TM 1–1520–238–T–3
Change 5
10–1
CHAPTER 10
PILOT NIGHT VISION SENSOR (PNVS) SYSTEM
MULTIPLEX READ CODES
FAILURE SYMPTOM INDEX
Symptom
Refer to paragraph
PNVS CAUTION AND WARNING INDICATOR FLASHING . . . . . . . . . . . . . . . . 10–1
PNVS NO–GO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10–9
PNVS WILL NOT RUN BIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10–10
PNVS SERVO MODULE NO–GO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10–11
PNVS VIDEO NO–GO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10–12
PNVS NOT COOLED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10–13
NO PNVS VIDEO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10–14
ACM INOPERATIVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10–24
POLARITY INOPERATIVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10–27
PNVS TURRET DOES NOT GO TO FIXED FORWARD . . . . . . . . . . . . . . . . . . . 10–30
LIMITS MESSAGE DOES NOT APPEAR WHEN LIMITS ARE EXCEEDED . . 10–31
DIRECT DOES NOT APPEAR WHEN TEU FAILS . . . . . . . . . . . . . . . . . . . . . . . . 10–33
TURRET DOES NOT MOVE OR IS INACCURATE IN PNVS
DIRECT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10–34
TURRET DOES NOT MOVE OR IS INACCURATE . . . . . . . . . . . . . . . . . . . . . . . 10–36
CANNOT SELECT CUE MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10–42
PNVS ANTI ICE INOPERATIVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10–43
PNVS BORESIGHT NO–GO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10–45 (ACY) 10–47 (ACZ)
PNVS BORESIGHT NO–GO RAM CHECKSUM . . . . . . . . . . . . . . . . . . . . . . . . . 10–45 (ACY) 10–47 (ACZ)
Personnel Required:
(2)
References:
TM 1–1270–476–T
TM 1–1520–238–T–1
TM 1–1520–238–T–7
TM 1–1520–238–T–8
TM 1–5855–265–T
TM 9–1230–476–20–2
Equipment Conditions:
Ref
Condition
TM 1–5855–265–T
PILOT NIGHT VISION
SENSOR –
MAINTENANCE
OPERATIONAL CHECK in
progress
NOTE
All multiplex read code responses are read from right to
left.
Multiplex read codes must be used in conjunction with
applicable Maintenance Operational Check (MOC) in
progress.
Multiplex read codes are observed on the HOD (ADC) or
CDU (ADD).
