Nakamichi BX-2 User manual

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Nakamichi
IBX-2
2 Head
CassetteDeck
Owner'sManual
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AA
CAUTION-
TOREDUCE
THERISKOF
ELECTRIC
SHOCK,
DONOT
REMOVE
COVER
(OR
BACK).NO
USER-SERVICEABLE
PARTSINSIDE.
REFERSERVICING
TO
QUALIFIED
SERVICE
PERSONNEL.
I
RISKOFELEITRIT
5HIItK. DOTIOTOPEN
I
Thelightning
flashwitharrowhead
symbol,
withinanequilateraltriangle,
is
intendedto alert
theuserofthe oresence
of uninsulated
"dangerous
voltage"
within
theproduct's enclosure;
thatmay
beofsufficient
magnitudeto constitutea
riskofelectric
shockto oersons.
The
exclamation
ooint
within
an
equilateraltriangle
is intendedtoalert
the userof the presence
of important
operating
andmaintenance
(servicing)
instructions,
intheliterature
accompanyi
ng
theappliance.
Congratulations!
You
havechosena veryfinecassette
deck.
The Nakamichi
BX-2wasdeveloped
onthe basisof this company's
extensive
experience
with high-gradecassette
decks.
Whileincorporating
muchof Nakamichi's
superiortechnology
and
following
itssound
policy,
thisbasic
modeldelivers
high
overallcharacteristics
and represents
an extraordinary
valueat a moderate
price.
Pleasetake
thetime
to readthismanualinitsentirety
tofullyacquaint
yourself
with
this cassette
deck.
Thank
you.
NakamichiCorporation.
Connections
After
consulting
theinstructions
for your
amplifier
or receiver,use
theshieldedcables
withRCA
plugs(provided
withthedeck)
to
makeconnections
asshown
inthechart.
Takecarenotto mixup leftandright
channels.
While
makingconnections,
the
power
to thedeck andto the amplifiershould
be switched off.
Headphones
Standard
stereo
headphones
withan
impedanceof 8- 1 50 ohms
maybe
connected
to the headphone
jack.
Microphone Connections
TheBX-2possesses
onlylineinputfacilities.
Whenmicroohones
areto be used
for
recording,a separate
microphone
mixerwith
a lineoutput
mustbeconnected
to this
deck'slineinput
terminals.
Nakamichioffers
theootional
MX-1
00
Microphone
Mixer,whichprovides
three
inputs
for left,rightandcenterblend (L+R)
microphones.Topower
the MX-1O0,
the
separatePS-100
PowerSupply
is required.
2
CONTENTS
Connections
Safety
Instructions.
.
.
.
On CassetteTapes .
Controls
andFeatures
z
e
Precautions. ......... ..'
Operation ............ 5
Playback ......... 5
Matching
the Deck
to
VariousCassette
Tapes.
. ........ 5
Recording ........ 6
Timer
RecordingorPlayback.
............ 6
Maintenance. ........ 7
TroubleshootinS.
...... ....... 7
Specifications. ....... I
WARNING
TOPREVENT
FIREORSHOCK
HAZARD,
DONOTEXPOSE
THIS
APPLIANCE
TORAIN
OR
MOISTURE.
Pleaserecord
the Model
NumberandSerial
Number
inthespace
provided
below
and
retain
these
numbers.
Model
NumberandSerial
Number
arelocated
onthe rear
panel
of the unit.
Model
Number:
NakamichiBX-2
Seriaf
Number:@
J
to ACwalloutlet or
amplifier's
ACoutlet
to amplifier's
"RecOut" terminals(L, toamplilier's
"Tape
Play"
terminals
(L,
R)

Safety
Instructions
r
followingsafety instructions
have
been
\r6luded in compliancewithsafetystandard
regulations.
Pleasereadthem carefully.
1. ReadInstructions
- All the safetyand
operatinginstructions
shouldbe read
before
the applianceis operated.
