Sharp R-1505F Service Manual - Page 14

R-1500 R-1501 R-1505 R-1506 CK LOW VOLTAGE CK NO POWER AT OUTLET RE SHORT IN POWER CORD CK OPENED OR SHORTED WIRING CK HOOD MOTOR CAPACITOR RE HOOD LAMP OR SOCKET RE TURNTABLE MOTOR RE FAN MOTOR RE OVEN LAMP OR SOCKET P FOIL PATERN ON P.W.B. O DEFROST CENTER N RELAYS (RY-5), (TY6) N RELAY (RY-4) N RELAY (RY-3) N RELAY (RY-2) N RELAY (RY-1) M KEY UNIT L CONTROL UNIT K HOOD FAN MOTOR J HOOD HERMAL CUT-OUT I MONITOR FUSE H MONITOR SWITCH G SECONDARY INTERLOCK SYSTEM F PRIMARY INTERLOCK SWITCH E TEMPERATURE FUSE OR THERMAL CUT-OUT D HIGH VOLTAGE CAPACITOR C H.V. RECTIFIER B POWER TRANSFORMER A MAGNETRON POSSIBLE CASE AND DEFECTIVE PARTS TEST PROCEDURE 12 CONDITION PROBLEM OFF CONDITION IDLE CONDITION MICROWAVE COOKING CONDITION Home fuse blows when power cord is plugged into wall receptacle. Monitor fuse blows when power cord is plugged into wall receptacle. Display does not illuminate when power cord is first plugged into wall receptacle. Display does not operate properly when STOP/CLEAR button is touched. (The time of day should appear on the display with beep sound during normal condition.) Oven lamp does not light with door is opened. Hood fan motor operates when power cord is first plugged into wall receptacle. Temperature of oven base seems more than 140˚F (60˚C) because of operation of the range below. But hood fan motor does not turn on automatically. (Normally, food fan motor should be operating at low speed.) Hood lights do not turn on when LIGHT HI/LO button is pressed. Hood fan motor does not rotate at all with touched FAN HI/LO button. Speed of the hood fan motor does not change when the FAN HI/LO button is touched for this function. Oven lamp does not light in cook cycle. (But it does light when door is opened.) Fan motor does not operate. (Oven lamp and turntable motor operate.) Turntable motor does not operate (Oven lamp lights and fan motor operate.) Oven does not go into cook cycle when START button is touched Oven seems to be operating but little or no heat is produced in oven load. (Food incompletely cooked or not cooked at all at end of cook cycle.) Oven goes into a cook cycle but extremely uneven heating is produced in oven load (food). Variable cooking does not operate properly except Cooking Power 10 (PHI) mode. Function of DEFROST CENTER does not operate properly. Oven goes into DEFROST CENTER but food is not defrosted well. CK = Check / RE = Replace