Sony PS-4750 - PITCH CONTROL RANGE ADJUSTMENT; TROUBLE CHECKS

eFor 7-inch records, put the 45-rpm adaptor (supplied) over the
spindle.
eTo stop the turntable manually, set the START/CUE lever to
the center! ¥ ON] position and the tonearm will automatically
rise. Then bring the tonearm to the rest and set the lever to
the “OFF” position. The turntable will stop. Be sure to place
the tonearm in the armrest securely.
@The newly-developed rubber mat is designed to adhere to the
record to absorb any record vibration.
To take off the record, gently lift it up from the turntable. If
it is difficult to do so, first bring up one side of the record to
facilitate the removal.
PITCH CONTROL RANGE ADJUSTMENT
If correct speed cannot be obtained by adjusting the Pitch con-
trols, readjust the semi-fixed adjustment screws at the bottom
of the case. For the 33-1/3-rpm adjustment, turn the 33
semi-fixed screw, for 45-rpm adjustment, the 45 semi-fixed
screw.
@ Depress the POWER switch.
@ Center the 33 or 45 pitch control.
© Push the 33-rpm button (or 45-rpm button) and start turning
the turntable. Slowly turn the “33” (or “45”) semi-fixed adjust-
ment screw with the screw driver until the 33-rpm (or 45-rpm)
stroboscope pattern for your power line frequency remains
stationary.
“F”... make faster,
u
S”... make slower. (See © on page 2.)
TROUBLE CHECKS
The following chart will help correct most troubles which may
occur with the PS-4750. If the trouble persists after you have
checked these items, consult your Sony dealer.
Impaired tone quality
e Turntable not level
@improper tonearm balance (See @ ® on page 7.)
eImproper tracking-force
eImproper setting of the anti-skating compensator (See @ on
page 7.)
eDusty stylus
@ Worn stylus or defective record (The stylus life is approx. 400
hours of playing time.)
e@lncorrectly placed on or near a speaker
eIncorrect cartridge installation
eIncorrect turntable speed
No audio from one channel
@Loose attachment of the shell to the tonearm (See @ on page
6.)
@Low volume level setting for one channel of the amplifier
@Loose connection of phono cord
Groove skipping, Tonearm tends to skate out.
Tonearm does not advance. (Record repeats.)
@ Turntable not level
@Improper tracking-force
@improper setting of the anti-skating compensator
@ Defective record
Steady low-pitched sound (hum)
@Loose ground wire to the amplifier
@Loose connection between the shell and tonearm
@lncorrect connection of the cartridge lead wires (See @ on
page 4.)
REPACKING FOR SHIPMENT
The original shipping carton and packing material (which we
asked you to save) is the ideal container for use in shipping
the PS-4750 for repair work, or to another location. However,
to secure the maximum protection, it must be repacked in this
material precisely as before. The proper repacking procedure
is shown in the illustration. (See © on page 24.)
- Turn the two transit screws (pained red) fully clockwise to
fasten the turntable to the cabinet.