Yamaha YP-D6 User manual

OWNER’S
GUIDE
direct drive
turntable

Direct Drive 12-Pole 24-slot DC Servomotor
Low Wow and Flutter (0.035% wrms)
Auto Return and Auto Cut Features Designed for
Optimum Operating Convenience
Sensitive S-Type Static Balance Tonearm
Cueing Lever and Anti-Skating Inside Force Canceler
Stroboscopic Speed Indication
Separate ±3% Speed Adjustments for 33/45 rpm
Gold-Plated Headshell Contacts
Free-Setting Detachable Dust Cover
Large Acoustic Insulator Feet
The Names and Functions of the Parts ........................................... 4
Cautions - Read This Before Operating Your YP-D6 .......................... 5
Assembly and Adjustments ............................................................ 6
Connections to Your Amplifier or Receiver ..................................... 10
How To Play Records .................................................................... 10
Changing Cartridge Stylus ............................................................ 11
Specifications .............................................................................. 12
Trouble Shooting .......................................................................... 13
CONTENTSFEATURES
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Rubber Mat
Specially designed to give the ideal support for records,
damping their resonance and so improving overall bass
response.
Turntable Platter
Die-cast aluminum, this has been specially dynam-
ically balanced for optimum flywheel smoothing
effect, giving steady, even rotation.
Detachable Dust Cover
The beautiful transparent acrylic dust cover is
fully detachable by free-setting hinges for maxi-
mum accessibility.
Counterweight Assembly
The whole counterweight assembly rotates to give
easy selection and clear indication of accurate
stylus tracking force settings. The assembly con-
sists of long weight with indicating dial and ring
weight.
Anti-Skating Inside
Force Canceler
This simple dial-setting anti-skating device ensures
middle-of-the-groove tracking.
Arm Rest
This provides a positive rest for the tonearm after auto-
return at the end of a record, and between records.
Cueing Lever (Arm Lifter)
With this lever you can gently lift the cartridge from the
record - and lower it back just as gently - without fear of
jarring the delicate stylus or damaging precious records.
Tonearm
The advanced S-type static balance arm used in the
YP-D6 features special bearings and unusually high
sensitivity in both horizontal and vertical directions,
for top performance with all types of cartridges.
Fine Speed Adjustment Control
(45 rpm)
This gives approximately ±3% adjustment in the speed of
turntable rotation at 45 rpm. It does not affect the setting
at 33-1/3 rpm.
Fine Speed Adjustment Control
(33-1/3 rpm)
This is the corresponding control for 33-1/3
rpm speed, and is also quite independent.
Speed Selector Push-Buttons
Just press the appropriate button for immediate selection
of the desited speed.
PLAY/CUT Push-Button
With the cartridge poised above the lead-in groove, a
touch to this button will start record audition. Another
touch at any point during the playing a record, and
NAMES AND FUNCTIONS OF THE PARTS
audition will be automatically terminated, returning the
tonearm to its original position.
Headshell
With gold-plated contacts for ultra-low contact resis-
tance (enemy of top quality phone reproduction), this
superior headshell accepts virtually all cartridge types.
Center Shaft (and Motor)
In the YP-D6 the central shaft is integral with the motor,
which rotates at the actual speed of the the turntable
platter, reducing vibration and eliminating the need for
intermediate mechanisms.
Auto Return Mechanism
Simple and reliable, this mechanism safely and gently
returns the tonearm to its rest at the end of the record,or
when the record is rejected.
Stroboscopic Speed Indicator
Housing
The YP-D6 features accurate indication of the turntable
speed by stroboscopic illumination of the engraved skirt
of the turntable platter.
Acoustic Damper Feet
These large feet insulate the YP-D6 from vibrations, and
help to eliminate “howling” (acoustic feedback from
speakers).
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If there is a voltage selector switch on the
rear of the YP-D6, it must be set for your local
mains voltage BEFORE plugging in the AC
main supply. Voltages are 110-130/22-240 V
AC, 50/60 Hz. To change the voltage, unscrew
the metal switch-guard plate, change over the
switch, and screw the plate back in the reverse
position. This switch is not available in Canada
and The U.S.
CAUTIONS - READ THIS BEFORE OPERATING YOUR YP-D6
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1
The YP-D6 is a sensitive piece of precision audio
equipment. This manual is required reading if you
are to get the best from it.
2
Be very careful not to drop or jar the YP-D6,
particularly after it has been fully assembled and
all adjustments are made. If it is accidentally
bumped, check carefully that nothing has gone
out of adjustment, or readjust accordingly.
