Sharp R-950A Service Manual

R-950A
11
CK = Check / RE = Replace
RE SHORTED POWER CORD
CK LOW POWER SUPPLY VOLTAGE
CK WALL OUTLET
CK OPENED OR SHORTED WIRE HARNESS
RE OVEN LAMP OR SOCKET
 Q FOIL PATERN ON P.W.B.
 P RELAY (RY-7)
 P RELAY (RY-6)
 P RELAY (RY-5)
 P RELAY (RY-4)
 P RELAY (RY-3)
 P RELAY (RY-2)
 P RELAY (RY-1)
 O KEY UNIT
 N TOUCH CONTROL PANEL
 M NOISE FILTER
 L MONITOR RESISTOR
 K DAMPER MOTOR
 K CONVECTION MOTOR
 K TURNTABLE MOTOR
 K FAN MOTOR
 J THERMISTOR 
 I GRILL HEATER
 I CONVECTION HEATER
 H THERMAL CUT-OUT 
 H TEMPERATURE FUSE 150˚C 
 G MAIN FUSE 20A
 F MONITOR FUSE M10A
 E DAMPER SWITCH
 E MONITOR SWITCH
E 2ND. INTERLOCK RELAY CONTROL SWITCH
 E 1ST. LATCH SWITCH
 D HIGH VOLTAGE CAPACITOR
 C H.V. RECTIFIER ASSEMBLY
 B POWER TRANSFORMER
 A MAGNETRON
POSSIBLE CASE AND  DEFECTIVE PARTS
PROBLEM
CONDITION
OFF

CONDITION
COOKING

CONDITION

COMMON 
MODE
MICROWAVE

COOKING
CONDITION

CONVECTION

COOKING
CONDITION

GRILL
COOKING
CONDITION

Home fuse blows when power supply cord is plugged into wall outlet. Fuse M10A blows when power cord is plugged into wall outlet. Display does not show anything when power cord is first plugged into wall outlet. Display does not operate properly when STOP/CLEAR pad is touched. (" : " or the time of day should appear on the display with beep sound during normal condition.) Oven lamp does not light with door opened. Oven lamp does not light at all. Oven lamp light, but turntable motor does not operate. Cooling fan motor does not operate. The oven stops after 1 minute. Oven does not go into a cook cycle, when START pad is touched. Low or no power is produced during microwave cooking (The food is heated incompletely or not heated at all) Extremely uneven heating is produced in oven load (food). Function of variable cooking does not operate properly except HIGH power. CONV indicator lights, but convection heater does not heat. Temperature in the oven cavity is lower or higher than preset. Convection cycle runs 3 minutes then the oven shuts down. Grill heater does not heat. Initial back up by convection does not work properly. SIMUL CONVECTION COOKING CONDITION  SIMUL GRILL COOKING CONDITION
See above "Microwave Cooking Condition" and "Convection Cooking Condition". See above "Microwave Cooking Condition" and "Grill Cooking Condition".

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