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Phenomenon
Cause
Countermeasur
Adjust stylus pressure to appropriate value.
Anti-skating device is not provided.
Mount the weight of anti-skating device on the
specified position.
A sharp, snapping sound is heard
during playing.
Dust sticks on disc.
Remove the dust.
'Small scratches are found on the entire disc.
Slightly reduce treble by use of amplifier tone
control,
The stylus tip of cartridge is worn out.
Replace the stylus by new one.
Dust stick on the stylus tip.
Remove the dust by use of soft brush.
Howling noise is heard when sound
volume is increased during playing.
The player is not installed on a stable place.
Install the player on a stable place.
Setting positions of the speaker and player is
improper.
This phenomenon is caused by that sound
pressure of speaker is directly applied to the
player.
Therefore, install the speaker and player on
appropriate places to prevent the sound
pressure of the speaker from being directly
applied to the player.
'A humming noise is heard during
playing.
Connection between player GND terminal and
amplifier GND terminal is imperfect.
Connect player GND terminal and amplifier GND
terminal perfectly.
Polarity of power plug is bad.
Insert the power plug in less-noise polarity.
Either of speakers produces no
sounds,
Connection between player output jack and
amplifier input jack is imperfect.
Fully insert pin plug of connection lead between
the player and amplifier.
Wiring between cartridge and head shell is
imperfect.
Perform wiring between cartridge and head shell
perfectly.
Both speakers produces no sounds.
Connection to amplifier is mistaken.
Tightening of head shell is imperfect.
Stylus skips while playing a disc.
The player is not installed on a stable place.
Connect player output cord with PHONO
input
terminal of amplifier.
Perfectly tighten head shell.
Install the player on a stable place.
Adjustment of stylus pressure is not appropriate.
Adjust the stylus pressure to appropriate value,
Anti-skating device is not provided.
Mount the weight of anti-skating device on the
specified pos
in.
Disc is deformed so heavily.
Replace the disc with new one.
Scratch is found on disc.
'Omit to play a scratched part or replace the disc
by new one.
Location of reproduced sounds is
not clearly felt.
Either channel on hot tip and earth tip is
reversed due to replacement of cartridge.
11
Perform wiring between cartridge and head shell
exactly.
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