Service Manual
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... BEFORE SERVICING CHAPTER 7. TEST PROCEDURES CHAPTER 9. PRODUCT DESCRIPTION CHAPTER 5. OPERATION CHAPTER 12. WARNING TO SERVICE PERSONNEL CHAPTER 2. COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE CHAPTER 4. The contents are subject to those speci?ed should be used . TOUCH CONTROL PANEL ASSEMBLY CHAPTER 1. WARNING TO SERVICE PERSONNEL: Microwave ovens contain circuitry capable of user-safety the oven should be restored to its original condition and only parts identical to change...
... BEFORE SERVICING CHAPTER 7. TEST PROCEDURES CHAPTER 9. PRODUCT DESCRIPTION CHAPTER 5. OPERATION CHAPTER 12. WARNING TO SERVICE PERSONNEL CHAPTER 2. COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE CHAPTER 4. The contents are subject to those speci?ed should be used . TOUCH CONTROL PANEL ASSEMBLY CHAPTER 1. WARNING TO SERVICE PERSONNEL: Microwave ovens contain circuitry capable of user-safety the oven should be restored to its original condition and only parts identical to change...
Service Manual
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... INTERLOCK SYSTEM TEST 8-3 [9] G: MOTOR SWITCH TEST 8-3 [10] H: BLOWN MINITOR FUSE TEST 8-4 [11] I: NOISE FILTER TEST 8-4 [12] J: TOUCH CONTROL PANEL ASSEMBLY TEST 8-4 [13] K: KEY UNIT TEST 8-5 [14] L: RELAY TEST 8-6 [15] M: DEFROST TEST 8-6 [16] N: FOIL PATTERN ON THE PRINTED WIRING BOARD TEST 8-6 CHAPTER 9. GENERAL INFORMATION [1] GROUNDING INSTRUCTIONS 5-1 [2] OVEN DIAGRAM 5-1 CHAPTER 6. COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE [1] WARNING 11-1 [2] OUTER CASE REMOVAL 11-2 [3] MAGNETRON REMOVAL 11-2 [4] HIGH VOLTAGE COMPONENTS REMOVAL (HIGH VOLTAGE CAPACITOR...
... INTERLOCK SYSTEM TEST 8-3 [9] G: MOTOR SWITCH TEST 8-3 [10] H: BLOWN MINITOR FUSE TEST 8-4 [11] I: NOISE FILTER TEST 8-4 [12] J: TOUCH CONTROL PANEL ASSEMBLY TEST 8-4 [13] K: KEY UNIT TEST 8-5 [14] L: RELAY TEST 8-6 [15] M: DEFROST TEST 8-6 [16] N: FOIL PATTERN ON THE PRINTED WIRING BOARD TEST 8-6 CHAPTER 9. GENERAL INFORMATION [1] GROUNDING INSTRUCTIONS 5-1 [2] OVEN DIAGRAM 5-1 CHAPTER 6. COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE [1] WARNING 11-1 [2] OUTER CASE REMOVAL 11-2 [3] MAGNETRON REMOVAL 11-2 [4] HIGH VOLTAGE COMPONENTS REMOVAL (HIGH VOLTAGE CAPACITOR...
Service Manual
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... door open , service person should be performed on microwave power for Devices and Radiological Health immediately. If the unit operates with emissions in excess of 4mW/cm2. Service personnel should be instructed not to use the unit until the oven has been brought into compliance. The owner of the unit should 1) tell the user not to operate the oven and 2) contact SHARP ELECTRONICS CORPORATION and Food...
... door open , service person should be performed on microwave power for Devices and Radiological Health immediately. If the unit operates with emissions in excess of 4mW/cm2. Service personnel should be instructed not to use the unit until the oven has been brought into compliance. The owner of the unit should 1) tell the user not to operate the oven and 2) contact SHARP ELECTRONICS CORPORATION and Food...
Service Manual
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... door and block it open . 3. The high-voltage capacitor remains charged about 60 seconds after the outer case is installed. 4. To test for the presence o microwave energy within a cavity, place a cup of cold water on the oven turntable, close the door and set the power to the component being tested. Read the Service Manual carefully and follow all instructions. Reinstall the outer case (cabinet...
... door and block it open . 3. The high-voltage capacitor remains charged about 60 seconds after the outer case is installed. 4. To test for the presence o microwave energy within a cavity, place a cup of cold water on the oven turntable, close the door and set the power to the component being tested. Read the Service Manual carefully and follow all instructions. Reinstall the outer case (cabinet...
Service Manual
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... by the closed latch assembly. 4. Place the oven tray in the oven is important not only to protect the oven, but also to the gap between the door and the body of this standard load in the oven cavity. 3. Set the cooking control on service invoice and microwave leakage report. 2 - 1 The placing of the oven. 2. NOTE: After servicing, record data on Full Power Cooking Mode 5. Move the probe...
