Denon DRA-25 Service Manual

MDRA-25/25St
PRECAUTIONS FOR INSTALLATION
DRA-25/25L uses a newly developed heat emitting unit by employing heat pipes. Since the heat pipes contain a
coolant, the DRA-25/25L must be set level or the desired heat emitting effect cannot be achieved. Always instal! this
unit horizontally.
ADVICE FOR USE
e Do not place the set in direct sunlight, in hot areas such as near heating equipment, with high humidity or dust levels.
This may cause damage to the unit.
Check that all parts are connected correctly before turning on the power source.
When user is absent for jong periods, be sure to remove plug from wall socket.
Do not use insecticide, benzene or thinner near the unit, or the cabinet color will fade. Avoid using polish: use a soft
cloth (e.g. silicon cloth),
ciligy
vue wry,
‘4
Z
It is not recommended to place players, decks and other objects on the DRA-25 or DRA-25L so that the vents are
blocked, This will cause internal temperature rise and equipment failure. Do not use the DRA-25 or DRA-25L in
a closed cabinet or container. This will cause internal temperature rise abnormally.
For United Kingdom model only.
WARNING:
As the colours of the wires in the mains lead of this
appliance may not correspond with the coloured
markings identifying the terminals in your plug
proceed as follows:
The wire which is coloured blue must be connected
to the terminal which is marked with the letter N
or coloured black. The wire which is coloured
brown must be connected to the terminal which is
marked with the fetter L or coloured red.
The wire which is coloured BROWN must be
connected to the terminal which is marked with
the letter L or coloured RED.
IMPORTANT
The wires in this mains lead are coloured in accord-
ance with the following code:
Blue: Neutral
Brown: Live
SPECIFICATIONS
AMPLIFIER SECTION
Rated Output Power:
Power Bandwidth (IHF):
Total Harmonic Distortion
{20 Hz to 20 kHz):
Frequency Responses:
input Sensithvity and
Impedance:
Maximum Input Level
(at 1 kHz):
Signal to Noise Ratio
{IHF-A):
Tone Controls:
Loudness, Control Effect:
3OW
+
30W
per
channel
minimum
RAMS,
both
channels
driven
at
8
ohms
from
20
Hz
~
20
kHz
no
more
then
0.05%
total
harmonic
distortion
45W
+
45W
per
channel
minimum
RMS,
both
channels
driven
at
4ohms
from
1
kHz
DIN
no
more
than
1%
total
harmonic
distortion
10
Hz
~
40
kHz
(T.H.D.
0.1%
both
ch,
driven
at
8
ohms)
-3
dB
power
into
8
ohms
0.04%
PHONO
RIAA
Standard
Curve
(Recording
Output)
MM
20
Hz
~
20
kHz
+
0.5
dB
20
Hz
~
50
kHz
+
1.5
dB
PHONO
MM
2.5mV_
47k
ohms
AUX, TAPE, CD
150mV 33 k ohms
PHONO
MM 150 mV
PHONO
MM
78
dB
at
5.0
mV
input
AUX,
TAPE,
CD
95 dB at 150 mV input
BASS +10 dB at 100 Hz
TREBLE
+10
dB
at
10
kHz
VARIABLE
LOUDNESS
10
posi-
tions,
50
Hz/10
kHz,
+10
dB/+5
dB
TUNER SECTION
LEM)
(note:
#V
at
75
ohms,
0
dBf
=
1
x
40°!FW)
Recelving
Range:
87.5
~
108
MHz
Usable
Sensitivity:
0.9
pV
(10.3
dBF)
S/N 50 dB Quieting
Sensitivity:
Signal to Noise Ratio
(IHF-A):
Tota! Harmonic Distortion
{at 1 kHz):
Capture Ratio:
image Rejection:
AM Suppression:
Selectivity (+300 kHz):
Frequency Response:
Stereo Separation (at 1 kHz):
(mw)
Recsiving Range:
Usable Sensitivity:
Signal to Noise Ratio:
[LW] (DRA-251 only)
Receiving Range:
Usable Sansitivity:
GENERAL
Power Supply:
Power Consumption:
Dimensions:
Weight:
a
es
DRA-25/25L
ma
MONO
=
1.6
#V
(15.3
dBf)
STEREO
23
pV
(38.5
dBf)
MONO 82¢B
STEREO 78 dB
MONO 0.2%
STEREO 0.4%
1.5 dB
70 dB
50 dB
60 dB
30 Hz ~ 18 kHz 70-2 dB
40 dB
522 ~ 1611 kHz
18 pV
53 dB
153 ~ 360 kHz
30 pV
AC
220
V
50
Hz
{for
Europe)
AC 240 V 50 Hz (for U.K, &
Australia)
120 W
434
mm
(17-3/32")
W
x
112mm
(4-13/32"") H x 278 mm
(10-15/16") D
5.5 kg (12 Ibs 2 0z)
Design
and
specifications
are
subject
to
change
without
prior
notice.
NOTE:
The
following
codes
correspond
to
the
appropriate
models.
E2
for
Europe,
EA
for
Australia
and
EK
for
U.K.
This
Service
Manual
is
prepared
based
on
E2
Black
Version.

Denon DRA-25 Specifications

General

Brand	Denon
Model	DRA-25
Category	Stereo Receiver
Language	English