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Tracking Error Adjustment
(1) Place a test record (YFSC-16)
on the turntable
and press the START/STOP button for lead-in.
(2) Adjust
with the adjustment
screw
so that the
tonearm base does not move just after the tone-
arm goes down.
(3) After completing step (2), cause the tonearm to
lead in, and then go UP after the tonearm base
moves.
(4) Check
the count
at this time, and then check
that the difference in count
when
the tonearm
PS-LX510
PS-LX510
3-2.
ELECTRICAL
ADJUSTMENT
Gain/Offset Adjustment
1.
Connect
the
pattern @) to B),
and
apply
regulated power supply (OV DC) to point ©.
2.
Connect
a VOM
to the emitter of Q104, and
adjust
the regulated
power
supply voltage for
goes down again is within 5 counts.
1V DC.
3.
Adjust RV101
(H1) and RV102
(H2) so that
the terminal
voltage
of IC103 9) (H1)
and
qd) (H2) are 4Vp-p.
......
Gain Adjustment
4.
Adjust RV103
(H1) and RV104
(H2) so that
the terminal waveforms of IC103 Q) (H1) and
@
(H2) are as shown
below (or so that DC
potentialisOV). ........
Offset Adjustment
tonearm base
5.
After
adjustment,
remove
the lead
wire
con-
necting pattern (A) to
'
tracking error adjustment screw
Ss
eee SS ee
ee
St
ace es
ee
— Adjustment Direction —
|
Note: Set the sweep time longer for easy wave-
RV103, 104
For (2) when the arm base moves, turn to the
form checking:
step (4)
step (2)
.
|
oscilloscope
right.
|
For (4) when
the difference
in count
is too
i
C)
large, turn to the left.
4 Vp-p
&
O
:
i
tes Aid, Gell Aan hae Rae, Tekan inet at J
Drop Point (30 cm) Adjustment
(1) Place a test record (YFSC-16)
on the turntable
and press the START/STOP button for lead-in.
ip =< Go
Measuring: Circuit intet ad
7q
en
a
(2) Adjust the horizontal position adjustment screw
7
10E210k2
; VIVM
,
so that the drop point at this time is within the
|
i
fee
[ /]
specification.
10kQ
aa hi
|
|
]
|
rear
r e e
ey ee
|
Specification:
9 — 14 counts
;
| ipbosk
+
,
toad w
|
16V
|
|
(jumpe
|
|
|
loom
b&-
eee
eee
-
|
LY Seema
Say, eet See
Make
eet oS ae
Ofset Adjustment
wrong
good
(AT VTVM OV)
horizontal position adjustment screw
count decreases when turned to the right
count increases when turned to the left
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