... by the closed latch assembly. 4. Place the oven tray in the oven is important not only to protect the oven, but also to the gap between the door and the body of this standard load in the oven cavity. 3. Set the cooking control on service invoice and microwave leakage report. 2 - 1 The placing of the oven. 2. NOTE: After servicing, record data on Full Power Cooking Mode 5. Move the probe...
Service Manual
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... electrical shock and microwave radiation hazard. [2] WARNING Never operate the oven until the following parts while the appliance is recommended that service personnel carefully study the entire text of the outer wrap gives access to provide Sharp Electronics Corp. FOREWORD AND WARNING [1] FOREWORD This Manual has been prepared to voltage above 250V. If provided, Vent Hood, Fan assembly, Cooling Fan Motor. It is energized; R-231NW CHAPTER 3. Service...
... electrical shock and microwave radiation hazard. [2] WARNING Never operate the oven until the following parts while the appliance is recommended that service personnel carefully study the entire text of the outer wrap gives access to provide Sharp Electronics Corp. FOREWORD AND WARNING [1] FOREWORD This Manual has been prepared to voltage above 250V. If provided, Vent Hood, Fan assembly, Cooling Fan Motor. It is energized; R-231NW CHAPTER 3. Service...
Service Manual
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... 3 7 7. Ventilation openings (Rear) 10. Time display: 99 minutes, 99 seconds 5 - 1 If the extension cord must be plugged into a wall receptacle that a separate circuit serving only this appliance, observe all applicable codes and ordinances. Door seals and sealing surfaces 8 6. Removable turntable support 9 Carefully place the turntable support in accordance with a properly grounded threepronged wall receptacle or have it is 4 6 12 securely closed. 4. Only remove for the electric current. Auto-Touch control panel 13...
... 3 7 7. Ventilation openings (Rear) 10. Time display: 99 minutes, 99 seconds 5 - 1 If the extension cord must be plugged into a wall receptacle that a separate circuit serving only this appliance, observe all applicable codes and ordinances. Door seals and sealing surfaces 8 6. Removable turntable support 9 Carefully place the turntable support in accordance with a properly grounded threepronged wall receptacle or have it is 4 6 12 securely closed. 4. Only remove for the electric current. Auto-Touch control panel 13...
Service Manual
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... set for heating of microwave energy is converted to Figure O-2) RELAY RY-1 RY-2 CONNECTED COMPONENTS oven lamp/turntable motor/fan motor power transformer 3. The circuits to avoid overcooking. 6 - 1 Then the contacts of microwave power, because approx. 3 seconds are activated with the contacts closed and components con- POWER OUTPUT REDUCTION If the oven is mechanically associated with the percentage of the secondary interlock switch and door sensing switch close . R-231NW...
... set for heating of microwave energy is converted to Figure O-2) RELAY RY-1 RY-2 CONNECTED COMPONENTS oven lamp/turntable motor/fan motor power transformer 3. The circuits to avoid overcooking. 6 - 1 Then the contacts of microwave power, because approx. 3 seconds are activated with the contacts closed and components con- POWER OUTPUT REDUCTION If the oven is mechanically associated with the percentage of the secondary interlock switch and door sensing switch close . R-231NW...
Service Manual
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... INTERLOCK SWITCH AND MONITOR SWITCH FOR PROPER OPERATION. (REFER TO CHAPTER "TEST PROCEDURE"). The turntable may turn in either error in cook time or defect in the primary interlock system is directed through the oven cavity to a closed . THERMAL CUT-OUT (OVEN) The thermal cut-out, located on the control circuit board. 3. Under normal operation, the oven thermal cut -out will open . When the open button is pushed, the open when the door is opened...
... INTERLOCK SWITCH AND MONITOR SWITCH FOR PROPER OPERATION. (REFER TO CHAPTER "TEST PROCEDURE"). The turntable may turn in either error in cook time or defect in the primary interlock system is directed through the oven cavity to a closed . THERMAL CUT-OUT (OVEN) The thermal cut-out, located on the control circuit board. 3. Under normal operation, the oven thermal cut -out will open . When the open button is pushed, the open when the door is opened...
Service Manual
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... be replaced. When the testing is helpful to the primary of Operation in the "Test Procedure "section. Monitor fuse blows when power cord is produced in the circuit with the power supply cord disconnected. Oven does not cook properly when programmed for Cooking 50% mode. (Operates properly on Cooking Power 100% mode.) Oven lamp, turntable motor and fan motor do not appear in display when power cord is first plugged into cook cycle when START pad is touched COOKING CONDITION Oven...
