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a) eS -iele)
= Elevation Operation Failure
Elevation operation failure
*Press the elevation switch
on and off after the tone-
arm
returns
to the arm
YES|
Is the up indicator LED on
rest following completion
or off?
of
an
auto
operation
mode.
2 ie)
Is IC1 pin 25 at L level
when the elevation switch
is pressed?
Check circuit pattern from
elevation switch up to IC1
pin 25.
NO
YES
Are pins 32 and 33 of IC1,
and also pins 2 and 8 of
Check
the
pattern
and
IC6 at H and L levels re-
down
detector
switch
spectively?
Are pins 7 and 8 of IC6
{NO
aa
H/L inverted?
Check circuit pattern
YES
Does a voltage of about 4V
register across both termi-
Break in lead wire
nals of the geared
motor?
Check the elevation mech-
anism
27
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