TM 1–1520–238–T–2
Change 7
2–156.1
Table 2–1.
Master Failure Symptom Index (cont)
Failure Symptom
MOC
Reference
RADAR WARNING CONTROL PANEL
EDGE-LIGHT IS NOT LIGHTED (PILOT EXT
LT/INTR LT PANEL: R/CTR CSL SWITCH
ROTATED TO BRT)
TM 11–1520–238–23–2
RADAR WARNING
SYSTEM
AN/APR–39(V)1
(ADN)
RADAR WARNING CONTROL PANEL
EDGE-LIGHT – IS NOT LIGHTED
TM 11–1520–238–23–2
RADAR WARNING
SYSTEM
AN/APR–39(V)1
(ADN) AND RADAR
WARNING SYSTEM
AN/APR–39A(V)1
(ADO)
RADAR WARNING CONTROL PANEL – NO
SELF-TEST AUDIO AND NO DISPLAY WHEN
TEST BUTTON IS PRESSED (ADO)
TM 11–1520–238–23–2
RADAR WARNING
SYSTEM
AN/APR–39A(V)1
(ADO)
RADAR WARNING CONTROL PANEL –
SYNTHETIC VOICE MESSAGE DISTORTED
OR GARBLED (ADO)
TM 11–1520–238–23–2
RADAR WARNING
SYSTEM
AN/APR–39A(V)1
(ADO)
RADAR WARNING CONTROL PANEL – NO
SYNTHETIC VOICE MESSAGE DURING
SELF-TEST OR NORMAL OPERATION,
DISPLAY IS LIGHTED (ADO)
TM 11–1520–238–23–2
RADAR WARNING
SYSTEM
AN/APR–39A(V)1
(ADO)
RADAR WARNING CONTROL PANEL –
SYNTHETIC VOICE MODE INOPERATIVE
(ADO)
TM 11–1520–238–23–2
RADAR WARNING
SYSTEM
AN/APR–39A(V)1
(ADO)
RADAR WARNING DISPLAY (DSCRM ON MODE)
– SHOWS ABNORMAL INDICATION (ADN)
TM 11–1520–238–23–2
RADAR WARNING
SYSTEM
AN/APR–39(V)1
(ADN)
RADAR WARNING DISPLAY (DSCRM ON MODE)
– SHOWS NO INDICATION (ADN)
TM 11–1520–238–23–2
RADAR WARNING
SYSTEM
AN/APR–39(V)1
(ADN)
RADAR WARNING DISPLAY IS NOT BLANKED
DURING IFF TRANSMISSION (AN/APM–424
TRANSPONDER TEST SET: TEST SEQ
SWITCH PRESSED AND RELEASED)
TM 11–1520–238–23–2
IFF SYSTEM
