5-13
DVW-790WS/709WS/707
DVW-790WSP/709WSP/707P P2V1
5-2. Video Tracking Adjustment
REV search mode
Press the REW button after pressing the PLAY mode.
(The PLAY and REW buttons on the keyboard light up.)
(4) When repeating the mode change from the STOP mode to PLAY mode 2 or 3 times, check that the
RF waveform during PLAY mode is the same as the pre-PLAY mode, and satisfies the specifications
1. If the RF waveform is changed or the specification is not satisfyed, perform step 3 and higher
(drum entrance side or drum exit side).
Adjustments
Drum entrance side
3. Tracking Adjustment of Drum
Entrance Side
(1) Play back ZR2-1/P (from 00 minute to 15
minute segment).
(2) Loosen the set screw at the top of the S2
guide using the tape guide adjustment
screwdriver.
(3) Turn the upper flange of the S2 guide
counterclockwise using the tape guide
adjustment screwdriver so that the 1.5 peaks
are observed on scope as shown.
Check that the clearance exists between
lower flange of the tension regulator and S5
guides, and lower edge of the tape.
If no clearance exists, adjust height of the
tension regulator and S5 guides.
(4) Check that no clearance exists between
upper flange of the S2 guide and upper edge
of the tape.
(5) Turn the upper flange of the S2 guide
clockwise so that the RF waveform be-
comes almost flat.
(6) Set the switch S1-2 on the HN-260 board to
ON. This setting enables the tracking
control adjustment.
(7) Play back ZR2-1/P. (from 00 minute to 15
minute segment).
(8)
Turn the tracking control so that the RF wave-
form is 80% of the maximum output level.
(9) Turn the upper flange of the S2 guide and
fine-adjust height of the S2 guide so that the
RF waveform is flat and satisfies the
specifications 1.
(10) Tighten the set screw at the top of the S2
guide.
(11) Loosen the set screw at the upper flange of
the S5 guide. Turn and adjust the upper
flange so that there must be a clearance
between the top edge of the tape and the
upper flange, and a clearance between the
bottom edge of the tape and the lower
flange.
(12) Tighten the set screw at the top of the S5
guide.