Technics QUARTZ SL-7 - Page 10

Notes and maintenance
Turn down amplifier volume (preferably all the way) before
turning the power switch on (=) or off (m).
This protects your ears and the speakers from switching
noise.
Make sure the power switch is off before unplugging or
plugging in the AC cord.
Auto-return operation will not function if you press the
power switch while a record is being played.
The tonearm will rise above the record surface but stay
where it is.
Therefore, if you then press the switch again to turn it on, the
tonearm will go back to the start position.
Be sure to remove all dirt and dust from the stylus tip.
(Fig. 20.)
The cartridge stylus is an extremely delicate and precisely
manufactured device desiged for picking up the subtle
nuances of the record grooves. Therefore, be very careful
not to touch it or push on it or apply excessive force in any
way.
The stylus tip can not retain proper groove contact when it
is dirty. This causes bad sound reproduction and excess
wear on the stylus tip and grooves. Therefore, use the
accessory brush to remove dust and dirt by brushing up-
ward, as shown in the diagram. Also, use a good record
cleaner to remove dust and dirt from the grooves.
If there is no record on the turntable mat, the tonearm will not
move, even if you press the start button.
This unit uses an optical sensor to detect record size and
whether there is a record on the turntable mat or not.
If no record is on the mat, the turntable will rotate once or
twice and the optical sensor will detect the fact that no
record is present. Therefore, the tonearm will not move.
This safety feature prevents accidental damage to the stylus
tip and cartridge.
This also means that if you place a transparent record (its
color may be red, green, yellow, blue, etc.) on the turntable
mat, the turntable will operate as if there was no record.
Use the selective play procedure for records that do not meet
industry standard dimensions.
Wipe the dust cover and cabinet with a soft, dry cloth.
Never use any cleaners containing alcohol, benzine or
thinner.
Use of a chemical dust cloth should also be avoided. Be sure
that the dust cover is not exposed to insecticide spray.
To remove stubborn fingerprints or grease spots, disconnect
the AC power plug.
Use a soft cloth slightly moistened with a mild soap-and-
water solution.
Do not wipe the dust cover during play, or the tonearm may
be attracted toward the dust cover due to the generation of
static electricity.
Please open the upper cabinet gently.
Always remember to press the lock button before trying to
lift up the cabinet top.
Open the top gently; it is designed to stop at a 60° angle.
- When you need wider access, when changing the stylus or
cartridge, for example, you can open the cabinet top toa
maximum of 90° by pushing further while holding down the
lower cabinet with your other hand.
™@ Always be sure the cabinet is closed tightly.
lf the cabinet is not locked, the stylus tip will not maintain
optimum contact with the record grooves. Also, open and
close the cabinet carefully.
™ Do not open the upper cabinet unless the lower cabinet is
supported (when using the unit upright or on its side).
Also, hold onto the upper cabinet when you open it when
using the unit on its side or upright.
If the cabinet is allowed to open suddenly, it may cause
damage.
@ Adjust the stylus pressure in the following cases.
(Fig. 21.)
Stylus pressure is normally set to 1.25 grams but may be
raised or lowered by +£0.25 grams.
It may be necessary to increase stylus pressure when play-
ing records cut at high levels, or when room temperature
is low, or when the unit easily picks up external vibrations.
This will help prevent distortion and groove-skipping.
To adjust stylus pressure, turn either way, as shown in the
diagram. The screw is coupled to the graduated ring.
Note:
Do not turn the stylus-pressure adjustment screw further
than the set limits (1.5 g ~1.0g).
Caution:
Never attempt to move the tonearm by hand.
This may seriously damage the delicate tonearm drive
mechanism. lf the arm does not respond to the normal
operating procedure as outlined in this booklet, consult
your nearest authorized servicenter.