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3.5
NMEA Version Setting
Change the jumper block setting in the processor unit according to NMEA version to
output.
Jumper
J22
J25
3.6
Adjusting Echo Sounder Video
When using the E/S interface to connect an echo sounder, adjust the video signal with
the potentiometer R142 on the MAIN Board in the processor unit.
1. Rotate R142 so that the line on it locates at the center position
2. Set the SOUNDER MENU as below to appear noises on the screen.
GAIN: 10, CLUTTER: 0
3. On the SOUNDER MENU, set E/S INT REJECT to ON.
4. Set GAIN to 0.
5. Adjust R142 so that noises disappear.
6. Return the GAIN setting to 10.
7. After setting GAIN to 10, set CLUTTER to 10.
8. Adjust R142 so that noises disappear.
MAIN Board
J22 J25
Location of jumper block J22 and J25
NMEA Ver1.5
1-2 (Default setting)
1-2 (Default setting)
MAIN Board
R142
Location of volume register R142
CIF or NMEA Ver2.0
2-3
2-3
3. ADJUSTMENT
Port
NMEA1/CIF1
NMEA2/CIF2
3-7
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