Sony GV-S50 - Manual (Page 38)

other Information
Maintenance
Main Unit
' When the unit is not used for a long period of time, periodically turn on the power and play back a tape
for about three minutes.
Clean the cabinet with a dry, soft cloth, or a soft cloth lightly moistened with a mild detergent solution.
Do
not use any type of solvent which may damage the finish.
Video Head Cieaning
To ensure a dear picture, dean the video heads periodically.
If playback pidures are noisy or hardly visible, the video heads may be contaminated. If this happens,
clean the video heads with the Sony V8-25CLH cleaning cassette (not supplied) referring to the
instrudions supplied with it.
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.
Video Head Replacement
When playback pictures are not dear even after using the cleaning cassette, the video head may be
damaged. If this happens, the video head needs to be replaced with a new one. Consult your Sony
service fadlity for repladng the video head.
Built-in Lighting System
A built-in lighting system is installed inside the liquid crystal screen of this unit. Eventually the small
fluorescent tube used for this built-in lighting system wears out. If the tube becomes dim or goes off
immediately after you turn on the unit, even with new batteries, replace the tube with a new one. To
replace the tube, consult the dealer where you purchased the unit, or a Sony service facility. The expeded
life of the small fluorescent tube 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.
LCD
’ Do not push the display forcibly.
’ If the unit is used in a cold place, a residual image may appear on the screen. This is not a maHundion
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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