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THE
TONEARM
DOES NOT
ADVANCE DURING PLAY
ONLY.
play mode.
Does
a voltage
change occur at the
test point (P203) when the
'tonearm is moved
inwards by
hand?
Does
a voltage
appear at the
collector of Q209 when the
NOTE:
When
removeing
the
surface
cover, the following items must
be met.
1. Set to ON the cover switches
(the right black buttons at
the both sides of the cabinet).
2. Shield the light of the arm UP
sensor shown in Fig. 14 (cover
the arm UP sensor to protect
it from malfunction).
Q601 and D602 of the
arm angle sensor are
defective. So replace
them.
tonearm is moved
inwards by
hand?
Does
pin 8 of
1201 become
when the tonearm is
moved inwards
by hand?
Does
the collector
of Q205 become
"L" when the tonearm is
moved inwards
by hand?
Q207 is defective. so replace it.
When
from Vec?
1201 is defective. So
replace it.
replace it.
Q205 is defective. So
replace it.
—16—
THE TONEARM
OPERATES
ABNORMALLY
WHEN
IN THE
PLAY MODE.
Just after the tonearm lowers
down on the record, it suddenly
moves inwards scratching the
record disc.
With the tonearm at the UP posi-
tion, adjust VR201 so that
3.520.2 V appears across the test
point (P203).
the tonearm
is moved inwards
by hand, does the collector
voltage of Q202 drop
0.6 V as viewed
Q203 is defective. So
Either Q201
or Q202 is
defective. So
replace it.
L-E600
No. 2586
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