Troubleshooting; Specifications - Denon Professional DN-A300M Mode D'emploi

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Troubleshooting

Check the following before assuming there is a problem with the set
1. Are all connections proper ?
2. Is the set being operated as described in the operating instructions ?
3. Are the speakers and input components being operated properly ?
If the set does not seem to be operating properly, check the points listed below. If these points do not
apply, the set may be damaged. Turn off the power immediately and contact your store of purchase.
Symptom Cause
When the power is turned
• The power supply cord's plug is not
on, the power indicator
fully plugged in.
does not light and no
sound is produced.
• The speaker cables are not fully
connected.
• The device you want to listen to has
The power indicator
not been selected.
lights but no sound is
• The volume control is set to
produced.
minimum.
• The input cable is not fully connected.
• The speaker selector button is set to
"OFF".
• The speaker cables are not fully
Sound is only produced
connected.
from the left or right
• The input cable is not fully connected.
speaker(s).
• The left/right balance is off.
• The connections of the speakers or
For stereo sound, the
input cables are inverted.
positions of the
instruments are inverted
left/right.
• The player's ground wire is not
connected.
Humming sound is heard
• The cables are not fully connected to
in the music when
the PHONO terminals.
playing records.
• Influence from a TV or VCR near the
player.
• The player and speakers are too close
Howling is produced
together.
along with the music if
• The vibrations from the speakers are
the volume is too high
being transmitted to the player
when playing records.
through the floor.
• The microphone is plugged
incompletely.
Microphone sound is not
• The mic volume control is set to
produced.
minimum.
• The MIC MIX button is set to "OFF".
Clipping is produced
• The MIC AGC button is set to "OFF".
when using the
microphone.
• The needle pressure is not proper.
When playing a record,
• There is dirt on the tip of the needle.
the sound is distorted.
• The cartridge is defective.
Measures Page
• Make sure the unit is correctly
5
plugged in and switched on at the
mains socket.
• Connect securely. 4, 5
• Insure the correct input is selected. 2, 6
• Set to an appropriate level. 2, 6
• Connect securely. 5
• Ensure the SPEAKER A or B buttons 2, 6
are set to "ON" as appropriate.
4, 5
• Connect securely.
5
• Connect securely.
2
• Adjust to a proper balance using the
balance control knob.
• Check the connections to be sure 4, 5
that left is connected to left, right to
right.
• Connect securely. 3, 5
• Connect securely. 3, 5
• Try changing the positions in which –
the devices are installed.
• Install the player and speakers as far –
from each other as possible.
• Use cushions, etc., to absorb the –
speakers' vibrations.
• Plug securely. 2, 6
• Set to an approptiate level. 2, 6
• Set to "ON". 2, 6
• Set to "ON".
2, 6
• Adjust to a proper needle pressure. –
• Check the tip of the needle. –
• Replace the cartridge.
–
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Specifications

Power amplifier section
Rated Output Power: 2-channel driving (CD → SP OUT)
70 W + 70 W
110 W + 110 W (4 Ω/ohms, DIN, 1 kHz, T.H.D. 0.7%)
0.01% (Rated output: –3 dB), 8 Ω/ohms, 1 kHz
High frequency distortion:
Output terminals: Speaker A or B:
Pre amplifier section
Input Sensitivity/Input Impedance: PHONO (MM):
CD, TUNER, DVD/AUX,TAPE-1, TAPE-2: 150 mV/33 kΩ/kohms
MIC :
RIAA Deviation: PHONO (MM):
Overall performance
SN Ratio (A network): PHONO (MM):
(With input terminals short-circuited, 5 mV input signal)
CD, TUNER, DVD/AUX,TAPE-1, TAPE-2:
MIC :
Tone control : BASS:
TREBLE:
LOUDNESS: 100 Hz +6 dB, 10 kHz +4 dB
General
1 unswitched and 2 switched outlets, total capacity 100W (0.45A)
Power outlets:
Power Supply: AC 230 V, 50 Hz
Power Consumption: 300 W (IEC)
Dimensions: 483 (W) x 140 (H) x 372 (D) mm (including protruding parts)
Net Mass: 10.3 Kg
Operational temperature: 5℃ to 35℃ (41℉ to 95℉ )
-20℃ to 60℃ (4℉ to 140℉ )
Storage temperature:
Remote control unit (RC-1101)
Remote control type: Infrared pulse
Power supply: R03/AAA Type (2 batteries)
External dimensions: 50 (W) x 200 (H) x 27 (D) mm
Mass: 128 g (including batteries)
* For improvement purposes, specifications and functions are subject to change without advanced notice.
7
(8 Ω/ohms, 20 Hz ~ 20 kHz, T.H.D. 0.07%)
4 ~ 16 Ω/ohms
8 ~ 16 Ω/ohms
A + B:
2.5 mV/32 kΩ/kohms
0.6 mV/4 kΩ/kohms
20 Hz ~ 20 kHz ±0.5 dB
76 dB
105 dB (input terminals short-circuited)
60 dB
100 Hz ±8 dB
10 kHz ±8 dB