Sharp QT-90W Manual Del Usuario página 10

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Maintenance
Cleaning the tape-handling
parts
Dirty heads, capstan or pinch roller can cause
poor sound and tape jams. Clean these parts
with a cotton swab moistened with commer-
cial head/pinch roller cleaner or isopropyl al-
cohol.
After long use, the deck's heads and cap-
stan may become magnetised, causing poor
sound. Demagnetise these parts once eve-
ry 30 hours of playing/recording by using a
commercial tape head demagnetiser. Read
the demagnetiser's instructions carefully be-
fore use.
A B C
A Pinch roller B Capstan
C Recording/Playback head D Erase head
Specifications
SHARP reserves the right to make design and specification changes for product improvement
without prior notice.
General
Power source
Power consumption
Output power
Speakers
Output terminal
Input terminals
Dimensions
Weight
Radio
Frequency range
Tape recorder
Frequency response
Signal/noise ratio
Wow and flutter
Motor
Bias system
Erase system
01-E1-E9-QT-90W(EX)
Cleaning the cabinet
Periodically wipe the cabinet with a soft cloth
and a diluted soap solution, then wipe with a
dry cloth.
Caution:
Do not use chemicals for cleaning (petrol,
paint thinner, etc.). It may damage the cabi-
net finish.
Do not apply oil to the inside of the unit. It
may cause malfunctions.
Condensation
Sudden temperature changes, storage or op-
eration in an extremely humid environment may
cause condensation inside the cabinet (tape
heads, etc.).
Condensation can cause the unit to malfunc-
tion.
D
If this happens, leave the power on with no
cassette in the unit until normal playback is
possible (about 1 hour).
AC 110-127/220-240 V, 50/60 Hz
DC 15 V ["D" size (UM/SUM-1, R20 or HP-2) battery x 10]
24 W
MPO: 36 W (18 W + 18 W) (AC operation, 10 % T.H.D.)
RMS: 20 W (10W + 10W) (DC operation, 10 % T.H.D.)
8 cm (3-1/8") full range speaker x 4
Headphones: 16 - 50 ohms (recommended: 32 ohms)
Mixing microphone: 600 ohms
Line input: 350 mV/47 kohms
Width: 520 mm (20-1/2")
Height: 191 mm (7-1/2")
Depth: 216 mm (8-1/2")
4.7 kg (10.4 lbs.) without batteries
FM: 88 - 108 MHz
SW1: 2.3 - 7.3 MHz
SW2: 7.3 - 22 MHz
MW: 526.5 - 1,606.5 kHz
60 - 12,000 Hz (Normal tape)
40 dB
0.3 % (WRMS)
DC 12 V electric governor
AC bias
Magnet erase
E-9
10 01.9.6, 3:43 PM