Sharp R-1482 Service Manual page 11

Over the range microwave oven
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CAVITY
THERMAL CUT-OUT
FUSE
20A
B7
B5
HOOD FAN
THERMAL
High
CUT OUT
B3
GRN
B1
Low
HOOD
GND
120 V AC.
CAPACITOR
60 Hz
HOOD
A1
MOTOR
HOOD
LAMP
HL
CAVITY
THERMAL CUT-OUT
FUSE
20A
B7
B5
HOOD FAN
THERMAL
High
CUT OUT
B3
GRN
B1
Low
HOOD
GND
120 V AC.
CAPACITOR
60 Hz
HOOD
A1
MOTOR
HOOD
LAMP
HL
MAGNETRON
TEMPERATURE FUSE
CONTROL UNIT
RY4
RY5
N.C.
RY3
A3
B9
A7
A5
TTM
HL
FM
SECONDARY
INTERLOCK
SWITCH
Figure O-1. Oven Schematic-Off Condition
MAGNETRON
TEMPERATURE FUSE
CONTROL UNIT
RY4
RY5
N.C.
RY3
A3
B9
A7
A5
TTM
HL
FM
SECONDARY
INTERLOCK
SWITCH
Figure O-2. Oven Schematic-Cooking Condition
COM.
N.O.
E1
DOOR
SENSING
SWITCH
E2
RY1
RY2
N.O.
COM.
OL
STM
COM.
N.O.
E1
DOOR
SENSING
SWITCH
E2
RY1
RY2
N.O.
COM.
OL
STM
9
SCHEMATIC
NOTE: CONDITION OF OVEN
1. DOOR CLOSED
2.
CLOCK APPEARS ON DISPLAY
POWER
TRANSFORMER
HIGH VOLTAGE
CAPACITOR
0.94 F
HIGH VOLTAGE
RECTIFIER
SCHEMATIC
NOTE: CONDITION OF OVEN
1. DOOR CLOSED
2. COOKING TIME PROGRAMMED
3. VARIABLE COOKING CONTROL "HIGH"
4. "START" PAD TOUCHED
POWER
TRANSFORMER
HIGH VOLTAGE
CAPACITOR
0.94 F
HIGH VOLTAGE
RECTIFIER
R-1480
R-1481
R-1482

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