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Sharp AX-1100R Service Manual
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Sharp AX-1100R Service Manual

Sharp AX-1100R Service Manual

Steam oven with microwave and grill function
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In interests of user-safety the oven should be restored to its original condition and only parts identical to those specified
should be used.
WARNING TO SERVICE PERSONNEL: Steam ovens contain circuitry capable of producing very high voltage and
current, contact with following parts may result in a severe, possibly fatal, electrical shock. (High Voltage Capacitor,
High Voltage Transformer, Magnetron, High Voltage Rectifier Assembly, High Voltage Harness etc..)
PRECAUTIONS TO BE OBSERVED BEFORE AND DURING SERVICING TO AVOID POSSIBLE EXPOSURE TO EX -
CESSIVE MICROWAVE ENERGY - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2
BEFORE SERVICING - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2
WARNING TO SERVICE PERSONNEL - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3
SERVICE INFORMATION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4
MICROWAVE MEASUREMENT PROCEDURE - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5
WARNING AND DANGER - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6
PRECAUTIONS FOR USING LEAD -FREE SOLDER - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7
PRODUCT SPECIFICATIONS - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 8
GENERAL INFORMATION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 9
OPERATION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3
FUNCTION OF IMPORTANT COMPONENTS - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7
TROUBLESHOOTING GUIDE - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 9
TEST PROCEDURES - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2
ERROR LIST - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 27
TEST MODE - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3
COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 36
WARNING AGAINST HIGH VOLTAGE: - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 36
CIRCUIT DIAGRAMS - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 47
SERVICE MANUAL
STEAM OVEN WITH MICROWAVE
AND GRILL FUNCTION
MODELS
CONTENTS
This document has been published to be used for after sales service only.

The contents are subject to change without notice.
S0AXPSR/T3
AX-1100R
AX-1100S
AX-1100R/S

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Summary of Contents for Sharp AX-1100R

  • Page 1: Table Of Contents

    SERVICE MANUAL AX-1100R/S S0AXPSR/T3 STEAM OVEN WITH MICROWAVE AND GRILL FUNCTION AX-1100R MODELS AX-1100S In interests of user-safety the oven should be restored to its original condition and only parts identical to those specified should be used. WARNING TO SERVICE PERSONNEL: Steam ovens contain circuitry capable of producing very high voltage and current, contact with following parts may result in a severe, possibly fatal, electrical shock.

  • Page 2: Precautions To Be Observed Before And During Servicing To Avoid Possible Exposure To Excessive Microwave Energy

    Before servicing an operative unit, perform a microwave emission check as per the Microwave Measurement Procedure outlined in this service manual. If microwave emissions level is in excess of the specified limit, contact SHARP ELECTRONICS CORPORATION immediately @ -800 -237 -4277.

  • Page 3: Warning To Service Personnel

    AX-1100R/S WARNING TO SERVICE PERSONNEL Steam ovens contain circuitry capable of producing very high voltage and current, contact with following parts may result in a severe, pos - sibly fatal, electrical shock. (Example) High Voltage Capacitor, High Voltage Transformer, Magnetron, High Voltage Rectifier Assembly, High Voltage Harness etc..

  • Page 4: Service Information

    AX-1100R/S SERVICE INFORMATION Remedy in the event that Microwave energy is not produced when the power supply cord is disconnected during Steam cooking or Grill cooking. Carry out Steam cooking first and then carry out the microwave cooking check as follows;...

  • Page 5: Microwave Measurement Procedure

    AX-1100R/S MICROWAVE MEASUREMENT PROCEDURE 1. Requirements: . Microwave leakage limit (Power density limit): The power density of microwave radiation emitted by a microwave oven should not exceed mW/cm at any point 5cm or more from the external surface of the oven, measured prior to acquisition by a purchaser, and thereafter (through the useful life of the oven), 5 mW/cm at any point 5cm or more from the external surface of the oven.

  • Page 6: Warning And Danger

    WARNING AND DANGER FOREWORD This Manual has been prepared to provide Sharp Electronics Corp. Service Personnel with Operation and Service Information for the STEAM OVENS, AX -00S and AX -00R. It is recommended that service personnel carefully study the entire text of this manual so that they will be qualified to render satisfactory customer service.

  • Page 7: Precautions For Using Lead-Free Solder

    AX-1100R/S PRECAUTIONS FOR USING LEAD-FREE SOLDER Employing lead-free solder The "Main PWB" of this model employs lead -free solder. This is indicated by the "LF" symbol printed on the PWB and in the service manu - al. The suffix letter indicates the alloy type of the solder.

  • Page 8: Product Specifications

    AX-1100R/S PRODUCT SPECIFICATIONS SPECIFICATION ITEM DESCRIPTION 20 Volts Power Requirements 60 Hertz Single phase, 3 wire grounded Steam cooking - - - - 50W, Approx. 9.6A Power Consumption Grill cooking - - - - - - - -50W, Approx.9.6A Microwave cooking - - - - 500W, Approx.

