Nakamichi BX-300 User manual

NakamichiBX-3tr8
Discrete
Head
Cassette
Deck
Owner's
Manual

Congratulations!
You
have
chosenan excellent
cassette
deck.TheNakamichi
BX-300incoroorates
a
wealth
oforiginalNakamichi
technology,
suchasthe Discrete
Three-Head
system,
a
Direct-Drive
Asymmetrical,
Diffused-Resonance
Dual
CapstanTransport
etc.Thedeck
isdesignedtodeliver
outstanding
performance
inevery
basicaspect,while
providing
a
reasonable
choice
of usefulfeatures.
In
ordertotake
lull advantage
ofthisunit's
superior
performance,
please
read
this
manualin itsentiretyandretain
itfor
futurereference.
Thank
you.
Nakamichi
Corporation.
Please
record
the
Model
Number
and
Serial
Number
in
thespace
provided
below
and
retain
these
numbers.
ModelNumber
and
Serial
Number
arelocated
on
the
rear
panel
ofthe
unit.
Model
Number:
Nakamichi
BX-300
SerialNumber:
CONTENTS
Connections
Salety
Instructions.
.,
OnCassetteTapes
.
Controls
andFeatures
Operation
Special
Features
Maintenance.
TroubleshootinS.......
Specifications.
Optional
Accessories
z
3
!t
4
5
7
n
I
RI5K
OF
ELETTRIC
5HOTK.
DOIIOTOPEN
I
- CAUTIO
TO
REDUCE
THE
RISK
OF
ELECTRIC
SHOCK,
DO
NOT
REMOVE
COVER
(OR
BACK).
NO
USER-SERVICEABLE
PARTS
INSIDE.
REFER
SERVICING
TO
QUALIFIED
SERVICE
PERSONNEL
Thelightning
flash
with
arrowhead
symbol,within
an
equilateral
triangle,
is
intended
toalertthe user
of the presence
ol uninsulated
"dangerous
voltage"
within
the
producl's
cnclosuro;
lhalmay
be
ofsufficient
magnitude
toconstitute
a
risk
ofelectric
shocktopersons.
The
exclamation
point
within
an
equilateral
triangle
isintended
to
alert
lhe user
ofthepresence
of imoortant
operating
and
maintenance
(servicrng)
Instructions.
intheliterature
accompanying
theappliance.
WARNING
TOPREVENT
FIRE
ORSHOCK
HAZARD,
DONOT
EXPOSE
THIS
APPLIANCE
TO
RAIN
OR
MOISTURE.
This
equipment
generales
anduses
radio
frequency
energy
and
il not
installed
andused
properly,
thatis,
in strictaccordance
withthe
manufaclurer's
instructions,
may
cause
interlerence
to radio
andtelevision
receotion.
lt
hasbeen
typetested
andfound
to comply
with
the
limits
for
a ClassBcomputing
devicein
accordance
withthe
specifications
in
Suboarl
J ol Part
15
of FCCRules,
which
aredesigned
to
provide
reasonable
proteclion
against
such
interference
in
a residential
installation.
However,
thereis noguarantee
that
interlerence
willnot
occurin
a particular
installation.
lfthis
equipment
does
cause
interference
to radio
or television
reception,
which
canbe
determined
byturning
the
equipment
offandon,the useris encouraged
totryto correct
theinterference
by one
or
more
ol thelollowing
measures:
- reorient
the
receiving
antenna
- relocate
this
equipmentwith
respect
to
the
receiver
- move
thisequipment
awayfrom
thereceiver
- plug
this
equipmentinto
aditterenl
ouuet
sothatequipment
andreceiver
areon
dilferent
branch
circuits.
lf necessary,
theusershould
consultthe
dealer
or anexperienced
radio/television
technicianfor
additional
suggeslions.
The
user
mayfindthefollowing
booklet
prepared
bythe
Federal
Communications
Commissionhelolul:
"How
to ldentify
andResolveRadio-TV
Interterence
Problems".
This
booklet
is
availablef
romthe
U.S.
Government
Printing
Oltice,Washington,
DC
20402,
StockNo.
004-000-00345-4.
Connections
Atter
consulting
the
instructions
for
your
amplifierorreceiver,
usethe
shield€d
cables
with
RCA
plugs
(provided
withthe
deck)to
make
connections
as
shown
in
thechart.
