Shure M3D User Guide
222
HARTREY
AVE.. EVANSTON. IL. 60204 U.S.A
"A
AREA
CODE
3121866.2200 . CABLE:
TWX: 910-231-0048 TELEX: 72-4381
THE PREMIER FAMILY OF STEREO SOUND REPRODUCERS
SHUREMICRO
MODEL
M3D
STEREO
DYNETICO
PHONOGRAPH CARTRIDGE
GENERAL
The Model
iidelity
M3D
amplitiers having magnetic and constant velocity inputs.
Cartridge has been developed ior use with all high
SPECIFICATIONS
FREQUENCY RESPONSE: 20 to 15,000
OUTPUT
CHANNEL SEPARATION (minimum): 20 dB at 1,000
STYLUS: rModel
TRACKING FORCE:
ind~cated should not be used.)
OPTIMUM LOAD: 47,000 ohms
INDUCTANCE: 420 millihenries
DC RESISTANCE: 280 ohms
STATIC COMPLIANCE: VERTICAL
NET WEIGHT:
MONOPHONIC OPERATION: Set function switch on amplifier to
or "A+B." If amplifier
right channels in parallel.
CONNECTIONS (see Figure
right ground (usually green)
white) to
CAUTION:
at
5
(1,000 Hz
"L,"
Do not make solder
cm/sec peak recorded velocity):
N3D,
Spherical, Radius 18 n~icrons LO007 in.)
3
to 6 grams (Tracking forces greater than maximum
9.2
grains
IS
not equipped wtth this switch, connect lei[ and
1):
leit ground (usually blue) to
LEFT
CHANNEL
TERMINAL
to
Hz
7.5
rnV per channel
Hz
{
4xlO-" cm per dyne
Rlght "hot" lead (usually red) to "R,"
"G"
below "R." Left "hot" lead (usually
"C"
below "L."
connections
to cartridge terminals.
RIGHT
CHANNEL
TERMINAL
"MONO"
.
---
TERMINAL DIAGRAM
FIGURE
1
STYLUS REPLACEMENT (see Figure
The stylus
to
bending or
Stylus replacement is simple and fast. (See Figure
-
tront
(portion holding stylus tip) or spring wire in the stylus assembly. (Step
-
out
and foreiinger and Insert Into stylus socket of cartridge. (Step 4) - Press
stylus
tlon oi the ~pade. Care must be taken not to allow the flnger to
of the iront of the stylus spade resulting in damage to the stylus t~p.
Copyright 1979, Shure Brothers Inc
27A1248
assembly,
damage during normal
distorting
lnieri fingernail file (or similarly pointed tool) beh~nd the lip at the
of [he stylus spade. Care must be taken not to deform stylus shank
Wlthdraw stylus by pull~ng iorward out of cartridge - lift completely
vilth thumb and foreiinger. (Step
Into socket unlil it is ilrmly seated. Apply pressure at the iront por-
(SG)
when installed in the cartridge is practically immune
usage. However, care should be taken to
the stylus assembly when it is installed or removed.
2):
3)
-grasp new stylus between thumb
(OVER)
RIGHT
WANNEL
GRWND
TERMINAL
2).
To replace (Step
Prlnted ~n U.S.A.
avold
slip
1)
2)
oli
STYLUS REPLACEMENT
2
FIGURE
MOUNTING
provided.
1. Remove Stylus guard and stylus (see Stylus Replacement).
2.
Connect leads to cartridge (see Flgure
3. Lay
with holes or threads in shell. Follow turntable manufacturer's instrucÂtions to mount cartridge in tone arm or plug-in shell.
4.
Reinsert stylus (see Stylus Replacement).
RECOMMENDED STYLUS CLEANING: Use a camel's hair brush (No.
or smaller), tr~mmed to approximately 6 rnm (1/4 in.), dipped In alcohol or
an alcohol-distilled water solution. Commercial cleaning solutions may cause
stylus damage or corrosion Always brush stylus from back to front; never
brush or
TO PRESERVE STYLUS LIFE:
1. Follow turntable or tone arm instructions when adjusting antiskating
force.
2. Do not handle the tone arm while it is in operation since this may
cause the arm to sweep across the record.
3,
li it is necessary to manually place thr tone arm in the record groove
while turntable is rotating, release it as
record groove.
4. Correct Improper set-down adjuslment or inalfunction of the turntable
changlng mechanism to prevent thc stylus from striking the edge of the
turntable or record. Do not
turer recommends.
5.
Take care to properly
the cartridge and shell assembly into the tone arm receptacle.
6. Use proper vertical tracking force
7. Do not use badly warped, cracked or imperfect records.
8.
When dust~ng the turntable protect the stylus with the stylus guard.
SPECIAL NOTE: To
cartridge, be certain that any replacement stylus you buy bears the folÂlowing
manuiactured by Shure Brothers
WILL SERIOUSLY DEGRADE THE PERFORMANCE OF YOUR CARTRIDGE.
ALL GENUINE "DYNETICO" STYLI ARE MANUFACTURED BY SHURE
BROTHERS INC. For more information on your Shure stylus, write for
booklet:
FULL
222 Hartrey Avenue, Evanston,
product that it will bc free, In normal use, of any defects in workmanshlp
and
retaln proof
damages.
fully repack the unit and return it prepaid to:
If you are not in the United States, return the unit to your dealer or
Authorized Service Center
and returned to you promptly, and
you may elect to receive a refund. This warranty does not include stylus wear.
PATENT NOTICE:
of the following U.S. patents: 3,055,988, 3,077,521, 3,077,522, and 3,463,881.
[12.7
mm
(112
in.) mounting centers]: Mounting screws are
1).
cartridge
certification
ONE-YEAR WARRANTY: Shure Brothers lncorporated ("Shure"),
materials
in shell and align mounting holes on side of cartridge
wlpe stylus irom front to back or side to side.
roon as the stylus engages the
stack more records than turntable manuiac-
insert the stylus into the cartridge assembly and
ietting for each cartridge.
malntain the origlnal performance standards of your
on the package: "This Dynetlcm stylus is precision
"A
Visit to the Small World of a Stylus."
for a period
oi
dale of purchase. Shure is not liable for any consequential
If ih~s Shure
Shure Brothers lncorporated
Attent~on: Service Department
1501 West Shure Drive
Arlington
Cartridge
Inc." AVOID INFERIOR IMITATIONS. THEY
llllnois 60204, warrants lo the owner of th~s
of
one year from date of purchase. You should
product has any defects as described above, care-
Heights, Illinois 60004
for repair. lhe unit
~t it cannot be repalred or replaced,
and rlylus maniifactured under one or more
will
be repalred or replaced
2
slze
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