Service manual

R-21HT
R-21HV
7
SCHEMATIC
NOTE: CONDITION OF OVEN
1. DOOR CLOSED.
2. SELECTATIME PAD TOUCHED.
3. COOKING TIME ENTERED.
4. START PAD TOUCHED.
Figure O-2 Oven Schematic-Microwave cooking Condition
SCHEMATIC
NOTE: CONDITION OF OVEN
1. DOOR CLOSED.
2. . APPEARED.
NOTE: Indicates components with potential above 250 V.
Figure O-1 Oven Schematic-OFF Condition
OL FM AM
OVEN 
LAMP
FAN 
MOTOR
ANTENNA 
MOTOR
AC120V
60 Hz
MONITOR
FUSE 20A
POWER
TRANSFORMER
CAPACITOR
0.94 µF
2400V
DOOR SENSING
SWITCH
SECONDARY
INTERLOCK SWITCH
CONTROL UNIT
THERMAL
CUT-OUT
125˚C (OVEN)
THERMAL
CUT-OUT
145˚C (MAG.)
PRIMARY INTERLOCK RELAY
CONTROL RELAY
MONITOR SWITCH
MAGNETRON
RECTIFIER
RY3 RY2
A3
A7
B1 B2
OL FM AM
OVEN 
LAMP
FAN 
MOTOR
ANTENNA 
MOTOR
AC120V
60 Hz
MONITOR
FUSE 20A
POWER
TRANSFORMER
CAPACITOR
0.94 µF
2400V
DOOR SENSING
SWITCH
SECONDARY
INTERLOCK SWITCH
CONTROL UNIT
THERMAL
CUT-OUT
125˚C (OVEN)
THERMAL
CUT-OUT
145˚C (MAG.)
PRIMARY INTERLOCK RELAY
CONTROL RELAY
MONITOR SWITCH
MAGNETRON
RECTIFIER
RY3 RY2
A3
A7
B1 B2