Take
carenotto mixup leltandright
channels.
Whilemaking
connections,
the
power
to
thedeck
and
to
theamplilier
should
beswitchedofl.
Headphones
Standardstereo
headphones
withan
impedance
ol 8-150 ohms
may
be
connecledto the headphone
jack.
Microphone
Gonnections
TheBX-300possesees
onlylineInput
facilities.
Whenmicrophones
areto be usedfor
recording,
a separatemicrophone
mixer
with
a line
outputmust
beconnected
to
this
deck'slineinput
terminals
Nakamichi
offersthe
optional
MX-100
Microphone
Mixer,
whichprovides
three
inputs
forlelt,
right
andcenter
blend
(L+R)
microphones.
Topower
theMX-100,
the
separatePS-100
Power
Supply
is required.
RemoteControl
The
optionalremote
conlrol
unitRM-200
permits
operation
of thedeck's
tapetransport
functionsfrom
anyconvenient
location.
R€moto Terminal
Remote
ControlUnit RM-200 (ootional)
LineTerminals
To
Amplilier's
"R€cOul" Terminals
Preamplilier,Amplilier
or Recsivgr
To
Anplilie.'s
"Tape
Play"
Terminals
(l-R)
To AC Wall Outlet or
Amplili€r's
ACOullet
Microphone

Safety
Instructions
Thelollowingsafetyinstructions
have
been 8. Ventilation-Theapplianceshould
be l3.Cleaning-Theapplianceshould
becleaned
included
in compliancewithsaletystandard situatedsothatits locationor position
does onlyas recommendedby themanufacturer.
regulations.Pleasereadthemcarefully. notinterlerewith itsproper
ventilation.For 14.NonusePeriods-The power
cordof the
'|
. ReadInstructions-All thesalety
and example,the applianceshould
notbe applianceshouldbe unplugged
lromthe
operating
instructionsshouldbe read situatedona bed,sofa,rugor similar outlet
whenleftunusedfor a long
period
of
beforetheappliance
isoperated. surface
thatmayblocktheventilation time.
2. Retain
instructions-Thesafetyand openings;orplaced
in
a built-in
installation, 1S.ObjectandLiquidEntry-Careshouldbe
operating
instructionsshouldbe retained suchas a bookcaseor cabinet
thatmay takensothat objectsdo notfallandliquids
forfuturereference. impedethellowof airthroughthe arenotspilled
into
theenclosure
through
3. HeedWarnings-All
warnings
on
the ventilation
openings. openings.
appliance
andintheoperating
instructions 9. Heat-Theapplianceshouldbesituated 16.OamageRequiringService-Theappliance
shouldbeadhered. awayfromheatsourcessuchas radiators, shouldbeserviced
by qualified service
4. FollowInstruclions-All operating
anduse heatregisters,
stoves,
or otherappliances personnel
when:
inslructions
should
befollowed. (including
amplifiers)which
produce
heat. A. The
power-supply
cordorthe
plug
has
5. Water
andMoisture-Theapplianceshould 1o.Power
Sources-The
applianceshouldbe beendamaged;or,
notbe used nearwater-tor example,
near connecledto a power supplyonlyof the B. Objects havefallen,
or liquidhasbeen
a bathtub,washbowl,
kitchensink,laundry type described
inthe
operating
instructions spilled
intothe
appliance;
or,
tub,in a wetbasement,or near a swimming or asmarked
ontheappliance. C. Theappliance
hasbeenexposed to
pool,
etc. 1l.Groundingor Polarization-Precautions rain;
or,
6. CartsandStands-The applianceshould
be shouldbetakenso thatthegrounding or D. Theappliancedoesnotappearto
usedonly
witha cartor stand
thatls polarization meansof anappliance
is not operatenormally
or exhibitsa marked
recommendedby themanufacturer. defeated. change
in performance; or,
7. Wallor Ceiling
Mounting
-The appliance 12.Power-CordProtection-Power-supply E. Theappliance
hasbeendropped,or the
shouldbe mountedto a wallor ceilingonly cordsshouldberouted
sothattheyarenot enclosuredamaged.
asrecommendedby
themanufacturer. likely to bewalkedonor pinched byitems lT.Servicing-Theusershould
not
attemptto
placed
uponor againstthem,
paying service.theappliance
beyondthat
particular
attentionto cordsat plugs, described intheoperating instruction.All
convenience
receptacles,
and
thepoint otherservicingshould
bereferredto
where
they
exit
from
theappliance. qualified
service
personnel.
