Read Sharp R-22AMM (serv.man10) Service Manual online
R22AMM
10 – 3
[6] HIGH VOLTAGE CAPACITOR, HIGH VOLTAGE FUSE AND HIGH VOLTAGE RECTIFIER
ASSEMBLY REMOVAL
ASSEMBLY REMOVAL
To remove the components, proceed as follows.
1. CARRY OUT 3D CHECKS.
2. Remove the rear cabinet, too.
3. Remove two (2) screws holding earth side terminals of high voltage
rectifier assembly to the capacitor holder and oven cavity.
4. Disconnect all wire leads from the high voltage capacitor.
5. Disconnect high voltage fuse(s) from the high voltage trans-
former(s). Now, high voltage fuse(s) is (are) free.
6. Remove the three (3) screws holding the blower motor to the top of
oven cavity, the chassis support and air duct.
7. Disconnect high voltage wire lead(s) of the high voltage rectifier
assembly from the magnetron(s). Now, the high voltage rectifier
assembly is free.
assembly is free.
8. Remove two (2) screws holding the capacitor holder to oven cavity.
Now, the capacitors are free.
CAUTION: 1) DISCHARGE THE TWO HIGH VOLTAGE CAPACI-
TORS BEFORE TOUCHING ANY OVEN COMPO-
NENTS OR WIRING.
NENTS OR WIRING.
2) DO NOT REPLACE ONLY THE HIGH VOLTAGE REC-
TIFIER. IF IT IS DEFECTIVE, REPLACE THE HIGH
VOLTAGE RECTIFIER ASSEMBLY.
VOLTAGE RECTIFIER ASSEMBLY.
3) WHEN REPLACING THE HIGH VOLTAGE RECTIFIER
ASSEMBLY AND THE HIGH VOLTAGE CAPACITOR,
THE CATHODE (EARTH) SIDE TERMINAL OF THE
HIGH VOLTAGE RECTIFIER MUST BE SECURED
FIRMLY WITH A EARTHING SCREW.
THE CATHODE (EARTH) SIDE TERMINAL OF THE
HIGH VOLTAGE RECTIFIER MUST BE SECURED
FIRMLY WITH A EARTHING SCREW.
[7] BLOWER MOTOR REMOVAL
1. CARRY OUT 3D CHECKS.
2. Remove the rear cabinet, too.
3. Disconnect the wire leads from the blower motor and noise filter.
4. Remove the one (1) screw holding the blower motor angle to the
oven cavity.
5. Remove the one (1) screw holding the blower motor angle to the
chassis support.
6. Remove the one (1) screw holding the air duct to the blower motor.
7. Remove the four (4) screws holding the blower motor angle to the
blower motor.
8. Now, the blower motor is free.
[8] STIRRER MOTORS (UPPER AND LOWER) REMOVAL
1. UPPER
1. CARRY OUT 3D CHECKS.
2. Disconnect the wire leads from the stirrer motor (upper).
3. Remove the one (1) screw holding the stirrer motor (upper) to the
oven cavity.
4. Turn and lift up the stirrer motor (upper).
5. Now, the stirrer motor (upper) is free.
2. LOWER
1. Disconnect oven from the power supply.
2. Remove the stirrer motor cover by snipping off the material in four
portions.
3. Where the portions have been snipped off bend the portions flat.
No sharp edge must be evident after removal of the stirrer motor
cover.
cover.
4. Disconnect the wire leads from the stirrer motor (lower).
5. Remove the one (1) screw holding the stirrer motor (Lower) to the
oven cavity.
6. Now, the stirrer motor (lower) is free.
7. After replacement use one (1) screw (XOTWW40P08000) to fit the
stirrer motor cover.
[9] HOW TO RELEASE THE POSITIVE LOCKR CONNECTOR.
1. CARRY OUT 3D CHECKS.
2. Pushing the lever of positive lock
®
connector, pull down the posi-
tive lock
®
connector from the terminal.
3. Now, the connector is free.
CAUTION: WHEN CONNECTING THE POSITIVE LOCK
®
CONNEC-
TORS TO THE TERMINALS, CONNECT THE POSITIVE
LOCK
LOCK
®
CONNECTOR SO THAT THE LEVER FACES
YOU.
Figure C-1. Positive lock
® connector
Terminal
Push
Pull down
1
Lever
Positive lock®
connector
2
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