Shure M92G User Guide
222
AREA
HARTREV
CODE
312/320-9000
AVE
tVAHSTON.
ILL.
(602041
CABLE
U
5
A.
SHUREMICRO
MODEL
~T.#BIcK
EASY-MOUNT
M92G
DATA
SHEET
STEREO DYNETIC@
PHONOGRAPH CARTRIDGE
SPECIFICATIONS
M91, M92 AND M93 CARTRIDGE SERIES
N91. N92, AND N93 STYLI SERIES
Output Voltage
Model
Number
M91E
--
M92G N92G Radius 6.2 millivolts Gray
*
The N75-3 stylus may be used to reproduce the standard 78
rpm records. In this case, the amplifler should be set to "Monaural" or
TRACKABILITY:
M91E at a stylus force of 1 gram
1,000
10.000
M93E at a stylus force of 2 grams
1,000 Hz. - 25 cm/sec.
10,000
Iiighcr stylus forces within specified range improve trackabiiity.
FREQUENCY RESPONSE:
CHANNEL SEPARATION:
RECOMMENDED LOAD IMPEDANCE:
INDUCTANCE:
D.C. RESISTANCE:
MOUNT1 NG:
WEIGHT:
TERMINALS:
GENEPAL:
Dynet~c phonograph eartrldgeq has been .developed for use wlth
all h~gh fldel~ty ampllflers havlng magnetlc and constant velocity
inputs.
MOUNTING:
Hardware
have British threads.)
1.
Remove stylus guard and stylus from cartridge. (See para-
graph on stylus replacement.)
2. Remove cartridge from "Easy-Mount" snap-in bracket. (See
(Figure
3. Start mounting screws into tone arm head or plug-in shell.
4. Slip "Easy-Mount" bracket under heads of mounting screws
and tighten screws securely.
5. Connect leads to
connection to terminal
dicated in tone-arm instruction manual.
6. Insert cartridge into
Figure 1)
Diamond Stylus
Replacement
N91E Elliptical Side
Contact Rad~us:
.0002" (.005 mm)
Frontal Radtus
.0002" (.005 mm)
Frontal Radius:
Contact Radius
.0004" (.010 mm)
Frontal Radius
.0007" (.018 mm)
I
.0006"(.015 mm)
IW5-3.* Radius:
.0025" (.064 mm)
"A+B."
400
Hz.
-
20 cm/sec.
Hz.
-
28 cm/sec. 1,000
Hz.
-
18 cm/sec.
400
Hz.
-
18 cm/sec.
Hz.
-
13 cm/sec.
720 nlillihcnrics
630 ohms.
Standard
"Easy-BXount" snap-in bracket.
6
grallls
The M91. M92, and M93 Series of High Trackabiljty
The cartridges have standard
18 provided for mountlng purposes.
1)
~~~~~R~~$~&~B~~~~E~~:F~~~~~~~OCXINB
X''
4
te'rnlinals
phono-cartfidge. Note color code for proper
SHIELD
OF
CARTRIDGE MUST
\
(1,000
5
cm/sec.)
5.0 millivolts
:
6.2 millivolts
6.2 millivolts
:
:
I
6.2 millivolts
M92E at a stylus force of 1 gram
10,000
M92G at a stylus force of 1 gram
10,000
From 20 to 20,000
Morc than 25 db at 1,000
(12.7 11nu) 111011nt1ng center using ncw
L,
"R," "LG" and "RG as in-
"Easy-Mount" snap-in bracket. (See
CAlTRlDCE BUMP IN
HOLE OF BRACKET.
I
Stylus
Hz.
Color
at
Grip
Yellow
I
Black
Light
Green
3/4
%
I
.P/1
Green
400
Hz.
-
18 cm/sec.
Hz.
-
26 cm/sec.
Hz.
-
15 cm/sec.
400 Hz. - 18 cm/sec.
1,000
Hz.
-
26 cm/sec.
Hz.
-
15 cm/sec.
Hz.
Hz.
47,000 ohms per cha~lncl
%"
mounting centers.
(The brass screws
BE
PLACED
7
Tracking
(Grams)
to 1%
to 1%
1% to 3
-
to 1%
1%
to
--
3
-
CARTRIDGE
FOR
AND
FIGURE
REMOVAL OF BRACKET.
BRACKET ASSEMBLY
I
7. The top of the "Easy-Mount" bracket should be flus!~
against the top of the tone arm head for proper playing position, unless other mounting instructions are supplied by the
changer/tone arm manufacturer.
record
8.
Reinsert stylus.
SHURE-SME MOUNTING INSTRUCTIONS:
tridge in the Shure-SME Precision Picku Arm,
3012, refer to the paragraphs on Cartridge
ing in the instruction Manual supplied with the pickup arms.
