Sharp VC-MH80 - Reel Disk Replacement and Adjustment

VC-MH80
VC-MH90
REPLACEMENT AND HEIGHTCHECKING
AND ADJUSTMENT OF REEL DISKS
l 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. Remove 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.
Tension arm ass’y
I
Supply main brake
Take-up main brake
Tensio: band /
I
Supply re’el disk Take-up:eel disk
l Reassembly (Supply reel disk)
1. Clean the reel disk shaft and apply oil to it.
2. Install a new supply reel disk onto the shaft.
3. Replace the tension band around the supply reel
disk, and insert it to the hole of the tension arm.
4 Check the reel disk height and reassemble the
supply main brake.
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.
l Reassembly (Take-up reel disk)
1. Clean the reel disk shaft and apply oi! to it.
2. 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 17), and check the brake
torque (see ‘page20).
l 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.
Set the master plane releasing
the reverse guide by a finger.
Note:
When the tension band is pressed in the direction
of the arrow for removal, the catch is hard to be de-
formed.
JYf3L
4 Reverse guide
Figure 4-5.
t
N
14
Master plane
Figure 4-6.