Sharp VC-M23SM Servicehandbuch Seite 13

REPLACEMENT AND HEIGHT CHECKING AND
ADJUSTMENT OF REELDISKS = — —
*« Removal (Supply and Take-up reel disks) __
1. Remove the cassette housing control assembly.
2. Pull the tension band out of the tension arm.
3. Release the supply/Aake-up auxiliary brake lever by hand,
which makes unnecessary removal of the supply main brake
and the take-up main brake. . "
4. Open the hook at the top of the reel disk, and remove the reel
disk. .
<In the EJECT or UL STOP mode>
Tension Arm Ass'y Take-up main brake
Supply main brake
Tension band
Supply reel disk Take-up reel disk
* Reassembly (Supply reel disk) . — . ee
. Clean the reel disk shaft and apply oil to it. eter
2. Align the phase of the reel disk to that of the reel relay gear,
and install a new supply reel disk onto the shaft. oe
3. Replace the tension band around the supply reel disk, and
insert it into the hole of the tension arm with the supply
auxiliary brake lever released.
4. Check the reel disk height.
Notes: ;
@ Take enough care not to deform the tension band during
installation of the supply reel disk, .
@ Be careful not to damage the supply main brake and the reel
relay gear.
+
*« Reassembly (Take-up reel disk)
1. Clean the reel disk shaft and apply oil to it.
2. Release the take-up auxiliary brake lever to align the phase of
the reel disk to that of the reel relay gear and to install a new
take-up reel disk onto the shaft.
3. Check the reel disk height and reassemble the take-up main
brake.
Note:
Take care not to damage the take-up main brake.
* After reassembly, check the video search rewind back tension
(see page 16), and check the brake torque (see page 18).
Height checking and adjustment
Note:
Place the master plane onto the mechanism unit, taking care
not to hit the drum {see Figure 4-6).
Figure 4-4,
Note:
When the tension band is pressed in the direction of the arrow for
removal, the catch is hard to be deformed.
.@)
Figure 4-5,
Cassette lock
release shaft Positioning
pin
Take-up disk
Set the master plane releasing the
reverse guide by a finger.
Reverse guide
Master plane
Figu re 4-6.
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