Sony TC-K890ES - Maintenance Ics Isccisci Eccccctescccsnes Coll Siectcecieedhedl Actu Scedesnesdhiceuses; Cleaning the Heads and Tape Path; Ec Essceeseeee; Demagnetizing the Heads

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WEVianaclarelarers,
Cleaning the Heads and Tape Path
Clean all surfaces over which the tape travels after every ten
hours of operation to guard against:
— low-quality sound
—— a decrease in sound level
— excessive wow, flutter or drop-out
— incomplete erasure
— impairment of recording function
To obtain high-quality recorded sound, cleaning before every
recording is recommended.
1 With the unit turned off, hold down 4 and press the
POWER switch. This causes the holder to open, the
heads to rise and the pinch rollers to rotate.
2 Wipe the heads, the pinch rollers and the capstans
with a cotton swab slightly moistened with alcohol or
a commercially available cleaning fluid for tape decks.
Clean the entire surface of the pinch rollers and capstans
while they are rotating, making sure that the cotton swab
does not get caught in the mechanism.
Erasing head
Recording head
Playback head
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3 When completed, press & again.
Do not insert a cassette until the cleaned areas are
completely dry.
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After 20 to 30 hours of use, or when you notice hiss and/or
loss of high frequencies, the residual magnetism built up on
the heads should be removed.
1 With the unit turned off, hold down & and press the
POWER button to open the holder. Confirm that the
heads have risen, then press the POWER button
again.
2 Demagnetize the heads with any commercially
available demagnetizer.
Refer to the instruction manual of the demagnetizer for
detailed instructions.
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Clean the cabinet, panel and controls with a soft cloth slightly
moistened with a mild detergent solution.
Do not use any type of abrasive pad, scouring powder or
solvents such as alcohol or benzine.
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