CAUTION: After connecting the DC power cable, NMEA IN/OUT leads, external speaker lead and hailer/foghorn lead, cover the connector and leads with an adhesive tape as shown below, to prevent water seeping into the transceiver.

Rubber vulcanizing tape

*The supplied ferrite core must be attached to the NMEA in/out leads and DC power cables as illustrated at left. Fix the ferrite core near the transceiver with the two supplied ties to prevent it from moving.

■Fuse replacement

One fuse is installed in the supplied DC power cable. If a fuse blows or the transceiver stops functioning, track down the source of the problem if possible, and replace the damaged fuse with a new one of the proper rating.

Fuse rating: 10 A

CONNECTIONS AND MAINTENANCE 9

■Supplied accessories

Mounting bracket

For mounting bracket

 

 

 

Knob bolts

Flat washers (M5)

 

Screws (5⋅ 20) Spring washers (M5)

Microphone*

For microphone

 

 

 

 

Connection cable*

Mounting base*

 

(OPC-1000: 6m; 20 ft)

 

 

 

 

 

 

9

 

 

 

Tapping screws*

 

 

 

(M3 ⋅

16)

*Depending on version

 

 

 

Microphone hanger

DC power cable

Warning

Ferrite core

and screws (3⋅ 16)

(OPC-891A)

sticker

 

and ties

■Antenna

A key element in the performance of any communication sys- tem is the antenna. Ask your dealer about antennas and the best place to mount them.

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Icom IC-M504 instruction manual Fuse replacement, Supplied accessories, Antenna
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