Shure Phonograph V15 Type IV User Guide

V15
l'ype
Stereo Dyneticw Phono Cartridges
IV
the
IV
The creation ofthe force in innovative engineering. The challenge was to design a cartridge that would transcend all existing cartridges in musical transparency, technical excellence, and uniformity. The unprecedented research and design disciplines that were brought to bear on this challenge over aperiod of severalyean have resulted pickup system that exceeds previous by a
significant degree - not merely in one parameter, but in totality. In fact, this pickup system has prevailed simultaneously over several extremely re-creation problems which, until now, have defied practical solutions. Most of all, this is an eminently musical cartridge which is a delight to the critical ear, regardless of programmaterial, or the rigorous demands of today's most technically advanced recordings.
V15
me N is something of a tour de
in
an altogether new
performance levels
difficult music
..An
elegant
The
V15
Type N is a Stabilized, Static-free, Super-Trackability cartridge-stylus system. The next few pages will explain the following advantages of the SUPER TRACK
Demonstrably improved trackability across the entire audible spectrum especially in the critical mid- and high-frequency areas.
Dynamically stabilized tracking configuration dramatically reduces overcomes record-warp caused problems, such as fluctuating tracking force, varying tracking angle and wow.
Electrostatic neutralization of the record surface minimizes three separate problems: static discharge; electrostatic attraction of the cartridge to the record; and attraction of dust to
NTY
solution
system:
to many prevalent problems
the record.
-
h
effective dust and lint removal
system.
A
Hyperelliptical stylus tip
both harmonic and intermodulation distortion.
Ultra-flat response - individually
tested to meet all specifications.
Reduced dynamic mechanical impedance performance at ultra-light tracking forces.
dlows superb
Contents:
Trackability Warp Static Dust Stylus Information Installation Operation Care and Cleaning 13-14
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Specifications and
Dimensions
Warranty
.........................
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9,
READ
4-5
13, 15
10-12
14-15
ON
..6
7
8
13
16
...
The new frontiers
'Trackability - thr abilit>, of the stylus to stay in contact with both
walls - remains the one ove~whelming measure of a car-
groove tridge's overall unattainable excellence in stylus
However, consistent additiunal ever-present factors as warp, static, lint and dust especially when these factors combine with \vide dynamic range "hot" permit the stylus to achieve and mainta~n unprecedented tracka­bility with a cbnsistency never before possible.
In the following chart, the shaded en\~elooe at right reprrsrnts recommended theoretical limits of rrcord rutting velocities 'The scattered points are the "hottest' rrecordrd velocities actuaUy measured on d~fficult-to-track records though a cartridge nith rnodcratc. trackabllity \\ill be able to track all the recorded velocities encornpassed rutting stylus limits, substantially higher trackability is needed to
~xrordrd vrloritirs actually found on tuday's
track
I>ve
IV
any othrr rxisting rart~idgp Thr run,r shonm is for 1 gram tracking force.
4
performance. The chart at right shows a hitherto
tip-sa~ing forces.
tracking has always been challenged by such
~cordings. The many new design features of the
of actual Ivalv slenals found on records The shadrd area
tracks more of the 'I~ottest" points at a lo\\, stylus f~rcp than
By increasing thr tracking force to
.
of
trackability
trackability, at super-light, record- and
Vl5
areaat bottom left =presents thr
L,
\\ithin the theoretical
discs
The
1-1/4
grarns, evcri morr of
Type
Al-
V15
these polnts - xirtually all r~rords pruduced thus far - will be tracked Also, note the revolutionar) subaudible warp signal range tracka­hility charactelistics of the Super Track on Page
Six.
-
N
'Cartndgr-ton? arrn system trarkahllity as rnounted In tune
am
at 1 gram tracking furce
SYSTEM
THEORETICAL RECORDED VELOCTES
IVTM,
TRACKABILITY'
discussrd in detail
SME
3009
Coping
with
"hot"
recorded
signals
The "hot" signal problem
The stylus cannot track the hea\ily modulated signals found on Inany of the newest records
Its symptoms
dlstort~on and buzzlng sounds. While mistracking can occur at any frequency. extreme mistracking occurs most at high frequencies.
mistracking can ineparably damage the record groove.
Extreme
The stylus mistracks and produces
...
