Sony Digital Betacam DVW-707 Maintenance Manual page 229

Checks
1. Play Back
Play back ZR2-1/P (from 00 minute to 15 minite
segment).
2. CTL Head Position Check
(1) Set the switch S1-2 on the HN-260 board to
ON.
The tracking control becomes operable with
this setting.
(2) Turn the tracking control (RV1) on the HN-
260 board so that the output level at the
center of the RF waveform is the maximum.
Check that the marker of the RF waveform is
output in the low level of the CTL PULSE.
(3) Set the switch S1-2 on the HN-260 board to
OFF and put the tracking control into the FIX
state.
(4) Check that the output level of the RF wave-
form with the marker is not changed and is
the same as the level of the step (2).
If the specification is not satisfied, perform
step 3.
Adjustments
3. CTL Head Position Adjustment
(1) Turn the two screws which secure the
entrance head assembly 1/4 to 1/2 turn.
(2) Put the (_) 3 mm screwdriver in the notch of
the entrance head assembly.
(3) Turn the screwdriver and adjust the CTL
head position so that the marker of the RF
waveform is output in the low level of the
CTL PULSE, and the output level at the
center of the RF waveform is the maximum.
(4) While holding the screwdriver in step (3),
tighten the two screws.
4. CTL Head Position Re-check
Re-check the CTL head position according steps
1 and 2.
Adjustment After Adjustment
5. CUE/TC Head Position Adjustment
Refer to section 5-8.
DVW-790WS/709WS/707
DVW-790WSP/709WSP/707P P2V1
RF waveform
(CH-1)
50
CTL pulse
35
(CH-2)
Notch
Entrance head assembly
5-4. CTL Head Position Adjustment
Marker
50 50
50
Screws
5-19