service chart
N.B.. The power supply should be disconnected for all servicing except voltage check. Numbers in brackets correspond to those on Diagrams 9 and 10.
FaultCauseAction
Turntable fails to re-1. No power supply reaching motor.Check supply with voltmeter. If correct,
volve.check action of motor switch (52), tightness
of wire links (40) and all connections.
2. Discontinuity of motor coil winding(s).Check resistance with ohm-meter. Connected for
220/250 volts, reading should be approximately 400
ohms and for 110/125 volts, approximately 100 ohms.
Replace coil(s) if necessary.
3. Intermediate wheel tension spring (15)Replace or re-secure spring.
stretched or detached.
Turntable speed too fast1. Incorrect motor pulley (14) for powerCheck pulley's identification: partially nickel
or slow for correctionsupply frequency.plated 50 c/s, brass 60 c/s. Replace if necesary
by speed control
2. Wire links (40) set incorrectly for powerCheck against diagram on cover of change-over
supply voltage.block or Diagram 4
Turntable speed varies1. Driving surfaces of motor pulley (14),Wipe surfaces with a clean dry cloth.
with audible effect.intermediate wheel (16) and/or turntable
(Wow or Flutter)contaminated with lubricant.
2. Intermediate wheel (16) height incorrect.See 'Adjustments' page 8.
3. Loose nut on magnet carrier (10).Tighten nut.
Rumbling sound1. Power supply lead too heavy or pulledReplace or re-route lead.
through speaker(s).tight.
2. Intermediate wheel (16) height incorrect.See 'Adjustments' page 8.
3. Motor transit screws (48) not released.Release screws. See Installation, page 11.
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ACEC
OTHERS