The Super
The
V15
cally increased trackahility as provements
A.
The effective stylus mass of the conventional moving system has hrrn
in
figure at lefty and a [No. improve trackability in the critical mid-and
B.
Incorporating
tem
promises. The new bearing system is independently optimized for low frequencies and for high frequencies so that trackability is enhanced across the entire audio spectrum.
V15
The that results in an elongated tip-groove contact area The ne\v tip provides as much as a tional biradial (elliptical) stylus"
"See graph on Page Nine
Track
Type
IV
has a
lotvered hv utilizine
21
The reduced effective mass of the new structure helps
(No.
3)
has bypassed prex<ously necessary design com-
Type N has a
IVTM
total design solution
new stylus assembly
thr result of two significant im-
a telescooed shank structure
&w iightwkight high-energy
a newly designed two-function bearing sys-
Hyperelliptical nude diamond tip
25%
reduction in distortion over a conven-
designed fnr dramati-
(No
magnet
high-hquencies.
[No
1
4)
Our
war on warv...
TURNTABLE
CONSTINT
ONSTANCE-
TURNTABLE
The warp problem
Suhaudible record warps and low-frequency arm-cartridge resonance signals
Its ~ympfoms
low frequency warps (between trackability chart on Page result in gross changes in the distance between the cartridge and the record The distance change force and th? vertical tracking angle, illustrated in the sketches above,
signal wow, and, occasionally, amplifier and/or speaker over-
load
6
Interfere \\ith the ability of the stylus to track audio
Reactions ofthe playback system tovery
0
5
Four) on the record surface can
rhis can cause groove skipping, cartridge bottoming,
o
I
HOK CIZR~RI~GF
'
THE
V15
and 8 Hz as shown in the
alte~s the stylus tracking
17,
'TYPE
Worst of all, trackabllity at these warp-caused changes in tracking force At some very low frequency (typically from
am,-cartridge
the warp frequency, all the enumerated symptoms are exagger­ated. In addition, there is a sudden, very large increase in output at resonance.
cornbination has a resonance frequency. When
am-cartridge resonance frequency coincides with the
all
frequencies is dimin~shed by
5
to
The Super Track IVTMtotal design solution
A
viscous-damped Dynamic Stabilizer
stylus assembly
N
resonance frequency and attenuate the am-cartridge system re­sonance effect. The following graph shows the output at resonance with and without the Stabilizer
-
described on Page five to raise the --cartridge
-8%
WITH
DYNAMIC STABILIZER
combines with the
15
Hz), the tone
new
The Dynamic Stabilizer is viscous-damped to resist sudden changes in motion, such as those caused by subaudible warp. Instead, the damping ensures that the tone irregularities of the record surface, even at the frequency of arm­cartridge resonance. The original cartridge-to-record distance is thus maintained, and vertical tracking angle and stylus force remain constant! Stabilizing the distance, angle, and force ensures that the full tracking capability of the cartridge is realized at all times.
arm
will
follow the
tracking
The double-faceted problem of electrostatic charges
...
The static problem
A. Static electricity on the record surface at­tracts the cartridge to the record. B.
Static electricity on the record surface is dis­charged through the
-
stylus.
Its
s~II~P~o~s
nipresent and unevenly distributed. Therefore, they attract the cartridge unevenly and change the
u
,,,,,,,,
FIBERS
RECORD
A. Static charges on the record are om-
ann-to-record distance, the
IUNO
vertical
tracking angle, and stylus tracking force. The result is
undesirable wow and flutter.
B.
The static discharge through the stylus and amplifying system
can cause annoying pops and clicks.
The Super Track
The fibers in the Dynamic Stabilizer that look like an off-center dust brush are actually electrically conductive. The fibers ride on the surface of the record, pick up the static electricity and discharge it to ground, much like a miniature lightning rod*. As a result, the record surface is electrically neutralized.
Static charges on the record can be caused by contact record jacket, the turntable mat, or other records.
record-contact fibers continuously sweep the inner groove charge just ahead of the stylus, preparing the groove about to be played.
The static charge is thus prevented record distance, or from causing static noise in the amplifier and loudspeakers. [Clicks and pops due to other causes may mask
D
some of the reduction of static noise.) The removal of static charges stabilizes tracking force during the entire record playing process.