2. Retain instructions
- The safetyand
operatinginstructions
shouldbe retained
lor futurereference.
3. HeedWarnings- Allwarnings
on the
appliance
and in the operatinginstructions
shouldbe adhered.
4. Followlnstructions- Alloperating
and
use instructions
shouldbe followed.
5. Waterand Moisture
- The appliance
should not be used near water - for
. example,neara bathtub,washbowl,
, kitchensink, laundry
tub,in a wet
arbasement, or neara swimming
pool,
etc.
6. Cartsand Stands- The applianceshould
be usedonly with a cart or standthat is
recommended
by the manufacturer.
7. Wallor CeilingMounting
- The appliance
shouldbemounted
to a wall
orceilingonly
as recommended
by the manufacturer.
OnCassette Tapes
Precautions
1. C-120cassettes
(playing
timeone
hour
perside)containextremelythintape
1, whichbreaks
or snarlseasily,is
Vsometimes subjectto stretchingandalso
isof lowsensitivity.
Therefore,
C-120
cassettes are not recommended
for
high{idelityrecording.
2. Donotpull
outthetapefrom
thecassette
housing.
3. Becarefulnotto turnthe cassettereels
withthe fingers,causing
tapeslackening.
4. Storecassette tapes awayfrom heat,high
humidity,
dust,andmagneticfields
such
as caused by speakers,TVsets etc.
CassetteTabs
Youcanprotect valuable
recordingsfrom
accidentalerasure
andre-recording
by
completelyremoving
theappropriatetabon
/ r top edge of the cassette.The tab for
pn .io" is located
onthetop left-hand
8. Ventilation
- Theappliance
shouldbe
situated
so that its location
or position
does not interfere
with its proper
ventilation.
For
example,the appliance
should
not besituated
on a bed,
sofa,rug
or similar
surfacethat may blockthe
ventilation
openings;
or placed in a built-in
installation,
such as a bookcase
or cabinet
that mayimpede
the flow of airthrough
the
ventilation
openings.
9. Heat- The appliance
shouldbesituated
awayfromheatsources
such as radiators,
heatregisters,
stoves,or otherappliances
(including
amplifiers)
which produce
heat.
1O.Power
Sources- The appliance
shouldbe
connected
to a powersupplyonlyof the
typedescribedin the operating
instructions
or as marked
on the
appliance.
1l.Groundingor Polarization
- Precautions
shouldbetaken so thatthe grounding
or
polarization
means
of an applianceis not
defeatdd.
12.Power-Cord Protection - Power-supply
cords shouldbe routed
so thatthey are
not likely
to be walked
on or pinched
by
itemsplaceduponor against
them,
paying
particular
attention
to cordsat plugs,
conveniencereceptacles,
andthe point
where
they exitfromthe appliance.
cornerasyoufacetheside.Use a small
screwdriver,andpush thetabdownto break
it off.
Donotleave the brokentab inthe
recess.lf you wish at a later dateto record
overa sideforwhichthetab hasbeen
removed,coverthetabopeningwitha piece
of adhesive
tape.
Cassette Insertion and Removal
(1)lnsertion of a Gassette
1. When
theejectbuttonis pushed
inthe
stop mode, the cassetteholderopens.
2. Insertthe cassette
intotheholder
with
the exposedtape facing downandthe
l3.Cleaning
- The
appliance
shouldbe
cleaned
onlyas recommended
by the
manufacturer.
'1
4.NonusePeriods
- The powercord of the
appliance
should
beunpluggedfrom
the
outletwhen left unusedfor a longperiod
of
time.
1S.Object
and Liquid
Entry - Careshouldbe
takenso that objects
do not falland liquids
are notspilledintothe enclosurethrough
openings.
