Furuno 841, 821 Maintenance & Troubleshooting, Safety Information, Forming any maintenance or

4.MAINTENANCE & TROUBLESHOOTING

This chapter tells you how to keep your ra- dar in good working order. Before review- ing this chapter please read the safety information which follows.

4.1 Safety Information

		ELECTRICAL
	WARNING
		SHOCK
		HAZARD
		This equipment
		uses high voltage
		electricity which
Hazardous voltages.
		can shock, burn or
Can shock, burn or		cause	death.
cause death.
Only qualified person-		While the equip-
		ment has been de-
nel should work inside		signed	with
the units of the radar.
		consideration for
		the operator ’s

safety, precautions must always be exercised when reaching inside the equipment for the purpose of maintenance or service. For this reason, only qualified personnel totally fa- miliar with electrical circuits and service manual should work inside the display unit or scanner unit.

RF RADIATION HAZARD

The radar scanner emits high fre- quency radio radiation which can be harmful, particularly to your eyes. Never

look directly into the scanner from a distance of less than two feet when the radar is in operation as you could injure the cornea of your eyes. Always make sure the radar is set to stand-by or is turned off before start- ing work on the scanner unit.

	Turn off the power before per-
!	forming any maintenance or
	troubleshooting procedure.

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