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Verfügbare Sprachen
Verfügbare Sprachen
Note:
® The tension band positioning cam cannot be
adjusted with a cassette in place because the cam
will be located below the cassette. Repeat a
series of steps; empty
loading, adjustment,
cassette placement and position checking.
@ Turn the positioning cam clockwise to move the
tension pole to the right (in the black-arrow
direction). Turn it counterclockwise to move the
tension pole to the left (in the white-arrow
direction).
ain
Figure 4-20.
@ Adjustable range of the tension pole positioning
cam.
Tension arm shaft
Tension arm
Tension pole adjusting cam
Figure 4-21.
Adjust the tension pole positioning cam so that the
arrow mark on the cam be within 90° left and right
from the tension arm shaft's center.
CHECKING AND ADJUSTMENT OF
RECORD / PLAYBACK BACK TENSION
@ Remove the cassette housing control assembly.
@ Make a short-circuit between TP5001 (or jumper
pin 241) and TP5002 (or jumper pin 242) , both
located at the left on your side on the main PWB,
with a 22 ohm resistor. Now turn on the power.
@ Setting
1. Open the lid of the cassette torque meter, and
hold itwith two pieces of vinyl tapes.
2. Load the cassette torque meter into the unit.
3. Put the weight (500g) on the cassette torque me-
ter.
20
Weight to prevent
float (500g)
Cassette torque
meter
Figure 4-22.
@ Checking
1. Push the REC button to place the unit in the
record mode.
2. Check that the back tension indicated by the
gauge is within the set range 31 to 38 g-cm.
Notes:
1. Make sure that the video cassette tape is over
the retaining guide.
2. Make sure that the tape is not slack nor da-
maged at either end.
@ Adjustment
2. If the reading of the cassette torque meter is
more than specified, move the tension spring
hook toward B.
Figure 4-23.
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