmest position. Set mode switch, S7, to "H". LED's 1 and 7 shall
illuminate after a 2-second delay.
11. Place S4 in the "ON" position. The following routine shall occur:
a.
LED 1 shall turn off LED 7 shall remain illuminated.
b.
For the next 8 seconds:
LED 4 illuminates.
LED 7 remains illuminated.
c. For the next 2 seconds:
LED's 4 and 7 turn off.
d.
For the next 2 seconds:
LED 4 shall continue to be off.
LED 7 shall illuminate.
3-91