7-24
DVW-250/250P
2. T2 guide height adjustment
(1) Turn the tracking control volume using a screwdriver
so that the RF waveform is 80 % of the maximum
output,(Waveform B shown in figure).
(2) Turn the upper flange of the T2 guide using a tape
guide adjustment screwdriver so that the rising edge of
the envelop waveform makes flat as shown in figure C.
(3) Check that tape runs in contact with the upper flange
of the T2 guide.
(4) Tighten the set screws on the upper flange to the
following tightening torque.
Tightening torque: 9
×
10/
–2
N • m (0.9 kgf • cm)
3. T2 guide height check
Repeat the mode change from EJECT mode to PLAY
mode 3 times. Check that the rising edge of the envelop
waveform during PLAY mode is the same as the pre-
PLAY mode.
A
B
C
NG
NG
Trailing edge
80%
7-2-9. T2 Guide Height Adjustment