OnCassette
Tapes
Precautions
1. C-120 cassettes
(playing
time
one
hour
per
side)
containextremely
thintape
which
breaksorsnarlseasily,
is
sometimes
subiecttostretchingand
also
isot low
sensitivity.
Therefore,C-.120
cassettesarenotrecommended
for
high-tidelityrecording.
2. Donotpull
outthetape
lromthecassette
housing.
3. 8ecaretul
not
toturn
thecassette
reels
withthefingers,causingtapeslackening.
4. Storecassette tapesaway
fromheat,high
humidity,dust,and
magneticlieldssuch
ascaused byspeakers,
TVsetsetc.
Cassette Tabs
Youcanprotect valuablerecordings
from
accidentalerasureandre-recordingby
completelyremovingtheappropriate
tabonthe
topedgeof thecasselte. Thetabfor eachside
is located
onthetopleft-hand corneras you
facetheside.Usea smallscrewdriver,and
push
thetabdown
to break it olf.Donotleave
thebroken tab inthe recess.lf youwishat a
laterdateto record
overa sidefor whichthe
tab hasbeenremoved,cover
thetabopening
witha piece of adhesivetape.
Gassette lnsertion and Removal
(1) Insertion
of a Cassette
1. Whenthe Ejectbuttonispushed
inthe
stop
mode,
thecassetteholder
opens.
2. Insert thecassetteintotheholderwith
theexposedtapefacing
downandthe
labelof thedesiredside lacing
you.
3. Gently
push
thecassette holder
back
intothe
panel.
. For
protection
of thetapeandtape
transport,
do notpress the Eject
button
inanymode
otherthanthe
stop
mode.
(2) Removalof a Cassette
1. PresstheStop button.
2. When theEject butlon
ispushed,
the
cassette
holder
opens.
3. Removethecassette.
Breakolflhislablo
prolect
Sidg
A lrom
accidenlal
erasure
Ereak
oll thistab
toProtect
Side
Blromaccidental
erasure.

Controls
and
Features
Power Switch Fast-Forward
Button CounterReset
Button DolbyNR
Indicators
Rewind Button
Headphone
Jack
(1) TapeCounter
Startingfrom"0000",
tape
travel
is indicated
in
the range
from
"9999" to "-999". Toreset
the
counter
indication
to "0000",press
the
Counter
Reset
button.
(2) Play
Button
Pressthesectionmarked
with > to start
playback
or to startrecording
from
the
record-standby
mode.
During
operation,
the
indicator
lights
up.
(3) Stop Button
Press
thesection
marked
with I to completely
stop
thetapetransport
from
anymode.
The
indicator
lights
up.
(4) TimerSwitch
This
switchis usedfortimer-activated
recording
or playback.
Inordinary
operation,it
must
besetto "Olf". (*p. S)
(5) PitchControl
Serves
to altertape
speed
during
playback
over
a range
of approx.
*6% (one
semitone).
(6) Pause
Button
Press
thesection
marked
with 0E to
temporarily
interrupt
tape
travel
during
recording
or playback.
During
operation,
the
indicator
lights
up.Tostart
thetape
again,
press
the Play
button.
(7) Master FaderButtons
These
butlons
serveto perform
fade-in
and
fade-out
during
recordinS.
(-p. 6)
(8) Record Button
Simply
bypressing
thesectionmarked
withO,
thedeckentersthe record-standby
mode
(record/pause)
andthe recording
indicator
lights
up.
Whenthebutton
is pressed
once
more
duringrecording,
the
RecMutefunction
isactivated
lor as long
asthe buttonis kept
depressed.
(-tp. 6)
Cassette
lloldel
(9) MemorySwitch
Withthisswitch
setto "On", thetape
stops
automatically
when
thecounter
indication
"0000" is reached
duringrewind
or
fast-forward.
(1O)
Auto RepeatSwitch
Bysetting
this
switchto "On",
autorepeat
playback
is performed.(-p. 0 )
(11) Peak
LevelMeters
Provide
exactindication
of peak levels
in the
range
of -40 to + 1OdB.