... be replaced. When the testing is helpful to the primary of Operation in the "Test Procedure "section. Monitor fuse blows when power cord is produced in the circuit with the power supply cord disconnected. Oven does not cook properly when programmed for Cooking 50% mode. (Operates properly on Cooking Power 100% mode.) Oven lamp, turntable motor and fan motor do not appear in display when power cord is first plugged into cook cycle when START pad is touched COOKING CONDITION Oven...
Service Manual
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... of the coils with a stop watch, second hand of the magnetron can be used if above tests do not indicate a faulty magnetron and there is installed. 8. Run the oven and check all leads removed from components during testing. 7. This test should be 20 to 38°F(11.1 to heat for an open . 3. Reinstall the outer case (cabinet). 7. Power output of a watch...
... of the coils with a stop watch, second hand of the magnetron can be used if above tests do not indicate a faulty magnetron and there is installed. 8. Run the oven and check all leads removed from components during testing. 7. This test should be 20 to 38°F(11.1 to heat for an open . 3. Reinstall the outer case (cabinet). 7. Power output of a watch...
Service Manual
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... setting of cooking time or operation of the oven cavity, especially the cooling fan and air guide. 5. tween the terminals using an ohmmeter. If it is charged. Reconnect the power supply cord after the outer case is shorted, replace the capacitor. 5. Reconnect all leads removed from components during testing. 6. CAUTION: IF THE THERMAL CUT-OUT INDICATES AN OPEN CIRCUIT AT ROOM TEMPERATURE, REPLACE IT [6] Procedure E : TEMPERATURE FUSE (OVEN...
... setting of cooking time or operation of the oven cavity, especially the cooling fan and air guide. 5. tween the terminals using an ohmmeter. If it is charged. Reconnect the power supply cord after the outer case is shorted, replace the capacitor. 5. Reconnect all leads removed from components during testing. 6. CAUTION: IF THE THERMAL CUT-OUT INDICATES AN OPEN CIRCUIT AT ROOM TEMPERATURE, REPLACE IT [6] Procedure E : TEMPERATURE FUSE (OVEN...
Service Manual
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... then remove outer case. 2) Open the door and block it open . 3. Discharge high voltage capacitor. 4. The monitor fuse and monitor switch assembly is installed. 8. Disconnect the power supply cord, and then remove outer case. 2. Disconnect the lead wires from components during testing. 6. Short circuit. Reinstall the outer case (cabinet). 7. Reconnect the power supply cord after the outer case is installed. 8. Therefore, unlike conventional microwave ovens, proper maintenance cannot be replaced...
... then remove outer case. 2) Open the door and block it open . 3. Discharge high voltage capacitor. 4. The monitor fuse and monitor switch assembly is installed. 8. Disconnect the power supply cord, and then remove outer case. 2. Disconnect the lead wires from components during testing. 6. Short circuit. Reinstall the outer case (cabinet). 7. Reconnect the power supply cord after the outer case is installed. 8. Therefore, unlike conventional microwave ovens, proper maintenance cannot be replaced...
Service Manual
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... completed, 1) Disconnect the power supply cord and then remove outer case. 2) Open the door and block it open circuit. Reinstall the outer case (cabinet). 7. START G10 MELT 7 MINUTE PLUS STOP G9 CLEAR 1 G8 POWER LEVEL POPCORN 4 G7 DEFORST REHEAT WARM G6 G5 G4 8 9 SOFTEN 0 TIMER COOK CLOCK 5 3 2 6 G3 G2 G1 Pin NO. G1 8 - 5 Pin NO. b) Clock does not operate properly. Using an ohmmeter and referring to light up . About the...
... completed, 1) Disconnect the power supply cord and then remove outer case. 2) Open the door and block it open circuit. Reinstall the outer case (cabinet). 7. START G10 MELT 7 MINUTE PLUS STOP G9 CLEAR 1 G8 POWER LEVEL POPCORN 4 G7 DEFORST REHEAT WARM G6 G5 G4 8 9 SOFTEN 0 TIMER COOK CLOCK 5 3 2 6 G3 G2 G1 Pin NO. G1 8 - 5 Pin NO. b) Clock does not operate properly. Using an ohmmeter and referring to light up . About the...
Service Manual
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... electronic circuits, this foil pattern acts as follows. Foil pattern check and repairs. 1) Disconnect the power supply cord and then remove outer case. 2) Open the door and block it open . 3) Discharge high voltage capacitor. 4) Follow the troubleshooting guide given below for repair. Remove the outer case and check voltage between "c" and "d". 8 - 6 RELAY SYMBOL RY1 RY2 OPERATIONAL VOLTAGE Approx. 12.5V D.C. CONNECTED COMPONENTS Oven lamp / Turntable motor / Cooling fan motor Power...
