MIL-V-62475(AT)
3.5.21.2 TSCD indicators. The front panel of the TSCD shall provide illuminating indicators. The targeting head status indicators shall prompt the operator as to the status of the targeting head. Interrupt indicators shall be provided to inform of interrupted turret motion and laser fire. Fault indicators shall alert the operator that either built-in-test (BIT) has detected a
fault in the TSCD, North Seeking Gyrocompass (NSG) or G/VLLD or their interfaces, or that the
vehicle or equipment battery is low. NSG and G/VLLD indicators shall display the status of their respective equipment (see table III) (see 4.6.4.20.2).
3.5.21.3 System test. The test key shall provide a menu to initiate the system-test, examine the current and accumulated BIT status error codes, clear any present faults and observe the NSG mode and self-test status. The TSCD shall display BIT status by means of three alphanumeric error codes; a TSCD error code, a G/VLLD error code and a NSG error code (see 4.6.4.20.3).
TABLE III. TSCD indicator lamps.
Indicator |
Color |
Meaning |
HEAD ERECT HEAD READY EL ABOVE EL BELOW EL STOW AZ STOW HEAD STOW LASER INTRPT CARGO HATCH DRIVER HATCH WPN HATCH NSG READY NSG ON NSG ALIGN GLLD ON NSG FAULT |
White Green Yellow Yellow White White White Yellow Yellow Yellow Yellow Green Green Yellow Green Red |
Targeting head is full erect. Targeting head is erect and G/VLLD cradle locks are in place. Head is too high for stow position. Head is too low for stow position. Head is at proper elevation angle or position to stow. Head is at proper azimuth angle or position to stow. (179.5° Minimum, 180.5° Maximum) Head is in stowed position. Indicates a condition that will prevent laser fire. Indicates the cargo hatch is not securely closed. Indicates the drivers hatch is not securely closed. Indicates the weapon (targeting station) hatch is not securely closed. NSG is in directional-gyro mode. NSG power switch is on. Steady - NSG is in the initialization, or realignment mode. Flashing-Vehicle coordinates need to be entered into VEH GRID memory. The GLLD rotary function switch is set at RNG 2 (range 2), RNG 1 (range 1) or DES (designate). The TSCD BIT test or the NSG internal BIT has detected an NSG fault. |
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