OPERATION:
are listed under "Specifications." Forces greater than the indi-
cated "maximum" should not be used.
Recommended needle forces for optimum results
To mount the car-
r)nstall?tion and Balanc-
Nodel 3009 and
CONNECTIONS
4-LEAD STEREO CONNECTION:
channel to terminal "R" and shield or ground lead of nght chan-
termlnal "RG." Connect "hot" lead of left channel to ter-
nel to
"L"
minal
To prevent " round loops" and hum, no common connection
should be
MONAURAL CONNECTION
Monaural or Stereo recordings, connect hot"
and
ground terminals marked
To clean the stylus, use a camel's-hair brush (No. 2 size or
smaller) dipped
sludge deposits which may have coated the stylus tip. The brush
bristles should be trimmed to a length no longer than
Always
(terminal end of the cartridge) to the front.
the stylus from tront to back or side to side.
CAUTION:
connections to cartridge terminals. Make all solder connections
to terminal jacks
slipping them over the terminals.
and shield or ground lead of left channel to
use2 at cartridge terminals.
"L"
terminals and connect ground or shleld lead to both
Suaaestions
- -
"RG
for
hghtly in alcohol. The alcohol will remove any
brush the stylus with a forward movement from the rear
Do not make solder
prov~ded before
Connect "hot" lead of right
"LG."
:
For single 'channel reproduction of
and
"LG."
Cleanina Your Stvlus
-
!ead to both "R"
?4
Never
brush or wipe
inch.
TERMINAL DIAGRAM STYLUS REPLACEMENT
FIGURE
2
FIGURE
3
EASY STYLUS REPLACEMENT
Grasp molded housing of
Gently withdraw stylus by
replacement stylus between thumb and forefinger and insert into
stylus socket. Press stylus into socket until the molded housing
of the stylus mates with the cartridge case. Care must be taken
not to allow the
stylus, resulting in damage to the stylus tip or shank.
SPECIAL NOTE:
tridges is the most critical component. To
performance standards of your cartridge, be certain that any replacement stylus you buy bears the following
package: "This Stereo
by Shure Brothers, Inc."
Avoid inferior imitations. They will seriously degrade the performance of your cartridge. All genuine "Dynetic" styli are
manufactured by Shure Brothers,
LABORATORY TEST FINDINGS:
-
--
test findings of the ~hure
scrutiny Shure pays to all
laboratory tests show that the Imitation stylus assemblies labeled
as revlacements for the Shure Model N3D Stylus Assembly
drastically in important performance charactefistics. For example,
111~
nnmnliance varied from a low of 0.9 to a hieh of 11.5. reauirins
.........--.
9.0 grams to track a record with a low comp?iance stylus,Aa~~d
grams with a high compliance stylus. The high compliance stylus
retracted at 4 grams needle force, allowing the cartridge case to
drag on the record surface thereby becoming inoperative.
snonse at hieh treauencv (rdlative to the lkc level) ranged from a
5:5db peak To a ddrop
(27db) to."poor" (16.5db). at 1 kc. These flgures reveal that there
very little
is
imitatfon Dynetic Styli.
In each of the categories shown above the results ranged from
good to poor. As a matter of fact,
Shure performance standards for the Shure N3D Stereo
Stylus. In addition to our test findings, our Service Department
records show that an increasing number of
tridges are being returned because of poor performance-and our
examination has disclosed that most of these returned cartridges
are using imitation
CONCLUSION:
we cannot guarantee that the performance of Shure
cartridges will meet the published Shure specifications. Accept no
substitute.
finger to slip off the molded housing of the
The Dynetic stylus assembly used in thesf: car-
~
--..
~ ~
consistency
Dynetic Styli.
Obviously, if
st
lus between thumb and forefinger.
pulying forward out of cartritrge. Grasp
maintaln the original
Dynetic stylus is precision manufactured
certiflcation on the
Inc.
N3D
lmltatlon Shure Dynetlc Styh.) Shure
6f
7.5db. Separation varied froin "good"
(Note: The followine stvlus
stylus are an example of the dose
in performance characteristics of the
only 10% of the samples met the
Dynetic
Dynetlc Phono Car-
any
imitation Dynetic Stylus is used,
Dynetic
\a1
Re-
Guarantee
The Stereo Dynetic Cartridges and Stereo Dynetic Styli are
guaranteed to be free from electrical and mechanical defects for
one
all instructions are complied with fully. The Guarantee does not
cover stylus wear, nor does it cover damage to the stylus
bly from abuse or mishandling.
PATENT NOTICE:
3,077,521, and 3,077,522. Other patents pending.
Copyright 1968.
27A637 (7-68)
from the date of shipment from the factory, provided
year
Manufactured under
Shu1.c Brothci.~, Inc.
U:
S. Patents 3,056,988,
P1,inted in
assem-
U.S.A.
y
2
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