TM 1–1520–238–T–3
20–29
20–76 SIGNAL NAME:
DOP VERTICAL VEL BCD
MEMORY LOCATION: 000527
MEMORY DATA BIT(S):
7–4
(HEX)
CONDITION:
If first digit displayed on HOD is 0, and second digit is 0, 2, 4, or 6=0
If first digit displayed on HOD is 1, and second digit is 0, 2, 4, or 6=1
If first digit displayed on HOD is 2, and second digit is 0, 2, 4, or 6=2
If first digit displayed on HOD is 3, and second digit is 0. 2. 4, or 6=3
If first digit displayed on HOD is 4, and second digit is 0, 2, 4, or 6=4
If first digit displayed on HOD is 5, and second digit is 0, 2, 4, or 6=5
If first digit displayed on HOD is 6, and second digit is 0, 2, 4, or 6=6
If first digit displayed on HOD is 7, and second digit is 0, 2, 4, or 6=7
If first digit displayed on HOD is 0, and second digit is 1, 3, 5, or 7=8
If first digit displayed on HOD is 1, and second digit is 1, 3, 5, or 7=9
SIGNAL FUNCTION:
Indicates ones field.
REMARKS: From Doppler through CPG MRTU Type III to FCC.
PASS:
If CONDITION agrees with vertical velocity, go to paragraph 20–77.
FAIL: Location of fault: Doppler, wiring from Doppler to CPG MRTU Type III, CPG MRTU Type III.
Troubleshoot wiring to isolate fault (TM 11–1520–238–23–2).
20–77 SIGNAL NAME:
DOP VERTICAL VEL BCD
MEMORY LOCATION: 000530
MEMORY DATA BIT(S):
19–16
(HEX)
CONDITION:
If fifth digit displayed on HOD is 0, and sixth digit is 0=0
If fifth digit displayed on HOD is 1, and sixth digit is 0=1
If fifth digit displayed on HOD is 2, and sixth digit is 0=2
If fifth digit displayed on HOD is 3, and sixth digit is 0=3
If fifth digit displayed on HOD is 4, and sixth digit is 0=4
If fifth digit displayed on HOD is 5, and sixth digit is 0=5
If fifth digit displayed on HOD is 6, and sixth digit is 0=6
If fifth digit displayed on HOD is 7, and sixth digit is 0=7
If fifth digit displayed on HOD is 0, and sixth digit is 1=8
If fifth digit displayed on HOD is 1, and sixth digit is 1=9
SIGNAL FUNCTION:
Indicates tenths field.
REMARKS: From Doppler through CPG MRTU Type III to FCC.
PASS:
If CONDITION agrees with vertical velocity, go to paragraph 20–78.
FAIL: Location of fault: Doppler, wiring from Doppler to CPG MRTU Type III, CPG MRTU Type III.
Troubleshoot wiring to isolate fault (TM 11–1520–238–23–2).
20–78 SIGNAL NAME:
DOP VERTICAL VEL
MEMORY LOCATION: 000531
MEMORY DATA BIT(S):
18–17
(BINARY)
CONDITION:
If fifth digit displayed on HOD is 2 or 3=failure warning
If fifth digit displayed on HOD is 4 or 5=no computed data and no failure detected
If fifth digit displayed on HOD is 6 or 7=minus, south, east, down, from
SIGNAL FUNCTION:
Indicates sine/status of Doppler.
REMARKS: From Doppler through CPG MRTU Type III to FCC.
PASS:
If CONDITION agrees with vertical velocity go to paragraph 20–79.
FAIL: Location of fault: Doppler, wiring from Doppler to CPG MRTU Type III, CPG MRTU Type III.
Troubleshoot wiring to isolate fault (TM 11–1520–238–23–2).
