Sharp R-950A Service Manual

R-950A
32
SCHEMATIC
NOTE: CONDITION OF OVEN
1. DOOR CLOSED.
2. CONVECTION PAD TOUCHED.
3. DESIRED TEMP. PAD TOUCHED.
4. COOKING TIME PROGRAMMED.
5. START PAD TOUCHED.
SCHEMATIC
NOTE: CONDITION OF OVEN
1. DOOR CLOSED.
2. GRILL PAD TOUCHED.
3. COOKING TIME PROGRAMMED.
4. START PAD TOUCHED.
Figure O-4. Oven Schematic-Grill Cooking Condition
NOTE: indicates components with potential above 250V.
Figure O-3. Oven Schematic-Convection Cooking Condition
THERMAL  CUT-OUT 170˚C (CONV.)
NOISE FILTER
MONITOR SWITCH
FUSE M10A
MONITOR RESISTOR 0.8Ω/ 20W
OVEN LAMP
FAN MOTOR
A5
A3
A1
E-6
CONTROL UNIT
DAMPER
SWITCH
THER-
MISTOR
2ND.
INTER-
LOCK 
RELAY
CONTROL
SWITCH
DAMPER MOTOR
CONVECTION MOTOR
TURNTABLE MOTOR
0.0047µ/AC250V
0.22µ/AC250V
0.0047µ/AC250V
NOISE SUPPRESSION COIL
CONVECTION HEATER
GRILL HEATER
MAGNETRON
POWER 
TRANSFORMER
ASYMMETRIC
RECTIFIER
H.V. RECTIFIER
CAPACITOR
1.13µ
RY4 RY5
RY6
RY1
TEMPERATURE
FUSE 150˚C
(MAGNETRON)
THERMAL CUT-OUT
95˚C (FAN)
THERMAL CUT-OUT
125˚C (GRILL)
220V
50Hz
FM
COM.
(RY1)
E-5E-4E-3E-2E-1
RY3
N.O.
(RY1)
COM.
(RY3)
COM.
(RY7)
COM.
(RY2)
N.O.
(RY2)
N.O. (RY3)
N.O. (RY7)
A-7
CM
DM
OL
FUSE 20A
RY2
RY7
TTM
1ST. LATCH
SWITCH
2ND. INTER- LOCK  RELAY 
NOTE: At the initial period, the relays RY3 and RY5 are energized,
and the convection heater and the convection motor are
energized until the cavity air temperature reaches 220˚C
MONITOR SWITCH
FUSE M10A
MONITOR RESISTOR 0.8Ω/ 20W
OVEN LAMP
FAN MOTOR
A5
A3
A1
E-6
CONTROL UNIT
DAMPER
SWITCH
THER-
MISTOR
2ND.
INTER-
LOCK 
RELAY
CONTROL
SWITCH
DAMPER MOTOR
CONVECTION MOTOR
TURNTABLE MOTOR
CONVECTION HEATER
GRILL HEATER
MAGNETRON
POWER 
TRANSFORMER
ASYMMETRIC
RECTIFIER
H.V. RECTIFIER
CAPACITOR
1.13µ
RY4 RY5
RY6
RY1
TEMPERATURE
FUSE 150˚C
(MAGNETRON)
THERMAL CUT-OUT
95˚C (FAN)
THERMAL CUT-OUT
125˚C (GRILL)
FM
COM.
(RY1)
E-5E-4E-3E-2E-1
RY3
N.O.
(RY1)
COM.
(RY3)
COM.
(RY7)
COM.
(RY2)
N.O.
(RY2)
N.O. (RY3)
N.O. (RY7)
A-7
CM
DM
OL
RY2
RY7
TTM
1ST. LATCH
SWITCH
2ND. INTER- LOCK  RELAY 
THERMAL  CUT-OUT 170˚C (CONV.)
NOISE FILTER
0.0047µ/AC250V
0.22µ/AC250V
0.0047µ/AC250V
NOISE SUPPRESSION COIL
220V
50Hz
FUSE 20A

Sharp R-950A Specifications

Power

ac line voltage	220 V
microwave frequency	2450 MHz
ac power required (microwave)	1.6 kW
ac power required (convection)	1.6 kW
ac power required (grill)	1.05 kW
ac power required (simul)	3.15 kW

Oven Specifications

oven capacity	41 litre
output power (microwave)	900 W
output power (convection heater)	1500 W
output power (grill heater)	1000 W

Weight and Dimensions

width	627 mm
height	378 mm
depth	492 mm
cavity width	410 mm
cavity height	245 mm
cavity depth	410 mm
weight	29 kg