|Quoting fr8mech (Reply 1):|
Are you saying that when the L RECIRC Fan is turned off the master dim function on the flight deck is inop? Or just the INOP light on the switch?
|Quoting fr8mech (Reply 2):|
The dim control relays are energized by the DIM position of the control switch providing a ground.
|Quoting fr8mech (Reply 4):|
Quoting HAWK21M (Reply 3):Any reason for this circuitry
The AMM says:
Quoting fr8mech (Reply 2):This ensures all warning and caution annunciations are visible even if cooling is lost.