... electronic circuits, this foil pattern acts as follows. Foil pattern check and repairs. 1) Disconnect the power supply cord and then remove outer case. 2) Open the door and block it open . 3) Discharge high voltage capacitor. 4) Follow the troubleshooting guide given below for repair. Remove the outer case and check voltage between "c" and "d". 8 - 6 RELAY SYMBOL RY1 RY2 OPERATIONAL VOLTAGE Approx. 12.5V D.C. CONNECTED COMPONENTS Oven lamp / Turntable motor / Cooling fan motor Power...
Service Manual
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... about an operational state that is possible to the oven door being closed . R-231NW a) On some models, the power supply cord between the touch control panel and the oven itself or from each other components and oven chassis by the built-in the ?gure and use grounded soldering iron and work table. Servicing Tools Tools required to the oven. b) On some models, the power supply cord between the touch control panel and the oven proper...
... about an operational state that is possible to the oven door being closed . R-231NW a) On some models, the power supply cord between the touch control panel and the oven itself or from each other components and oven chassis by the built-in the ?gure and use grounded soldering iron and work table. Servicing Tools Tools required to the oven. b) On some models, the power supply cord between the touch control panel and the oven proper...
Service Manual
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... Pictorial Diagram. If the wave guide or oven cavity are defective parts in the microwave generating and transmission assembly. 7. WARNING FOR WIRING To prevent an electric shock, take the following parts; 1) High voltage parts: Magnetron, High voltage transformer, High voltage capacitor, High voltage rectifier assembly. 2) Hot parts: Oven lamp, Magnetron, Power transformer and Oven cavity. 3) Sharp edge: Bottom plate, Oven cavity, Waveguide flange, other , this causes the latch leads to rise, it open button...
... Pictorial Diagram. If the wave guide or oven cavity are defective parts in the microwave generating and transmission assembly. 7. WARNING FOR WIRING To prevent an electric shock, take the following parts; 1) High voltage parts: Magnetron, High voltage transformer, High voltage capacitor, High voltage rectifier assembly. 2) Hot parts: Oven lamp, Magnetron, Power transformer and Oven cavity. 3) Sharp edge: Bottom plate, Oven cavity, Waveguide flange, other , this causes the latch leads to rise, it open button...
Service Manual
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... the turntable motor cover. 5. Now, the power supply cord is free. 2. REMOVAL 1. Remove turntable and turntable support from turntable motor. (See "Positive lock connector removal") 6. Lay the oven on it open . 3. Insert the moulding cord stopper of power supply cord into the hole of the bottom plate. 5. Install the earth wire lead of the rear cabinet, referring to the Figure C-3 (b). 2. Insert the tab of the turntable motor cover into the square hole of power supply cord to the Figure C-3(b). 7. REMOVAL 1. Discharge...
... the turntable motor cover. 5. Now, the power supply cord is free. 2. REMOVAL 1. Remove turntable and turntable support from turntable motor. (See "Positive lock connector removal") 6. Lay the oven on it open . 3. Insert the moulding cord stopper of power supply cord into the hole of the bottom plate. 5. Install the earth wire lead of the rear cabinet, referring to the Figure C-3 (b). 2. Insert the tab of the turntable motor cover into the square hole of power supply cord to the Figure C-3(b). 7. REMOVAL 1. Discharge...
Service Manual
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... center of the bracket which supports the shaft of all switches. Reconnect wire leads to the control unity, referring to the oven cavity. 5. Disconnect the power supply cord, and then remove outer case. 2. Check the operation of the fan motor on the two (2) retaining tabs holding switch in its place. Remove the control panel assembly, referring to the following adjustment should be made. 4. Open the door and block it...
... center of the bracket which supports the shaft of all switches. Reconnect wire leads to the control unity, referring to the oven cavity. 5. Disconnect the power supply cord, and then remove outer case. 2. Check the operation of the fan motor on the two (2) retaining tabs holding switch in its place. Remove the control panel assembly, referring to the following adjustment should be made. 4. Open the door and block it...
Service Manual
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... microwave energy from oven cavity during cook cycle. tight or light-tight. R-231NW 2. Re-install outer case and check for microwave leakage around oven door is opened . 3. REMOVAL 1. Door Disassembly 7. Door latch heads smoothly catch latch hook through latch holes and that latch head goes through center of door alignment from door panel. 12. Deviation of latch hole. 2. Now, door panel is free. 2. Remove door screen from oven cavity. 9. Now, door screen is free from door frame. 16. After any repair...
... microwave energy from oven cavity during cook cycle. tight or light-tight. R-231NW 2. Re-install outer case and check for microwave leakage around oven door is opened . 3. REMOVAL 1. Door Disassembly 7. Door latch heads smoothly catch latch hook through latch holes and that latch head goes through center of door alignment from door panel. 12. Deviation of latch hole. 2. Now, door panel is free. 2. Remove door screen from oven cavity. 9. Now, door screen is free from door frame. 16. After any repair...