"In
fact, the static Dynamic Stabilizer the
record
discharge
is
in the "Up'position and thrfihr~.~
suiiacc
fcature
IVTM
total design solution
fmm affecting the am-to-
will
be
reahonably
rffertive
arr
with the
Duringplay, the
even when the
not
in aontactnith
I
Cleaning
up
Dust
...
l
I
The dust problem
record, or in the recordgmove result in an accumulated "dust ball" on the stylus tip which interferes with pickup of "clean" signals.
Its sp toms
jumping, anyultimate record damage can he caused when the
collects the dust instead of tracking the record signals.
stvlus pkicles that accumulate and foul the tip accurate irack­ing and can cause loss of contact with the record surface, with resulting gross distortion.
DUS~
particles on the surface of the
Faulty tracking, distorted signals, .%move
Impact
The impact problem
dmpped onihe recokl, the delicate stylus assembly is subjected to the full shock bounce aamage.
Its sppt0ms
even inoperative. The record is eral audible "pop" points.
across
at
contact,
the record and
The stylus may be permanently damaged,
When the arm is accidentally
Because
the stylus
create
permanently impressed with sev-
several
is
points
of
it
can
gmove
The ~uper'I'rack1~~~ totaldesign solution
~h, reco~-contact fibem in the vamic Stabilizer are onsed
of more than
---- ~ --
~-~~~-
diameter of approxi&ateli fit down into the groove, removing interfering dust and sweeping the record clean. And, dust is not ground into the gmove walls.
Protection...
The Super Track 1VM fofal design solution
In its mrmal operating position, the Dynamic Stabilizer is a shock absorber which cushions the impact hom an accidental arm drop. The Dynamic Stabilizer takes the force of the blow, and eliminates further bouncing of the stylus
~
10,000
ultra-fine strands. Each strand has a
7.6
microns
1.0003
in.). These strands
7
-
corn-
The
Hyperelliptical
BIRADLAL IELLIPTlCALl STYLUS
SUCH AS
IN
V15
TYPE
Stylus
I11
tip
HYPERELLIPTICAL
OF THE
V15
TYPE
STYLUS
IV
harmonlc dlstortbon
2nd
Average both channels.
8
kHz. 5 cmisec peak recorded veloclty
Intermodulation distortton Average both channels, 3 kHzil.5 kHz
4.0% 4.0%
The Hyperelliptical nude diamond tip configuration of the significant advance in tip design for stereo sound reproduction. As the above figures show, its "footprint" (represented by black oval1 is longer and narrower than the tradi­tional Biradial area. Because the Hyperelliptical footprint
V15
Type Nrepresents a
IElliptical) tip-gmove contact
as
a result of the
Hyperelliptical
Biradial
geometry is narrower than both the and long-contact shapes such as the Hyper-
is
preeminent forreproduction ofthe
bolic,it Stereo-cut groove. In fact, optimized contact area of the tip, both harmonic distortion !white bars in
right) and intermodulation distor-
graph at tion
(black bars1 are dramatically reduced.
2.4%
HERICAL
b
BOLlC BlRADlAL HYPERELLIPTICA
HARMONIC AND INTERMODULATION
DISTORTION FOR VARIOUS TIP SHAPES
2.596
Step
1:
stylus removal and replacement
don't slip and damage the stylus tip
Step
2:
electrical connections
This cartridge has four temlnals wlth a separate ground terminal for each channel.
