JVC QL-F6 User manual

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I NTRODUCTI ON
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Thank you for purchasing JVC's QL-F6 Quartz Fully Auto-
matic turntable. Many advanced features of this turntable can
be correctly and efficiently utilized only when you have read
this instruction book, and understood it for operating the
turntable correctly. Wishing you successful and enjoyable
listeninc.
IMPORTANT (In the United Kingdom)
Mains Supply (AC 240 V'V, 50 Hz only)
I IMPORTANT I
Do not make any connection to the Larger Terminal coded E
or Green. The wires in th~ mains lead are coloured in
accordance with following code:
Blue to N (Neutral) or Black
Brown to l ( live} or Red CONTENTS
1
2
3
5
7
8
9
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IntroductionPrecautions.PreparationsNames of parts and their functions.Necessary procedures prior to record playing
Stylus replacementCartridge replacement.AdjustmentTroubleshootingSpecifications
If these colours do not correspond with the terminal identifi-
cations of your plug, connect as follows:
Blue wire to terminal coded N (Neutral) or coloured Black.
Brown wire to terminal coded L (Live) or coloured Red.
If in doubt -consult a competen t electrician.
Note
We recommend that you should diStonnect the AC cord from
the outlet.
WARNING
Dangerous voltage inside
PRECAUTIONS
CAUTION
T o prevent electric shock, do not remove screws, covers or
cabinet.
No user-serviceable- parts inside. Refer servicing to qualified
service personnel.
Installation
.Select place which is level, dry and neither too hot nor
too cold (between -5°C and 40°C123°F and 104°F).
.Keep the turntable from direct sunlight.
.Do not put it too close to a heater.
.To decrease noise
.Keep it as far from your TV as possible.
.Do not place it where it is dusty.
.Do not place the turntable just on top of an amplifier as
hum noises may be induced from the power transformer.
.To prevent stylus tripping
.Do not place it in a place subject to vibrations.
.Place the turntable as far away from speakers to prevent
howling as possible.
Power
.Do not handle the power cord with wet hands!
.Do not bend the power cord sharply.
.When unplugging from the wall outlet, always pull the
plug, not the power cord.
Malfunctions, etc.
.There are no user-serviceable parts inside. If anything goes
wrong, unplug the power cord and consult your dealer.
.Do not insert any metallic object inside the turntable.
.Do not allow water to get inside the turntable.
.Tracking force will affect the reproduced sound quality.
It should be properly adjusted.
Refer to the "Tracking force adjustment".

PREPARATIONS
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Note:
Do not connect the power cord to the outlet until all prepa
rations have been properly completed.
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.Unpacking and setting up
1. Remove the protective corners for shipping (1) .(See Fig. 1)
2. Remove the 2 shipping screws (2) (red~ur~g the trans-
former. (See Fig: 1) ~
3. Remove the shipping screw (red) (4) securing the counter-
weiQht(3).
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"A"r
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,4. Mount the counterweight onto the weight shaft while
turning in the direction A and slide it as close to the
tonearm base as possible. (See Fig. 2)
5. Gently position the platter onto the motor shaft, exercising
care not to damage the motor shaft. Then, position the
platter mat.
Caution:
An EP adaptor and sub-counterweight are provided as ac-
cessories in the polyetRylene bag. Be careful not to loose
them. Usage of the sub-counterweight is described in the
section "Tracking force adjustment" on page 5.
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Necessary procedures prior to record playing
1. Tracking force adjustment
2. Anti-skating adjustment
3. Oil-damped tonearm adjustment
4. Connection to a stereo amplifier (See Fig. 3)
Firmly connect the white plug of the OL-F6 output cord
to the PHO NO L ( left) terminal of the stereo amplifier and
the red plug to the R ( right) terminal.
Connect the grounding cord from the OL-F6 to the ground-
ing terminal of the amplifier.
5. Connect the power cord to the outlet.
Note:
The tonearm may be automatically activated when the
power cord is connected to the outlet. In such a case,
depress the REJECT button once and the tonearm will
return to the rest allowing the REPEAT knob indication to
be set from O to 1. This does not mean a malfunction exists
with the unit.
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Fig.3
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Counterweight
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NAMES OF PARTS AND THEIR FUNCTIONS
Fig.4
The Oil DAMPED TONEARM is designed to suppress
the range of resonance by maintaining a low resonant
point of the tonearm to prevent howl ing. With this O I l
DAMPED TONEARM, accurate tracking of the record
groove as well as a good resistant characteristic to howling
is possible, thus resulting in an improved SIN ratio. In
order to improve the sound quality, the Oil DAMPED
TONEARM plays an important role.