16.Damage
Requiring
Service
- The
appliance
shouldbe servicedby qualified
servicepersonnel
when:
A. The power-supply
cord or the plughas
beendamaged;
or,
B. Objectshavefallen,
or liquidhas been
spilledinto
the
appliance;
or,
C. The appliance
has beenexposedto
rain;
or,
D. Theappliance
does not appearto
operatenormally
or exhibits
a marked
changein performance;
or,
E. The appliance
has beendropped,
or the
enclosure
damaged
lT.Servicing
- Theuser'should
not
attempt
to service
the appliance
beyond
that
described
in the operatinginstruction.
All
otherservicing
shouldbe referred
to
qualified
servicepersonnel.
label
of thedesiredsidefacing
you.
Gently
push
thecassette
holderback
into
thepanel.
Forprotectionof the tape and tape
transport,do not pressthe eject button
in any mode
otherthanthestopmode.
(2)Removal
of a Cassette
1. Pressthestop
switch.
2. When
theejectbuttonis pushed,
the
cassetteholderopens.
3. Removethe cassette.
L
Breakoff this tabto
protectSideA or 1
tromaccidentalerasure
Breakoff this tab to protect
Side B or 2 fromaccidental
erasure.

ControlsandFeatures
(1) Eiect Button
By depressingthis button,
thecassette
holderisopenedfor insertionandremoval of
a cassette.
(2) Power Switch
Pressingthis switchactivatesthe deck.
Depressing
it oncemore
switches
the power
off.Whenthe power
isswitched
on,the stop
switchindicatorlightsup.
(3) Timer Switch
Thisswitchpermits unattendedrecordingor
automatic
playback
in conjunctionwithan
odernalaudiotimer.
(4) Headphone Jack
Acceptsstandardstereophone
plug.
(5) Cassette Holder
Thecovercan beeasily
removedfor routine
cleaningof headss1s.
(*p. 7)
(6) Peak LeYe!Meters
Provideexact
indicationof peak levelsinthe
range
of -30 dBto *5 dB.
(7) Dolby NRlndicators
Whenthe DolbyB-TypeNRor the Dolby
C-TypeNR
is used, the respectiveindicator
lightsup.
(8) Memory Switch
Whenthis switchis setto "Memory
Stop",
thetapeis stopped
fromrewindor
fast-forward at the "0000" tape counter
indication.Whenthe switchis setto
"Memory
Play"andthetapeis rewound or
fast-forwarded,playback automaticallystarts
fromthe"OOOO" indicAtion.
(9) Rec Mute Switch
Bydepressingthisswitchduringrecording,
the input signalcan betemporarilycut off.
Duringoperation,the indicatorlightsup.
(1O) Rewind Switch
Forrapidtape
windinginthereverse
direction,
press
the << section oftheswitch.
(1
1) Fast-ForwardSwitch
Forrapidtape
winding
intheforward
direction,
press
the >> sectionoftheswitch.
(1
2) Stop Switch
When
the D sectionis pressed, thetape
motioncomesto a fullstopandthe indicator
lightsup.
(13) PlaySwitch
Pressthe > section of theswitch
to start
playback.
Whentheswitchis pressed inthe
recording-standbymode,recordingstarts.
Duringoperation,
theindicatorlightsup.
(14) PauseSwitch
Pressthe EE section
of theswitch
for
short-term
interruption
of recording or
playback.
Theindicator
lightsup.Toresume
recording
or playback,press theplay switch.
(15) RecordSwitch
Pressthe O sectionoftheswitchfor
recording.Thisdeckpossesses
a one-touch
recording-standbyfeature.
Bysimply
pressing
the recordswitchfromthestop
mode,the recording-standbymodeis
entered.Duringoperation,the indicatorlights
uo. &
(16) Output LevelControl
Adjusts
theline
output
level
andthe
headphoneslistening
level.
(17) Master lnput LevelControl
Used
to adjustthe input
(record)
levelforthe
left
andright channelsimultaneously.The
level
balancebetween
both
channelsin
recording
isadjustedwiththe balance
control.Themaster inoutlevelcontrolcan
alsobe usedto fadein or fade
outa
recording.
