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= Carrier Fails to Move
Carrier fails to move
e Is
an
auto
operation
mode in progress?
* Carrier
fails
to
move
when
the
tonearm
is
moved
back
and forth
by hand.
e Is
the
tonearm
still
clamped
into
the arm
rest?
NO
Check
soldering
and pat-
Is a
potential
difference
generated across both ends
of
either
CdS
element
when
the tonearm is mov-
ed
back
and
forth
by
hand?
Check
the
tracking
CdS
stage (lamp, CdS elements
and lead wires)
NO
YES
Is a potential
difference
generated
between
TP1
lyes
and 'TP2 when the tone
arm
is moved
back
and
forth by hand?
NO
Check
Q2 to Q5 and IC4
= Tonearm Movement
Check
mechanical section.
YES
Is a zero balanced poten-
tial difference obtained be-
tween
TP1
and TP2 when
the tonearm is held station-
ary
in the
up
position?
Check that the carrier base
is horizontal.
Has the cartridge been mounted?
Has tracking force been suitably adjusted?
Is tonearm in up position?
Is the tonearm in the V shaped groove?
Does the tonearm sit securely in the V shaped groove?
Is the tonearm free of abnormal slackness?
ue tees anal
justed with VR2?
une
Check
for defective
CdS
element and lead wires. It
is also
possible that the
tracking
sensor
mounting
has been displaced.
* %e ¥ ¥
26
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