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Kenwood DM-SG7 User Manual

Kenwood DM-SG7
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DM-SG7(EN)
9
Before operation
Unplug power cord
Note related to transportation and movement
Before transporting or moving this unit, carry
out the following operations.
1. With no disc loaded in the unit, press the
(on/standby) key to on.
2. Wait a few seconds and verify that the display
shown appears.
3.Press the
(on/standby) key to off
(standby).
(
dB)
NOI
D
I
S
C
R
L
3
0130
10
5
Maintenance
Maintenance of the unit
When the front panel or case becomes dirty, wipe with
a soft, dry cloth. Do not use thinner, benzine, alcohol,
etc. for these agents may cause discoloration.
In regard to contact cleaner
Do not use contact cleaners because it could cause a
malfunction. Be specially careful not to use contact
cleaners containing oil, for they may deform the plastic
component.
Write protect tab
To protect recorded contents against accidental erasure,
set the write protect tab of the disc open. Return the tab
to the original position when you want to record signals on
the disc.
Care
Wipe periodically dust and dirt attached on the cartridge
with a dry cloth.
Write protect tab
Slide close.
(Recording
enabled)
Disc back
side
Do not touch the disc directly.
Do not touch the disc by opening the shutter with your
hand. The cartridge will be damaged if it is forced open.
Storage position
Do not leave Mini Discs in place where the temperature
and/or humidity are extremely high (for example, in a place
subject to direct sunlight).
Handling of Mini Disc
As the Mini Disc is accommodated inside a cartridge, it can be handled without caring about dust or fingerprint.
However, stained or soiled cartridge may cause malfunction. To enjoy beautiful sound for extended period of
time, take care on the following points.
Slide open.
(Recording
disabled)
Dust countermeasure
The shutter of the disc cartridge is permanently open while the
disc is loaded in the set. Therefore, to prevent dust from
penetrating inside the disc, take the disc out of the unit
immediately after completion of recording or playback.
Check that no disc is present in the unit.

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Kenwood DM-SG7 Specifications

System and Audio IconSystem and Audio
systemMinidisc digital audio system
laserSemiconductor laser
recording methodField modulation overwrite method
audio compressionATRAC (Adaptive TRansform Acoustic Coding)
playing rotationApprox. 400 rpm ~ 900 rpm (CLV)
D/A conversion1 Bit
oversampling128 fs (5644.8 kHz)
A/D conversion methodSigma-delta method
sampling frequency44.1 kHz
Digital Audio Performance IconDigital Audio Performance
frequency response (playback mode)8 Hz ~ 20 kHz, ± 1 dB
signal to noise ratio (playback mode)More than 92 dB
dynamic range (playback mode)More than 90 dB
total harmonic distortion (1 kHz, playback mode)Less than 0.007 %
channel separation (1 kHz, playback mode)More than 85 dB
wow & flutterLess than unmeasurable limit
Inputs and Outputs IconInputs and Outputs
analog input sensitivity / input impedance300 mV / 70 kΩ
analog output level / load impedance1.2 V / 3.2 kΩ
digital input, optical (wave length 660 nm)- 15 dBm ~ - 21 dBm
General Specifications IconGeneral Specifications
power consumption14 W
dimensions (width)200 mm (7 - 7 / 8")
dimensions (height)77 mm (3 - 1 / 16")
dimensions (depth)247 mm (9 - 3 / 4")
weight (net)2.1 kg (4.6 lb)

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