Service manual

R-340A
25
SCHEMATIC
NOTE: CONDITION OF OVEN
1.DOOR CLOSED
2.CLOCK APPEARS ON DISPLAY
NOTE: " " indicates components with potentials above 250V.
SCHEMATIC
NOTE: CONDITION OF OVEN
1. DOOR CLOSED
2. COOKING TIME PROGRAMMED
3. START KEY TOUCHED
Figure O-2. Oven Schematic-Cooking Condition
Figure O-1. Oven Schematic-OFF Condition
POWER TRANSFORMER
MAGNETRON
H.V. RECTIFIER
CAPACITOR 1.07µ AC2200V
TURNTABLE MOTOR
FAN MOTOR
OVEN LAMP
2ND INTERLOCK
RELAY CONTROL
SWITCH
MONITOR SWITCH
CONTROL UNIT
B1
B2
A3
OL
FM
TTM
N.O.
RY-1
COM.
A1
THERMAL CUT-OUT
125˚C (OVEN)
RY-2
MONITOR RESISTOR 0.8/20W
EARTH
BLU
BRN
220V 50Hz
G-Y
FUSE M10A
N
L
LINE CROSS CAPACITOR
0.068µ/AC250V
NOISE SUPPRESSION COIL
LINE BYPASS CAPACITOR 0.0022µ/AC250V
LINE BYPASS CAPACITOR 0.0022µ/AC250V
H.V. FUSE 0.75 A
NOISE FILTER
2ND 
INTERLOCK
RELAY
THERMAL CUT-OUT
95˚C (MG)
1ST. LATCH
SWITCH
POWER TRANSFORMER
MAGNETRON
H.V. RECTIFIER
CAPACITOR 1.07µ AC2200V
TURNTABLE MOTOR
FAN MOTOR
OVEN LAMP
MONITOR SWITCH
CONTROL UNIT
THERMAL CUT-OUT
95˚C (MG)
1ST. LATCH
SWITCH
B2
A3
OL
FM
TTM
N.O.
RY-1
COM.
A1
RY-2
MONITOR RESISTOR 0.8/20W
EARTH
BLU
BRN
G-Y
FUSE M10A
N
L
LINE CROSS CAPACITOR
0.068µ/AC250V
NOISE SUPPRESSION COIL
LINE BYPASS CAPACITOR 0.0022µ/AC250V
LINE BYPASS CAPACITOR 0.0022µ/AC250V
2ND INTERLOCK
RELAY CONTROL
SWITCH
B1
220V 50Hz
H.V. FUSE 0.75 A
NOISE FILTER
2ND 
INTERLOCK
RELAY
THERMAL CUT-OUT
125˚C (OVEN)