How To Replace Fuses; Battery On The Mother Board - Furuno FSV-25 Operator's Manual

8.3

How to Replace Fuses

The processor unit, transceiver unit and hull unit carry fuses that protect the system
from overvoltage and equipment fault. If the power cannot be applied, check the fol-
lowing.
• Check the fuse in the processor unit.
• Check the breaker in the power supply unit.
• Check the breaker in the transceiver unit. (The breaker is behind the lid front bottom
corner.)
Find the cause before replacing a fuse. If the fuse blows again after replacement, con-
tact your dealer for advice.
Unit
Processor unit
Transceiver unit*
Hull unit*
* Request serviceman to replace fuse.
8.4

Battery on the Mother Board

The lithium battery on the Mother Board in the processor unit backs up data. When the
voltage is too low, the processor unit will not start.
Name
Lithium battery
Note 1: Check the voltage regularly by doing the [Operation Test], on page 8-12.
When the voltage is 2.9 V or less, the error code 322 appears. Have a qualified tech-
nician replace the battery.
Note 2: Dispose of the battery in accordance with local regulations. Tape the + and -
terminals of the battery before disposal to prevent short circuit, which could cause a
fire.
Type
FGBO1 250V 20A
FGBO1 250V 10A PBF
FGMB 250V 3A PBF
D52-8A
FGMB 250V 10A PBF
FGMB 250V 2A PBF
FGMB 250V 1A PBF
WARNING
Use the proper fuse.
Use of a wrong fuse can cause fire or damage
the equipment.
Type
ER3WKP
8. MAINTENANCE, TROUBLESHOOTING
Code No.
000-155-775-10 For 12 VDC
000-155-787-10 For 24 VDC
000-157-568-10 Internal DC voltage,
2 pcs.
000-178-350-10 Internal B voltage,
1 pc.
000-157-495-10 Internal B voltage,
2 pcs.
000-157-497-10 HCTL board,
26 VDC/100 VAC,
3 pcs.
000-157-496-10 Breaker output, 2
pcs.
Code No.
000-177-013-10
Remarks
Life
7 years
8-5