Advertisement
7. The top of the "Easy-Mum*
'
br+ket should be .flush against
the top of the tone arm head tor proper playlng position.
unless other mounting instructions are supplied by the record
changer/tone arm manufacturer.
8. Reinsert stylus.
SHURE-SME MOUNTING INSTRUCTIONS:
To mount the car-
tridge in the Shure-SME Precision Pickup Arm, Model 3009 and
3012, refer to the paragraphs on Cartridge Installation and Balanc-
ing in the instruction Manual supplied with the pickup arms.
OPERATION:
Recommended needle forces for optimum resulta
are listed under
"S
eciflcations." Forces greater than the indi-
cated "maximum" siould not be used.
CONNECTIONS
4-LEAD STEREO CONNECTION:
Connect "hot" lead of right
channel to terminal " R and shield or ground lead of right chan-
nel to terminal "RG." Connect "hot" lead of left channel to ter-
minal
"L"
and shield or ground lead of left channel to
"LG."
To prevent "ground loops" and hum, no common connection should
be used a t cartridge terminals.
MONAURAL CONNECTION:
For single channel reproduction of
Monaural or Stereo recordings, connect "hot" lead to both
" R
and
" L
terminals and connect ground or shield lead to both
ground terminals marked " R G and
"LG."
Suggestions for Cleaning Your Stylus
To clean the stylus, use a camel's-hair brush (No.
2
size or
smaller) dipped lightly in alcohol. The alcohol will remove
an
slud e de
sits which may have coated the stylus tip. The brusE
brisfies s g u l d be trimmed to a length no longer than
inch.
Always
brush the stylus with a torward movement from the rear
(terminal end of the cartridge) tp the front.
Never
brush or wipe
the stylus from front to back or side to slde.
CAUTION:
Do not make solder
connectione to cartridge termi-
nals. Make all solder connections
to terminal jacka provided before
slipping them over the terminals.
TERMINAL DIAGRAM
STYLUS REPLACEMENT
FIGURE
2
FIGURE 3
EASY STYLUS REPLACEMENT
Grasp molded housing of stylus between thumb and foreflnger.
Gently withdraw stylus by pulling forward out of cartridge. Grasp
replacement s t lus between thumb and forefinger and insert into
stylus socket. s r e s s st lus into socket until the molded housing
of the
st
lus mates with tbe cartridge case. Care must be taken
not to a f o w t h e Anger to slip off the rpolded housing of the
stylus, resulting In damage to the stylus tip or shank.
SPECIAL NOTE:
The Dynetic stylus assembly used in these car-
tridges is the most critical component. To maintain the original
performance standards of your cartridge, be certain that any re-
placement
st
lus yoW buy bears the following certiflcatlon on the
package:
xis
Stereo Dynetic stylus is precision manufactured
by Shure Brothers, Inc.
Avoid inferior imitations. They will seriou??
degrade the per-
formance of your cartridge. All genuine
8ynetic" styli are
manufactured by Shure Brothers, Inc.
LABORATORY TEST FINDINGS:
(Note: The followin
st
lus
test flndin s of the Shure N3D stylus are a n example of t%e dose
scrutiny ~&;ure pays to all imitation Shure Dynetic Styli.) Shure
laboratory tests show that the imitation stylus assemblies labeled
as replacements for the Shure Model N3D Stylus Assembly vary
drastically in important perkormance characteristics. For example,
the compliance varied from a low of 0.9 to a high of 11.5, requirin
9.0 grams to t r f ~ c k a record with a low compliance stylus, and
5
grams with a high compliance stylus. The high compl.Iance stylus
retracted a t 4 grams needle force, allowing the cartridge case to
drag on the record surface, thereby becoming inoperative. Re-
sponse a t high fre uency (relative to the ! k c
level) ranged from a
.i.Fjdb peak to a 3rop of 7.5db. Separation varied from "good"
(27db) to
(16.5db), at
1
kc. These flgures reveal that there
is very liy8z'dnsistency in perforrnan?e characteristics of the
imitation Dynetic Styli.
I n each of the categories shown above the results ranged from
good to poor. As a matter of fact, only 10%
of
the samples met the
Shure performance standards for the Shure N3D Stereo Dynetic
Stylus. I n addition to our test findings, our Service Department
records show that an increasing number of Dynetic Phono Car-
tridges are being returned because of poor performance-and
our
examination has disclosed that most of these returned cartridges
are using imitation Dynetic Styll.
CONCLUSION:
Obviously, if
any
imitation Dynetic Stylus is used,
we cannot
uarantee that the performance of Shure Dynetic
cartridges w i 1 meet the published Shure spe~ciflcations. Accept no
substitute.
Guarantee
The Stereo Dynetic Cartridges and Stereo Dynetic Styli are
guaranteed to be free from electrical and mechanical defects for
one year from the date of shipment from the factory, provided
all instructions are corn lied with fully. The Guarantee does not
cover stylus wear, nor $oes it cover damage to the stylus assem-
bly from abuse or mishandling.
P A T E N T NOTICE:
Manufactured under .U. S. Patents 3,055,988,
3,077,521 and 3,077,522. Other patents pending.
Copyright 1969, Shure Brothers. Inc.
27A663 12-69)
Printed in
U.S.A.
Advertisement
