Denon DRM-400 - Troubleshooting and Specifications; Troubleshooting Common Issues; Technical Specifications

SYMPTOMS
OFTEN
MISTAKEN
AS
BREAKDOWNS____
Make
sure
of
the
followings
before
you
consider
as
any
lf
the
tape
deck
still
does
not
function
properly,
check
malfunctions:
:
it
again,
using
the
check
list
below.
If
the
symptom
does
1.
Are
all
the
connections
correct?
not
correspond
to
the
check
list,
please
contact
your
DENON
i
:
:
dealer.
.
:
:
Ls
2. Is the set being: operated correctly in accordance
with the operating instructions?
3. Are the speakers and amplifiers. functioning cor-
rectly? :
Tape does not run. Power cord is off.
Tape is completely wound up.
Tape is loose. : ‘
Cassette is not loaded properly.
Check power cord.
Rewind tape. :
Tighten tape with pencil, etc.
Load cassette properly.
Defective cassette. Replace cassette. oo
Tape is not recorded when No cassette is loaded. Load cassette.
recording button is pressed. Erase prevention tab is broken off. Cover hole with plastic tape. ;
Sound is warbled or dis- Heads, capstan or pinchroller are con- Clean them.
torted. taminated. . .
Fast forward or rewind to loosen tape
winding.
Adjust recording. input level.
_ Replace tape.
Replace tape.
Clean them.
Tape is wound too tight.
Recording input level is too high.
Tape is worn out and has ‘‘drop-outs”.
Tape is worn. :
Heads, capstan or :pinchroller are con-
Excessive noise.
taminated. r
Heads are magnetized. Demagnetize heads.
Recording input level is too low. Adjust recording input level.
High frequency (treble) is Dolby NR button is set improperly. Set Dolby NR button properly.
emphasized.
High frequency (treble) is |: Heads are contaminated. : Clean them.
lost. Tape is worn. : Replace tape.
When a CrOz or metal tape - The cassette housing is of an older design Use the latest cassette with tape type
is placed in the deck, a dif- without tape type detection holes. detection holes.
ferent tape indicator comes. .
on.
The cassette tape cannot be
removed.
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.
Turn the power switch ON again.
Then, press the EJECT button to remove
the cassette tape.
SPECIFICATIONS
e Type .......--2-0- Vertical tape loading 4-track 2-channel * Outputs :
stereo cassette deck line: evesaliee asus 775 mV (O dB) output level at maxi-
« Heads.............. Record/Playback (Hard permalloy R/P mum ‘(with 47 kohm load, recorded
head) serine : level of 200 pwb/mm) ald:
Erase head (Double gap ferrite) headhone ........ 1.2 mW output level at maximum
¢
Motors.............
Capstan
(DC
servo
motor)
X
1
:
;
(optimum
load
impedance
8
ohm~
Ree}
(DC
motor)
x
1
ie
:
1.2
kohm)
«
Tape
Speed........
4.8
cm/sec.
;
«
Accessories
.......
Parallel
pin
cord
x
2
«
Fast
forward,
ws
a
ae
Mini-plug
cable
x
1
rewind
time........Approx.
110
sec.
with
a
C-60
cassette
+
Power
supply
......
50
Hz/60
Hz
compatible,
voltage
is
¢ Recording bias..... Approx. 105 kHz shown on rating label ;
* Overall S/N ratio ¢ Power consumption.17 W
(at 3% THD level). .Dolby C NR on ... more than 73 dB Dimensions ........ 434(17-3/327)(W) X125(4-28/327) (H)
(CCIR/ARM) X 275(10-53/64”) (D) mm
*
Overall
frequency
e
Weight...........-.
3,8
kg
:
response ........... 25~18,000 Hz +3 dB
(at —20 dB METAL tape) MW Above specifications and design styling are subject
¢ Channel separation.more than 40 dB (at 1 kHz) to change for improvement. ;
« Crosstalk .......... more than 65 dB (at 1 kHz)
° i flutter ..... 0.055% wrms, +0,14% w. peak MDolby noise reduction manufactured under license from
¢ Inputs ere: eS Dolby Laboratories Li i tion. “ a
LING iece Sev deiee ices 80 mV (—20 dBm) input level at 4 erator ty eneia/ eerPorg toy Holby: ane
the double-D symbol are treademarks of Dolby Laboratories
maxi . . :
ete Licensing Corporation. .
Input impedance : 50 kohm unbalanced
Best results will be obtained with use of DENON DX and HD
Series cassette tapes. ;
11