Sony GY-8240UWD Maintenance Manual page 195

Adjustment
Drum Entrance Side
7. Adjust the Tracking at Drum Entrance
Side
(1) Play back the YR2-1A (IRD: 0 to 200000)
with the REC head. (R FWD mode)
(2) Set the unit into the tracking adjustment
mode. (Refer to Section 1-11.)
(3) Operate the tracking setting value in the +
direction to bring the center of the RF
waveform to the 80 % of the maximum
output level.
(4) Loosen the upper flange of TG-2 so that the
tape does not come in contact with it.
(5) Turn the height adjustment nut of TG-1 so
that the RF envelope waveform is as shown
in Fig.1.
(6) Turn the upper flange of TG-2 and adjust the
height of TG-2 so that the RF envelope
waveform becomes flat. (Fig.2)
GY-8240UWD
GY-8240FC
Height
adjustment nut
. Alignment tape: YR2-1A (IDR : 0 to 200000)
<Fig.1>
- To be continued. -
<Fig.2>
TG-0
80 to 95 %
Marker
If the pressure against the
tape at TG-1 and 2 are too
much, the waveform becomes
as shown in the right figure.
(NG)
Marker
4-4. Tracking Adjustment
TG-1 TG-2
RF max
100 % (=RF max x 0.8)
4-15