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Sharp VC-H92HM Serviceanleitung Seite 20

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Tension gauge
1,000-1,200 g
Capstan shaft
Figure 4-15.
=
. Detach the pinch roller from the capstan shaft.
2. Set the tension gauge by hooking the tension
gauge adapter onto the pinch roller shaft.
3. Gradually release the pressure to allow the pinch
roller to touch the capstan shaft.
When the
pinch roller just touches the capstan shaft, read
the indication on the gauge.
4. Check that the reading of the tension gauge is in
the range of 900 to 1200 g.
CHECKING AND ADJUSTMENT OF TENSION
POLE POSITION
@ 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
. Open the lid of cassette tape (E-180), and hold it
with two pieces of vinyl tapes.
2. Load the cassette tape into the unit.
3. Put the weight (500g) on the cassette tape.
=
Cassette tape
(E-180)
Weight to prevent
float (500g)
Figure 4-16.
@ Checking
1. Set a cassette tape, press the REC button and get
the tape loaded. Now check the tension pole po-
sition.
vVCc-H91 ov
VC-H91SM
VC-H92GM(
BK)
BK)
BK)
2. Visually check to see if the left end of the tension
poie is in alignment with the line 0.2 mm left of
the center line of the SI roller. Readjust as re-
quired in the following steps.
Tension pole
—>1
0.2mm!
Make the adjustment with the
beginning of a E-180 tape.
Figure 4-17.
@ If the end is at the left from the dotted line:
Figure 4-18.
1. Remove the cassette and press the REC button to
make an empty loading. Put a bladed screwdriv-
er into the tension band positioning cam and
turn it clockwise.
2. Place the cassette in position and check the ten-
sion pole position.
@ If the end is at the right from the dotted] ine:
Figure 4-19.
1. Remove the cassette and press the REC button to
make an empty loading. Put a bladed sc-ewdriv-
er into the tension band positioning cam to turn
it counterclockwise.
2. Place the cassette in position and check-the ten-
sion pole position.

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loading

Diese Anleitung auch für:

Vc- h92lm