OIL DAMPED TONEARM
Ordinarily tonearms have a resonance frequency of
between 5 to 10 Hz. If the peak of the range of a tonearm
is too high, accurate tracking of the tonearm with the
record groove cannot be obtained because the tonearm
resonates at a frequency generated by ambient vibrations
or sound pressure, or the tonearm can be influenced by
adverse conditions of the record such as warps, etc.
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2. HO DAMPING knob
This controls the horizontal movement of the tonearm
while aiding to keep the tonearm's resonating point low.
Set the knob to the same indication number as the
optimum tracking force of this unit.
3. VQ DAMPING knob
This controls the vertical movement of the tonearm while
aiding to keep the tonearm's resonating point low. Set the
knob to the same indication number as the optimum
tracking force of this unit.
4. Speed select knob
Select a proper position of the speed select knob in
accorda~c .th the rpm of the record.
33- 73rpmrecord (LP) "33"
rpmrecord(EP) "45"
5. QUARTZ LOCK/PITCH CONTROL select button
QUARTZ LOCK:
Depress the button to the QUARTZ LOCK position (.-.)
for playing a record at an accurate rotation speed in the
quartz lock mode. In this case, the meter lights green.
PITCH CONTROL:
Depress the button a second time to obtain the PITCH
CONTROL position (-) in order to perform fine pitch
adjustment for the sound meeting your preference. In
this case, the meter lights orange.
6. PITCH CONTROL meter
When the QUARTZ LOCK/PITCH CONTROL select
button is set to the QUARTZ LOCK position, the meter is
green-Iit and the indicator displays "0".
When the QUARTZ LOCK/PITCH CONTROL select
button is set .to the PITCH CONT RO L position, pitch
control can be performed by turning the PITCH CON-
TROL knob and the meter is orange-lit.
#6 % means +6 %
b6% means -6 %
7. PITCH CONTROL knob
Fine pitch control can be performed with the QUARTZ
LOCK/ PITCH CONTROL select button set to the PITCH
CONTROL position. Pitch adjustment range is !6 %. The
indicator in the meter deflecting to the left (#) from the
center(O) indicates an increase to the accurate 33-1/3 or
45 rpm and the deflection to the right (b) means a de-
crease.
8. ANTI-SKATING knob
This device cancels out the centripetal force that pulls
the tonearm to the center of the platter. Th is prevents the
stylus tip from skating toward the center of the platter
and at the same time eliminates any excessive stylus tip
force on the inner wall of the record groove. Use the 8
marked dial when employing a spherical stylus. Use the
.marked dial when employing an elliptical stylus or
a SHIBATA stylus.
Turn the dial to the same number as on the tracking force
dial.
9. REPEAT knob
Decide how many times you want to re-Iisten to the re-
cord by using this knob. When you set the knob to "R",
the record will continue to play repeatedly.
Note: This knob cannot be turned to indicate from 1 -0
or 0 -1 if the ST ART button is depressed with
the power cord disconnected from the outlet. For
this, refer to the note in the section "Necessary
procedures prior to record playing" onpage 5.
10. START/REJECT buttons
When you start playing a record, depress the ST ART
button. The tonearm moves automatically to the position
of the first groove of the record pre-selected and gently
lowers itself onto the surface of the record to play it.
When you stop playing the record, depress the REJE'CT
button. The tonearm lifts, returns automatically to its
rest and the platter stops rotating.
If, however, the REPEAT knob has been set for a number
of repeats.. the tonearm performs the corresponding
number of prepeats before the platter stops rotating.
Note: When the dial of the repeat knob has been set to
numbers other than "0", the platter continues to
rotate and the power will not be turned off even
though you depress the R EJ ECT button or even
if the playing record has finished. When you want
the power to be turned off after the record has
played once, be sure to set the repeat knob to the
"0" mark.
11. RECORD SIZE select knob
Set the knob to the corresponding position to the size
of the record before you play it.
30 cm diameter record. "30" (12'1
25 cm diameter record. "25" ( 10")
17cmdiameterrecord "17"(7'1
12. Arm lifter lever
This is used when you want to raise the tonearm gently
or gently lower it. When you push it to the "UP" position,
the tonearm will be lifted up, and when you pull it to the
"DOWN" position, it will be lowered down gently onto
the record surface.
