Furuno RP-25 manual Replacement of Battery on RP Board, Do not open the equipment

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3. MAINTENANCE (FOR TECHNICIANS)

3.2Replacement of Battery on RP Board

The RP Board is mounted in the display unit of the FR-2805 series radars. For general maintenance and trouble shooting, therefore, refer to radar’s operator’s manual. The only maintenance required for the RP-25 is the replacement of the battery on the RP-Board.

A lithium battery on the RP Board preserves RP-25 data when power is off. The life of the battery is about three years. When the radar self-test shows low battery voltage, have the battery replaced at your earliest convenience, so that important data will not be lost.

Before replacing the battery, save data to a RAM card, if necessary.

DANGER

Do not open the equipment.

High voltage which can shock, burn or cause death exists inside the equipment. Do not work inside the equipment unless familiar with electrical circuits.

Turn off the power at the mains switchboard before begining the installation.

Post a sign near the switch to indicate it should not be turned on while the equipment is being installed.

Fire, electrical shock or serious injury can result if the power is left on or is applied while the equipment is being installed.

CAUTION

Be sure the battery is inserted "plus" side

up to prevent damage to card and equipment.

JP1

Lithium battery

Name	Type	Code No.

Lithium battery	ER3S	000-127-759

1.Turn the radar off, and then dismount the RP Board from the display unit. Lay the board on insulating materials.

2.Cut jumper wire JP1. This cuts off the battery circuit.

3.Replace battery.

4.Attach jumper wire JP1.

5.Remount the RP Board to the display unit.

3-2

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Contents Video Plotter 00080745701 Safety Instructions Word to RP-25 Owners FeaturesForword Iii Your 2805 spec Radar map Video plotterTable of Contents Initial Settings Key panel right side Radar MAPKeys for radar map Preparation Radar map menuEnter mark menu Making a Radar MapSelecting the entering way Enter Mark menu on selecting L/L Shapes for linesLongitude/Latitude OWN Ship Posn Positon Erasing Contents of the Radar Map Position and bearing correction Radar map correctionCursor data correction Releasing the radar map correctionVideo Plotter OverviewKeys for video plotter Selecting DisplaysTrue motion automatic return Display modesSample video plotter display Card slot location Chart CardsDisplaying chart cards Chart position correction Canceling chart correctionAdding correcting value to cursor data Video plotter 2 menuSetting up the Video Plotter Setting the navigation dataHiding/showing graphics Display select menuNav information 1 menu Nav information 2 menu Nav information 3 menuTrack Recording the own ship’s trackOwn track plot interval and storage time Own ship plot, target plot menuOther target plot interval and storage time Recording other ship’s trackSmoothing Erasing track Erase menuSelecting method of entry Marks, LinesEntering mark Selecting mark Entering line Entering independent linesErasing marks/lines on a area Erasing Marks, LinesErasing individual marks/lines Erasing all marks Waypoints Entering waypointsEntering waypoints by the cursor Enter wpt, nav line menuWaypoint list Entering waypoints at own ship’s positionWPT List Enter WPT, NAV Line Wpt list menuWay point menu on selecting video plotter Displaying a waypointInternal storage waypoint External waypoint Way point menu on selecting navigationNavigation Lines Entering navigation lineEntering new navigation line Enter nav line menuRemoving waypoints from navigation lines Navigation line listAdding waypoit to navigation lines Deleting all navigation lines Deleting navigation linesDeleting individual navigation lines Setting up the navigation lines Nav line menu Video plotter modePress the Enter key Press the NAV Menu key to close the menu Recording and Replaying Data Displaying navigation linesFormatting memory RAM card Internal navigation linesRecording data Record card menuReplaying data Replay card menuVideo plotter initial setting menu Maintenance for TechniciansInitial Settings Replacement of Battery on RP Board Do not open the equipmentMenu Tree AP-1AP-2 Latitude Error Table on 96 NM Range AP-3Specifications SP-1