Sony MHC-C9EX - Manuel (Page 29)

Maintenance
To clean the tape heads and tape
path
Contaminated tape heads cause poor
recording or sound drop-out in playback.
We recommend cleaning after every
10 hours of operation.
Open the tape compartment and wipe the
heads, the pinch rollers and the capstans
with a cleaning swab slightly moistened
with cleaning fluid or alcohol. Wipe the
parts shown below:
Deck A Cleaning
swab
Deck B
- Capstan -
Record/Playback
head
Cleaning
swab
Erase Head
^ Pinch Roller ^
Insert a tape when the areas cleaned are
completely dry.
To demagnetize the tape heads
After 20 to 30 hours of use, enough residual
magnetism will have built up on the heads
to begin to cause loss of high frequencies
and hiss. At this time, demagnetize the
heads and all metal parts in the tape path
with a commercially available tape head
demagnetizer. Refer to the instructions of
the demagnetizer.
To clean the cabinet
Use a soft cloth slightly moistened with
mild detergent solution.
To clean the CO
When a CD is dirty, clean it with a cleaning
cloth. Wipe the CD from the center out.
Notes on CD
• Do not use solvents such as benzene,
thinner, commercially available cleaners,
or anti-static spray intended for vinyl LPs.
• If there is a scratch, dirt or fingerprints on
the CD, it may cause a tracking error.
Specifications
AUDIO POWER
SPECIFICATIONS
POWER OUTPUT AND
TOTAL HARMONIC
DISTORTION:
(MHC-C9EX)
(CENTER)
With 6 ohm loads driven,
from 40 - 20,000 Hz; rated
20 watts minimum RMS
power, with no more than
0.9% total harmonic
distortion from
250 milliwatts to rated
output.
(REAR)
With 6 ohm loads, both
channels driven, from
40 - 20,000 Hz; rated 8 watts
per channel minimum RMS
power, with no more than
0.9% total harmonic
distortion from
250 milliwatts to rated
output.
(MHC-C7EX)
With 6 ohm loads, both
channels driven, from
40 - 20,000 Hz; rated
100 watts per channel
minimum RMS power, with
no more than 0.9% total
harmonic distortion from
250 milliwatts to rated
output.
(SA-S900)
(Woofer)
With 6 ohm loads driven,
from 40 - 3,000 Hz; rated
50 watts minimum RMS
power, with no more than
0.9% total harmonic
distortion from
250 milliwatts to rated
output.
(Tweeter)
With 50 ohm loads driven,
from 3,000 - 20,000 Hz; rated
8 watts minimum RMS
power, with no more than
0.9% total harmonic
distoration from
250 milliwatts to rated
output.
Tuner section
FM stereo, FM/AM superheterodyne tuner
FM tuner section
Tuning range 87.5 -108.0 MHz
Antenna terminals 75 ohm unbalanced
Intermediate frequency
10.7 MHz
AM tuner section
Tuning range
AM: 530 -1,710 kHz
(with the AM tuning
interval set at 10 kHz)
531 -1,710 kHz
(with the AM tuning
interval set at 9 kHz)
Antenna AM loop antenna
External antenna
terminals
Intermediate frequency
450 kHz
CD player section
System
Compact disc digital
audio system
Laser Semiconductor laser
Wavelength 780 - 790 nm
Frequency response
2 Hz-20 kHz
Signal-to-noise ratio
More than 95 dB
Dynamic range More than 90 dB
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