(18) MPXFilterSwitch
Used
to cutthe 19-kHzmultiplexcarrier
signal,
which
couldcause
misoperation
of the
DolbyNRsystemwhenrecordingfromFM
stereo broadcasts.When recordingfrom
othersources,this switch
should
besetto
off.
(19) TapeSelector Switches
Dependingonthetapeusedfor recording,
theappropriate
position
must
beselected.
Referto "Matching the Deckto Various
CassetteTapes"on page 5.
(2O) Equalizer Switch
Dependingonthetapeused
for recording
or
playback,
theappropriate
position
mustbe
selected.
Relerto "Matching the Deckto
VariousCassetteTapes"on page 5.
(21) DolbyNRSwitches
Used
to selectthe noise reductionsystem,
if
desired:either
the DolbyB-Type NRfor a
1o-dBimprovement
inmid-
and
high-
frequency
S/Nratio or the DolbyG-TypeNR
for a 20-dBimprovement.lf a DolbyNR
system
is used, therespective
Dolby
NR
indicatorlightsup.
(22) BalanceControl
Serves
to adjust thelevel
balance
between
leftandright
channel
in recording.
(23) Gounter Reset Switch
By pressing thisswitch,thetapecounter
indicationis reset
to "0000".
(24) TapeCounter
Can
beusedto index sectionsonthetape
andto check
thetape's
position
ata given
moment.
Startingfromthe"0000" indication,countis
carriedoutupto "9999" intherecord,
playback
andfastJorward
modes
("plus
count")anddownto "-999" intherewind
mode
("minus
count").
J
il
V
a

Precautions
1)
Afterthepower
to thedeck is switched
on,thetapecontrolbuttons
are
Inoperative
for appr.4 seconds,
untilall
circuits
havebecome
stable.
(2)
Aftertimerrecording
or timer
playback
is
completed,
theeject
buttonmaynotbe
operative.Toeject
thetapeinsucha
case,
do notpress thebuttonforcibly.
Set
thetimerswitchto Off,andthepower
switchto On.Thebuttonis now
operative
andthetape
canberemoved.
(3) Voltage Selector
ACvoltageis factory-set for the country in
which
youpurchased
yourBX-2.Thevoltage
selector
permits
re-setting
of mains
voltage
in casethedeckisto be used
ina different
counlry.
Note:
Safetyregulationsin certaincountries
prohibit
inclusion
of a voltage selector.
This
feature,therefore,may
beabsentfrom
your
deck. _ 120V
@m@
220_24OV
1
OpefatiOn Gheckoncemorewhether
allconnections
between
amplifier
andcassettedeckhavebeen
properly
estabtished.
lPlaybackl
(1)
Confirmthatthetimerswitchissetto Off.
- Switchonthe power
andinsert
the
jassette to be playedinto the cassette
\zholder.
(2)
Settheequalizer
switchto the
appropriate
position
for thetapein use.
(3)lf the tape to be playedback was
recordedwith DolbyC-Type noise
reduction,
press
the"C" switch
ofthe
DolbyNRswitches.
lf thetapewas
recordedwith DolbyB-Type noise
reduction,
press
the"B" switch.
The
respective
Dolby
NRindicator
lights
up.
lf the tape to be playedback was not
recorded
with Dolbynoise
reduction,
press
the"Off" switch.
(4)
Press
the > section
of the play
switch.
lMatching
the Deckto Various
GassetteTapesl
Tape Selector Switch and Eq Switch Settings (RecommendedTapes)
I SX,/TO&S Position
(5)
Adjust
thedesiredvolume
with
theoutput
levelcontrol.
(6)
Whenthetape
endis reached,
the
auto-shutoff
mechanism
automatically
stops the tape transport.lf you wantto
remove
thetape
during
playback,
first
press
the E section
of thestopswitch.
Fortemporaryinterruption
of playback,
press
the EE section
ofthepause
switch.Toresume
playback,press
the
play
switch
again.
o Thelogic-controlled
transport
ofthis
deckpermits
going
from
anytransport
modeinto
anyother
(i.e.
fromplay
to
rewind,
fromrewind
to fast-forward,
etc.)without
using
thestopswitch.
