Icom MR-1220 Instruction Manual - Page 53

Connecting the system cable, CAUTION: DO NOT, DO

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9 Installation and connections Installing the scanner unit (Radome type) DDConnecting the system cable CAUTION: DO NOT cut the supplied system cable. 1. Using a hex head wrench, loosen the 4 bolts on the bottom of the scanner unit, and remove the cover. LLYou can use a Phillips head or flat head screwdriver instead of the hex head wrench. 2. Loosen the sealing nut on the scanner unit, and then pass the system cable through the sealing nut and sealing tube, and the scanner body. (1) 3. Insert the black and white PA cable connector into the PA unit connector J1. (2) 4. Connect the shielded cable ground wire to the ground plate with the screw. (3) 5. Clamp the system cable with the ferrite EMI filter attached near the sealing connector. LLBe sure to clamp it tightly. (4) 6. Connect the power cable (black and red) to the power connector. (5) DO NOT install the system cable too tightly. It may cause contact failure. 1 System cable Sealing tube Sealing nut 3 5 2 Scanner body 4 PA cable (Loop) Power cable (Straight) Ferrite EMI filter 7. Tighten the sealing nut. 8. Replace the radome cover over the scanner unit. Be sure that the "▲" mark on the top of the cover faces the vessel's bow. 9. Tighten the four bolts on the bottom of the scanner unit. (Torque: 5.0 N•m, 3.69 lbf•ft) LLThe four protrusions around the radome cover indicate the location of the bolt receptacle. ▲ mark Bow Bolt 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 Stern System cable 48

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48
INSTALLATION AND CONNECTIONS
9
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
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18
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20
21
Installing the scanner unit (Radome type)
D
Connecting the system cable
CAUTION: DO NOT
cut the supplied system cable.
1.
Using a hex head wrench, loosen the 4 bolts on
the bottom of the scanner unit, and remove the
cover.
L
You can use a Phillips head or flat head screwdriver
instead of the hex head wrench.
2.
Loosen the sealing nut on the scanner unit, and
then pass the system cable through the sealing
nut and sealing tube, and the scanner body. (
1
)
3.
Insert the black and white PA cable connector into
the PA unit connector J1. (
2
)
4.
Connect the shielded cable ground wire to the
ground plate with the screw. (
3
)
5.
Clamp the system cable with the ferrite EMI filter
attached near the sealing connector.
L
Be sure to clamp it tightly. (
4
)
6.
Connect the power cable (black and red) to the
power connector. (
5
)
DO NOT
install the system cable too tightly.
It may cause contact failure.
7.
Tighten the sealing nut.
8.
Replace the radome cover over the scanner unit.
Be sure that the “▲” mark on the top of the cover
faces the vessel’s bow.
9.
Tighten the four bolts on the bottom of the
scanner unit. (Torque: 5.0 N•m, 3.69 lbf•ft)
L
The four protrusions around the radome cover
indicate the location of the bolt receptacle.
Bow
Stern
System
cable
▲ mark
Bolt
Power cable
(Straight)
PA cable
(Loop)
Ferrite EMI
filter
Sealing nut
2
3
1
4
5
Sealing tube
System
cable
Scanner body