TM 1–1520–238–T–2
2–89
Table 2–1.
Master Failure Symptom Index (cont)
Failure Symptom
MOC
Reference
GRAYSCALE TEST PATTERN BRIGHTNESS
AND CONTRAST CANNOT BE ADJUSTED
(ORT: DSPL BRT AND DSPL CONT CONTROL
KNOBS ADJUSTED)
TM 9–1270–221–23
IHADSS
GRAYSCALE TEST PATTERN BRIGHTNESS
AND CONTRAST CANNOT BE ADJUSTED
(PILOT FCP: IHADSS VID SYM BRT AND
CONTRAST CONTROL KNOBS ADJUSTED)
TM 9–1270–221–23
IHADSS
GRAYSCALE TEST PATTERN DOES NOT
APPEAR ON CPG HDU (ORT: GS SWITCH
PRESSED)
TM 9–1270–221–23
IHADSS
GRAYSCALE TEST PATTERN DOES NOT
APPEAR ON PILOT HDU (PILOT FCP: VID
SEL SWITCH SET TO GRAYSCALE)
TM 9–1270–221–23
IHADSS
GRAYSCALE TEST PATTERN IMAGE IS
OBSTRUCTED OR APPEARS DEGRADED ON
PILOT OR CPG HDU (ORT: GS SWITCH
PRESSED)
TM 9–1270–221–23
IHADSS
GRAYSCALE TEST PATTERN REMAINS ON
HDU (ORT: VID SEL SWITCH SET TO TADS)
(PILOT FCP: VID SEL SWITCH SET TO PLT)
TM 9–1270–221–23
IHADSS
GREEN ACCEPT INDICATOR ON AN/APM–424
TRANSPONDER TEST SET DOES NOT LIGHT
FOR EACH MODE (PILOT IFF
TRANSPONDER CONTROL PANEL: ANT
SWITCH SET TO DIV) (AN/APM–424
TRANSPONDER TEST SET: TEST SEQ
SWITCH PRESSED AND RELEASED)
TM 11–1520–238–23–2
IFF SYSTEM
GREEN ACCEPT INDICATOR ON AN/APM–424
TRANSPONDER TEST SET DOES NOT LIGHT
FOR EACH MODE (PILOT IFF
TRANSPONDER CONTROL PANEL:
IDENT/OUT/MIC SWITCH SET TO OUT)
(AN/APM–424 TRANSPONDER TEST SET:
TEST SEQ SWITCH PRESSED AND
RELEASED)
TM 11–1520–238–23–2
IFF SYSTEM
