Notes On Use; Notes On The Videocassette Recorder; Cleaning Of The Video Heads - Sony HVRM25AU - Professional Video Cassete recorder/player Operating Instructions Manual

Notes on Use

Notes on the Videocassette
Recorder
Do not use the unit in a place subject to direct
sunlight or heat sources
If you do, its cabinet, mechanical parts, etc., may be
damaged.
Do not place the unit in humid places
Do not place the unit in places where they may be
exposed to water-splash or to humidity. Do not place
water-filled containers or vases on the unit. Doing so
may cause the unit to malfunction.
Do not use the unit in an extremely hot place
If the unit is left in a car parked with the windows closed
(especially in summer), its cabinet, mechanical parts,
etc., may be damaged or it may not work correctly.
If the unit is brought directly from a cold to a
warm location
Moisture may condense inside the unit and cause
damage to the video heads and tape. If you use the unit
in a place subject to direct cold currents from an air
conditioner, moisture may also condense inside the unit.
Do not place a heavy object on the unit
The cabinet, mechanical parts, etc., may be damaged, or
the unit may not work correctly.
Do not handle the unit roughly
Avoid rough handling or mechanical shock to the unit.
To avoid damaging the cabinet's finish
Plastic is often used for the surface finishing of the unit.
Do not spray a volatile solvent such as an insecticide
toward the cabinet or place rubber or vinyl products on
the cabinet for a long time. If you do, the finish of the
cabinet may be damaged or the coating may come off.
Do not clean the cabinet with thinner or
benzine
The cabinet may be damaged or its coating may come
off. When you use a chemical-impregnated cloth, use it
according to its directions.
Clean the cabinet with a soft dry cloth
When the cabinet is very dirty, clean it with a soft dry
cloth lightly moistened with a mild detergent solution
and finish it with a dry cloth.
Do not put magnetic objects close to the unit
Magnetic fields may damage the recording.
92
Chapter 6 Maintenance
To prevent electromagnetic interference
caused by radio communication equipment
such as cellular phones, transceivers, etc.
The use of radio communication equipment such as
cellular phones or transceivers near the unit may cause
a malfunction and can affect the audio/video signals.
Cellular phones or transceivers near the unit should be
switched off.
Do not use the unit in an area exposed to
radiation
A malfunction may occur.
Checking the video heads every 1000 hours
A VCR is a high-precision piece of equipment that
records and plays back the picture recorded on a
magnetic tape. In particular, the video heads and other
mechanical parts may become dirty or worn. To
maintain a clean picture, we recommend maintenance
every 1000 hours, even though the conditions of use
may differ, depending on temperature, humidity, dust,
etc.
Connecting other equipment
When you connect the unit to other equipment or a
computer using an i.LINK cable, confirm the direction
of the jack. If you forcibly insert the jack, the terminal
may be damaged or cause the unit to malfunction.

Cleaning of the Video Heads

With clogged video heads, the unit cannot record
properly. Clean the video heads to prevent noise on the
recorded picture or audio. For cleaning, use the supplied
cleaning cassette.
Before recording an important event
The unit cannot record properly with clogged video
heads. To ensure normal recording and clear pictures
and sound, clean the video heads before recording an
important event.
Every 50 hours
If you repeat the tape transport operation, the video
heads will become dirty and coated with fine dirt or
dust. Clean the heads every 50 hours.
After using a tape prone to clog the heads
If using such a tape causes the symptoms illustrated
below, clean the heads.