(12) Output
Level
Control
Servestoadjustthe
line
output
andthe
headphone
outputlevel.
(13) Input
Level
Controls
Serve
to adjustthe recording
level
for leftand
right
channols.
(14) Bias
Tune
Control
Serves
for fineadjustment
of the bias
current.
(-p. 6 )
(15) MPX
Filter
Switch
Usedto
suppress
the19-kHz
multiplex
carrier
signal,
which
couldinterfere
with
proper
Dolby
NR
operation
whenrecording
fromFM
stereo
broadcasts.
Atothertimes,
theswitchshould
besetto "Off".
(16) TapeSelector Switches
Inrecording,
thecorrect
switchmust
be
selected
lor thetape
in use.
(*p. 6 )
(1
7) Equalizer
Switch
Serves
to select
correct
equalization
in
recording
andplayback
forthetapein use.
(-p. 6 )
(18) MonitorSwitch
For
playback
of a tape
andfor olf-the-taoe
monitoring
duringrecording,
this
switch
must
besetto "Tape".
For
recordlevel
setting
etc.,
theswitchmust
besetto "Source".
This
switch
is
also
used
during
biasfine
adjustment.
(-p. 6 )
(19) Dolby
NR
Switches
Touse
the DolbyNRsystem,
setthe upper
switchto "On" andselect
eitherthe B-type
or
theC-type
system
withthelower
switch.
The
respeclive
indicator
lights
up.
I Dolby NR System
Thiscassette
deck provides
a choice
between
the Dolby
B-type
andthe Dotby
C-lype
noisereduction
systems.
TheDolby
B-type
NRprovides
approximately
10dB of
noise
reduction
inthehigh
frequencies.
The
Dolby
C-typeNRis a further
relined
system,
whichachieves
a S/Nratio
improvement
of about
20 dB in the range
trom2 kHz
to 8 kHz,
wherenoise
is most
readily
audible,
For
playback
of a tape
whichwas recorded
withthe B-type
NR,
setthe Dolby
NR
switchto "B". For
playback
of a tape
recorded
with Dolby
C{ype NR,setthe
switchto "C".
qect Eutton

Precautions
Before
Operation
(1
)This
deckincorporates
a muting circuit
whichis active for about4 secondsafter
thepower
wasswitchedon,untilall
circuitshavebecome
stable.
(2)
lf the power isswitched
onwhilethe
Timer
switchis setto "Rec" or "Play",
recording
or playback willstart
automatically.Inorder to prevent
accidentalerasureof a tape,
besure
to
setthe Timerswitchto "Off"whenthe
timer
functionis notdesired.
(3)
lf during
playback
or recording thepower'
to thedeckwasswitchedoff byan
externaltimer
or thelike,it may
afterwardsnotbepossible
to depress
the
Eject
button.Donotapplyexcessive
force
insucha case.
Set
theTimer
switchof
thedeckto "Oft",
andthen
switch
the
power
to the deckbackon.Thecassette
cannow
beremoved.
(4)
Thiscassette
deckincorporates
a special
circuit
design€dto take
upanytape
slack
when
a cassetteis inserted.
Upon
closing
thecassette
compartment
or switching
on
thepower,
the left
spindlewill rotate
and
thetape
counterindication
may
change
slightly.
Thisbehavior
is normal
andnota
fault
withthedeck.
(5)Voltage Selector
AC
voltageis factory-set
for the country
in which
youpurchased
yourcassette
deck.Thevoltage
selector
permits
re-setting
of mains
voltagein casethe
deckis to be usedin a different
country.
Note:
Safetyregulations
in certaincountries
prohibit
inclusion
of a voltage
selector.
This
feature,
therefore,may
beabsent
trom
yourdeck.
- t20v
@um
220 240V
^
I Record Level Setting
For
good
recordings,it is
essential
tomaintain
a high
signal-to-noiseratio.lf therecordlevel
issettoolowtape
hisswill
impair
the
playback
sound
quality.
lf it issettoohigh,the
tapewillbedriveninto
distortion.Refertothe
chartbelow
tosetrecordinglevels.
Operation
Playback
(1
)Set
the Equalizer
switch
to the required
position
for thetapein use.
