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9.
Tracking gain
Connection
Oscilloscope
Main Unit
TP101—-©@
(TEO)
TP101-© O
(TEN
TPI01-—®©O
(GNO)
Oscillator
Counter
Oscilloscope
H
(Volume)
(Oscilloscope)
[value
|
. Push [11 Pause]. (Displays track
;
number 7
1.8 HkHz
3 Vp-p
e DC range
(t0.1V)
e X-Y mode
. Connect oscillator.
. Set oscillator to 1.8 kHz/3 Vp-p.
. Switch oscilloscope input to X-Y mode.
. Adjust VR104
[T-GAIN]
to
symmetrize Liseajous figures to X-Y
axes.
10. Tracking offset adjustment check
(1)
(2)
(3)
(4)
(5)
(6)
Adjust tracking offset again.
Push [@stop Jand stop disc.
Push
and check disc turns,
Note:
If disc does not turn, push[> PLAY ] again and check track number Lic'is diasplayed.
Check oscilloscope waveform upper and lower amplitude are same to base line.
Push
and stop disc.
Push
and remove the reference disc.
)
25
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