Sharp VC-90ET

REMOVAL AND REASSEMBLY OF
CASSETTE HOUSING CONTROL ASSEMBLY
e
1.
2.
3.
Supply reel
disk
2.
Removal
Set the cassette ejected condition in the cassette
eject mode.
Unplug the recorder from the main source.
Follow the procedures below in the specified
order.
a) Remove the cassette loading belt ©.
b) Disconnect the FFC (Full Flat Cable) @.
©) Remove the cassette housing installation
screws @).
d) Slide and pull out the cassette housing control
assembly upward @.
Cassette housing installation
screw
ue (Full Flat Cable)
ou belt
When the belt is
detached, tuck it
as in the figure so
that it is kept free
from grease.
the tab in to the hole.
Cassette housing
(1) Cassette loading
When reassembling, insert
VC-SOET
5. Place the unit in the eject mode in removal or
reassembly of the cassette housing control
assembly.
6. Load the cassette once onto the cassette housing
control assembly after reassembly. (If the
cassette housing control assembly normally
operates after this, the phases of mechanism and
the cassette controller are accurately adjusted
after ejection.)
MECHANICAL OPERATION CHECK
WITHOUT CASSETTE
When power is on, the general operations of the
mechanism can be checked without a cassette.
Note the following points.
1. Check video search rewind and rewind, rotating
the take-up reel disk @ by hand (in either
normal or reverse direction). If it is not rotated,
the reel sensor works to shift the mechanism to
the eject mode.
2. When the stop button is pressed, the mechanism
does not stop at a normal stop position. It shifts
to the eject mode and stops.
3. When the stop button is pressed in the playback,
video search rewind, and video search forward
modes, the supply reel disk © keeps on rotating
for several seconds for elimination of tape slack
in the course of shifting to the eject mode. In
such a case, rotate the take-up reel disk ©
somewhat by hand, and the supply reel disk ©
stops, which can reduce the working time.
REPLACEMENT OF WORM WHEEL
ASSEMBLY
Figure 1-1. frame (L)
Reassembly
. Before installation of the cassette housing
control assembly, place the unit in the stop mode
with the power on, then unplug the power cord.
(The main body is placed in the eject mode.)
oe the procedures for removal in the reverse
order.
Notes:
1.
2.
3.
Be sure to unplug the power cord in removal and
reassembly.
Keep the cassette loading belt free from grease.
In case of its adhesion, clean the belt.
In using a magnet screw driver, be sure to keep it
away from the A/C head, FE (Full Erase) head, or
the drum.
-
In
removal
and
reassembly,
take
care
not
to
hit
the
cassette
housing
control
assembly
or
tools
against
the
guide
pin,
drum,
or
the
like
thereabout.
Start sensor
PWB
Cassette switch
connector
Worm bracket
B tight screw
Phase ‘Worm wheel ass'y
Cassette housing frame (R)
gear
Figure 1-2.