3-13
3.2 Checking Magnetron Heater Voltage
Magnetron heater voltage is formed on the MD (1824C), PTU (1834C) or RTB
(1934C/1944C1954C) Board of the antenna unit, and preadjusted at the factory. Therefore,
no adjustment is required. However, check magnetron heater voltage for confirmation as
shown below. This procedure should only be performed by a qualified technician.
1. Open the antenna unit.
2. Turn on the power. Do not transmit the radar.
3. Connect a multimeter, set to 10VDC range, appropriate position on the MD (1824C),
PTU (1834C) or RTB (1934C/1944C1954C) Board in the antenna unit. Refer to the table
in below.
4. Confirm that the multimeter indication is within the ratings shown below.
MODEL1824C MODEL1834C MODEL1934C/1944C/
1954C
Check point
TP804#6 (+) and #4
(-) on MD Board
TP802#4 (+) and #6 (-)
on PTU Board
J825#4 and #6 (GND) on
RTB Board
Multimeter
indication
7.9 to 8.1 V 7.4 to 7.6 V 7.4 to 7.6 V
Adjustment point VR801 on MD Board R106 on PTU Board VR801 on MD Board
3.3 Remote Controller Setting
A remote controller can be set exclusively for use with a specific display unit, in the case of
multiple NavNet display units. Set the remote controller ID mode desired on the menu and
attach appropriate label (supplied with accessories) to the remote controller and display
unit.
1. Press the MENU key followed by the SYSTEM CONFIGURATION and GENERAL
SETUP soft key to show the GENERAL SETUP menu.
Page 2
Page 1
KEY BEEP ON
LANGUAGE ENGLISH
RANGE UNIT nm, kt
TEMPERATURE UNIT
°
F
DEPTH UNIT ft
WIND UNIT ft
WIND DATA APPARENT
SPEED AVERAGING 60 seconds
LOCAL TIME OFFSET 9H 0m
RESET TRIP LOG NO
TIMEOUT DISPLAY SETTING 15 sec
SAVE MOB KEY FUNCTION SAVE SHIP
POSITION & MOB
WALLPAPER DEFAULT
LAT/LON DISPLAY DD˚MM.MMMM'
TD DISPLAY LORAN C
SPEED SOG
POSITION DISPLAY LAT/LON
TIME DISPLAY 24 HOURS
INFRARED REMOTE MODE A
RANGE & BEARING MODE RHUMB LINE
BEARING READOUT MAGNETIC
MAGNETIC VARIATION AUTO 07.0
°
E
GENERAL SETUP menu
2. Press the NEXT PAGE soft key to show Page 2.
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