R-4G75M (serv.man5). Section 4 Circuit diagrams (page 30-34) - Sharp Home Appliance Service Manual (repair manual). Page 2

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31
R-4G75(W)M
R-4G75(B)M
Figure O-4. Oven Schematic-Dual Cooking Condition
SCEMATIC
NOTE: CONDITION OF OVEN
1. DOOR CLOSED
2. COOKING TIME PROGRAMMED
3. GRILL KEY TOUCHED
4. START KEY TOUCHED
NOTE:  * Parts with potentials above 250V
Figure O-3. Oven Schematic-Grill Condition
NOTE:  * Parts with potentials above 250V
SCEMATIC
NOTE: CONDITION OF OVEN
1. DOOR CLOSED
2. COOKING TIME PROGRAMMED
3. DUAL COOK KEY TOUCHED
4. START KEY TOUCHED
240V~50Hz
BLU / 15
BRN / 15
G–Y / 15
EARTH
0.22µ / 250V
FUSE 13A 
NOISE SUPPRESSION COIL
10M / 0.5W
680K / 0.5W 
0.0047µ / 250V
0.0047µ / 250V
THERMAL
CUT-OUT
160°C 
(OVEN)
MONITOR 
RESISTOR
0.8 / 20W
OVEN LAMP
FM
TURNTABLE MOTOR
FAN MOTOR
THERMAL
CUT-OUT
130°C~150°C
(GRILL)
2ND
LATCH
SWITCH
THERMAL
CUT-OUT
125°C (MG.)
STOP
SWITCH
* HIGH VOLTAGE TRANSFORMER
* ASYMMETRIC
  RECTIFIER
* CAPACITOR
  1.2µ
  AC2100V
* H.V. RECTIFIER
 * MAGNETRON
OL
L
N
GRILL HEATING ELEMENT
B2
B1
A1
COM
COM
RY-3
RY-2
NOISE
FILTER
MONITOR SWITCH
A3
FUSE
M8A
N.O
N.O
TTM
A5
RY-1
PRIMARY
LATCH
SWITCH
THERMAL
CUT-OUT
125°C 
(MAG.)
F1
F2
F3
AH. SENSOR
CONTROL UNIT
240V~50Hz
BLU / 15
BRN / 15
G–Y / 15
EARTH
0.22µ / 250V
FUSE 13A 
NOISE SUPPRESSION COIL
10M / 0.5W
680K / 0.5W 
0.0047µ / 250V
0.0047µ / 250V
THERMAL
CUT-OUT
160°C 
(OVEN)
MONITOR 
RESISTOR
0.8 / 20W
OVEN LAMP
FM
TURNTABLE MOTOR
FAN MOTOR
THERMAL
CUT-OUT
130°C~150°C
(GRILL)
2ND
LATCH
SWITCH
THERMAL
CUT-OUT
125°C (MG.)
STOP
SWITCH
* HIGH VOLTAGE TRANSFORMER
* ASYMMETRIC
  RECTIFIER
* CAPACITOR
  1.2µ
  AC2100V
* H.V. RECTIFIER
 * MAGNETRON
OL
L
N
GRILL HEATING ELEMENT
B2
B1
A1
COM
COM
RY-3
RY-2
NOISE
FILTER
MONITOR SWITCH
A3
FUSE
M8A
N.O
N.O
TTM
A5
RY-1
PRIMARY
LATCH
SWITCH
THERMAL
CUT-OUT
125°C 
(MAG.)
F1
F2
F3
AH. SENSOR
CONTROL UNIT
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