Sharp R-4A56, Service Manual

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22
R-4A56
3) Install the fan blade to the shaft of fan motor by pushing
the fan blade with a small, light weight, ball peen hammer
or rubber mallet.
CAUTION:
*
Do not hit the fan blade strongly when installed
because the bracket may be transformed.
* Make sure that the fan blade rotates smooth after
installed.
* Make sure that the axis of the shaft is not slanted.
3. Re-install the main wire leads into the hole in the fan duct.
4. Re-install the fan duct to the oven cavity.
5. Re-install the magnetron air guide to the oven cavity with
one (1) screw.
6. Re-install the snap band of the wire leads to the oven
lamp to the hole of the oven cavity.
7. Re-install the H.V. wire A and filament lead into the holes
in the fan duct and then re-connect them to the magnetron,
referring to the pictorial diagram.
8. Re-connect the wire leads to the fan motor, referring to
the pictorial diagram.
INSTALLATION
1. Install the fan motor to the fan duct with the two (2)
screws and nuts.
2. Install the fan blade to the fan motor shaft according the
following procedure.
1) Hold the centre of the bracket which supports the shaft
of the fan motor on the flat table.
2) Apply the screw lock tight into the hole (for shaft) of the
fan blade.
Coil
Gap
Rotor
Bracket
Stator
Groove joint pliers
Rear view
Shaft
Axis
Stator
These are the position
where should be
pinched with pliers
Rotor
Side view
POSITIVE LOCK
®
CONNECTOR REMOVAL
1. Pushing the lever of positive lock
®
connector.
2. Pull down the connector from the terminal.
3. Now, the connector is free.
Note: If the positive lock
®
has a insulation sleeve, first
remove it. If you do not so, you can not push the
lever of positive lock
®
.
CAUTION: THE POSITIVE LOCK
®
TERMINAL CAN NOT
BE DISCONNECTED BY ONLY PULLING.
BECAUSE ONCE YOU (SERVICE PER-
SONAL) HAVE CONNECTED THE POSITIVE
LOCK
® CONNECTOR TO THE TERMINAL,
THE POSITIVE LOCK ® CONNECTOR HAS
BEEN LOCKED.
Terminal
Push
Pull down
1
2
Lever
Positive lock®
connector
Figure C-3. Positive lock ® connector
1. CARRY OUT 3D CHECKS.
2. Disconnect the main harness and low voltage harness
from the control panel.
3. Remove the single (1) screw holding the control panel to
the oven cavity.
4. Lift up the control panel assembly and pull it forward.
Now, the control panel assembly is free.
NOTE: 1. Before attaching a new key unit, remove remaining
CONTROL PANEL ASSEMBLY REMOVAL
adhesive on the control panel frame surfaces
completely with alcohol and so on.
2. When attaching the key unit to the control panel
frame, adjust the upper edge and right edge of
the key unit to the correct position of control panel
frame.
3. Stick the key unit firmly to the control panel frame
by rubbing with soft cloth not to scratch.
POWER SUPPLY CORD REPLACEMENT (for Australia Model)
Removal
1. CARRY OUT 3D CHECKS.
2. Disconnect the brown wire of the power supply cord from the fuse holder.
3. Remove the connector CE-230 by cutting the connected
wire leads to it.
Shaft
Table
Center of
bracket