Troubleshooting - Furuno 1751 Operator's Manual

5. TROUBLESHOOTING
This section provides troubleshooting information for the user and the service technician.
TO THE USER: If something appears to be wrong with your unit, check it by referring to
the "Basic Troubleshooting" section. If you cannot restore normal operation, contact your
Furuno dealer or qualified technician.
DANGER
ELECTRICAL SMOCK HAZARD
This equipment uses high voltage electricity which can endanger human life.
At several places in the unit there are high vottages sufficient to kill anyone
Corning in direct contact with them. While the equipment has been designed
wlfh consideration for the operator's safety, precautions must aiways be
^ercised when reaching inside the equipment for the purpose of main-
tenance and/or service. Oniy personnel totaiiy famiiiar with electricai circuits
and service manual should work inside the display unit or scanner unit.
TO THE SERViCE TECHNiCiAN: AIways make sure that the electricai power
is turned off before attempting to change a component or inspecting the
inside of the equipment. A residual charge may also exist in capacitors, even
with the equipment turned off. Therefore, aiways short all supply lines to the
chassis with an Insulated screwdriver or a slmilar tool before touching the
Circuit.
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WARNING: RADIO FREQUENCY (RF) RADIATION HAZARD
This radar scanner emits high frequency radio radiation which can be harmjul, particularly
to your eyes. Never look directly into the scanner from a distance of less than twofeet when
the radar is in operation as you could injure the comea of your eyes. Aiways make sure that
the radar is set to either Stand-By or OFF before starting work on the scanner.
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