Garrard TA/MK II Operation manual

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FOUR SPEED
SINGLE
RECORD PLAYER
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DEL
TA/MI II
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INS T ALLA TION
OPERATION
AND SERVICE
INSTRUCTIONS
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CONT ENTS
DESCRIPTION -
OPERATING INSTRUCTIONS
INSTALLATION
MAINTENANCE
SERVICE ADJUSTMENTS
SPARE PARTS LIST
Paga
2
2
4
5
7
9
Tbe GARRARD Model TA/Mark II four apeed sinale rec:ord Iltayina unit iJ
made under tbe followina llateDla:-
BrltIIh 673852 Sweden
.. 144814
741301
U.S.A. •• 2757006
748659 AWlualia .. 157656
SwluertlUld 283111 200074
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TH E"GARRARD"
MODEL
TA/MARK II
FOUR SPEED
SINGLE RECORD
PLAYING UNIT
"GARRARD" Record Playing Units are simple and
reliable in operation. They
are thoroughly
tested before leaving our Works and will give along
period of satisfactory service. Instructions for opera-
ting the Model
TA/Mark II Unit are given in this
manual-please follow these instructions carefully.
In common with all mechanical devices, minor
adjustments are sometimes necessary.
The Service
Instructions included have been compiled to cover
practically all the information necessary to ensure
efficient operation.
If, after carefully perusing this manual you are
still in doubt, our Technical Service Department will
gladly assist you.
NOTE.
Mention
of the Model, Schedule Number and
Type
of pickup head fitted, is desirable when com-
municating with the company.
The Schedule Number will be found on the Unit
{"late under the Tumtable.
Address your enquiries to:-
The Garrard Engineering &Mfg. Co. Ltd .•
Technical Service Department,
Newcastle Street,
Swindon, Wilts.
Telephone No.: Swindon
5381 (5 lines).
If you wish to make enqumes concerning the
return of aunit for repair or if you require Spare
Parts, address your letter
to:-
The Garrard Engineering &Mfg. Co. Ltd.,
Service and Spares Department,
Radnor Street,
Swindon, Wilts.
Telephone No.: Swindon 2606.
Page One
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The Garrard
Single
Model TAl Mark
Record Playing
DESCRIPTION
II Four
Unit
Speed
I"
The GARRARD Model TA/Mark II Unit is fitted
with adiecast aluminium pickup
arm to take the
Garrard plug in pickup moulding or shell into which
can be fitted awide range
of pickup cartridges.
OPERATING INSTRUCTIONS
The GARRARD Model T A/Mark II Rec.ord Play-
ing
Unit will playa 7",10" or 12" record at"either 78,
45, 33} or 16t r.p.m. To operate, proceed in the
following
order:-
See that the correct stylus is in position for the
type
of record to be played.
2Set the speed change knob to appropriate speed.
3Place the record on the turntable, lift the pickup
arm and move it to the right to start the motor,
then lower the pickup on to the record.
4 At the end of the record the motor will auto-
matically stop.
The pickup can then be lifted off
the record, returned to the rest
and the record
removed.
To play 7"--45 r.p.m. records having a It"
diameter centre hole, place the adaptor, supplied with
unit, on the centre spindle to locate record.
If it is desired to stop the record playing before
the end, gently lift the pickup off the record and move
it toward the centre to operate the auto-stop, then
return it to the pickup rest, press pickup
arm firmly
on to its rest when not
in use or for transit.
RECORDS.
To obtain the best results from your records,
always keep them in their envelope when not in
use-
do not leave them on the turntable. Preserve the
surface by keeping them as dust free as possible
and
it is recommended that records be cleaned with asoft,
clean,
damp cloth; also keep the turntable surface clean.
Avoid touching the music lines, keep records away
from
heat and keep in container when not required
for playing.
Do not play chipped or cracked records
as they will damage the stylus point.
Page Two
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SWITCH
TURNTABLE.
SPINDLE
TENSION SPRING KNOB FOR
fOR INTERMEDIATE SPEED
WHEEL ~HANGE
I NTERMEOIATE'
WHEEL
TRIP LEVER
FOR AUTO STOP
View with Turntable Remond
Diagram I
Page Three
KNOB FOR
STYLUS
PRESSURE
ADJUSTMENT
HOLE. FOR
TRANSIT SCREW
PICKUP ARM
REST
ADAPTOR FOR
PLAYING 45 R.P.M.
LARGE HOLE
RECORDS
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INSTALLATION
DIMENSIONS
The cabinet space required for fitting is 14t" long
and. 12t" back to front with 3" clearance above
and 21\-" clearance below the top of the motor board.
Where a12" record can overlap the cabinet sides, the
cabinet space can be reduced to 12-!-" long by lOt"
back to front. Sizes given include i" clearance all
round to allow the unit to float freely on its spring
suspension.
up terminals
of the reproducer in accordance with the
reproducer manufacturer's instructions.
