Sharp R-220EW Service Manual page 9

SCHEMATIC
NOTE: CONDITION OF OVEN
1. DOOR CLOSED
2. CLOCK APPEARS ON DISPLAY
C/T FUSE
A3
CONTROL UNIT
GRN
120V AC
60 Hz
OL
OVEN
LAMP
SECONDARY
INTERLOCK
SWITCH
Figure O-1. Oven Schematic-Off Condition
SCHEMATIC
NOTE: CONDITION OF OVEN
1. DOOR CLOSED
2. COOKING TIME PROGRAMMED
3. VARIABLE COOKING CONTROL "HIGH"
4. "START" PAD TOUCHED
C/T FUSE
A3
CONTROL UNIT
GRN
120V AC
60 Hz
OL
OVEN
LAMP
SECONDARY
INTERLOCK
SWITCH
Figure O-2. Oven Schematic-Cooking Condition
NOTE: " " indicates components with potential above 250V.
MAGNETRON
THERMAL CUT-OUT
COM.
N.O.
(RY-1) (RY-2)
PRIMARY
INTERLOCK
RELAY
A1
B1 B2
DOOR
SENSING
MONITOR
SWITCH
SWITCH
TTM
FM
TURN-
FAN
TABLE
MOTOR
MOTOR
MAGNETRON
THERMAL CUT-OUT
COM.
N.O.
(RY-2)
(RY-1)
PRIMARY
INTERLOCK
RELAY
A1
B1 B2
DOOR
SENSING
MONITOR
SWITCH
SWITCH
TTM
FM
TURN-
FAN
TABLE
MOTOR
MOTOR
7
POWER
TRANSFORMER
CAPACITOR
0.86µF
RECTIFIER
POWER
TRANSFORMER
CAPACITOR
0.86µF
RECTIFIER
R-220EW
R-230EK
R-230EW