stereo, termma1 groove wall1 Terminal loutslde groove wall1
10
"L
and its gmund terminal
"R'
and its ground temlnal
a>
shank
'LG"
represent the left channel [inside
'KG"
mpresent the right channrl
Connect the cartridge in many tone arms, lead cartridge's color coded terminals
LEFT CHANNEL
WHITE
LEFT CHANNEL
GROUND
BLUE
Step
The cartridge has
For
hardware
spec~fir
details. such
as
show in the illustration below Note that,
wiring is color coded and rnatches thls
RIGHT CHANNEL
RIGHT CHANNEL
GROUND
u
-GROUND TAB
3:
mounting the cartridge
12.7
mm
ill2
1s
prumdrd,
in I mountlng centen Mounting
iRef~r
to the tone
as
the nerd for spacers
arm
manual
1
RED
GREEN
for
h~rth~r
DO VOI KLPL4CI. THF bYII.1'5 l'YlIl. LLLC IRIC \L (01­\tC.TIO\S )\Kt \1-\DL .AYD PIELLU
Thr liio llnslc
1
e
L-sc
t,,,th
mi
IklPORT~ST:
ihrll that has
mounting
\lountin;:
thp cartrldgr
lhrcaded clcnrancc hulrs \luunt,ng thc cnrtndge lh~radcd niountln;: lholrs
thr
thin
phallr
mrthr~d\
thc shell
rrtalncrpru~ydrd
Ihr Iretalnci. holds the
mrthr~d
I\hcn
unthr.r.tdrd
THF. \IOU\TISG IS (O\I~
mrth<~d\
di.~
In
a
lilrir
.rrn
tn
n
tun? arm
In
thp hardi\a~r
11
ur
usng
screiis
on
thc cn~.tndgr
mcthod
I
mounting
rlvarance holcsl splett
she41 that has
hrll (hit
p.ic
phi
F
tmrthid
21
In
d
thp
un-
h.th
klii
vlthcr-
CORRLC? SCR6\.\' LbhGTH IKCORRECT SCRL\\ LLXGill
1
MbTHOD
OF MOUKTING THE
CARTRIIJGE IS SHOb\'II BELObV
,-
.
~
,-:_____SpaCCRS
..
.
(IF
NECESSARY)
METHOD Z OF XfOI!.UIING THk.
CARTRIDGE 15 SHOWN BELOW
,*-,
uz,SPACBS
.
.i
THREADED HOLES
CASTiC RETAINER
PUSHONTOSCREWS
IF NECESSARY
scniws THREAD TONE
<AmNE
!-"
ARM
INTO
iN
SHELL
Step
4:
setling the tracking
DYNAMIC STABILIZER
POSITIOKS
1
'"UP
2
DYNAMIC STABILIZER "OPERATING
3
"GUARD
CONDUCTIVE
Rcplncc thc st>lus
TRACKI\(; FORCE
u<th the
I
his c nrtndge giarna posltlon must .~lw I,? dr.r.r,mm<,<l.+lt.~il
Tllor.rlo~r
In
the cartridge
dynamic stabilizer opcratin
1..
rlc,\igned
\\hen
thr ~~siui~s-d.~mpc~rl Ih~l~irrllr Strilnilw~
~PP
lllubli ittl~ri
uat,
ior
.li~~\.vi
thr tollrli$illg Srttlllgs
sec
Stcp
g...
.i
\t>lus tlp 11.arhlrig
~t
~\i~t\
ii
tor??
In
thc tutnl tunr
11
ir>ri.i,
rang?
011
the
wvordc~f
a1.111
tl.ii.king fmir wttilig
and
antiskating force
ot
0
75 to
IS
171
12.5
tllc OPCI-atlng
0
i
grrirn\
that
To
notatrl
this
at
\\hen
ualrig
settmg thr trn~hnp rlries
I,?
f<,~.rt,
with the
4STISK\II\CI Srt thi, ni~l~rkati ~nrr.l~;in~s~i~ .~rvol.dlngtu tii~ns
iul~
an
trarlang
on
thc
~rccurrl
tho Dyna~rilc Stalillirrr
ii~ll
hr dynamic
SOTE
Do not
the cart~idgr
rlosltlon,
Cac
,in
r
aptling
~orve
the
stylus tip
0
75
grams
1
25
grains 175
cxtrrnnl gauge
fu1.c~
torrr
as
that sho\\n
rxrr~d
15
or
125
TOKC5
.~ntl\k.!tlng
tCul~ltirli
wrh
loch the D\n.%m~ Stdhll~~~r
iholtn
x\~th
stabilizer
used
ararns
2
as
tor
th~
nnli
111r < art~nclge In
.+nd
\iILL
\Or
In
thc firit roli~lllrl
up...
the maximum trarkingforcrs of
\\it11 the Dynamic Stabilizer
\\hen
usrd
1rlr.r.r
rorrrspcrn~li~,;: lil tlir lol.11 toni.
irl
hart .ilru!i,
thr Shurt,
aho\r
iisc
the r\tr.~
IPPE.iR
\\~th lhr
ttlv
I
grams
bFG-2
Snlus
in
lliv
I\hrn
Ihr Ll>~r.tiir~c Stnbllizcr
O
-\TTHF
I
In
U\n.imlc
trillr
.I!