Cut out the
motor board in the cabinet to the template, place the
unit in position with the leads through the cut out and
press down evenly.
The patented clip-in spring suspen-
sions will push through the three fixing holes and
be
retained in position as shown on Diagram 3. Adjust-
ment to level the unit is made by turning each
suspension screw, clockwise to lower and counter
clockwise to raise the unit.
I
\1
'\
TRANSIT SCREWS.
Two plated wood screws are supplied for use in
clamping the unit rigid to the motor board for transit
ADM
~'!.t!.
P'C!<'l,!P ~
Diagram 4
purposes. The small fibre washers should be fitted
under these screws to prevent marking the unit plate.
THESE SCREWS MUST BE REMOVED BE-
FORE USING THE UNIT. The position of the
screws is shown on the template and Diagram 1.
The plug in pickup head is also retained by a
transit screw (Diagram 4) which should be loosened
to readily remove the head.
With a
Turnover type pickup this screw should
remain tight.
Four
CORE
Pai
e
FITTING TO CABINET
Having opened the carton, the template and in-
structions will be found lying on top of the first liner
and underneath it will be found the turntable.
Asmall envelope containing two wood screws
and washers, for transit purposes, and the turntable
clip, will be found in one corner of the carton
at
the side of the second liner. Lift the unit out of the
carton and attach asuitable flexible lead for the power
supply to the two terminals in the front of the
terminal block. (Diagram 6).
At the same time, in-
spect the links in the block to ensure that they are set
correctly to suit the voltage and frequency of the
electrical supply. (Diagram 5). Replace the cover of
the terminal block. Alength
of screened pickup lead
should be soldered to the lower soldering tags of the
pickup terminal panel as shown on Diagram
2. The
other end of this lead should be attached to the pick-
MONAURAL ,<m STEREOPHONIC LEADS
FROM
PICKUP
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MAINTENANCE
The bearings in the motor and intermediate wheel
are
of the oil retaining type and rarely need lubricat-
ing. When the need for oil is apparent, remove the
turntable and while holding the
rubber tyred inter-
mediate wheel
out of the way, lubricate the motor
and pulley bearings with alight grade of machine oil.
Carefully remove every trace of oil from the driving
surfaces before replacing the turntable.
Connect both bars lhu.
for 200/250 volts A.C. Connect bars tbus for
100/130 volts A.C.
pressure under diametrically opposite sides of the rim
with the fingers and lifting with aslight twisting motion.
FITTING TURNTABLE.
Make sure that the speed change knob is in the
neutral position to release the tension on the
intermediate wheel.
2Place the turntable on its spindle
and gently revolve
it clockwise when it will fall into position.
Diagram 5
Terminal Block aad Voltage Change over Link Coanectlons
VOLTAGE AND FREQUENCY.
The "GARRARD" Model TA/Mark II Four Speed
Record Playing Unit
is suitable for use on 100/130 and
200/250 volts, at either 40, 50 or 60 cycles according to
the motor pulley supplied and the links on the terminal
block should be set to the correct position
to correspond
with the voltage
of the power supply as shown in
Diagram
5. Amotor driving pulley can be supplied for
40, 50 or 60 cycle power supply as required.
The motor should be earthed by connecting alead
from the earthing tag located under one of the
motor
end cover screws, to agood earth connection.
If the unit is to be used with aradio set or amplifier
having aUniversal
(ACjDC) chassis, or if the
reproducer is abattery set coupled to aUniversal H.T.
battery eliminator, it
is essential to make sure that
isolating components (condensers or transformer) are
incorporated in the pickup input circuit in the set other-
wise the pickup circuit can become "live."
Should the isolating components
not be included
in the set they should be fitted externally in series with
TO REMOVE TURNTABLE. the pickup leads. Consult your radio dealer if in doubt.
The turntable may be removed by taking off the Also, the leads from the radio set or amplifier to
centre retaining clip and applying equal upward the pickup should be screened and as short as possible.
Page
Five
To avoid slip resulting in speed variation, the rubber
tyre on the intermediate wheel, turntable rim and
motor pulley must be kept free from oil.
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TERMINALS FOR CONNECTING
POWER SUPPLY ALSO LINKS FOR
CHANGING VOLTAGE RANGE, UNDER COVER
EARTHING TAG
ON MOTOR
VOLTAGE AND FREQUENCY
RANGE INDICATED ON
MOTOR END COVER
LIFTING GEAR -" ~
FOR ,,~ 0
SPEED CHANGE
TAG STRIP FOR
PICKUP CONNECTION
CLIP IN
SPRING SUSPENSIONS
Underside View.
Diagram 6
Page Six
SW ITCH CLICK
iI /SUPPRESSER
HOUSING FOR
TURNTABLE SPINDLE
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SERVICE ADJUSTMENTS
50 cycles.
60 cycles.
40 cycles.