(2)
Setthe DolbyNRswitchesto the same
position
as usedfor recording.
(3)
Set
the Monitorswitchto "Tape".
(4)
Pressthe Play
buttonto startplayback.
(5)
Adjustthedesiredlisteninglevelwiththe
OutputLevelcontrol.
During
playback,
thisdeck'sPeakLevel
meters
displaythelevel
recorded
onthe
tape.Readings
arenotaffectedby
turning
the
OutputLevelcontrol.
Withthisdeckyoucangofromany
modeintoanyother(for
examplefrom
playback
to rewind,
fromrewind
to
fast-forward,
etc.)
withouthaving
to
press
theStopbutton.
Recording
(1)
Set
theTape
Selectorswitchesand
the
Equalizerswitchto the required
positions
forthe tape'n ut". 1*0. 6)
(2)
Select
thedesired
position
of the DolbyNR
switches.
For
recordingfrom FM
broadcasts,
setthe MPX Filter
switchto
"On".
(3)
Simply
press
the Recordbuttonto putthe
deckinto the record-standby
(record/
pause)
mode.
(4)
Set
the Monitorswitchto "Source" and
adjustthe recordinglevelwiththe Rec
Level
controlswhilewatchingthe indication
ofthe Peak
Level
meters.
(5)
Pressthe Play
buttonto startrecording.
(6)
To
checkthequality
ol therecording
in
progress,
youcan monitorthe playback
signalby settingthe Monitorswitchto
"Tape".
Inthe "Source"
position,
theinput
signalbelorerecording
is heard.
For
short-terminterruption
of recording,
press
the Pause
button
to setthedeckto the
record-standby
mode.
Toresume recording,
press
the Play
buttonagain.
BX-300
ToAC
Outlet
t:1
Notes:
. Besuretosetthisdeck'sTimer
switch
to"Off"
whenlimer
recording
or
playback
isnotto becarried
out.
. lftherecord-protection
tabs
ol the
inserled
cassette
areremoved,
timer-activated
recording
isnot
possible
andthe
deckwill
go
into
the
stopmode.
r+d8-
| ! 'n ,! | --Metat rape
I l_ , _l{ Adjustrecordinglev€ls
sothatthese
I i ,, :{ indicators
(approx.
+8 dB)tightup
L l- I :i \occasionally onsignal peaks.
. !_ " _! . -Normal.Position,
Ii t ij Ghrome-PosltionTapeg
| !_ ," _! | Adjusl
recording
levets
sothatthese
I !_ " _! | incticators
(approx.
+ 5 dB)tight
up
I i ^^ i I occasionally
on signal
peaks.
I r-'" -! |
I
t-,"-tl
lr_-"
rl
I t_.^_t I
t! -" rl
|I il|
L dBJ
The
abovevaluesshould
be usedas a general
guideline.
Actualrequirements
mayvary
lo a
cerlain
degree,depending
onthetapein use
andtherecording
source.
Timer
Recording
or Playback-
(1)
Establishconnections
asshown
inthe
chart,andswitchon
the
power
toall
comoonents.
(2)
Fortimer-activatedrecording,set
the
recordingleveltosuit theexpected
signal.
For
timer-activated
playback,
setlheOulput
controltothedesired
level.
(3)
Fortimer-activatedrecording,setthis
deck's
Timer
swilchto
"Rec".
Fortimer-
activated
playback,
settheswitchto"Play".
(4)
Setthetimertothedesiredoperationtime.
(S)
et tne
pre-selected
time,thetimerwill
supply
power
to the components,and
recording
orplayback willstart
automatically.

SpecialFeatures
1. Rec Mute
Bypressing
theRecord
button
oncemore
duringrecording,
therecording
signalis muted
toras long
asthebutton is keptdepressed.
Whenthe Monitor
switchissetto "Source",
theline
andheadphone
outputarenotmuted,
sothatit is possible
to continuouslymonitor
theinput
signal.
2. Master Fader
This
feature
permits
smoothandeasy
fades
during
recording
withouthavingto movethe
input
level
control.By pressing
the "Down"
section
ofthe MasterFaderbutton,the
recording
level
isgradually reducedto zero.
Afterthe levelwas reducedby pressing
"Down",
pressing
the"Up"section
will
automaticallyraiseit again to the previous
setting.
