TM 1-1520-238-MTF2-30PROCEDURETROUBLESHOOTINGREFERENCEAFTER STARTING APU (CONT)b. VID SEL switch check:(1) PNVS – Verify pilots displaypresent.(2) TADS – Verify TADS symbologydisplayed.c. SIGHT SEL switch – TADS. Verifyturret slews to fixed forward,FORWARDmessage displayed inHOD High Action Display.d. Autodrift null check:(1) SLAVE switch – Unslave.Observe turret for anyuncommanded tendency to driftor drive. When it appears todecrease to a minimum or stop,depress SLAVE switch. Verifyturret returns to fixed forward.(2) SLAVE switch – Unslave. Slewturret to an easily observedtarget.(3) FOV select switch – N. Noteany remaining uncommandeddrift.NOTEIf turret drift is not minimized to an accept-able level during the autodrift null proce-dure, perform the manual drift null proce-dure. Refer to Chapter 4, paragraph B.
Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business