. During
playback
thepeak
levelmeters
displaythelevel
recorded
onthetape.
Readingsarenotaffected
byturning
theoutput level
control.
:)U120 pS Position
Tape
I
-E-
EX IL
SX IL
zx
Nakamichi EX
Nakamichi EXII
TDK AD,
AD-X
MaxeII UD,
UD-XLI,
XL-IS
Fuji FR-l
AMPEX GM-I
I Memory Switch
Bysettingthe memory
switch
to "Memory
Play",
playback
automatically
startsfrom
the"00O0"
tapecounter
point
when
the
tapeis rewound
or fast-torwarded.
By
settingtheswitchto "Memory
Stop",tape
motionduringrewind
or fast-forward
automatically
stopswhenthe "0000"
point
is reached.
I Dolby NR System
This
deckincorporates
boththeDolby
B-Type
andthe DolbyC-Typenoise
reduction
systems,which
canbefreely
selected.TheDolbyB-Type
NR
provides
approximately
1OdB of noisereduction
in
thehighfrequencies.
TheDolbyC-Type
NRachievesa S/N ratio improvement
of
appr.2O
dB inthe range
from2 kHz
to 8
kHz,
wherenoiseis most
readily
audible.
For
playback
of a tapewhich
was
recorded
withDolby
B-TypeNR,
the Dolby
NR"B" switchhasto bepressed.
For
playbackof a tape recordedwith Dolby
C-Type
NR,the "C" switchmust
be
presseo.
. TheDolbyNRsystem
doesnotreduce
anynoise
already
containedinthe
sourcesignal.
Youshould
therefore
userecording
sources
which
areas
noise-freeas oossible.
Ff*ncy (Hz)
FrequencyResponse
and NoiseSpectrumAnalysis
Tape Selector Switch Eq Switch Brand Name
_T,^6 q6t6^+^r_
ItAIL
EX SX ZX
Eq(rrsec)
I
.EL
70
Nakamichi SX
TDK SA-X
Maxell UD-XU,XL-[S
Fuji FR-ll
AMPEX GM-II
EX
ape Selector
.u-
SX
l
-E-
zx
Nakamichi ZX
TDK MA,
MA-R
ilaxell MX
Fuji FR-Metal
AMPEX MPT
. This
cassettedeckwillachieve
best
results
with NakamichiZX,
SXand
a EXtrcassette
tapes.
Thereforetheuseof
.lttnese tapeswhenever
possible
is
recommended.
lf othertapesareused,it isdesirable
to choosetapesfrom
this list.

lRecordingl
(1)
Confirm
thatthetimerswitchis setto Off.
Switch
onthe power
andinsertthe
cassette
to beusedfor recording
intothe
cassette holder.
(2)
Set
thetape
selectorswitchesandthe
equalizerswitchaccording
to thetape
in
use.
(* "Matching
theDeck
to Various
CassetteTapes")
(3)lf the Dolby
C-Type
NRisto be used,
press
the "C" switch
ofthe DolbyNR
switches.
lf the Dolby
B-Type
NRis to be
used,
press
the"8" switch.
The
respectiveDolby
NRindicatorlightsup.
lf no Dolby
noisereduction
isto beused,
press
the"Off" switch.
Whenrecording
fromFMbroadcasts,
set
the MPXfilterswitch
to On.
(4)Pressing
thecounterresetswitch
to bring
thetapecounter
indicationto "0000" is
convenient
to easilyre-locatethestarting
point
oftherecordingor usethe Memory
Playfeature.
(5)By pressing
the O sectionofthe record
switch,
thedeck automatically
goes
into
the recording-standby
(Rec/Pause)
mode.
Thered O indicatorinthe recordswitch
andthe green 0E indicatorin the pause
switchlightup.