111
~rl.~nuf.ii
For?
up
positioll and
5
gram, 1,111
STl'l.l-b TIP
1
75
grams iihrn
thc 'operating'
Stnixlurr
11111.1 s ill~i~
.ir.!n
Ldug,~
tx
I'hr
in
th
irarhlng
i>ff-,rt
for
set
tip
\&z,d/,"w
'-
CUE
STRIPE
Step
5:
operation
Beforr
playng thr fir51
In
Stabil~zrr
cmmplrl ,Uthr~ugh this cartildge i\,ll track t~p f<,rr~ of la
NOTE See further instructions under Cleanlng
1
RECORD FOKXWTS
Step
Forbrst
,if
the opcl.atlilg'positian
0
lilcrraac,
thr tracking
NOTE ON COL1P~%,,21RlLITY \\'ITH V4RIOL'S
6:
prrfurmanrr,
Ill? Dynamic Stdt,illzcr rrgulnrly
75
grams, it
cleaning
rccurd.
ral.cfully plncp thr, pnam~c
50
that 11 floats helon thc
ma,"
he
f0n.r
for
rlean
bc>th thc st>lu\ tqi and thc fillr15
records
dcsirablr.
In
optinrum tresults
som-
at a at\lus
toiir
arrrla
CLEANING THE DYNhVIC STABILIZER Use the supplied brush the dust out of the fibers Brush the fibers long between the fibers as well as anv mat of lint on the surface. Take care not to catch the the Dynamic Stahll~zer brush.
CLEANING THE STYLUS TIP Use the
supplled brush Alwa s brush the stylus fmm back to front; never brush side to side. An alcohol can he used as lutions may cause stylus
Afler
NOTE. mg been usedl, make certain that no lodged between the cartridge body Stabilizer,
immoblllzlng 11 A simple method is to move the
Stabillrer carefully
Mill
ensure proper performance
to make
cenaln that no foreign matter has accumulated If
it
has, follow the recommended htylus tip cleaning
method
"d~y".
Use
no
fluids.
using a hack to front movement.
enough70 remove the fine
sty1us"shank or tip when clean~ng
orwipe tiestylus from front to back, or
or
a
installat~un
alcohol-distilled
cleanin agent. Commercial cleaning so-
damage or corrosion.
lor
a
prnlonged period
from
"up" to
"guard"
Carefully clean
water solution
foreign
and
the Dynamic
several times This
Also
check the stylus tip
particles
of
not
matter
hav-
has
Shure
FRONT
V15
ClOCV
me
IV
Dimens~ons
presemg stylus life
1.
R~ilow turntable
ant~skating
2.
Do not handle the tone arm while it is In vperatlon since
thls may cause the arm to sbveep
3
If
11 is necessary to manually place the tone record groove while turntable is rotating, release it as the wnamic Stabilizer sets do- on the pngages the record gmove
4.
Correct improper set-down adjustment or malfunction the turntable changing mechanism to prevent the stvlus from strik~ng
the
records than turntable manufacturer recommends
5.
Take
care
assembly and the cartridge and shell asssmhiy into the tone
arm
receptacle
6
Use
pmper vertical tracklng force setting A>r.rach cartr~dge
7
Do
not
8.
When dusting th; turntable protect the stylus wlth the Dynamic Stabdizer locked in thp guard position
or
tone arm instructions when adiusting
force in the suspension system of the tone arrn
across
the record.
arm
record
or
as the stylus
edge
of the turntable
to properly insert the stylus into the
use
damaged records
or
cord
Do
not
siack
cartridge
in the
mom
of
Shure
I
I
pn
UI
5
n"
Frequency Response: Typical Trackability
cm/sec peak recorded velocity].