3
Locate the YP-D6 in a flat and level place, out
of the direct rays of the sun, avoiding locations
subject to vibration and excessive dust, heat,
cold or moisture. Also avoid plaing it directly
in front of – or too close to – your speakers.
4
If the YP-D6 ever has to be relocated, carry it
with extreme care. Better still, retain the ori-
ginal packing, and carefully re-pack it for transit.
5
Do not attempt to clean any accumulations of
dirt with chemical solvents (such as alcohol or
benzene). Wipe only with a clean, completely
dry cloth.
6
Do not assume that your YP-D6 is faulty be-
fore reading the section on ‘Trouble Shooting’,
which details common operating errors.
7
Keep this manual in a safe place for future ref-
erence, and refer to it frequently until you are
fully familiar with your YP-D6.
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Whichever high performance cartridge you buy
for use with the YP-D6, be sure to keep the
stylus tip free from accumulated dirt: this is
the major single source of poor sound quality
from records.

2. Further rotation in the clockwise direc-
tion will draw it forward smppthly, coun-
ter-clockwise rotation draws it backwards.
3. Push the ring counterweight onto the long coun-
terweight and secure it with the hexagonal key half-
way along the long counterweight.
Fitting the Headshell and Cartridge
1. Read the cartridge maker’s instructions carefully.
If a stylus guard is fitted, do not remove it at this stage.
Cartridges weighing 4 to 15 grams may be used.
2. Two lengths of screw are provided; secure the
cartridge with the better length as shown. Only
tighten the nuts just enough to prevent movement.
3. Note the coding of the colored headshell leads:
one stereo pair is Red/Green and the other is White/
Blue. A small pair of tweezers will be invaluable
in attaching the metal sleeves to the
cartridge connectors.
4. Push the headshell assembly into the tone-
arm socket, and gently turn the locking
“sleeve” until it grips the headshell in position.
5. Slightly slacken the screws retaining the
cartridge and slide it backward or forwards until
the stylus tip is exactly in line with the overhang
setting mark as shown. This is an extremely
important adjustment. Finally, tighten the
screws sufficiently to prevent movement, taking
care to keep the cartridge parallel with the
headshell. Do NOT use excessive force.
6. The stylus guard may be removed at this point.
6

The completely detachable acrylic dust cover is
wrapped separately in the original packing from
the Yamaha factory, and should be attached as
shown in the diagram. Align the studs on both
hinges with the grooves, and slip them first (1)
and then along (2). Simply reverse this when you
wish to detach the dust cover. Springs in the
hinges will enable you to set it at intermediate
angles.
Before placing the turntable itself on its central
shaft, turn the auto-return mechanism so that the
arrow mark is in the position shown in the diagram,
on the opposite side of the gear wheel from the
central shaft. Then grasp the turntable platter
carefully by inserting finger and thumb through
two of the holes provided, and place it gently on
the center shaft. After this, put the rubber platter
mat on the turntable.
Fitting the Balance Counterweight Assembly
1. Push the separately wrapped long counter-
weight onto the rear shaft of the tonearm,
rotating it as shown.
ASSEMBLY AND ADJUSTMENTS
ATTACHING AND DETACHING
THE ACRYLIC DUST COVER
MOUNTING THE TURNTABLE
ASSEMBLING THE TONEARM
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Some cartridges have detachable stylus guards,
and others have hinged protection. The cartridge
shoud be in the same state it would be for actu-
al record audition, with the stylus fully exposed.
Take care not to “snag” the stylus while it is un-
protected.
1. Set the inside-force canceler dial to zero (‘0’).
2. Lift the tonearm fro the arm rest, and move
to a point on the right of the arm rest (i.e.
outside it) as shown.
3. Turn down the cueing lever (arm lifter) as
shown, and allow the arm to find its own posi-
tion. If necessary, support the headshell with
the finger grip to prevent the stylus from cont-
acting the motor board.
4. Slowly rotate the balacne counterweight as-
sembly in the direction indicated until the tone-
arm is perfectly balanced, parallel with the
motor board. A very small rotation only
should be made at a time, unitl the headshell
floats freely, no longer needing to be supported.
5. Return the tonearm to the arm rest once per-
fect balance has been achieved.
ADJUSTING THE STYLUS TRACKING FORCE
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6. Hold the balance weight so that it does not
rotate away from the position at balance, and
rotate only the indicator dial until the zero on
it comes to top dead center as shown.
7. Now grip the rear of the counterweight as-
sembly and rotate it slowly and carefully clock-
wise: the number showing opposite the top
center line is the tracking force in grams. One
complete rotation (bringing the dial back to
zero) actually corresponds to 3.0 grams. Set
the manaufacturer’s recommended tracking
force.
