Fuse Replacement; Troubleshooting - Furuno BR-500 Operator's Manual

3. MAINTENANCE, TROUBLESHOOTING
3.2

Fuse Replacement

The fuses on the PWR Board (24P0105) inside the Processor Unit protect the system
from overvoltage and overcurrent. If the power is not on, have a technician check for
blown fuse(s). If a fuse(s) has blown, replace the fuse(s) with one of the same rating.
If the fuse(s) blows again, contact your dealer.
Name
Fuse
Fuse
3.3

Troubleshooting

If the equipment appears to be abnormal, follow the procedure in the table below to
try to restore normal operation. If you cannot restore normal operation, do not check
inside the equipment. Get a qualified technician to check the equipment.
The Main Alarm Panel is not
powered.
A key on the Main Alarm
Panel is operated, but there
is no response.
The results of the ROM and
RAM test for the Main Alarm
Panel or Processor Unit
show an NG (No Good).
An alarm is not sent to a
Cabin Panel.
The message "Failure: Com-
munication" appears and the
buzzer sounds.
The message "Failure: DC"
(or "Failure: AC") appears
and the buzzer sounds.
3-2
WARNING
Use the proper fuse.
Use of a wrong fuse can result in
damage to the equipment or cause fire.
Type
FGMB 250V 2A PBF
FGMB 250V 3A PBF
Problem
• Check if the Processor Unit is ON.
• Check if the power cable is properly connected.
• Check if the power cable is damaged or corroded.
• Check the connection between the Processor Unit
• Have a qualified technician check if a fuse(s) inside
Reset the power and operate the key. If the key does not
respond, request service.
Reset the power. If NG appears again, request service.
Do the procedure in section 3.4 to check the connnec-
tions.
The message indicates communication error between
Main Alarm Panel and Processor Unit. Press any key to
silence the buzzer. Reset the system. If the problem still
occurs, request service.
The message indicates power failure of corresponding
power. Press any key to silence the buzzer. Check the
power supply.
Code No.
000-157-497-10
000-157-568-10
Remedy
and the Main Alarm Panel.
the Processor Unit has blown.
Qty
2
1