Sharp 14VT10X1, Service Manual

Page: 20 / 138

CHECKING AND ADJUSTMENT OF RECORD
PLAYBACK BACK TENSION
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Remove the cassette housing control assembly.
Open here
Cassette torque meter
Push the record button
to place the
the record mode
Figure
chassis
1. Put a cassette torque meter into the unit.
2. Push the record button to place the unit in the
record mode.
3. Check that the back tension indicated by the
gauge is within the set range 31 to 36
Notes
1. Make sure that the video cassette tape is over
the retaining guide.
2. Make sure that the tape is not slack nor
damaged at either end.
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Adjustment
If the reading of the cassette torque meter is less
than specified, move the tip of the tension spring
hook
toward the hole A.
2. If the reading of the cassette torque meter is
more than specified, move the tip of the tension
spring hook plate toward the hole
Put a thin screw driver in the shaft hole, lean
it toward you, and turn it for easer shift of the
tension spring hook plate in the direction of A or
B.
h o o k p l a t e
h o o k p l a t e
Figure 142. Not used.
CHECKING THE BRAKE TORQUE
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Checking the brake torque at the supply side
T o r q u e
,-Supply reel disk
Supply reel
disk
the gear
the center
Figure
Figure
143.
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