Sony GY-8240UWD Maintenance Manual page 197

Drum Exit Side
9. Remove the CL Guide Rail
Remove the two screws, then remove the CL
guide rail. (Refer to Step 5 in Section 3-20.)
10. Adjust the Tracking at Drum Exit Side
(1) Play back the YR2-1A (IDR: 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) Turn the upper flange of TG-3 counterclock-
wise by one to two turns so that the tape does
not come in contact with the upper flange of
TG-3.
(5) Turn the zenith adjustment screw of the CTL/
TC head so that the the RF envelope wave-
form is as shown in Fig. 1.
At this time, check that the tape does not in
contact with the upper flange of TG-3.
(6) Turn the upper flange of TG-3 so that the RF
envelope waveform becomes flat. (Fig. 2)
GY-8240UWD
GY-8240FC
. Alignment tape: YR2-1A (IDR : 0 to 200000)
<Fig. 1>
- To be continued. -
<Fig. 2>
CTL/TC head
Zenith adjustment screw
CTL/TC head
RF max
B
3 < B < 1
4
A
Maker
If the pressure against the
tape at TG-3 is too much, the
waveform becomes as shown
in the right figure. (In this case,
it is NG)
4-4. Tracking Adjustment
TG-3
A
4-17