TM 11-6720-—250-35 quired to apply the vertical, right oblique or left oblique light sensor (Unit 5) exposure (bright- ness) signal through the photo junction panel (Unit 8) to the camera (Unit 9). This exposure (brightness) signal drives the camera shutter curtains to the desired slit width opening and also the lens cone diaphragm (except LA-870A, 1 3/4-inch lens cone) to the desired opening (f/ stop). Operation of the preselected camera door actuator relay 8K2, 8K3 or 8K4 will inhibit the exposure (brightness) signal of the remaining light sensors from control over the exposure cir- cuitry of the camera (Unit 9).
DesignationTM 11-6720
EditionOct 1971
StatusSuperseded
Pages477
FunctionComms Signal
CollectionHistoric
Public domain (U.S. Government work)