JVC GR-DF450 Dirty heads can cause the following, Problems, About moisture condensation

64 EN	CAUTIONS
		How To Handle A CD-ROM (GR-DF470/450
● Dirty heads can cause the following
problems:		only)
		● Take care not to soil or scratch the mirror surface
		(opposite to the printed surface). Do not write
		anything or put a sticker on either the front or back
		surface. If the CD-ROM gets dirty, gently wipe it
... No picture during playback.
		with a soft cloth outward from the center hole.
... Blocks of noise appear during playback.
		● Do not use conventional disc cleaners or cleaning
... During recording or playback, the Head Clog
		spray.
Warning indicator “ ” appears.
		● Do not bend the CD-ROM or touch its mirror
... Recording cannot be performed properly.
		surface.
In such cases, use an optional cleaning
		● Do not store your CD-ROM in a dusty, hot or
cassette. Insert it and play back. If the cassette		humid environment. Keep it away from direct
is used more than once consecutively, damage		sunlight.
to the video heads may result. After the
		About moisture condensation
camcorder plays back for about 20 seconds, it
stops automatically. Also refer to the cleaning		● You have observed that pouring a cold liquid
cassette’s instructions.		into a glass will cause drops of water to form on
		the glass’ outer surface. This same
If, after using the cleaning cassette, the
		phenomenon occurs on the head drum of a
problems still exist, consult your nearest JVC
		camcorder when it is moved from a cool place
dealer.
		to a warm place, after heating a cold room,
Mechanical moving parts used to move the
		under extremely humid conditions or in a place
video heads and video tape tend to become
		directly subjected to the cool air from an air
dirty and worn out over time. In order to maintain
		conditioner.
a clear picture at all times, periodic check-ups
		● Moisture on the head drum can cause severe
are recommended after using the unit for about		damage to the video tape, and can lead to
1,000 hours. For periodic check-ups please		internal damage to the camcorder itself.
consult your nearest JVC dealer.
		Serious malfunctioning
		If malfunctioning occurs, stop using the unit
		immediately and consult your local JVC
		dealer.
		The camcorder is a microcomputer-controlled
		device. External noise and interference (from
		a TV, a radio, etc.) might prevent it from
		functioning properly. In such cases, first
		disconnect its power supply unit (battery pack,
		AC Adapter, etc.) and wait a few minutes and
		then re-connect it and proceed as usual from
		the beginning.