Youcanchoosebetweentwofadingspeeds.lf
youkeepthe buttondepressed,thefading
is
comparativelyfast.lf youreleasethebutton
immediately
after
pressing
it,thefadingis
slower.
Therespectivefadingmodeis indicatedby the
brightnessofthe indicators.
Note:
o Theoperation
of thefadercontrolcan be
changedfrom
"Up"to "Down"
or from
"Down"
to "Up",
butit cannot
bestopped
midway.
. TheMaster
Faderisoperativeonlyin the
record
andrecord-standbymodes.
When
thesemodes
arereleased,
thesetting
automatically
becomes
"Up".
3. Auto Repeat Playback
(1)Auto Repeatof One Complete Side
WiththeAutoRepeat
switchset to "On",
thefollowing
operatingsequenceis
repeated
whenthetape
endis reached
during
recording,
playback
or last-forward:
automaticrewind to the tape start *
playbackfrom the beginning
.- automatic
rewind whentape end is reached -
playbackfrom the beginning...
Repeat
playback
willalsobe performed
if
the
beginning
ofthetapeisreachedin
rewind.
(2)Auto Repeat Between Tape Counter
"OOOO"
and Tape End
Theauto repeat
tunction
canalsobe used
in conjunctionwiththe Memory
switch.
Wh€nthe AutoRepeat
switchandthe
Memory
switcharebothsetto "On",
auto
repeat
willbeperformed
between
thetape
counter
"0000" indication
andthetaoeend.
. When
theTimer
switchis setto "Rec"or
"Play",
theautorepeatfunction
is
inoperative.
o Auto Repeat
Tape
Start Recordin
g,
Playback,
Fast-Forward Tape
End
Rewind
<r+<r<i<-<-<-
Playback
(Playback/rewind
cycleis continuouslyrepeated.)
I
With
theMemory
switch
setto "On",
the
playback/rewind
cycleis repeated
between
tape
counter
"OOOO"
indication
andthetaoe
end.
Matchingthe CassetteDeckto Various
GassetteTapes
TapeSelector Eq(psec) Brand/Designation
Normal
Position
TYPE
EX(I) 120
/rsec
Nakamichi EXll
Fuji FR-l,
cT-l
Maxell XL I,
XL l-S
TDK AD,
AD.X
Chrome
(Cobalt)
Position
TYPE
SX(
II )70
llsec
Nakamichi SX,SXll
Fu.ii FR-ll,
cT-ll
Maxell XL ll,XL X-S
TDK SA.SA-X
MetalPosition
TYPE
ZX(M) 70
tsec
Nakamichi ZX
Fuji FRMetal
Maxell MX
TDK MA,MA-R
I Bias Tune Control
This
deckprovides a Bias Tune
controlwhich
permits
fineadjustment
ol thebiascurrent
afterthestandardvalueshave
beensetwith
theTape Selector
switches.Reducingthe bias
currentextendshigh-frequency
response,
but
distortiontendsto increase.
Reversely,
increasing
thebias
current
reduces
distortion
butcurtailshigh-freguency
response.
When
usingtapesfromtheabove list,
thebias
tune
control
should
be
left
inthe
center
click-stop
position.
When
usingothertapes,
adjust
the
biaswhile
comparingthe
sound
of
theinput
signal
andthe
recordedsignal.
This
comparison
canbestbedoneby recording
FM
interstation
noise
ora similarsignal
at
about
- 30dBto - 20
dBand
switchingtheMonitor
switch
backandforthbetween
"Source"
and
"Taoe".
(1
)lf therecorded
signal
soundsbrighter
than
the
original
source,turntheBiasTune
This
cassettedeckwas
calibratedatthe
lactory
withNakamichireference
lapes.To
obtain
optimumresults
andfully
realize
this
deck's
potential,
theuseofNakamichitapes
is
recommended.When
usingother
tapes,
you
shouldchoosetapes
lrom
the
list,whenever
possible.
control
tothe
right
(+).
(2)
lf therecorded
signal
sounds
dullerthan
the
original
source,
turntheBiasTune
controlto
thelelt(-).
(3)
Byrepeating
steps (1
) and (2)
and
monitoring
the results,
adjust
the BiasTune
controltominimize
any
sound
quality
differences.

