Shure M912ED User Guide
222 HARTREY AVE.. EVANSTON. IL. 60204 U.S.A
TWX: 910.231.0048 |
TELEX: 72.4381 |
THE PREMIER FAMILY OF STEREO SOUND REPRODUCERS
STEREO DYNETIC@ M912ED PHONOGRAPH CARTRIDGE
CARTRIDGE AND STYLI SPECIFICATIONS
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8 |
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** |
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$9 |
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N9lED |
Yellow |
5.0 mV |
20 to |
within |
25 dB |
3/4 to |
400 Hz - 22 cm/sec |
5 X 181~ |
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20,000 |
2 dB |
at |
1 |
1,000Hz - 33 cm/sec |
(.OW2X |
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H z |
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1 kHz |
grams |
10,000Hz - 19 cm/sec |
.W07 in.) |
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at 1gram |
Biradial |
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(Elliptical) |
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- - |
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-- -- |
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N91-3f |
Dark |
6.2mV |
20 to |
1% |
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64 microns |
Green |
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20,000 |
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to 3 |
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(.0025in.) |
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H z |
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grams |
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Spher~cal
1.Optional 78 rpm Stylus: Set amplifier to "MONO" or "A + B."
'Output voltages given for stereo cut record. For MONO cut record, output voltage at both left channel and right channel cartridge terminals will be 71% of figures above.
"Tracking forces |
greater than maxlrnum indicated should not be used. |
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NET WEIGHT: 5 8 grams |
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INDUCTANCE: |
720 millihenries |
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DC RESISTANCE: |
630 ohms |
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OPTIMUM LOAD: |
47,000 ohms resistance |
in parallel with 400 to 500 pico- |
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farads total capacitance per channel. |
Load |
res~stancecan be |
up to |
70,000 |
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ohms |
w ~ t halmost |
no audible |
change |
in frequency response. |
Total |
capaci- |
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tance |
includes |
both the tone |
arm w i r ~ n gand amplif~erinput |
circuit. |
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FOUR-CHANNEL: This Stereo Dynetic@ cartridge is compatible with all four-channel matrlx systems.
MONOPHONIC OPERATION: Set function switch on amplifier to "MONO"
or " A I B . " l i |
amplifier is |
not equlpped wlth this sw~tch, connect left and |
right channels |
in parallel. |
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CONNECTIONS (see Figurs 1): |
Rlght "hot" lead (usually red) to "R," right |
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ground |
(usually green) to |
"RC |
" Left "hot" |
lead (usually white) to "L," |
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left ground |
(usually |
blue) |
ro "LC." |
~f metal |
head is causing ground loop |
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hum, remove the ground tab. The |
metallic cartridge shield is disconnected |
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from the right channel @round by the removal of the ground tab. |
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CAUTION: |
D o not |
make |
solder |
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connection |
to cartridge |
terminals. |
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STYLUS REPLACEMENT (see Fig- |
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ure 2): Grasp molded housing of |
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stylus |
and |
gently |
pull |
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iorward |
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our of |
cartridge. Insert |
replace- |
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ment stylus |
into socket |
and press |
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GROUNDED |
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until housing mates wlth cartridge |
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TO CASE |
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case. |
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FIGURE 1 |
MOUNTING r12.7 mm (112 in.) |
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mounting centers]: |
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Mounting screws are provided. |
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1. Remove stylus guard and stylus |
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(see |
Stylus Replacement). |
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2.Connect leads to cartridge (see Figure 1).
3. Lay cartridge In shell and align |
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mounting |
holes on side of car- |
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tridge with holes or threads in |
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shell. Follow |
turntable |
manu- |
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facturer's instructions to |
mounl |
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cartridge |
in tone arrn or plug-in |
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shell. |
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4. Reinsert |
slylus |
(see Stylus Re- |
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placement).
Copyright 1979, Shure Brothers Inc
27A1456 (SJ)
RECOMMENDED STYLUS CLEANING: Use a camel'shair brush (No. 2 size or smaller), trimmed to approximately 6 mm (1/4 in.), dipped in alcohol or an alcohol-d~st~lledwater solution Commercial cleaning solutions may cause ctylus damage or corrosion. Always brush stylus from back to front; never brush or wipe stylus from front to back or side to side.
TO PRESERVE STYLUS LIFE:
1. Follow turntable or tone arm instructions when adjusting antiskating
force. |
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2. D o not handle |
the tone arm w h ~ l eit is in operation since this may |
cause the arm |
to sweep across the record. |
3. If it is necessary to manually place the tone arm in the record groove
while |
turntable is rotating, release i t as soon as the stylus engages the |
record |
groove. |
4.Correct improper set-down adjustment or malfunction of the turntable rhanging mechan~smto prevent the stylus from striking the edge of the
turntable or record. D o not stack more records than turntable manufacturer recommends.
5Take care to properly insert the stylus into the cartridge assembly and the cartridge and shell assembly into the tone arm receptacle.
6. |
Use proper vertical tracking force |
setting for each cartridge. |
7. |
D o not use badly warped, cracked |
or imperfect records. |
8. When dusting the turntable protect the stylus with the stylus guard.
SPECIAL NOTE: To maintain the original performance standards of your cartridge, be certain that any replacement stylus you buy bears the followIng certif~cat~onon the package: "This Stereo Dynetic@ stylus is precision manufactured by Shure Brothers Inc." AVOID INFERIOR IMITATIONS. THEY WILL SERIOUSLY DEGRADE THE PERFORMANCE OF YOUR CARTRIDGE. ALL GENUINE "DYNETICO" STYLI ARE MANUFACTURED BY SHURE BROTHERS INC. LOOK FOR THE NAME SHURE ON THE STYLUS GRIP.
For more information on your Shure stylus, write for booklet: "A Visit to
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the Small World of a ~tylus . "
FULL ONE-YEAR WARRANTY: |
Shure |
Brothers lncorporated ("Shure"), |
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222 Hartrey |
Avenue, |
Evanston, |
Illinois 60204, warrants to the owner of this |
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product that |
it will |
be free, in normal |
use, of any defects In workmanship |
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and materials for a period of one year from date of purchase. You should retain proof of date of purchase. Shure is not liable for any consequential damages. If this Shure product has any defects as descr~bedabove, carefully repack the unit and return it prepaid to:
Shure Brothers lncorporated Attenl~on: Serv~ceDepartment 1501 West Shure Drive Arl~ngtonHeights, Illinois 60004
If you are not in the Un~tedStates, return the unit to your dealer or Authorized Service Center for repalr. The unit will be repaired or replaced and returned to you promptly, and if it cannot be repaired or replaced, you may elect to receive a refund. This warranty does not include stylus wear.
PATENT NOTICE: Cartridge and stylus manufactured under one or more of the following U.S. patents: 3,055,988, 3,077,521, 3,077,522, and 3,463,889.
Manufactured by Shure Brothers lncorporated
222 Hartrey Avenue, Evanston, I L 60204
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