![Koden MDP-621 Operation Manual Download Page 180](http://html.mh-extra.com/html/koden/mdp-621/mdp-621_operation-manual_1984748180.webp)
MDP-621/641/640
Chapter 10
Operation manual
MENU operation
a) ROM
Indicates the ROM status.
b) RAM
Indicates the RAM status.
c) Backup memory
Indicates the backup memory status.
d) BATTERY
Indicates the backup memory battery status.
e) +5V voltage
Indicates the reference voltage status of the video circuit and its voltage
value. (normally about 5V)
f) +12V
Indicates the +12V voltage status. (normally about 12V)
g) CHART1
Map number stored in Map Card 1
h) CHART2
Map number stored in Map Card 2
i) RADAR
Indicates the Scanner type ex.4KW RADOME
j) TRIGGER
Indicates the signal line status for the trigger signal sent from the
scanner
unit.
k) AZIMUTH
Indicates the signal line status for the bearing signal sent from the
scanner
unit.
l) HM
Indicates the signal line status for the bow signal sent from the
scanner
unit.
m) H.T. AT SU
Indicates the status of the high voltage supplied from the display unit to
the scanner unit and its voltage value (normally about 250V) at scanner
unit.
n) H.T. AT DU
Indicates the status of the high voltage supplied from the display unit to
the scanner unit and its voltage value (normally about 250V) at display
unit.
o) MAG CUR
Indicates the status of the anode current flowing in the magnetron and
its current value.
p) MAG HEATER
Indicates the status of the magnetron heater voltage.
q) TUNE
Indicates the status of the voltage used for tuning.
r) MOTOR
Indicates the status of the voltage used for motor.
s) HOURMETER
Indicates the cumulative time your radar/plotter is used.
OPERATE
Duration of time during which the power supply is turned on.
TRANSMIT
Duration of time transmitting.
t) ATA
Indicates the ATA software version.
u) ROM1
Indicates the system ROM1software version.
v) ROM2
Indicates the system ROM2 software version.
w) FRONT PANEL KEY
As you press any front-panel key when the SYSTEM CHECK screen is
on, the corresponding key is highlighted on the screen by displaying it in
reverse
video.
0093161022-06
10-19