Shure RM910E User Manual

DATA SHEET

CUSTOM

MODEL

RM91OE

HIGH TRACKABILITY

STEREO DYNETICB

PHONOGRAPH CARTRIDGE

BY

222

HARIREY

AYE

EVANSTON

lL

60204

RM91OE CARTRIDGE AND STYLUS SPECIFICATIONS

US A

FREQUENCY RESPONSE: 20 to 20,000
OUTPUT VOLTAGE (at 1,000 Hz, 5 cm/sec peak recorded velocity):

5.6

mV

Hz

CHANNEL BALANCE: With~n 2 dB
CHANNEL SEPARATION (minimum):
TRACKING FORCE:

TRACKABILITY:

1-1/2 to

mum Indicated should not be used.

400

1,000

10,000

20 dB at 1,000

3

grams. Tracking forces greater than maxi-

Hz - 18 cmlsec

Hz

-

25 cmlsec

Hz - 13 cmlsec

at 2 grams

(Higher stylus forces within specified range improve

"

-0

Y

30

"

20

t

,,

:

80

'I

2

6

:

4

,

s

4'

'RtPW*C.

I

..a10

K*,

Hz

Trackability.)

ma

TRACKABILITY CHART

1

FIGURE

REPLACEMENT STYLUS: Model

N75EJ

Side Contact Radius: 10 microns
Frontal Radius: 18 microns
Grip Color: Light

Type 2 Birad~al (Elliptical)

Green

LO007 in.)

(.0004 in.)

NET WEIGHT: 5 grams
INDUCTANCE: 720 millihenries
DC RESISTANCE: 630 ohms
OPTIMUM LOAD: 47,000 ohms resistance in parallel with 400 to

farads total capacitance per channel. Load resistance can be up to 70,000

w~th almost

ohms

tance includes the tone arm wiring and amplifier input circuit.

FOUR-CHANNEL:
four-channel matrix systems.

MONOPHONIC OPERATION: Set function switch on amplifier to "MONO"

"AtB." If amplifier is not equipped with this switch, connect left and

or

right channels in parallel.
CONNECTIONS (see Figure

Right "hot" lead (usually red) to
"R," right ground (usually green)
to "RG." Left "hot" lead (usually

white) to

ually blue) to
is causing ground loop hum, re­move the ground tab. The metal­lic cartridge shield is disconnect­ed from the right channel ground

bv the removal of the around tab.
CAUTION: Do not make solder

connections to cartridge terminals.

no

audible change in frequency response. Total capaci-

Th~s Stereo Dynetic@ cartridge is compatible with all

2):

"L,"

left ground (us-

"LC." If metal head

FIGURE

500

pico-

2

Copyright 1975, Shure Brothers Inc

27A831 (OK)

Printed in U.S.A.

STYLUS REPLACEMENT (see Fig­ure

3):

Grasp molded housing at
stylus and gently pull forward out
of cartridge. Insert replacement
stylus into socket and press until
housing mates with cartridge case.

"EASY-MOUNT" MOUNTING
mm

(1/2

in.) mounting centers]:

r12.7

Mounting screws are provided.

1. Remove stylus guard and stylus

(see Stylus Replacement).

2. Remove cartridge from snap-in

bracket (see Figure 4).

3. Attach bracket to tone arm

head or plug-in shell in ac­cordance with turntable manu­facturer's instructions. General­ly, the top of the bracket
should be flat against the top
of the head or shell.

4. Connect leads to cartridge (see

Figure 2).

5.

insert cartridge into snap-~n
bracket (see Figure 4).

6. Reinsert stylus (see Stylus Re­placement).

RECOMMENDED STYLUS CLEANING: Use a camel's hair brush (No. 2 size
or smaller),

alcohol-d~st~lled water solution. Commercial cleaning solut~ons may cause

an
stylus damage or corrosion. Always brush stylus from back to front; never
brush or wipe stylus from front to back or side to side.

tr~mmed to approximately 6 mm (1/4 in.), dipped in alcohol or

SHILLD

~:i$n,",:X,",:",~~~EdFB~[p;;E+OCCCNB

OF

CARTRIOCIL

FIGURE

MUST

BL

LLFT

HERE

OF

CARTRIDGE

FIGURE

3

PLACED

wiw

THuwNaL

FROM

4

BRACKET

roR

emovaL

TO PRESERVE STYLUS LIFE:

1.

Follow turntable or tone arm instructions when adjusting antiskating
force.

2.

Do not handle the tone arm wh~le it is in operation since this may cause
the arm to sweep across the record.

If it is necessary to manually place the tone arm in the record groove

3.
while turntable
record groove.

4. Correct improper set-down adjustment or malfunction of the turntable
changing mechanism to prevent the stylus from
turntable or record. Do not stack more records than turntable manufac­turer recommends.

5.

Take care to properly insert the stylus into the cartridge assembly and the
cartridge and shell assembly into the tone arm receptacle.

is rotating, release it as soon as the stylus engages the

str~king the edge of the

6. Use proper vertical tracking force setting for each cartridge.

7.

Do 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 certiiication on the package: "This Stereo
manufactured by Shure Brothers Inc." AVOID INFERIOR IMITATIONS. THEY
WILL SERIOUSLY DEGRADE THE PERFORMANCE OF YOUR CARTRIDGE.
ALL GENUINE
BROTHERS INC. LOOK FOR THE NAME SHURE ON THE STYLUS GRIP.
For more information on your Shure stylus, write for booklet:
the Small World of a

FULL ONE YEAR WARRANTY: Shure Brothers, lncorporated ("Shure"),
222 Hartrey Avenue, Evanston, Illinois 60204, warrants to the owner of this
product that
and materials for a

retain proof of date of purchase. Shure is not liable for any consequential
damages.
fully repack the unit and return it prepaid to the above address.
are not in the United States, return the unit to your dealer or authorized
Service Center for repair. The unit will be repaired or replaced and re­turned to you promptly, and ii 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.

"DYNETIC@" STYLI ARE MANUFACTURED BY SHURE

~tylus."

~t will be free, In normal use, of any defects in workmanship

per~od of one year from date of purchase. You should

If this Shure product has any defects as described above, care-

Available exclusively

ROYAL

Manufactured

222

Hartrey Avenue, Evanston, IL

ELECTRONIC

by

Shure Brothers lncorporated

DyneticB stylus is precision

"A

Visit to

If you

through

DIST.

60204