Cleaning; Cleaning Using Cleaning Tape; General Information For Cleaning Using Cleaning Cloth - Sony DNW-A75 Maintenance Manual

5-2. Cleaning

To make the most of the functions, fully realize the performance of this unit, and to
lengthen the life of the unit and tape, clean the components often.

5-2-1. Cleaning using Cleaning Tape

If the video heads are clogged, clean the video head as the following procedure.
Make sure to use the specified cleaning tape. If other tape is used, unusual abrasion
or damage of the video heads may occur.
Specified cleaning tape:
Procedure
1. Insert the cleaning tape BCT-5CLN into the unit.
2. Press the EJECT and PLAY buttons simultaneously.
The cleaning tape is played back for approx. ten seconds. After that, the clean-
ing tape will be ejected automatically.
m
. If the cleaning tape is not ejected after playing back more than ten seconds,
press the EJECT button immediately to eject the cleaning tape.
. Do not fast-forward or rewind the cleaning tape and leave it into the unit in
the STOP mode to avoid damage to the video head.
3. Check to see that the head clogging is clear.
If the video heads are still clogged after cleaning using a cleaning tape, clean them
using a cleaning cloth. (Refer to Section 5-2-3.)

5-2-2. General Information for Cleaning using Cleaning Cloth

1. Cautions
. Be sure to turn the power off before cleaning.
. Each block in the mechanical deck consists of a precision part and is adjusted
precisely. Be careful not to damage each part and to apply an excessive force
during cleaning.
. Do not contact the greased portions during cleaning. If the grease smears to a
cleaning cloth, use a new cloth to avoid allow the grease to contact places where it
should not.
. Do not insert a cassette tape before a cleaning fluid completely evaporates after
cleaning.
2. Preparation
1. Turn off the power.
2. Remove the upper lid. (Refer to Section 2-3-1.)
3. Remove the plate MD assembly. (Refer to Section 2-4.)
4. Remove the cassette compartment. (Refer to Section 2-5.)
DNW-A75/A75P
BCT-5CLN
5-2. Cleaning
5-5