(6)
Whilewatching
thepeak levelmeters,
adjustthe recordinglevelbygradually
sliding
upthe master
inputlevelcontrol
andadjusting
theleft/rightchannel
balance
withthe balancecontrol.
Forhintson proper
level
settings,
referto
the paragraph
"Record
LevelSetting".
(7)
Whenthe > sectionof theplay
switchis
pressed,
recordingstarts.
(8)
Whenthetapeendis reached,the
auto-shutoff
mechanismautomatically
stopsthetapetransport.
lf youwantto removethetapeduring
recording,
first press the tr sectionof the
stop
switch.
Fortemporary
interruptionof recording,
press
the !! sectionof the pause
switch.
Toresumerecording,
press
the
play
switchagain.
. By pressing
the > sectionof theplay
switch
whilekeepingthe O sectionof
therecordswitchdepressed,
recordingcan bestartedimmediately
without
enteringthe standbymode.
. lf the recordswitchis pressed
after
theplay switch,the recordingmode
cannot
beentered.
I Rec Mute
By pressing
the RecMuteswitch
during
recording,
thetape
continuesto run inthe
record
mode,
butthe inputsignalis cut
offandthe indicator
lightsfor as longas
theswitchis being
keptdepressed.
This
canbe usedto insertblankspaces
ona
tape,etc.
Thelineoutput
andthe
headphoneoutput
arenotmutedduring
thisoperation,
sothat it is possible
to
continuously
monitorthe input signal.
I Record Level Setting
Thisdeck'sLED
levelmetersare
freeof
"overshoot"
problems
anddisplay
peak
levelswitha highdegree
of accuracy.
(LH)
position
tapeformulations,
"Chrome"
position
tapefotmulations:
Adjustrecord
levelssothatthe
+3dB indication
lightsuponly
occasionallyon
thehighestsignal
oeaks.
For
good
recordings,
it isessentialto
maintaina highsignal-to-noise
ratio.lf the
recordlevel
is settoo low tapehisswill
impairthe playback
sound
quality.
Onthe
otherhand,setting
the record
leveltoo
highwillcausedistortion.
Referto the
chartbelowas a guideline
to set
recording
levels.
TheDolbyC-Type NRsystem
incorporated
inthisdeck possesses
advancedcircuitry
to prevent
distortionevenat high
saturation
levels.Thereforerecording
levelscanbesetin thesame
wavas
withoutnoise
reduction.
"Metal" position tape formulations:
Adjust
recordlevels
sothatthe + 5 dB indication
lights
uponlyoccasionally
onthe highestsignal
oeaks.
_ *dB _-l
I PeakLevel I
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LdBJ
Asdilferenttape
tormulations
haveslightly
differentoverload(headroom)
characteristicq
the requirements
mayvaryto a certain degree
whenusingditferent
tapes.
[Timer Recordingor Playback]
This
deckincorporates
a timer-startfeature,
whichenables
youto makeunattended
recordingsor start playback
at a pre-
selected
timewiththe useof a timer.
(1)
Establish
connections
asshown
inthe
chart.
(2)
Insertthetape
to beused
for recordingor-
playback
andturnonthe power
to all
components.
(3)
For
timerrecording,setthe recording
levelto suittheexpectedsignal.For
timer
playback,
settheoutputcontrol
to the
desired
level.Check
if allcomponents
are
set up properly.
(4)
Fortimer
recording,setthisdeck'stimer
switch
to "Rec".
Fortimer
playback,
set
theswitchto "Play".
(5)
Set
thetimer
to thedesiredoperation
time.
(6)
Atthe pre-selected
time,
thetimerwill
supply
power
to thecomponents,andthe
deckwillautomatically
startrecording
or
playing.
. Besureto setthedeck'stimerswitch
to "Off", when
thetimerrecordingor
playback
featureis not desired.
I

Maintenance
' d and Transport Cleaning
\/ veryimportantto regularily
clean
the
surfacesof the headsas wellasthe
capstan,
pinchroller
andallother
parts
whichcomein contactwiththetape.Tiny
particles
shedded
from
thetapeontothese
oarts,
aswellas dustaccumulationsetc.
becomethecauseofdrop-outs,andseverely
degradefrequencyresponseand
wow-andJluttercharacteristics.
