Samsung VP-D20, Service Manual

Page: 84 / 86

Alignment and Adjustments
Samsung Electronics
4-8
4-5(d) Check After Adjustment
1) Tracking Check
ΠPlay back the alignment tape.
´ Confirm that the minimum amplitude value(E min.)is 80% of the maximum value(E max.) or larger.
(Fig. 4-12)
ˇ Confirm that no large fluctuation occur on the waveform. (Fig. 4-13)
2) CUE and REV Check
ΠPlay back the alignment tape, and set to REV mode.
Confirm that the waveform peaks have a uniform Pitch.(Fig. 4-14 A)
If the track pitch is not uniform, do section 4-5(b) (Tracking adjustment) and 4-5(c) (P7 adjustment).
´ Set to CUE mode.
Confirm that the waveform peaks still have a uniform pitch. (Fig. 4-14 B)
If the track pitch is not uniform, do section 4-5(b) (Tracking Adjustment).
E
MIN
E
MIN
80(%)
E
MAX
E
MAX
Fig. 4-12
1
A
8
A
C
C
C
Fig. 4-13
a b c
b c a a b c
Fig. 4-14