VPI JMW 12.7 User Manual

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THE JMW-12.7 TONEARM

SETUP AND INSTRUCTION

MANUAL

VPI INDUSTRIES INC., 77 CLIFFWOOD AVE #3B, CLIFFWOOD N.J. 07721

PHONE: [phone], FAX: [phone]

www.vpiindustries.com

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SETTING YOUR JMW 12.7 MEMORIAL TONE ARM

• You will see a number of th ings in pl astic ba gs:

• Allen wrenches

• Hex nuts, and washers (for cartridge mounting)

• Ar m mounting and alignment tool

• Shure stylus gauge

• Take all these items out and set them aside

A. CARTRIDGE MOUNTING:

• Remove the arm tube from the box (taking special care not to strain or damage, the delicate 4-

color wire and Lemo connector) and place it right side up o n t he foam pad.

FOR CARTRIDGES WITH THREADED MOUNTING HOLES:

• Use the screws supplied by the cartridge manufacturer to mount the cartridge. Any other

screws may not fit the thread pr operly and may even damage the threads and cart ridge. USE
ONE OF THE SUPPLIED WASHERS UNDER THE S CREW HEAD.

• For all cartridges with pass t hrough mounting holes use the hardware supplied with the arm.

Remember t o use the washers under the screw heads to pr event damage to the finish on the
JMW arm.

• In this step, the connecto r s will be att ached to the cartridge's terminals. Disregard the color of

the insulato r s on the cartridge clips.

THE COLOR COD E OF TH E WIRES IS AS FOLLOWS:

WHITE = left hot
RED = right hot
GREEN = right ground
BLUE = left ground

IF YOUR PHONO SECTION INVERTS P HASE, THE HOT BECOMES

THE GROUND COLOR

• The arm tube should be on its s ide on the foam pad when doing t his.

• Using tweezers or fine tipped pliers, grip the center of the red wire's connector (do not grip

the wire) and push it o nto the cartridge's right hot terminal pin. In the same way, connect
each of the remaining connectors to its respective cartridge terminal. Do not push the
connectors all the way on, as this could damage the cartr idge. Always back up the cart ridge
with yo ur finger when pushing on the c lips.

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• At the rear o f the arm base assembly is the connector block. Plug the Lemo connecto r into its

receptacle on top of the block. N otice that the connector can plug in only one way. Align the
red dot s on the arms plug with the red dot on the receptacle. Push gently do not force the
plug.

B. THE COUNTERWEIGHT:

• The JMW 12.7 tone arm comes with one large co unter weight installed on the rear shaft of the

tonearm. For most cart ridges you will only need this large weight. The counter weight is held
in position by a setscrew.

• The counterweight is used for setting the azimuth (lateral balance) of the cartridge and the

vertical tracking force.

• For now, po sition t he large count erweight t o give a minimum of tracking force, just enough

force to keep the cartridge on the alignment jig.

• In some rare cases it may be necessary to use two counterweights together. Contact your

dealer if a second counter weight is needed.

C. OVERHANG ADJUSTMENT & ALIGNMENT

• Th is adj ustme nt w ill yie ld t h e low e s t over a ll di s tor tion whe n pl a yin g a typi c a l 12" r e co rd. Do

not go crazy over this adjustment. You do not know if the stylus is aligned properly on the
cantilever. Yo u are also facing a constantly moving tar get when playing a record. The arm is
moving in 3-dimensions and will only approximate the accuracy you have built into your
alignment.

• Wit h t he a rm wa nd r emo ve d pla ce the Align ment Jig into po sit io n by slidi ng t he “V” cut o ut

against the male bearing and the hole over the spindle. If loose, adjust using the two scr ews.