Failures With The Tone Arm Or The Tone System; Record Not Properly Returned To Carrier - Wurlitzer One More Time Vinyl Operating Instructions Manual

Failures with the tone arm or the tone system

18.7 Failures with the tone arm or the tone system
Symptom
First second of music missing
!
because pick-up jumps off
starting groove
Starting point of pick-up
!
floating (varies from record to
record)
Record not played completely
!
- tone arm lifts off too early
Record playing but no sound
!
from the speakers
18.8

Record not properly returned to carrier

Symptom
Gripper arm does not move to
!
take the record home
Retuned record not properly
!
unclamped (not freed) in the
carrier
Record missing in
!
compartment is found in other
compartment or somewhere
about the chassis
24
Cause
Tone arm release lever and
!
bushing assembly opening too
late
Tone arm release lever and
!
bushing assembly opening too
early or tone arm loose on
shaft
Main cam motor restarted too
!
early by tone arm trip switch
K3
Defect in the system pick-up -
!
amplifier - speakers
Cause
Main cam motor MM not
!
starting
Main cam motor MM switched
!
off too early
Gripper arm delayed and
!
retarded by record binding
with the turntable (refer to
chapter 18.9.11, on page
Gripper arm generally moving
!
too fast
Possible faults
Tone arm release adjusting screw not
!
far enough in
Tone arm release adjusting screw not
!
far enough in. 2 worm screws M3x4 not
tight
Tone arm trip switch K3 maladjusted.
!
Remove adjusting screw to have play
time extended
Pick-up connector or speaker plug not
!
set at amplifier
Fuse Si4 open (= +30vDC missing.
!
This, however, would also disable motor
MM)
Grey line (pole) of amplifier-to-changer
!
cable broken off wiper K1 but shorted to
ground
Possible faults
Tone arm trip switch K3 not making,
!
maladjusted or open circuited. Refer to
chapter 18.7, on page 24
symptom could have developed while a
record was playing
Wiper switch K6 wrongly adjusted
!
(compare with symptom 4 in
18.6, on page 22
on page 26.
Maladjusted turntable chassis linkage
!
Burr at the turntable pilot or at the
!
records' centerring hole
27) Series resistor R15 (with motor MM)
!
shorted
OMT VINYL – edition: 13.08.2007
for faults if
chapter
and chapter 18.9.6,