Denon DRM-650S - Troubleshooting Guide; Technical Specifications

ENGLISH
TROUBLESHOOTING
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Sane
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Make sure of the following before you consider as any malfunctions.
1. Are all the connections correct?
2. Is the set being operated correctly in accordance
with the operating instructions?
3. Are the speakers and amplifiers functioning correctly?
If
the
tape
deck
still
does
not
function
properly,
check
it
again,
using
the
check
list
below.
If
the
symptom
does
not
correspond
to
the
check
list,
please
contact your DENON dealer.
Problem
Tape does not run.
Tape is not recorded when recording button is
pressed.
Sound is warbled or distorted.
Excessive noise.
High frequency (treble) is emphasized.
High frequency (treble) is lost. @ Heads are contaminated.
e@ Tape is worn.
The cassette tape cannot be removed.
Cause
@ Power cord is off.
© Tape is completely wound up.
@ Tape is loose.
e Cassette is not loaded properly.
@ Defective cassette.
Remedy
Check power cord.
Rewind tape.
Tighten tape with a pencil, etc.
Load cassette properly.
Replace cassette.
e No cassette is loaded.
@ Erase prevention tab is broken off.
@ Heads, capstan or pinchroller are contami-
nated.
@ Tape is wound too tight.
e@ Recording input level is too high.
@ Tape is worn out and has “drop-outs”.
e@ Tape is worn.
@ Heads, capstan or pinchroller are contami-
nated.
@ Heads are magnetized.
e Recording input level is too low.
Load cassette.
Cover hole with plastic tape.
@ Clean them.
@ Fast forward or rewind to loosen tape wina-
ing. i
e Adjust recording input level. |
@ Replace tape. |
e Replace tape.
e@ Clean them.
e@ Demagnetize heads.
@ Adjust recording input Jevel.
@ Dolby NR button is set improperly.
@ If the power switch is turned off in either
the recording or playback mode, and the
unit is stopped, there may be case when
the cassette cannot be removed, even if
the EJECT button is pressed.
SPECIFICATIONS
Type Vertical tape loading; 4-track 2—channel Inputs
stereo cassette tape deck line
Heads Record/ Playback (R/P head) x 1
Erase head (Double-gap ferrite head) x 1 Outputs
Motors Capstan (DC servo motor) x 1 line
Reel {DC motor) x 1
Tape Speed 4.8 cm/sec.
Fast
Forward,
headphones
Rewind Time Approx. 110 sec. with a C-60 cassette
Recording
Bias
Approx
105
kHz
Power
Supply
Overail S/N Ratio
(at 3% THD level)
Overall Frequency
Dolby C NR on: more than 74 dB (CCIR/ARM)
Dolby S NR on: more than 76 dB (CCIR/ARM)
Power Consumption
Dimensions
Weight
Response 25 ~ 18,000 Hz ~ +3 dB {at —20 dB, Metal tape)
Channel Separation More than 40 dB (at 1 kHz)
Crosstalk More than 65 dB (at 1 kHz)
Wow & Flutter 0.055% WRMS, +0.14% w. peak
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@ Set Dolby NR button properly.
@ Clean them.
e Replace tape.
Turn the power switch ON again, and then
press the stop ( M) button.
Then, in the stop mode, press the EJECT but-
ton to remove the cassette tape.
_—__-
a
————
eee
80 mV (— 20 dBm) input level at maximum
Input impedance: 50 kQ2/kohm
775 mV (0 dB) output level at maximum -
(with 47 kQ/kohm load, recorded level of
200 pwb/mm)
1.2 mW output level at maximum
(optimum load impedance 8 2/ohm ~ 1.2 k2/kohm)
230V 50Hz
16W
434 (W) x 135 (H) x 270 (D) mm
3.8 kg (8 Ibs 6 02)
*
Design
and
specifications
are
subject
to
change
without
notice
in
the
course
of
product
improvement.
Best results will be obtained with use of DENON GR Series
cassette tapes.
Dolby
noise
reduction
and
HX
Pro
headroom
extension
manufactured
under
license
from
Dolby
Laboratories
Licensing
Corporation.
HX
Pro
originated
by
Bang
&
Olufsen.
“DOLBY”,
the
double-D
symbol
O0
and
“HX
PRO”
are
trademarks
of
Dolby
Laboratories
Licensing
Corporation.
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