3. MAINTENANCE, TROUBLESHOOTING

3.2 Replacing the Fuse

The 6A fuse inside the Loud Hailer protects it from reverse polarity and equipment fault. If the power cannot be turned on, the fuse may have blown. Have a qualified technician check the fuse.

WARNING

Use the proper fuse.

Use of a wrong fuse can result in damage to the equipment or cause fire.

3.3 Troubleshooting

Below are simple troubleshooting procedures which the user may follow to try to restore normal operation. If normal operation cannot be restored, do not attempt to check inside any unit. Any repair work is best left to a qualified technician.

Troubleshooting table

If…

Then…

power cannot be turned on

check that the power cable is tightly connected.

 

fuse may have blown. Have a qualified technician

 

check the fuse.

you cannot hear voice from an intercom

adjust the [LISTEN VOL] control.

station

 

output volume is too low

adjust the [HAIL VOL] control.

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Furuno LH-3000 manual Replacing the Fuse, Troubleshooting table, If… Then…