JVC GR-DV600 ユーザーズマニュアル

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5. Dirty heads can cause the following problems:
• No picture during playback.
• Blocks of noise appear during playback.
• During recording or playback, the Head Clog 
Warning indicator “
” appears.
• Recording cannot be performed properly.
In such cases, use an optional cleaning cassette. 
Insert it and play back. If the cassette is used more 
than once consecutively, damage to the video heads 
may result. After the camcorder plays back for about 
20 seconds, it stops automatically. Also refer to the 
cleaning cassette’s instructions.
If, after using the cleaning cassette, the problems still 
exist, consult your nearest JVC dealer.
Mechanical moving parts used to move the video 
heads and video tape tend to become dirty and 
worn out over time. In order to maintain a clear 
picture at all times, periodic check-ups are 
recommended after using the unit for about 1,000 
hours. For periodic check-ups please consult your 
nearest JVC dealer.
How To Handle A CD-ROM
•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 
with a soft cloth outward from the centre hole 
using a circular motion.
•Do not use conventional disc cleaners or cleaning 
spray.
•Do not bend the CD-ROM or touch its mirror 
surface.
•Do not store your CD-ROM in a dusty, hot or 
humid environment. Keep it away from direct 
sunlight.
Serious malfunctioning
About moisture condensation...
● You have observed that pouring a cold liquid 
into a glass will cause drops of water to form on 
the glass’ outer surface. This same phenomenon 
occurs on the head drum of a camcorder when 
it is moved from a cool place to a warm place, 
after heating a cold room, under extremely 
humid conditions or in a place directly 
subjected to the cool air from an air conditioner.
● Moisture on the head drum can cause severe 
damage to the video tape, and can lead to 
internal damage to the camcorder itself.
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.
GR-DV700PAL.book  Page 72  Friday, February 21, 2003  4:04 PM