Furuno RP-25, Руководство оператора

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3. MAINTENANCE (FOR TECHNICIANS)
3-2
3.2 Replacement 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
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.
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.
CAUTION
Be sure the battery is inserted "plus" side
up to prevent damage to card and equipment.
Lithium
battery
JP1
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.