Output Voltage
channel
V15
l3q~
Specifications
-
TYPICAL FREQUENCY RESPONSE ENVELOPE
-lo
10 to 25,000
im
SME
la1 1,000
Hz,
IV
and
V15
IV-G
I
rmo
FRECGWX
400 Hz
5 cm/sec peak recorded v~lo~ltyl: 4.0 mV per
Tone
Hz
Arm
-
29
IN
HERTZ
at 1 gram tip tracklng
rmlser
force,
Channel Balance:
Channel Separation Optimum Load:
picofarads capacitance per
.
ohms with almost no audible changp ~n frequency response Total capaci­tance includes both the amplifiers, tone arms and cables meet this requirement
Inductance: DC Resistance:
Tracking Force:
Force Exerted by Dynamic Stabilizer: Output Terminals: Mounting:
Weight:
in
Net
Vl5
Type
VN45HE Hyperellipt~cal Nude Diamond Tip, Black Grip, Black Name­VN4G
VN478E
Within 2 dB
lmin~mum!
47,000 ohms reslstancr in parallel with 200 to 300
500 m~llihennes
1380 ohms
Minimum 0 75 grams 125 grams Maximum 1.25 grams 175 grams
4
terminals
12.7 mm istandard 1/2 in ! mounting centers
6.4 grams
IV
Styli Available:
plate Spherical Nude Diamond Tip, 15 micmns i 0006 1n.1 radius, Black Grip, Gray Nameplate Biradial iEUlptical1 Nude Diamond Tip. For monophonic 78
rpm records. Tip Tracking Force Range: 0.75 to
grams. 13 x 63 microns 1.0005 in x 0025 in I.
25
dB
at 1,000
Hz,
15 dB at 10,000
channel
Load
resistance can be up to 70,000
tone
ann
wiring and amplifier input circuit [Mast
Force at the Total tone arm setting with
stylus tip Dynamic Stabilizer "operating
10 gram 15 grams
0.5 grams
isupplied
!
In
V15 IV-G Cartridg~l.
Hz
1.25
15
Fun
One
Year
(-
Shure Brothers Incorporated i"Shure'i.221 Hartreyhenue Ebanaton, lllinols duct that it workman\hip and materials for a period of onc year fmm date of purchase You should retain proof af date of pur-
chase
r-=
!=,
this Shure pmduct has any defects carefully repack the unit and =turn it prepaid to:
p3
Ifpu dralcr
60204, warrants to the
will be
free,
Shure is not liable for any consequential damages
Shure Brothers Incorporated
Attrntion: SCMCB Department
1501 \Vest Shure Driw Arlington Heights. Illinols
are
not ~n th~ United Stat-, return the unit to your
or
AuthurBpd
Senice
Warranty
in normal use. of any defects ir.
as
60004
Center. for repair The unit \\ill
owner
of this pro
described above.
Quality
Shure
The V15 Shure Master Quality Control safeeuards and standards to assure you that your Vl5 operating condition.
Shure
If
qualitycontrol not only covers lncomingparts andthefinishedproducts, but intermediate tndge body and every stylus-magnet assembly is tested and microscopically examlned Each finished cartridge is indiidually sublected to exactinglisten­ing tests, and tested electrically and mechanically against close tolerance performance specifications seldom
r
SPECIAL "our The follu\>inl certifiratlon an the
I
is
precisionmanufactured
IbfITATIONS THEY
OF
UFACTURED BY SHURE BROTHERS INC
L
ON
Assurance Certificate
V15
Type
IV Stereo Dynetica Cartridge has been manufactured under the
NmE
cartridge, be certain that any replacement stylus you bu beam
YOUR
CARTRIDGE
THE STYLlJS GRIP
IV
Cartridges
Pmgrarn. This pmgram embraces stringent
subasjemblies as well. For example: every individual
achieved
To
maintain the original petiomance standards of
~ackag?:
by
&re ~Fothen Inc:
M'lLL
SERIOUSLY DEGMDL THE PERFORMANCE
ALL
GENUISE
''DWETIC"~'
'
'Wpe
N
is in perfect
.
.
in the High ndelity Industry.
'"This
Stereo Dweticiso/lus
AVOID
INFE~OR
STYLI
TUF
ARE
MAMF
SHT'RF
""Y
PC>"
car-
MAN-
PATENT NOTICE: Cartridge and stylus manufactured under one or moreof the follow~ng U.S. Patents 3,055,988, 3,077,521,3,077,522,
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3,463,889, and 4,194,744. Other patents pending.
Copyright 1980 222 Hartrey Avenue, Evanston, Illinois 60204 27A1303 (TI) Printed in U.S.A.
SHURE
BROTHERS INC.
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