Maintenance
Cleaning
It isveryimportantto regularlyclean
the head
surfaces
andtransport
section,
etc.
Contaminationcaused
bytiny particles
sheddedfromthetapeonto
these
parts
can
become
thecauseofdrop-outsandseverely
degradehighJrequencyresponse
and
wow-andJlutter
characteristics.
Perform
cleaningaboutonceevery10 hoursof use.
(1)
Removethecassette
holdercoverandpush
thecassette holderbackin.
(2)
Press
the Playbuttonandcleanthe
revolving
pressure
rollers
byholdinga
cotton-tipped
stick lightlyagainst
the roller
on
the
side
turningaway
fromthecapstan.
Troubleshooting
Condition
Becareful
thatthe cottontip doesnotget
caughtbetweentheroller
and
thecapstan.
(3)
Pressthe Pausebuttonto release
the
pressure
rollers
from
thecapstans.Now
cleanthecapstansandthesurfacesof the
heads
andtape
guides
wilha cotton-tipped
stick.Becareful
notto applytoomuch
force.Takespecial
care
notto damagethe
tapeandpreloadingguides andthetape-pad
lifter.
o Aftercleaning,makesurethat nocotton
' strands
areleltonanyofthe cleaned
pans.
. Incaseof severecontaminalion,
moisten
thecottontiowith
asmall
amount
ofcommerciallyavailable
cleaning
fluiddesignedespeciallyfor
this purpose.
Altercleaningwitha
cleaningfluid,waituntilanyresiduehas
completelydried
olf before
playing
a tape.
Tap€-PadLilter
TapeGuide Pr€BsurgRoller
Pr6rur€ Rollgr Rscdd l-laad Capslan
ProbableCause
Demagnetizing
Alter
a longer
period
ofuse,there
canbe a
build-up
ofresidualmagnetismin theheads
andcapstans.Suchresidualmagnetism
can
induce
noise
and
partially
erase
thehigh
frequencies
ofa tapebeing
played.
To
prevent
lhis,
you
should
demagnetizethese
parts
about
once
every50 hours
of usewiththe Nakamichi
DM-10Demagnetizer
(optional)
oranyother
properly
designeddemagnetizer.For
details,
refer
totheinstruclion
manualol the
demagnetizer.
Alwaysswitchthepower
to the
deckoff beforeusingthedemagnetizer,
Lubrication
Allimportant
moving
parts
of this cassette
deckarelittedwithlong-life,
oll-lessbearings.
Periodic
lubricationistherelorenotnecessary.
CleaningtheFaceplate
Clean
the
faceplate
onlybywipingitwitha
soft,dry
cloth.
Never
usealcohol,solvents,
ammonia
orabrasivecleaningagents.
Remedy
Tapes
does
notrun. 1. Cassette holdernotcompletely locked. 1. Press
Eject
button
andthenclosecassette
holderfirmly.
Recordmode
cannotbeentered. 2. Cassettetabshave beenremoved. 2. Placeadhesivetapeovertab
opening
oruse
new
cassette.
Excessive
playback
hiss. 3. Headis magnetized. 3. Demagnetizehead.
Unevensound
levels,drop-outs,
excessive
wow/f
lutter. Heads
and/orcapstansandpressure
rollersdirty.
Faultycassette. 5.
Clean
these
parts.
Replacecassette.
Imcomplete
erasure. 6. Erase
head
dirty. 6. Clean head
andpressure
rollers.
Distortedrecord/playbacksound. 7. Programmaterialitself
isdistorted.
8. Recordinglevels aretoohigh.
9. Headsdirty.
1O.
Wrongsetting
ol Tape Selector
switches.
7. Check
program
material.
8. Widedynamicrange
permils
someshort-term
overload,butexcessiverecordinglevelswill
cause
distortion.
Adjust
recordinglevels.
9. Clean
heads,
'1
0. Selectcorrectsettingforthetapeinuse.
Recordmodeis entered,
butcannotrecord. I1. Inputdisconnected.
12. Headdirty. 11. Checkconnections
12. Clean
head.
Cannot
playback 1
3. Outputdisconnected.
14.Headdirty. 1
3. Check
connections.
14. Clean
head.
