Sony VPH-V20M - Manual (Page 7)

Overview
7
On cleaning
• To keep the cabinet looking new, periodically clean it with a soft cloth.
Stubborn stains may be removed with a cloth lightly dampened with a
mild detergent solution. Never use strong solvents, such as thinner or
benzene cleansers, since these will damage the cabinet.
• Avoid touching the lens. To remove dust on the lens, use a soft dry cloth.
Do not use a damp cloth, detergent solution, or thinner.
On CRT burns
When a static picture of a VCR or a computer is displayed for more than
about one hour, a CRT burn may result. This means that an after-image
impression of the static picture remains on the screen even after the picture
has changed. If it is necessary to display the same static picture for more
than one hour, we recommend that you set the CONTR (contrast) control
to the lowest setting.
Also, when a picture of different size is displayed beyond a certain length
of time, an after-image impression of the frame of smaller picture may be
burnt on the screen (such as displaying a 16:9 picture on a 4:3 screen.) To
avoid this, we recommend that you use the same picture size when
possible. However, if it is necessary to use a different picture size, set the
CONTR (contrast) control and the BRT (brightness) control of the smaller
picture to the lowest setting possible. This will minimize the risk of
creating an after-image impression.
If the CRT burns, it must be replaced. In this case, refer to the warranty
provided with this unit. Consult your Sony dealer or Qualified Service
Personnel.
On repacking
Save the original shipping carton and packing material; they will come in
handy if you ever have to ship your unit. For maximum protection, repack
your unit as it was originally packed at the factory.