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AL-E77BK
|
Troubleshooting
@ Trouble with Tonearm Movement (Trouble in Lowering Down/Lifting Up
Points and Tune Selection Sensitivity
Phenomena
1. The end section of the tune before the designated tune
is played back, or the beginning of the designated tune
is not played back.
2. The tonearm
is raised in the middle of the tune, or the
beginning of the next tune is played back.
3. A tune other than the designated tune is played back,
or playback is done from the middle of a tune.
4. More
or less tunes
are programmed
than the actual
number of tunes on the record.
5. The tonearm is lowered down in the position of a 30 cm
(12") record when a 17 cm (7") record is loaded.
6. The tonearm is lowered down in the position of a 17 cm
(7") record when no record is on the platter.
Causes
¢
Phenomenon
1
1. When the record has too narrow non-recorded sections
between tunes.
2. When the record has too short recorded sections.
3. When the stylus is bent.
4. When the record is eccentric or has too large a center
hole.
5. When the record surface has different reflectivity due to
scratches or dusts.
S
QL-G90B
L-E50B
Fig. 11
1-8 (No. 2896)
Phenomenon
2
1. When the offset is misadjusted . Adjust the offset again.
1.
. When
the record has varying
Phenomenon
3
. When the record has too large
a pitch in the groove where the
sound is recorded.
Pdiust
ser
tune
selection sensitivity
pitch in the groove where the
aes
sound is recorded.
Phenomenon
4
. When the sensor select knob is not set to the optimum
position.
Phenomenon
5
. When the detection sensitivity of the sensor is too low.
. When the edge of the platter is dusty.
Phenomenon
6
When the platter mat is placed upside down.
Note:
The platter mat of this unit is similar to previous models
(QL-G90B,
L-E50B).
Check
it referring to the figure
below.
Reflection board.
L-E30B
AL-E77BK
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