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7. Tracking gain
Connection
Oscilloscope
Main Unit
Counter
Terminal Pin: TO
Terminal pIn: TI[S
Terminal Pin: TE!
Terminal Pin: GND
* Caution: Connect oscillator after | 1! PAUSE]
pushed and servo function started.
(Volume)
(Oscilloscope)
. Push |tt PAUSE]. (Displays track number 94)
. Connect oscillator.
(4120 Hz) | 2.2 kHz
. Set oscillator to 2.2 kHz/3 Vp-p.
@3 Vp-p
(+120 Hz)
@ DC range
. Switch oscilloscope input to X-Y mode.
(+0.1V)
@ X-Y mode
_ Adjust VR104 [T-GAIN] to symmetrize Lissajous
figures to X-Y axes.
@ 2.2 kHz
Phase 90°
Waveform not right
X axis
8. Tracking offset adjustment check
(1) Adjust tracking offset again.
(2) Push [m STOP and stop disc.
(3) Push
and check disc turns.
(4) Check oscilloscope waveform upper and lower amplitude are same to base line.
(5) Push
and stop disc.
a
(6) Push
and remove the reference disc.
rads
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