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NECESSARY PROCEDURES PRIOR TO RECORD PLAYING
1. Tracking force adjustment
1. Turn the anti-skating knob until the "0" mark is aligned
with the index arrow. (See Fig. 5)
2. Turn the HO damping knob until the "0" mark is
aligned with the index line. (See Fig. 6)
3. Turn the Vo damping knob until the "0" mark is
aligned with the index line. (See Fig. 6)
4. Place a disc on the platter.
5. Remove the stylus cover from the stylus. (See Fig. 7)
6. Release the tonearm clamp. (See Fig. 8)
7. Zero balance adjustment (See Fig. 9)
Turn the counterweight until the tonearm is balanced.
Stop turning the counterweight when the stylus tip is
almost touching the disc surface.
8. Return the tonearm to the rest and clamp it.
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Fig.7

9. Hold the counterweight at the adjusted position and
turn the tracking force dial until the "0" mark is aligned
with the index line on the tonearm weight shaft. (See
Fig.10)
10. Turn the counterweight in the B direction until the
"1.75" mark on the dial is aligned with the index line.
The "1.75" mark means an optimum tracking force of
1.75g is being applied. (See Fig.11)
Note:
Turning the counterweight in the direction A decreases
the tracking force and increase it in the direction B.
Turning the dial only, has no effect on the tracking force.
How to use the sub-counterweight (See Fig.12)
If you employ a heavier headshell or cartridge that makes it
impossible to obta in the zero balance with the counterweight,
mount the provided sub-counterweight onto the shaft and
slide it asclose to the counterweight aspossible.
Note:The sub-counterweight is suitable for cartridge/headshell
assemblies weighing 20 to 24 g. There is no need to use
it for the cartridge/headshell provided with this unit.
2. Anti-skating adjustment
Adjust the anti-skating force according to the cartridge
being used. Turn the anti-skating knob dial to the same
number on the tracki ng force dial. Use the 8 marked dial
when employing a spherical stylus. Use the. marked dial
for an elliptical or a Shibata stylus. Set the "1.75" of the
.marked dial to the index line since the OL-F6 is
provided with an elliptical stylus and the tracking force has
been adjusted to 1.75 g. (See Fig. 13)
3. Oil-damped tonearm adjustment
Turn the HO damping control and the Vo damping control
knobs until the "1.75" marks on the dial are al igned with
the index line, since the optimum tracking force for this
unit is 1.75 g. When not using the oil-damped function, turn
the knobs until the "0" mark is aligned with the index line.
(See Fig. 14)
Caution: 1) Turning the HO and Vo damping control knobs
while playing a record may cause damage to the
disc or to the stylus tip. Do not touch them
while playing a disc.
2) Align the "1 " marks of both the HO and Vo
damping control knobs with the index line
when using a cartridge requiring a tracking
force of 1 g.
Release the tonearm clamp and start playing the record.
-6~

Note: The indicator of the meter may make excessive
deflections (from right to left) when starting the
turntable or changing the rotation speed, or when
the PITCH CONTROL knob is quickly turned.
However, this does not mean a malfunction exists
with the unit.
How to make adjustments if the pitch control meter should
indicate incorrectly (when the meter does not display "0"
in the QUARTZ LOCK operation). (See Fig. 16)
1. Disconnect the power cord from the outlet.
2. Remove the platter from the motor shaft.
3. Turning the "0" position adjusting screw clockwise moves
the indication to the right.
Turning this screw counterclockwise moves the indication
to the left.
Generally, there is no need for adjustment since proper
adjustment has been performed at the factory. Should the
indication of the meter be incorrect, adjust it in the manner
above.
4. How to use the QUARTZ LOCK/PITCH CONTROL meter
(See Fig. 15)
QUARTZ LOCK (--):
When the QUARTZ LOCK/PITCH CONTROL select
button ( 1) is depressed to the QUARTZ LOCK position,
the meter (2) becomes green-Iit. In this mode the rotation
speed is accurately controlled by phase-Iocking to the quartz
oscillator frequency. This means that correct 33-1/3 or
45 rpm is obtained. The indicator (2) of the meter displays
"0".
PITCH CONTROL (..):
When performing fine pitch adjustment, depress the
QUARTZ LOCK/PITCH CONTROL select button (1) to
the PITCH CONTROL position and the meter becomes
orange-lit. In this mode, fine pitch adjustment can be
performed by turning the PITCH CONTROL knob (3)
within a range of :!:6 %. Turning the knob in the (+) di-
rection (counterclockwise) increases the rpm. Turning
it in the (-) direction (clockwise) decreases the rpm. The
meter indication of +6 %(#) shows the reproduced sound
raised by approxrmately a half tone.
