4. MAINTENANCE, TROUBLESHOOTING

4.6Replacement of Battery

The display unit and processor unit have a battery which stores data when the power is turned off. When the battery voltage is low the message “BATTERY!” appears on the display. Open the message display, by pressing the [MENU] key and choosing “MESSAGES”, to find out which battery’s voltage is low. Have a qualified technician replace the battery, following the procedure below. The life of the batteries is 3-5 years.

Battery Location

Type

Code No.

Display Unit

TZ6580553A

000-139-951

Processor Unit

CR2450-F2ST2

000-133-495

1.Press the [MENU] key to open the menu.

2.Choose SYS SETUP and press the [ENT] key.

3.Choose EXCHANGE BATTERY? And press the [ENT] key.

DISPLAY UNIT

PROCESSOR UNIT

Battery exchange options

4.Choose DISPLAY UNIT or PROCESSOR UNIT as appropriate and press the [ENT] key.

EXCHANGE BATT?

(DISPLAY UNIT)*

ARE YOU SURE?

YES NO

* Or processor unit

Prompt for exchanging battery

5.Press to choose YES and press the [ENT] key. The following message appears.

READY FOR

BATTERY CHANGE.

TURN OFF THE

UNIT.

Prompt for turning off the power

6.At this time the contents of the RAM are temporarily moved to the flash memory. Turn off the power.

7.Have a qualified technician replace the battery.

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Furuno SC-120 manual Replacement of Battery, Battery Location Type Code No, Battery exchange options