Test Pattern; Replacing The Magnetron; Replacing The Synchro Belt - Furuno 1623 Operator's Manual

Antenna unit
1. Turn on the power while pressing and
holding down the [MENU/ESC] key.
Continue pressing the [MENU/ESC] key
until the Installation menu appears.
2. Press ▼ to choose SCANNER TEST.
3. Press ► to start the test. In a few
moments the results will appear.
ANTENNA STATUS
HEADING
BEARING
TUNE :
TOTAL ON TIME
TOTAL TX TIME
INPUT NMEA
RMA RMB RMC BWC GLL
MTW VTG VHW
DBK DBS DBT
BWR GLC GTD MWV
* 25.0 = Long range
31.0 = Medium range
41.0 = Short range
Antenna test results
The antenna unit and heading and
bearing signals are checked, and the
results shown as OK or NG (No Good).
For any NG, contact your dealer for
advice.
"TUNE" shows, by tuning bar, radar
receiver tuning status. Total on time and
total TX times appear below the tuning bar.
Data sentences currently input to the
radar are highlighted in the "INPUT
NMEA" window.
: OK
: OK
: OK
(25.0rpm)*
: 00000h
: 00000h
GGA
XTE VBW DPT
HDT HDG HDM
WPL ZDA

2.5 Test Pattern

This feature tests for proper display of tones.
1. Turn on the power while pressing and
holding down the [MENU/ESC] key.
Continue pressing the [MENU/ESC] key
until the Installation menu appears.
2. Press ▼ to choose LCD PATTERN.
3. Press ► to start the test. The entire
screen is black.
4. Press the [MENU/ESC] key and the
screen turns white.
5. Press the [MENU/ESC] key again and the
screen shows a four-tone display.
6. Press the [MENU/ESC] key again to
return to the Installation menu.
7. To restore normal operation, turn off the
power and turn it on again.
BLACK
Press
[MENU/
ESC].
Test patterns

2.6 Replacing the Magnetron

When the magnetron has expired, distant
targets cannot be seen on the display. When
you feel long range performance has
decreased, contact a FURUNO agent or
dealer about replacement of the magnetron.
(Type: E3588, Code No: 000-142-270)
2.7 Replacing the Synchro
Belt
When the synchro belt has worn out, the
sweep is not synchronized with antenna
rotation, which results in an abnormal picture.
When you suspect that the synchro belt has
worn out, contact a FURUNO agent or dealer
about replacement. (Type: 40 S2M 266UG,
Code No: 000-808-743)
21
FOUR-TONE
WHITE
Press
[MENU/
ESC].