The -6 %(b) indication shows the reproduced sound is
lowered by approximately a half tone.
By making these adjustments, record sound reproduction
meeting your preference can be obtained.
STYLUS REPLACEMENT
.Stylus replacement (See Fig. 17)
Replacement of the stylus can be easily made by simply in-
serting the stylus plug (A) into the jack (8) of the cartridge.
Service life of the stylus employed for this unit (DT -21 E8) is
generally as follows; varying, depending on the record con-
dition (dirty record groove etc.) :
Stereo LP record (30 cm) Approx. 300- 500 hours
Stylus are disposable items. Therefore, it is recommended to
buy a supply of styli when you buy the unit. When purchasing
them, specify the DT -21 E8 (JVC standard) .
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CARTRI DGE REPLACEMENT
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.Removal and mounting of the headshell (See Fig. 18)
Turn the connector nut in the direction of " A " to remove the
headshell from the tonearm. Turn it in the direction of "8"
for mounting the headshell.
.t"set screw
I
lA ~ Cartridge
u with stylus
Green: to RE or R- of cartridge
Blue: to LE or L- of cartridge,
Red: to R+ or R of cartridge
White: to L+ or L of cartridge ---Headshell
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~ ' Finger lift unit
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Mounting the cartridge (See Fig. 19)
1. Remove the 2 screws securing the cartridge onto the
headshell.
2. Install your cartridge onto the headshell provided or onto
a headshell of your selection.
3. The headshelllead wires are color-coded as follows, connect
them correctly.
White(+) L Red(+) R
Blue(-) LE Green(-) RE
4. Mount the cartridge properly onto the headshell and leave
the set screws slightly loosened, then, after completing the
"Overhang adjustment" (See page 9) tighten them firmly.
After this adjustment, be sure that the conditions concern-
ing the 3 adjustments on pages 5 and 6 are satisfactorily
met.
5. After each cartridge replacement, be sure to perform the
4 adjustments described on page 9.
The cartridge shown in the illustration is the
JVC Z-1 EB model.
Fig.19
How to use the scale on top of the headshell
.The scale indicates the distance (a) from the end of the
headshell to the cartridge securing screw in mm. (See
Fig.20)
.The optimum distance from the end of the headshell to
the cartridge securing screw of this unit is 48 mm (refer
to "Overhang adjustment" on page 9).
.Secure the cartridge on the "40" indication of the scale,
as the distance from the cartridge securing screw to the
stylus tip of the provided cartridge is 8 mm. The 48 mm
distance is thereby obtained. (See Fig. 21)
.When employing a cartridge of your selection, if you know
the distance from the cartridge securing screw to the stylus
tip, the overhang adjustment can be performed using the
scale on top of the headshell without using a template.
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Fig.21

ADJUSTMENT
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The following four adjustments are recommended only in the
event that you have replaced a cartridge or a headshell.
Otherwise, no adjustments are required.
Note: If you change the cartridge, it is recommended to use
the headshell provided on this unit.
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.Headshell mounting angle adjustment (See Fig. 22)
If the headshell is not horizontal and the stylus tip is not
perpendicular to the record surface, loosen the lock screws as
shown in the illustration and move the headshell to adjust the
stylus to be at right angles (900) with the platter. Eye-measure-
ment is sufficient.
Be sure to retighten the screws after the adjustment is
completed.
Fig. 22
.Tonearm elevator height adjustment (See Fig. 23)
The optimum clearance between the stylus tip and the record
surface is about 6 mm when the tonearm is supported by the
tonearm elevator. Turning the adjusting screws clockwise
lowers the height of the tonearm elevator and counterclock-
wise increases it.
j
4
.Overhang adjustment (See Fig. 24)
To obtain optimum overhang, when mounting the cartridge,
first align the cartridge's longitudinal axis to that of the
headshell and position the cartridge so that the distance
between the headshell's end face and the stylus tip equals
48mm.
Be sure to tighten the set screw after the adjustment. Errors
within 1 mm are negligible from a practical point of view.
Fig.24
.Stylus lead-in position adjustment (See Fig. 25)
Your OL.F6 was shipped from the JVC factory with its stylus
lead-in position adjustment made properly. However, if the
stylus lead-in position is changed due to cartridge changes,
etc., adjust it as in the following:
1. Place a 30 cm record on the platter .
2. Set the record size select knob to "30" ( 12") and operate
the turntable in automatic play.