8. To accomodate particularly light (or heavy)
cartridges, the ring counterweight can be un-
locked and re-positioned on the long counter-
weight.
This adjustment is very simple in the YP-D6:
note the maker’s recommended stylus tracking
force, which should agree with the reading on the
counterweight dial, and set the same number on
the dial of the inside-force canceler at the side of
the tonearm bearing assembly. This adjustment
balances the force which the record groove wall
exerts on the stylus tip, giving middle-of-the-
groove tracking and the best possible stereo re-
production, with longer life for stylus and records
alike.
ADJUSTING THE INSIDE-FORCE CANCELER
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1.Plug the right- and left-hand channel leads from
the back of the YP-D6, clearly identified by
both letters and colors, L (white, left) and R
(red, right), into the left- and right-hand
PHONO input sockets of your amplifier or
receiver, etc.
2.The third, black, lead is the GROUND lead, and
hum will usually be reduced if this is attached
to the GND terminal of the amplifier (receiver).
3.Plug the turntable main plug into your AC
main supply socket or a spare AC outlet on
the rear panel of the amp., if one is provided.
The diagram shows the points at which height
adjustments may become necessary. If the tone-
arm does not descend far enough for the stylus
tip to come into contact with the record sur-
face, use the hexagonal wrench to slacken the
hexagonal grub-screw retaining the cueing guide
(1) and lower it just sufficiently for free contact
to be made. Similarly slacken the retaining screw
(2) for the arm rest if its height needs to ad-
justed, and re-tighten after adjustment.
1. Set the input selector of your receiver or ampli-
fier to PHONO.
2. Put the record of your choice on the turntable.
If you have chosen an extended-play record
with the larger center hole, use the EP adaptor.
3. Set the cueing lever in the ‘DOWN’ position.
4. Bring the tonearm off the arm rest and place
the stylus over the lead-in groove.
5. Push the button for the appropriate speed. If
the pattern on the skirt of the turntable does
not appear to be stationary by the light of
the stoboscope, alter the fine speed control
knob for that speed until the pattern becomes
stationary.
6. The fine speed controls can also be used to
bring the recorded sound perfectly in tune
with a musical instrument of your own.
7. Depress the PLAY/CUT push-button. The
record will start to rotate, the tonearm
will slowly descend, and the record audition
will commence.
8. At the end of the record, the arm will auto-
matically lift and return to its rest, switching
the motor off.
9. If you wish to stop playing the record before
the end, press the PLAY/CUT button at any
time, and the arm will lift, return to its rest,
and the motor will turn off.
CONNECTIONS TO YOUR AMPLIFIER OR RECEIVER
AND HOW TO PLAY RECORDS
CONNECTIONS TO YOUR AMPLIFIER
OR RECEIVER
HEIGHT ADJUSTMENTS HOW TO PLAY RECORDS
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This lever, located immediately above the 33
SPEED CONTROL knob, is convenient when rais-
ing and lowering the tonearm and cartridges for
brief interuptions to record audition.
1. If the cueing lever is turned to the UP pos-
ition during record audition, the turntable will
continue to turn, but the tonearm will be lifted
off the record, and audition will be interupted.
2. If you later wish to continue with audition,
return the cueing lever to the DOWN posi-
tion, and audition will re-commence. This lever
should be operated gently, so that the stylus is
not abrupted dropped onto the record. Do not
leave it at intermediate positions.
3. If you later decide that you no longer wish to
listen to the record you have interupted, press
the PLAY/CUT push-button. The tonearm will
return to its rest and the motor will be switched
off. You must remember, however, to re-set the
cueing lever to the DOWN position, ready for
the next record audition.
A worn stylus can cause permanent damage to
precious records long before the sound quality
has seriously deteriorated. The only safe rule is
to change your stylus in good time. Follow the
maker’s recommendations carefully. As a general
guide, even a diamond stylus will only give sat-
isfactory service for some 200 to 300 hours. It
is wise to check the tonearm balance, the track-
ing force, and the inside canceler settings, if the
stylus is replaced.
Changing cartridges can be a fascinating way of
increasing your enjoyment of records. Many fans
own several, for various types of music and/or
mood.
Changing cartridges is considerably simplified
if you fit the cartridges to spare headshells. You
must ensure that the overhang distance is cor-
rectly adjusted. If you also make the weights of
your two (or more) cartridge/headshell assem-
blies the same, by adding the small lead weights
sold by some makers fot this purpose, you may be
able to avoid the repeated readjustment of tone-
arm balance.
USE OF THE CUEING LEVER CARTRIDGE STYLUS REPLACEMENT
CHANGING CARTRIDGES
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SPECIFICATIONS
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TROUBLE SHOOTING
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