GleaningProcedure
Removethe cassette holdercover.Use
cotton{ippedsticksor the like
(available
in
audio
stores,etc.)to carefullyandwithvery
light
pressure
cleanthepartsindicated
in
white
onthe illustration.Incasesof severe
contamination,dipthe cottontip in cleaning
fluid.
Cleaning
isfacilitatedif - after
removingthe cassetteholder
cover
- the
coveris closedagainandthe pause switch
depressed,therebyraisingthehead
---embly.
b pressure rolleris verydirty,
press
the
lry switchandcleantherollerwhileit is
turning.Atthis time,becarefulthatthe
cotton
tip doesnotgetcaught
between
the
rollerandthe capstan.Aftercleaningthe
roller,
putthe deck into
thepause mode
againandcleanthe revolvingcapstan.
Troubleshooting
Condition Probable Cause
Becarefulnotto applytoo muchforcein
cleaningastherespective
parts
are
criticallyaligned.Takespecialcarenotto
damagethetape
guides.
Donotusetoo muchcleaningfluidand
give
thecleaned
surfacessometimeto
dryoff completely
before
playing
atape.
When
youhave
usedcotton-tipped
sticks,
becareful
not
to leaveanycottonstrands
onthecleaned
parts.
Demagnetizing
Aftera longer
period
of use,therecanbea
build-up
of residual magnetismin headsand
capstan,etc.
Such
residual
magnetismcan
inducenoise
andimpairthehighfrequencies
during
playback.
To
prevent
this,
youshould
demagnetizethese
parts
aboutonce
every
50 hoursof usewiththeoptionalNakamichi
DM-10Demagnetizeror another
properly
designeddemagnetizer.
Fordetailsonthe
demagnetizing
procedure,
please
consultthe
demagnetizer'sinstruction
manual.
. Alwaysswitch off the power to the deck
beforestartingthedemagnetizing
orocedure.
Gleaningthe Faceplate
Thisunit
shouldbecleanedonlybywipingit
witha soft,dry cloth.Neverusealcohol,
solvents,ammonia
or abrasivecleaning
agents.
Lubrication
Allimportantmoving
parts
of thisdeckare
fitted
withlong-life,
oil-lessbearings.
Periodic
lubricationisthereforenotnecessarv.
Remedy
Erase Head Rec/PB Head CaDstan
Tape
Guide Tape
Guide PressureRoller
Taoe
dose not run. '1.
Cassette
holdernot
comoletelv
locked. '1.
Presseiectbuttonandthenclosecassetteholderfirmly
qecord modecannot beenteJed. 2.Cassette
tabs havebeenremoved. 2.Place
adhesivetapeovertabopeningor usenew
cassette.I\zEXcessive
playback
hiss. 3. Headis magnetized. 3. Demagnetize head.
Uneven
sound levels,drop-outs,
excessivewow/flutter. 4. Headsand/or capstanand pressurerollerdirty.
5. Faultycassette. 4.Cleantheseoarts. 5. Reolacecassetle.
Incomplete
erasure. 6. Eraseheaddtry. 6.
Cleanheadandoressure roller
Distortedrecord/playbacksound. 7.Programmaterialitsellis distorted.
8.Recordinglevelsaretoohigh.
9. Headdirty.
lO.Wrongsettingoftapeselectorswitches.
7.Check
program
material.
8.
Widedynamicrange
permits
someshort-termoverload,
butexcessive
recordinglevelswillcause
distortion.
Adjustrecordinglevels.
9.Clean
head.
'lO.
Selectcorrectsettingforthetapein use.
Recordmodeis entered,
but cannot
recoro. |1.
Input
disconnected.
12. Headdirty. 1
1.
Check
connections.
12.Cleanhead.
Cannotplayback 13.Outputdisconnected.
