Maintenance - Philips GA 212 Directions For Use Manual

ENGLISH
INTRODUCTION
This Hifi record player features electronic speed control
employing a tacho generator, photo-electronic.off-switch,
floating suspension of turnable and pick-up arm. electronic
touch controls for start, speed selection and stop and a head-
shell with the unique « shde-in'» system for SUPER Mcor-
tridges.
'The important advantages which result from the electronic speed
control are, high stability of tumable speed, negligible wow
'and flutter and accurate individual speed adjustment
The slow running high-torque motor. the high quality turntable
bearing and the precision drive belt ensure exceptionally low
tumble transmission,
The photo electronic off-switch works without any forces ac-
ting upon the virtually frictionless and fully resonance damped
pick-up arm. By means of the electronic touch controls operation
|g possible without exerting any mechanical force on the
'mechanism, thus avoiding unwanted vibration during operation
19 absolutely silent
With a new damping mechanism is a valuable
Ips to prevent records being damaged: it permits
ruption of the music and accurate cueing,
pension of the tone arm and the turntable
against mechanical shocks and vibration,
The stylus force is very low, the t r a c k i n g error neglible over the
antire recorded area, and the side thrust compensation equally
effective for all positions of the pick-up arm,
The head shell is of the universal type and is designed to carry
all types of cartridges with standard 1/2 inch (12.7 mm)
'mounting centres. SUPER M cartridges can be simply installed
'ands by means of the convenient « slide-in » system
al quality of this precision instrument wil,
int performance is maintained over a very
control as it
INSTALLATION (tig. 1)
Mains voltage adjustment
/ check that the preset operating
voltage, vi 'opening of voltage adapter A.
Corresponds to the local mains voltage. If this is not the case,
tu the adaptor with coin uni the comet voltage indication
i t i s important that this procedure is completed before
any attempt is made to connect the unit to the mains
supply.
(Eatipment for Canada and U.S.A. have no voltage adapter
dnd ae sot 10 117 V)
Transport locking
This apparatus incqportes «transit» securing of the sub.
suspended
Assembly
The vatious parts of the record player are packed seperately to
prevent them from damage during transit. The set is packed in
three stages namely
a. dust cov
b, turntable + counterweight + 45 rpm. adapter + hardware
¢. record player on base
Placo the turntable on the turntable spindle (B) and screw the
'counterweight (C) on the back (D) of the pick-up arm,
Mount the dustcover
Connection to mains and amplifis
Connect the m a i n s lead to socket (H) and insert the plug into
the socket outlet. Plug the pick-up lead into the gramophone
sotat of he amp ora, Neary al igh fliy pick-ups
'an equalizer/pre-ampiliier. Hf this is not included in
ou amps or radio-rceiver, the pre-ampliier GH 905 can
se
Stylus force adjustment (fio. 2)
Remove the protective cap from the pick-up cartridge. Depress
rocker key (5) on the end marked and set the knob of side
thrust compensation (F) in position O. Place the slide weight
(E) in position O against the pick-up arm bearing. Turn
Gounterweight (C) until the pick-up arm remains in balance
'when lifted free from its support and the pick-up arm lift. This
'means that the pick-up arm floats freely and does not move
upwards. or downwards.
Now push the slide weight (E) forwards until its chamfered
side is against the first, second, third or fourth ring on the
-up arm, for one, two, three or four grammes respectively,
(Fig. 2A shows an example of a stylus force of 1 gram.) The
'optimum stylus force for GP_400 and GP 401 SUPER M
'carindges is 2 grammes and for GP 412 SUPER M 1.2 grammes.
For the required stylus force of other cartridges consult their
technical data,
'Side thrust compensation
Turn the knob (F) in a position corresponding to that of the
slide weight (E). For example when the chamfered side is
halfway between the 2nd and 3rd ting (2.9 grammes) set
knob (F) to 3 positon halfway between 2 and 3. The calibration
with indication O is for cartridges with a spherical (conical)
'Stylus tip and the calibration with the indication © is tor
cartridges with an elliptical (bi-radial) stylus tip.
OPERATION (fig. 2)
2. Press down the mains switch (1). The lamp in touch con-
trol (3) lights uP
'. Place arecord on the turntable; for 45 p.m, records with large
Cente hole, use the adapter.
. Depress the rocker key (5) on the end marked
pick-up aim from its support and position it above th
io lhe pro the cara you wa 0 poy
4 Start the tormable. by 19, touch control (2) for
5 ram. or contol) for 38 rpm: The touched contol wil
i g h t op
Note: When its desired to change speed while the turntable
is revolving it is necessary to touch the stop control (3) first,
before the speed'can be chosen,
Depress key (8) atthe end marked The built in damping
'hechanism then smoothly lowers the pick-up onto the record.
£. Playing canbe intemupted at any desired moment by
Gopressing key (8) at the end marked. 2. The motor can be
Stopped by touching «stop control (3)
9. After the record has finished playing the photo-
Siteh cuts out the motor a fact which te visually in
the iluminotion of the stop control. Depress key (5)
'marked "ond return the pick-up onm to is support
fh. When playing is finished depress mains 'switch (1) to
'Switeh olf the apparatus completely.
FINE SPEED ADJUSTMENT
When musical instrument is. played along with the record
player it i possible that the pitch of the record needs to. be
Adjusted to that of the instrument. The pitch of th
ibe varied by varying the turntable speed. The later
by turning knob (G) coresponding to the turntable
When the turntable speed has to be readjusted 10
value, 'proceed. as follows. Press down. mains
Touch control (2) or (4) forthe desived speed. 1
figure 'on the. stroboscopic ing should. appear stationary
When viewed under an electric a
'The inner stroboscopic ring i fr 33 p.m, and the outer one for
45pm. if appears to move tum Knob (@), corresponding to
the required speed, anti-clockwise ("the figure appears to turn
Clockwise, and vice-versa
MAINTENANCE
The diamond stylus is subject to. very sit
recommended to have i checked regularly (e.
by your dealer.
Stylus cleaning i best acheived with a small soft haired brush
The life of records is prolonged if they are kept clean e . g , by
means of a Discleaner and are handled without touching the
recorded area,
Putting on, taking off or cleaning a record should only be done
while the turntable is at rest
'The mechanism of this record player does not requite any
maintenance since its bearings are self-lubricating,
INTERCHANGING THE PICK-UP CARTRIDGE
If its desired to change the pick-up cartridge this can easily be
removed as follows Pull suppor pick-up cartidgo careluly
from the head shell (fig. 44)
SUPER M pick-up cartridges (GP 400, GP 401, GP 412)
Pull the cartridge carefully from the suppor (fig. 5). Mounti
the new eartndge is done by pushing it into the support (fig. 6
Slide support ~ pick-up cartridge into the head shell (fig. 4B),
The electrical connections are made automaticaly.
Other pick-up cartridges with RETMA standard
mounting distances
With this record player is a small bag containing: a plastic pl
screws, nuts. distance pieces and a jig. The jig is to check that
{the stylus is in the correct position. This is achieved by mounting,
the cartridge with distance pieces and screws to the plastic
plate in such 2 way that when the plate and cartridge ate slid
lectronic