These notes are included to help the owner
of the
record player make any minor adjustments that may
become necessary.
SPEED.
The motor on the Model TA/Mark II is designed
to give the desired turntable speed within close
tolerances. Should the turntable run excessively fast
or slow, then the motor pulley should be examined to
see if it IS the correct one to suit the frequency of the
power supply.
The motor pulley is colour finished as follows to
distinguish the three
types:-
NICKEL
BRASS
COPPER
SPEED VARIATION.
It is essential that the driving surfaces of the
motor pulley, the
rubber inter-wheel and the turntable
rim, should be kept absolutely free from oil
and
grease. This is the first point which must be checked
if the turntable speed varies
and the pulley and inter-
wheel should be cleaned with a dry cloth if oil on the
driving surfaces
is suspected.
MOTORS.
If the motor fails to start when the unit is switched
on, first check the power supply
and ascertain if
current
is reaching the motor terminals. If correct.
switch off the power supply and examine the terminal
block
and see that the leads and screws are tight; also
examine the switch contacts which are accessible by
removing the cover from the switch. (Diagram I). Clean
and adjust if necessary.
Thick oil should not be used to lubricate the
motor
bearings as it will cause the motor to appear weak
or fail to start
and it will then be necessary to dis-
mantle the
motor and clean away all traces of the
thick oil.
It is essential to lubricate the motor bearings
with agood quality thin oil such as sewing machine oil.
PICKUP.
Two types of stylus are necessary for playing the
different types
of records. Astylus having apoint
radius of .0025"
is required for the standard 78 r.p.m.
(coarse groove) records
and one with apoint radius of
.001" for microgroove (fine groove) records.
The Model TAl Mark II is designed to take avariety
of turnover pickup heads or single purpose plug-in
pickup heads to suit the individual owner's require-
ments
and care should be taken to ensure that the
correct stylus
is presented to the record.
Turnover pickup heads are correctly set when the
speed
of the record to be played appears on top of
the turnover knob. If there is an arrow on the knob
it indicates the direction in which it should be turned
when achange
is required.
It is recommended that the stylus pressure be
checked periodically with a
Garrard Stylus Pressure
Gauge. Also its use
is essential should another type of
pickup be used other than that supplied with the unit,
as some adjustment
for the difference in pickup weight
may be required.
The stylus pressure adjusting screw is located .at
the rear
of the pickup arm, and to adjust the stylus
pressure, the knurled
knob should be turned to give
either an increase
or decrease in spring tension.
Page Seven
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The maximum recommended stylus pressure for
all types of records is 10 grammes. Should trouble
be experienced with the reproduction from apickup,
the head should be returned for examination to the
manufacturer whose name
or trade mark appears on
tbe cartridge.
Pickup cartridges must not be opened
or the
manufacturers will disclaim all responsibility.
NOTE.
Acontinuity test cannot be carried out on crystal
pickups with
an ohmmeter.
Should there be tendency for the pickup to track
incorrectly, check the pickup stylus pressure
and adjust
as explained above if found other than
10 grammes;
also make sure
that the flexible lead to the pickup is
not twisted or held in such manner so as to prevent
the free movement
of the pickup arm, and see that
the associated levers are free.
AUTO STOP MECHANISM.
The auto stop mechanism for automatically switch-
ing off the
motor at the end of arecord is of the
velocity type and
is of aspecial design to be very light
and sensitive in operation. It is set to commence
operation when the stylus reaches a
2t"radius. The stop
operates by the
auto stop lever being raised by asmall
cam attached to the turntable spindle when the pickup
arm runs in on the record run-off-groove. The auto stop
lever, on being lifted, trips the catch lever and operates
the
auto stop. If the auto stop fails to operate it may
be caused
by the auto stop lever being too low and it
should be raised
by giving the auto stop lever adjusting
screw (Diagram
1) about half aturn in aclockwise
direction.
GARRARD STYLUS
PRESSURE
GAUGE
MODEL SPG2
Page Eight
This Gauge, having a range of 0 to 15 grammes, provides a
simple, accurate and inexpensive instrument for measuring the
stylus pressure of pickups for playing Microgroove (Fine
Groove) Records.
The slide off base. containing a spirit level for checking the
level of the turntable, should be filled when used with a record
changer, this will give the pressure l" above the turntable
face, this being the mean reading fer a stack of records as
used on record changers.
With the base removed the reading is taken as near as possible
to the turntaole top, the stylus pressure thus being measured
atthe equivalent height of one record.
To prevent excessive record wear when playing Microgroove
(Fine Groove) Records, the turntable should be quite level and
stylus pressure not exceed 10 grammes.
Preted your records by making a periodical check of stylus
pressure and adjustin~ counter-balance if necessary. ObtaIn-
able with or without slide off base.
EVERY GRAMOPHONE ENTHUSIAST AND RADIO SERVICE
MAN SHOULD POSSESS
ONE OF THESE GAUGES.
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