3. Confirm if the stylus lead.in position is about 3 to 4 mm
inward from the outermost edge of the record disc.
4. If the lead.in position is not in the proper range, turn the
adjustor screw with a screwdriver clockwise to increase the
distance between the lead-in position and the outermost
edge, and counterclockwise to decrease the distance. Thus
determine the proper lead-in position point to be about 3,
to 4 mm inward from the disc edge.
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TROUBLESHOOTING SPECIFICATIONS
MOTOR SECTION
(These specifications apply only to the quartz lock mode.)
Motor: Coreless, DC type, FG servomotor
Servo system: Phase-Iocking to the quartz oscillator
Drive system: Direct drive
Speeds: 33-1/3, 45
Fine pitch adjustable
range: :t6 % ( in the pitch control mode)'
Wow and flutter: 0.025% (WRMS)
Signal-to-noise ratio: More than 78 dB (DIN-B)
Speed detection: Frequency generator
Starting torque: More than 1.2 kg-cm
Speed deviation: Within 0.002 %
Load characteristics: 0% (with 170 g total tracking force)
Drift: 0.0001 %/H
Power characteristics: 0% (:!:10 V)
Temperature
characteristics: 0.00005 %/oC
Platter: 32.7 cm
TONEARM SECTION
Type: Statically-balanced oil-damped
tonearm
233 mm
15 mm
Effective arm length
Overhang
Weight range including
headshell : 13-20g
24 g (when using the provided sub-
counterweight)
CARTRIDGE SECTION (Except for U.S.A., Canada & U.K.)
Type: Moving magnet (MD-1025EB)
Frequency response: 10 Hz -25,000 Hz
Output: 3 mV (1 kHz)
Channel separation: 25 dB ( 1 kHz)
(using the test record TRS-1)
Load resistance: 47 -100 k-ohms
Compliance: 10 x 10-{; cm/dyne (dynamic)
30 x 10~ cm/dyne (static)
Stylus: DT -ZIEB, 0.3 x 0.7 mil.
(diamond, elliptical)
Optimum tracking force: 1.75 g :t 0.25 g
GENERAL
Power consumption :
Dimensions
What seems to be trouble is not always real trouble.
Make sure first.
No sound at all1. Are the cables connected properly?
(Cables should be connected firmly and properly.)
2. Is the amplifier tape monitor switch turned on?
(The tape monitor switch should be turned off.)
3. Is the amplifier source select switch set to the "TUNER"
or "AUX" position?
(The select switch should be set to "PHONO".)
4. Is the connection to the amplifier proper?
(Connect properly.)
5. Is the amplifier volume control set to "M IN"?
(The volume knob should be turned clockwise to the
desired level.)
6. Is the tonearm connector nut loose?
(The connector nut should be tightened firmly.)
7. Are cartridge wires disconnected or loosely connected?
(The cartridge wires should be firmly connected.)
Noise when playing record. ..
1. Is the record worn?
( Replace with anew one.)
2. Is the stylus tip worn?
( Replace with anew one.)
3. Is dust on the stylus tip?
(Clean with a stylus cleaner.)
4. Is the record dusty?
(Clean the record grooves with a record clea ner .)
5. Are the red and white plugs from the turntable properly
connected to the "PHONO" terminals of the amplifier?
(Connect th~m properly.)
6. Is the grounding cord (black) connected to the grounding
terminal of the aimplifier?
(Connect it properly.)
The platter does no turn. ..
1. Is the power cord connected to the AC outlet?
(Connect it firmly.)
Loud howling. ..
1. Is the turntable too near the speaker?
(Position at least 40 cm from the speaker .)
2. Is the turntable located on the speaker box?
(Move to a place as far from the speakers as possible.)
3. Is the volume or bass tone control emphasized to distort
the sound?
(Decrease the volume or bass tone control to a level
providing undistorted sound.)
See back page
Height 14.2 cm (with closed cover)
Width 45.6 cm
Depth 40.0 cm
(Since the dimensions show only the
design measurements, consideration
is required when installing the unit in
a limited space such as a rack, etc.)
11 kg (without the packaging)
Weight
Accessories
EP adapter Place the adapter on the center
spindle when playing a record having
a bigger diameter center hole such as
a doughnut record.
1
Sub-counterweight
Design and specifications subject to change without notice.
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VICTOR COMPANY OF JAPAN, LIMITED
TOKYO. JAPAN
POWER SPECIFICATIONS * Power consumption in the stop mode.
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