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Adjusting Procedure
*
If you have replaced the optical pickup, spindle motor,
or turntable, do the following adjustment:
allen wrench.
_ Connect
the oscilloscope's CH. 1 probe across VR104's
(+) and VR106's
BUMS
(—) terminals via a
filter.
Input coupling...
DC
Note
1. If the measured amplitude is within a range of +/—-
15 mV, the turntable height is correct.
{f it is outside
this range, adjust the turntable height by using the
clearance gauge as a pry.
Turntable
Clearance gauge
grb
0.9mm
LLG,
UNM
ast.
4 ie
|
!
Spindle motor
S
Carbon resistor: 10kQ
Mylar capacitor: 0.1 wF
oP
Y
D
v
Adjusting fixture
¢ Temporary setting of each VR
Tracking gain adj.
[vA101] Best eye adj.
Tracking balance adj.
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