Question about JRC 1800CP GPS Receiver

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JRC FF-30 colour fishfinder

Just bought one, there are two wires on back, one red the other black. The seller has tagged the black one as power (+) and the red one as negative(-) This seems to be backwards but can't find anyone to tell me otherwise, and as this is a JAPAN RADIO Co. product, don't know if I should go with my instinct of red=positive/black is ground...

Any help out there?

Anyone have a manual I can get?

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4 Suggested Answers

SOURCE: DSC hookup

It appears to have a computer interface,It uses an RS232C Interface, a small D9 Socket on unit, you need a specially wired cable, to talk to your unit, with GPS software, it sends out NEMA codes to the PC. You also need driver, and software, software at the least. www.jeppesen.com/documents/.../FullCompatabilityListAug09.pdf software compatibility list above.

I looked but couldn't find a manual...

Posted on Apr 03, 2010

saailer
  • 1868 Answers

SOURCE: JRC GPS JLU 128 Plotter

Hello! Are you installing a new antenna or using the same antenna that is already installed on the vessel?....................Guru.....Saailer

Posted on Jan 15, 2011

Ironfist109
  • 3018 Answers

SOURCE: looking 4 instruction manual 4 JRC Plot 500F GPS Receiver

Regards, Tony

Posted on Jun 06, 2011

emissionwiz
  • 64034 Answers

SOURCE: The antenna cable of JRC

I have the service manual for this GPS and it doesn't list the wire colors directly for the plug. This much I'm sure of:
RED-12 VOLTS (+)
BLACK-GROUND (-)
GREEN IS COMMON AND HOOKS TO CHASSIS OF GPS
THAT LEAVES THE BROWN AND YELLOW, BASED ON STANDARD DIN WIRE COLORS THE YELLOW IS LIKELY GPS OUPUT. HERE IS THE LINK TO THE SERVICE MANUAL. IF YOU OPEN UP THE UNIT THE WIRE COLORS SHOULD BE PRINTED ON THE CIRCUIT BOARD THAT THE PLUG IS ATTACHED TO.
http://www.pronav.no/engelske-manualer/ff50serv-eng.pdf

Posted on Jun 06, 2011

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Question: What are the extra wires used for on the power cable for my fishfinder?
I found this on the carmin website under questions and answers. I think your cable is ok to use according to this.
--> Answer: Not all of the wires in the harness are required for use. To connect the unit to the power source, only the black & red wires are required (black to ground, red to positive). Here are descriptions of the other wires in the harness:
  • The Blue wire is used for a NMEA data out connection to another NMEA compatible device. The fish finder outputs NMEA 0183 version 3.01. The receiving device must be compatible with this format and looking for the NEMA sentences DPT, DBT, MTM, or VHW.
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  • The green, white, and any other colors present have no connection purpose related to your fishfinder. The 18 Pin connector wiring harness is used by several other devices which utilize these wires.
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check the remote wire same way as about if you get 12 to 14.4 volt it works if not could be blown from radio or bad ground

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Hello!

POWER

Constant +12=Blue/Yellow...Switched +12=Gray
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SPEAKERS

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