Sony GV-300 - Manual (Page 36)

Maintenance
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To ensure a clear picture, clean the video heads periodically.
If playback pictures are noisy or hardly visible, the video heads
may be contaminated. In this case, clean the video heads with
the Sony V8-25CLH cleaning cassette (not supplied)
according to the instructions.
Caution
Do not use commercially available wet-type cleaning cassettes.
They may damage the video heads.
Note
If the V8-25CLH cleaning cassette is not available in your area, consult your Sony service facility.
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When playback pictures are not clear even after using the cleaning cassette, the video head may
be damaged. In this case, the video head needs to be replaced with a new one. Consult your
Sony service facility for replacing the video head.
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A built-in lighting system is assembled inside the liquid crystal screen of this unit. The life of the
small fluorescent tube used for this built-in lighting system runs out over a period of use. If the
lamp becomes dimmer or goes off immediately after you turn it on, even with new batteries,
replace the lamp with a new one. To replace the lamp, consult the dealer where you purchased
the unit, or a Sony service facility. The expected life of the small fluorescent tupe is about three
years if this unit is used for an hour each day. When you use this unit in a cold environment, the
fluorescent tube will be dimmer at first. As soon as the temperature of the tube rises, it will regain
its original brightness.
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• Do not push the display forcibly.
• Do not operate the unit where the temperature is below 0®C (32®F) or above 40*C(104°F).
• If the unit is used in a cold place, a residual image may appear on the screen. This is not a
malfunction of the unit.
• Constant bright points of light (red. blue, or green) may appear on the screen. This is not a
malfunction of the unit.
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Notes on Moisture Condensation
If this unit is brought directly from a cold place to a warm place, moisture may condense inside
the unit or on the surface of the tape. If this happens, the tape may stick to the head drum,
damaging both the tape and the unit. Although this unit is furnished with a moisture sensor to
prevent possible damage from condensation, do not leave the tape inside the unit.
The “DEW” indication appears on the screen.
In this case, no button will function except the EJECT button.
(However, if you have been watching a TV program, you can
continue to do so )
Eject the cassette, turn off the unit and leave the cassette holder
open at least for an hour.
The unit can be used again if the DEW indication does not appear when one of the tape transport
buttons is pressed.
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