Dull
high
frequencies. 1q
16.Headsdirty. TapeSelectorswitches
and/orEqualizer
switchnotsetcorrectly.
15. Clean
heads.
16. Selectcorrect
positions
for tape
in use.
Humheard
duringrecording
or playback.
1n 18.
17.Stronginductionlieldsneardeck.
Signalcableor connector
grounding
faulty.
Keepdeckawayfromamplifier,transformers,
fluorescentlamps,
etc.
Replacesignal
cables,
1a

Specifications
TrackConfiguration.. ....... tracks/2-channelstereo
Heads., .....3 (erase
headx
1,record
headx1,
playback
h€adx
1)
Motors. ..... <Tape
Transport>
FG
servo
brushless,
slotless,
coreless,
DD
motor
(capstan
drive)
x 1
DCmotor
(reel
drive)
x 1
< Mechanism)
DCmotor
(cam
drive)
x 1
Power
Source. ...... 100,1
2O,12O/22O-24O,22O
ot 24OVAC,
5O/60Hz
(According
to country
ofsale)
Power
Consumption... ......27W max.
Tape
Speed. 1-718
ips.
(4.8
cm/sec.)
rO.5%
Wow-and-Flutter...... ...... Lessthan
!O.O48o/o
WTD
peak
Less
thanO.O27o/o
WTDRMS
FrequencyResponse .......20H2-20,O0OHz
+3dB
(recording
level- 20 dB,
ZX,SX,EXI tape)
Signal-to-Noise
Ratio. ...... DolbyC-Type
NRon <7Ops, ZXtape>
Better
than70 dB (4O0
Hz,
3o/oTHD,
IHFA-WTDRMS)
DolbyB-Type NR
on <70 ps, ZXtape>
Betterthan64 dB (400 Hz,
3%
THD,tHF
A-WTD
RMS)
Total
Harmonic
Distortion. .. Lessthan0.90/0
(4OO
Hz,
OdB,ZXtape)
Lessthan1.0%
(400
Hz,0dB,
sX,EXiltape)
Erasure ..... Betterthan
60dB (1OO
Hz,+10 dB)
Separation .. Better
than36 dB (1kHz,
OdB)
Crosstalk ... Betterthan
60dB (1 kHz,
OdB)
BiasFrequency....... ......
105kHz
Input
(Line) .50 mV/30kohms
Output
(Une). ....... 1.0V (400
Hz,
O
dB,
output
level
control
atmax.)
2.2
kohms
(Headphones) SmWintoI ohms(4O0
Hz,0 dB, output
level
control
at
max.,
Fast-Wind
Time.
,
. ..Appro(.
80 seconds
(with
C-60 cassette)
Dimensions .430 (W) x 1OO
(H)
x 250 (D)
millimetres
1
6-l5/16 (W)
x 3-15/1
6 (H)
x 9-7lB (D)
inches
Approximate
Weight. .......5.6k9,
12lb
6oz
I Specifications
anddesign
aresubjectto changefor furtherimprovement
without
notice.
. NoiseReduction
System
manufactured
underlicensefromDolbyLaboratories
Licensing
Corporation.
o The
word"DOLBY"
andthe Double-D-Symbol
aretrademarks
of Dolby
Laboratories
Licensing
Corporation.
RM-200Remote
Control
Unit
Nakamichi
Corporation
TokyoOffice
ShinjukuDaiichi
Seimei
Bldg.
2-7-1Nishishinjuku,
Shinjuku-ku,Tokyo
Phone[phone]
T@lex: 2324721
(NAKAM
J)
0D04450A
Nakamichi
U.S.A.
19701
SouthVermont
Avenue
Torrance,
California 90502
Phone:[phone]
Optional
Accessories
ZX Metalloy
Cassetle
Tape
c-60, c-90
SX IISuperFerricobalt
Cassette
Tape
c-60,
c-90
SXFerricobalt
Cassette
Tao€
c-60,
c-90
EXII Ferricrystal
Cassette
Tape
c-60,
c-90
DM-1
0 Head
Demagnetizer
SF-10
Subsonic
Filter
SP-7
StereoHeadphones
Nakamichi
GmbH
Stephanienstrasse
6, 4000 Dijsseldorf
1
Phone: (0211)
359036
Corporation
0861220W Prinred
inJ.p.n