TM 1–1520–238–T–2
2–20
Change 4
Table 2–1.
Master Failure Symptom Index (cont)
Failure Symptom
MOC
Reference
AUDIO TONE IS NOT HEARD OR TUNE METER
SHOWS NO INDICATION (ADF RCVR
CONTROL PANEL: CW/VOICE/TEST SWITCH
SET TO VOICE AND MODE SWITCH SET TO
COMP)
TM 11–1520–238–23–2
AUTOMATIC
DIRECTION FINDER
(ADF) AN/ARN–89
AUDIO TONE IS NOT HEARD (PILOT AFT
CIRCUIT BREAKER PANEL: STAB AUTO AC
AND STAB AUTO DC CIRCUIT BREAKERS
OPENED)
TM 1–1520–238–T–7
STABILATOR
AUDIO TONE IS STILL HEARD AFTER RESET
PUSHBUTTON IS PRESSED
TM 1–1520–238–T–7
STABILATOR
AUDIO VOLUME CANNOT BE ADJUSTED (ADF
RCVR CONTROL PANEL: AUDIO CONTROL
SET AS DESIRED)
TM 11–1520–238–23–2
AUTOMATIC
DIRECTION FINDER
(ADF) AN/ARN–89
AUDIO WARNING IS HEARD (CPG MASTER
CAUTION/WARNING PANEL: ENGINE 1 OUT
INDICATOR PRESSED)
TM 1–1520–238–T–6
AUDIO WARNING
SYSTEM
AUDIO WARNING IS HEARD IN BOTH PILOT
AND CPG HEADSETS (PILOT POWER
QUADRANT PANEL: ENGINE NO 1 PWR
LEVER SET TO FLY)
TM 1–1520–238–T–6
AUDIO WARNING
SYSTEM
AUDIO WARNING IS HEARD IN ONE BUT NOT
THE OTHER HEADSET (PILOT ELEC PWR
PANEL: BATT/EXT PWR SWITCH CYCLED
FROM BATT TO EXT PWR AND BACK)
TM 1–1520–238–T–6
AUDIO WARNING
SYSTEM
AUDIO WARNING IS HEARD IN ONLY ONE
HEADSET (PILOT POWER QUADRANT
PANEL: ENGINE NO 1 PWR LEVER SET TO
FLY)
TM 1–1520–238–T–6
AUDIO WARNING
SYSTEM
AUDIO WARNING IS NOT HEARD IN BOTH
HEADSETS (PILOT AFT CIRCUIT BREAKER
PANEL: STAB AUTO AC CIRCUIT BREAKER
OPENED)
TM 1–1520–238–T–6
AUDIO WARNING
SYSTEM
AUDIO WARNING IS NOT HEARD IN BOTH
HEADSETS (PILOT ELEC PWR PANEL:
BATT/EXT PWR SWITCH CYCLED FROM
BATT TO EXT PWR AND BACK)
TM 1–1520–238–T–6
AUDIO WARNING
SYSTEM
