3-14
7) Set the controls and switches as follows.
A/C SEA control: fully CCW (same as step 4)
A/C RAIN control: fully CCW (same as step 4)
GAIN control: fully CW
INT REJECT key: OFF
RANGE: 24 nm
Echo Stretch (in menu): OFF
8) Select Video signal level to "DGTL" on the INITIAL SETTING 2 menu.
(Keystrokes; RADAR MENU, 0, 0, 2, 0, 0, 6 and 6.)
9) Press the ENTER key.
10) Adjust potentiometer R103 ("LEVEL") on the ARP Board so that random noise faintly
appears.
Proper
No noise
Too much noise
11) Select video level to "ANLG", and press the ENTER key.
12) Turn off #4 of DIP switch S1.
Confirmation after installation
Connect with a speed log and gyrocompass, and then transmit. Confirm that all red LEDs, CR9,
10, 11, 12, 15 and 16, are off, provided thar the ship's speed is not zero. If any signal is not
applied, the corresponding LED lights.
ARP18P9002
CR16 LOG
CR15 GYRO
CR12 TRG
CR11 VID
CR10 BRG
CR9 HDG
#4
OFF
#3
OFF
#2
OFF
#1
OFF
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