Sony TC-K511S - Recording and Playback Problems; Noise and Interference

Troubleshooting Guide
(Continued from previous page.)
Recording and Playback Problems
Symptom
Recording or playback cannot be made or
there is a decrease in sound level.
Cause
The heads are either dirty or magnetized.
Remedy
Clean or demagnetize the heads
(page 21).
Improper connection.
Make connections properly (page 5).
Improper setting of the amplifier controls.
Set the amplifier controls to the appropriate
positions.
Excessive wow, flutter or drop-out.
The head, capstan or pinch roller is dirty.
Clean in accordance with instructions on
page 21.
Incomplete erasure.
The erasing head is dirty.
Clean the erasing head (page 21).
Increased noise or poor reproduction in
high frequencies.
The heads are magnetized.
Demagnetize the heads (page 21).
Unbalanced tone in high frequencies.
Improper setting of the DOLBY NR switch.
During playing back, set the switch to the
same position used in recording.
The unit is placed near a television set.
Move the unit away from the television set.
The desired selection cannot be located
even though you activate the Multi-AMS.
There is noise in the space between
selections.
The space is less than four seconds long.
The BB ( or <4) button was pressed
immediately before the beginning of the
following selection.
Rerecord the tape if you can, and insert a
blank space of four seconds using the O
button (page 20).
Playback begins in the middle of the
selection when the Multi-AMS is activated.
The selection contains one of the following:
— along pause in the music
— apassage of low frequencies or very
low volume
— a gradual increase or decrease in
volume.
While the tape is playing, press the BB or
<4 button again.
Symptom
Hum noise.
Cause
The unit is stacked on or under the
amplifier.
Remedy
Separate the unit.
Noise is recorded.
The recording was made near equipment
such as a television set or a color monitor,
and interference has affected the recording
on the tape and the Dolby NR system.
Move the unit away from the television set
or color monitor.
Sony Corporation Printed in Japan