TM 1–1520–238–T–3
7–18
Change 4
7–63 SIGNAL NAME:
PLT VIDEO SEL SW (ACZ)
MEMORY LOCATION: 001120
MEMORY DATA BIT(S):
8
(BINARY)
CONDITION:
If fourth digit on HOD is 2 or 3=CPG
If fourth digit on HOD is 4 or 5=GR SCALE
If fourth digit on HOD is 6 or 7=PILOT
SIGNAL FUNCTION:
Selects grey scale for helmet mounted display (HMD) calibration.
REMARKS: From pilot FCP through LH FAB MRTU Type I to FCC.
PASS:
If fourth digit on HOD is 0, 1, 4, 5, 6 or 7, go to Chapter 15, paragraph 15–63.
FAIL: Location of fault: pilot FCP, wiring from pilot FCP to LH FAB MRTU Type I, LH FAB MRTU Type
I. Troubleshoot wiring to isolate fault (TM 9–1270–221–23).