14.Headdirty. 13.Checkconnections.
14.Cleanhead.
Dullhighlrequencies 1
5. Head
dirty.
16.
Tapeselectorswitches
and/orequalizerswitchnotset
correclly.
1
5. Clean head.
16. Select correct positions for tape in use.
L
Humheard
during
recording
orplayback. 17.Strong induction
fieldsneardeck. 17.Keepdeckaway from
amplifier,transformers,fluorescenl
lamos.etc.
18.Signal
cable
orconnector
grounding
laulty 18. Replace
signalcables.

Specif
ications
Specifications
TrackConfiguration.. .......4tracks/2-channelstereo
Heads.. .....2 (erase
headx 1,record/playbackheadx 1)
Motors
(Tape
Transport) ... .
DCservomotor
(capstan
drive)x 1
DCmotor (reeldrive)x 1
PowerSource. .. . 1O0,
'12O,12O/22O-24O,22O
or 24OYAC;
50/60H2
(According
to countryof sale)
Power
Consumption... ......23 Wmax.
Tape
Speed. 1-718ips.
(4.8
cm/sec.)
io.S%
Wow-and-Flutter..... ....... Lessthan
0.1't%
WTDPeak
Lessthan 0.06"/0
WTDRMS
FrequencyResponse .......2O HZ-20,OO0Hz
(recording
level
-2O dB)
Signal-to-NoiseRatio ....... Dolby
C-TypeNRon <70ps, ZXtape>
Better
than68dB (400Hz,
3%
THD,IHFA-WTDRMS)
DolbyB-Type NRon (70ps, ZXtape>
Betterthan62dB (400Hz, 3%
THD,IHFA-WTD
RMS)
TotalHarmonic
Distortion. ..Lessthan1.O%
(400 Hz,
0 dB,ZX, EXII tape)
Lessthan 1.2"/o
@OO
Hz,
0 dB,SXtape)
Erasure .....Betterthan60 dB (1
00 Hz, 0 dB)
Separation .. Betterthan
36 dB (1kHz,
0 dB)
Crosstalk ... Better
than
60dB (1
kHz,
0 dB)
BiasFrequency....... ......
105
kHz
Input
(Line) .50 mV30 kO
Output
(Line). ....... O.sV
(400
Hz,
0 dB, output
level
controlat max.)2.2kO
(Headphones) ...
... .2.2 mW(400Hz,
O
dB,
output
level
controlat max.)
8 O load
Dimensions .490(W x 110(H)x 2s0(D)
miilimeters
16-15/16(W)x 4-5116(H)x 9-7l8(D)
inches
ApproximateWeight. .......5.5 kg
12lb.2 oz
a
a
Specifications
andappearance
designaresubjectto changefor furtherimprovementwithout
notice.
DolbyNRunderlicense
fromDolbyLaboratories
Licensing
Corporation.
Theword"DOLBY"
andthe Double-D-Symbol
aretrademarks
of DolbyLaboratoriesLicensing
Corporation.
Nakamichi
Corporation
Tokyo
Office
ShinjukuDaiichiSeimei
Bldg.
2-7-1
Nishishiniuku,
Shiniuku-ku,Tokyo
Phone: [phone]
f elex'.2324721
(NAKAM
J)
0D041007
Nakamichi
U.SA.
Corporatio
n
1101
ColoradoAvenue
SantaMonica.
Calif.904O1
Phone
: [phone]
Telex: 652429
(NAKREI
SNM
)
Optional Accessories
ZX Gassette TapeC-60, C-9O
SXCassetteTapeC-60, C-90
EXII CassetteTapeC-60, C-9O
EXGassetteTapeC-60, C-90
SP-7 StereoHeadphones
Nakamichi
U.SA.
Corporation
220
Westbury
Avenue
CarlePlace,
N.Y.
11514
Phone:
(516)
333-5440
I
\J
in Japan
DM-1
OHeadDemagnetizer
G8209308 Printed