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Audio input impedance
Condensation
Condensation occurs due to the same principle involved
when droplets of water form on a window pane of a heated
room. It occurs when the unit or tape is moved between
places where the temperature or humidity varies greatly or
when, for instance:
•It is moved to a very humid place full of steam or a room
immediately after it has been heated up.
•It is suddenly moved from a cold location to a hot or humid
location.
When moving the unit to locations such as these, leave it
standing for about 10 minutes rather than switching on the
power immediately. If condensation occurs in the unit, “E-20”
will flash on the counter display and the cassette will be
automatically ejected.
Leave the unit with the power on until “E-20” is cleared from
the display.
Maintenance
Unit cleaning
Before starting any maintenance work, switch the power to
OFF and, holding the plug, unplug the cord from the socket.
Use a soft cloth to clean the outside of the unit.
For stubborn dirt or stains, wipe the unit with a cloth that has
been lightly dampened with well-diluted kitchen detergent
and wrung out thoroughly.
After wiping off the dirt with the damp cloth, finish it off
with a dry cloth.
Note:
Do not use alcohol, benzene, thinners or any other
solvents as they may affect the color of external parts
or damage the unit’s coating.
Video head cleaning
This unit is equipped with an auto head cleaning function
which automatically reduces the amount of dirt on the video
heads. However, in order to maximize the unit’s reliability, it
is recommended that the video heads be cleaned as and
when appropriate.
For further details on how to actually clean the heads,
consult with one of our service companies or with your
dealer.
Printed circuit board
F4 board (AVIO)
SW1
Switch no. Purpose of setting
SW1
AUDIO INPUT IMPEDANCE SW
For setting the audio input impedance of
channels 1 and 2
HIGH/600 Ω
The underlined items indicates the initial setting.