TM 1-1520-238-10
3-38
KEYBOARD
PUSHBUTTON
TARGET
STORAGE
INDICATOR
RIGHT
DISPLAY
CENTER
DISPLAY
LEFT
DISPLAY
MAL
INDICATOR
LAMP
MEM
INDICATOR
LAMP
DESTINATION DISPLAY
THUMBWHEEL SWITCH
MODE
SWITCH
FLY TO DESTINATION
THUMBWHEEL SWITCH
CLEAR KEY
ENTER KEY
M01-033
KEYBOARD
DIM
CONTROL
DISPLAY
SWITCH
TARGET
STORAGE
PUSHBUTTON
Figure 3-11.
CDU CP1252, Used With AN/ASN-128 DNS
Table 3-12.
AN/ASN-128 Control and Indicator Functions
Control/Indicator
Function
MODE Selector
OFF
Turns off electrical power to the set.
LAMP TEST
Checks the operation of all lamps.
TEST
Initiates a (BIT) exercise for the DNS.
UTM
Selects (UTM) as the navigational mode of operation.
LATT/LONG
Selects LAT/LONG as the navigational mode of operation.
BACKUP
Places navigation set in true airspeed plus remembered wind mode of operation. If true
airspeed is not available, places navigation set in remembered velocity mode of operation.
DISPLAY selector
Selects navigation data for display.
WIND SP/DIR
(Left Display)
Windspeed in kilometers per hour (km/h).
