TM 1–1520–238–T–1
4–40
4–6
IHADSS – INTERACTIVE FD/LS CHECK (cont)
4–6
FD/LS NO–GO
DISPLAY
CORRECTIVE ACTION
SEU NO–GO RH FAB
Troubleshoot wiring to isolate
fault (TM 9-1270-221-23). If
troubleshooting does not
remove NO–GO, replace
sight electronics unit (SEU)
(TM 9-1270-221-23).
DEU NO–GO RH FAB
Troubleshoot wiring to isolate
fault (TM 9-1270-221-23). If
troubleshooting does not
remove NO–GO, replace
display electronics unit (DEU)
(TM 9-1270-221-23).
PILOT DAP OR HDU
NO–GO PILOTS
COMPARTMENT
Troubleshoot wiring to isolate
fault (TM 9-1270-221-23). If
troubleshooting does not
remove NO–GO, replace pilot
display adjust panel (DAP) or
helmet display unit (HDU)
(TM 9-1270-221-23).
CPG DAP OR HDU
NO–GO CPG
COMPARTMENT
Troubleshoot wiring to isolate
fault (TM 9-1270-221-23). If
troubleshooting does not
remove NO–GO, replace
CPG DAP or HDU
(TM 9-1270-221-23).
CPG RIGHT SSU
NO–GO CPG
COMPARTMENT
Troubleshoot wiring to isolate
fault (TM 9-1270-221-23). If
troubleshooting does not
remove NO–GO, replace
CPG right sensor surveying
unit (SSU)
(TM 9-1270-221-23).
CPG LEFT SSU
NO–GO CPG
COMPARTMENT
Troubleshoot wiring to isolate
fault (TM 9-1270-221-23). If
troubleshooting does not
remove NO–GO, replace
CPG left SSU
(TM 9-1270-221-23).
