8. MAINTENANCE & TROUBLESHOOTING
48
LOW VOLTAGE! Power source voltage
too low.
ODOMETER ALARM! Odometer distance
alarm violated.
RAM ERROR! Request service.
ROM ERROR! Request service.
RTC ERROR! Request service.
SPEED ALARM! Speed alarm violated.
TIME ALARM! Time alarm violated.
TRIP ALARM! Trip distance alarm
violated.
NO WAAS SIGNAL! WAAS/DGPS alarm
violated. *2
NO WAAS/DGPS
SIGNAL!
WAAS/DGPS alarm
violated. *3
XTE ALARM! XTE alarm violated.
*1 = WAAS/DGPS mode: INT/EXT BEACON
*2 = WAAS/DGPS mode: WAAS
*3 = WAAS/DGPS mode: AUTO
8.3 Replacing the Fuse
The fuses (type: FGMB 125V 1A PBF, code
no.: 000-157-478-10) in the power cable (+/-
lines) protects the equipment from
overcurrent, reverse polarity of the power
source and equipment fault. If the fuse blows,
find the cause before replacing the fuse. If the
fuse blows again after replacement, request
service.
WARNING
Use the proper fuse.
Use of a wrong fuse can result in damage
to the equipment.
8.4 Replacing the Battery
A lithium battery (type: CR2354-1F2, code
no.: 000-142-305) on the circuit board inside
the display unit preserves data when the
power is turned off. The life of the battery is
3-5 years. When its voltage is low, the
message shown below appears and data is
transferred from the RAM to the flash
memory.
BATTERY ALARM!
INTERNAL BATTERY
VOLTAGE IS LOW.
REPLACE BATTERY.
PUSH ENTER KEY TO
BACKUP WPTS,
ROUTES & TRACKS.
Low battery voltage warning
When this message appears, all open
windows are closed, no alarm will be
generated and no key input other than the
[ENT] key is accepted. Press the [ENT] key to
back up data and then turn off the power.
Contact your dealer to request replacement
of the battery. Below is the procedure for
replacing the battery.
1. Turn on the power and then press the
[MENU] key once or twice to open the
menu.
2 Choose SYS SETUP and then press the
[ENT] key.
SYSTEM SETUP
LANGUAGE : ENGLISH
DATUM : WGS84
UNITS : nm, kt
TIME DIFF : +00 : 00
TIME DISP : 24HOUR
TEST?
SIMULATOR?
EXCHANGE BATTERY?
SYSTEM SETUP menu
3. Choose “EXCHANGE BATTERY?” and
then press the [ENT] key. The display
shows the following message.
ARE YOU SURE?
YES NO
EXCHANGE
BATTERY?
Exchange battery prompt
4. Press ◄ to choose YES and then press
the [ENT] key. The following display
appears.
