13.2Replacement of Fuse, Battery

The fuse on the power cable protects the system from reverse polarity of the ship’s mains and equipment fault. If the fuse blows, find the cause before replacing it. Use only a 3A fuse. Using the wrong fuse will damage the unit and void the warranty.

CAUTION

Use the correct fuse.

Use of a wrong fuse can cause fire or equipment damage.

A battery installed on a circuit board inside display unit preserves data when the power is turned off. The life of the battery is about three years. When the battery voltage is low the battery icon ( ) appears on the display. When this happens, contact your dealer to request replacement of the battery.

 

Type

Code Number

 

 

 

Lithium

CR2450-F2 ST2

000-133-495

Battery

 

 

 

 

 

13.3 Simple Troubleshooting

Below are simple troubleshooting procedures which the user can follow to restore normal operation.

Table 13-2 Simple troubleshooting (plotter)

If...

Then...

 

 

 

check for blown fuse.

 

 

 

check that the power connector is firmly tightened.

 

 

you cannot turn on the power

check for corrosion on power cable connector.

 

 

 

check for damaged power cable.

 

 

 

check battery for proper voltage output (10.8 to 31.2 V).

 

 

power is on but nothing appears

press the [POWER/BRILL] key and then the cursor pad to

adjust display brilliance and tone.

 

 

 

there is no response when a key is

turn on the power again.

pressed

 

 

 

 

check for loosened antenna connector.

 

 

position is not fixed within 3 minutes.

check for frequency deviation of GPS receiver on GPS

monitor display.

 

 

 

 

check GPS receiver status indication.

 

 

 

check that the correct geodetic chart system is selected on

position is wrong

the GPS/DGPS/TD OPTIONS menu.

 

enter GPS position offset on the GPS/DGPS/TD OPTIONS

 

 

menu.

 

 

track is not plotted

plotting is stopped. ("H" appears on the plotter display.)

 

 

bearing is wrong

check that correct magnetic variation is entered on the

DISPLAY OPTIONS menu.

 

 

 

Loran or Decca TDs do not appear

check that proper Loran or Decca chain codes are entered

on the GPS/DGPS/TD OPTIONS menu.

 

 

 

Loran TDs are wrong

enter TD offset on the GPS/DGPS/TD OPTIONS menu.

 

 

ship's speed display is not zero after

try to decrease GPS speed smoothing setting on the

ship is stopped

GPS/DGPS/TD OPTIONS menu.

 

 

13-2

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Furuno GP-1850DF, GP-1850F manual Replacement of Fuse, Battery, Simple Troubleshooting, 13-2, Simple troubleshooting plotter
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GP-1850F, GP-1850DF specifications

Furuno is renowned for its high-quality marine electronics, and the GP-1850DF and GP-1850F are no exceptions. These advanced GPS chart plotters are designed to meet the needs of both professional mariners and recreational boaters alike.

The GP-1850DF is equipped with a powerful 12-channel GPS that provides fast and accurate positioning information, while the GP-1850F features a sturdy built-in fish finder, making it ideal for anglers. Both units boast a brilliant color display that enhances visibility in various lighting conditions, ensuring that users can easily read information on the screen, even in direct sunlight.

One of the standout features of these models is their compatibility with a variety of chart formats, including C-MAP, and Furuno’s proprietary raster charts. This flexibility allows users to choose from a broad range of navigational charts, catering to specific regional needs and preferences. The intuitive interface of the GP-1850 series simplifies navigation, offering menu-driven commands and support for multiple languages.

Furuno has integrated advanced sonar technology in the GP-1850F model, including a high-resolution fish finder capable of detecting fish signatures with remarkable precision. The dual-frequency capabilities enable users to switch between higher frequencies for shallow water fishing and lower frequencies for deeper waters. This enriches the fishing experience while improving catch rates.

Moreover, both devices feature a built-in waypoint register, allowing users to store up to 1,000 waypoints, which can be essential for returning to promising fishing spots or navigating back to port. The navigation functions also include routes and track recording, empowering boaters to create custom paths and review their previous journeys.

The GP-1850 series also places a high emphasis on safety, incorporating features like man overboard (MOB) alarms and route alarms to enhance on-water safety. Additionally, they are designed to withstand the harsh marine environment, with waterproof housings that ensure durability during adverse weather conditions.

In conclusion, the Furuno GP-1850DF and GP-1850F models provide an exceptional combination of performance, reliability, and user-friendly features, making them a preferred choice for both fishermen and navigators. Their adaptability in various maritime situations, alongside advanced technologies, cements their reputation as essential tools for successful and safe voyages on the water.
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