  • Page 9: General Information

    AX-1100R/S GENERAL INFORMATION GROUNDING INSTRUCTIONS This oven is equipped with a three prong grounding plug. It must be plugged into a wall receptacle that is properly installed and grounded in accordance with the National Electrical Code and local codes and ordinances.
  • Page 10 AX-1100R/S NOTE: Place the rack on glass tray as shown in Figure 1. Oven glove WARNING: The oven cavity, door, outer cabinet, accessories and dishes will become very hot, use thick dry pot holders Rack when removing the food or accessories from the oven Steam tray to prevent burns.

  • Page 11: Drain Water Function

    AX-1100R/S 2. An insufficient amount of water in the water tank may cause an undesired result. 3. We recommend that you empty the water tank every time after cooking. Do not leave the water tank filled with water in the oven over a day.
  • Page 12 AX-1100R/S When “DESCALE (flashing)” is shown in the display, be sure to carry out Descale function immediately. It takes about 1 hour. (The descal - ing using citric acid or lemon juice is for about 30 minutes, and then rinsing with fresh water is for about 30 minutes.) PROCEDURE .

  • Page 13: Operation

    AX-1100R/S OPERATION Water supply/drainage schematic 1. When installing the water tank ENGINE UNIT ASSEMBLY Water supply tube to the engine as- FEED-WATER TANK sembly PUMP MOTOR DRIP TRAY Inserting the water tank delivers water to the tank joint. 2. When steaming operations Turning the heater ON generates steam.
  • Page 14 AX-1100R/S Remained water in the tube and the engine is not discharged even with the water tank removed. Removing the water tank discharges remained water in the tank joint to the drip tray. 4. When operating the oven in order to discharge remained water (“Drain water” mode). (Remained water in the tank joint, tube (pump motor) and engine unit assembly are discharged.)
  • Page 15 AX-1100R/S Start Grill Microwave Grill Heating element Grill Heating element Engine Heating element Engine Heating element Intake Damper Motor Intake Damper Motor Exhaust Damper Motor Exhaust Damper Motor Fan Motor Tube Pump Motor Fan Motor Antenna Motor Magnetron Antenna Motor...

  • Page 16: Off Condition

    AX-1100R/S *3 Magnetron will do the intermittent driving of 0% power level. *4 From 5 minutes after start of cooking and until  minute before end of cooking, the engine heating element will be turned on and off by temperature (engine).

  • Page 17: Function Of Important Components

    AX-1100R/S FUNCTION OF IMPORTANT COMPONENTS DOOR OPEN MECHANISM 3) If the door is opened, and the primary interlock relay (RY4) and the contacts (COM -NO) secondary interlock switch . The door lever is gripped and the door open handle is pulled.

  • Page 18: Fan Motor *2

    AX-1100R/S THERMAL CUT-OUT 145°C (MG) INTAKE DAMPER MOTOR This thermal cut -out protects the magnetron against overheat. If The air damper position is set automatically by the intake damper the temperature goes up higher than 45°C because the fan mo - motor, intake damper switch, air damper cam and damper shaft.

  • Page 19: Troubleshooting Guide

    AX-1100R/S TROUBLESHOOTING GUIDE FOREWORD When troubleshooting the steam oven, it is helpful to follow the Sequence of Operation in performing the checks. Many of the possible causes of trouble will require that a specific test be performed. These tests are given a procedure letter which will be found in the “Test Procedure”...

  • Page 20: Magnetron

    AX-1100R/S DOOR IS OPENED OR STOP KEY IS PRESSED DURING COOKING.OR SENSOR DOES NOT DETECT VAPOR. TEMPERATURE OF OVEN IS TOO HIGH IN MICROWAVE COOOKING. TEMPERATURE OF ENGINE UNIT IS TOO HIGH. WATER IS FROZEN IN WATER TANK OR TUBE PUMP ASSEMBLY.

  • Page 21: Test Procedures

    AX-1100R/S TEST PROCEDURES A: MAGNETRON TEST NEVER TOUCH ANY PART IN THE CIRCUIT WITH YOUR HAND OR AN INSULATED TOOL WHILE THE OVEN IS IN OPERATION. . Disconnect the power supply cord, and then remove outer case. 2. Open the door and block it open.

  • Page 22: D: High Voltage Capacitor Test

    AX-1100R/S C: HIGH VOLTAGE RECTIFIER TEST . Disconnect the power supply cord, and then remove outer case. 2. Open the door and block it open. 3. Discharge high voltage capacitor. 4. Isolate the high voltage rectifier assembly from the HV circuit. The high voltage rectifier can be tested using an ohmmeter set to its highest range.
  • Page 23 AX-1100R/S 4. Isolate the switch and connect the ohmmeter to the common (COM.) and normally open (NO) terminal of the switch. The meter should indicate an open circuit with the door open and a closed circuit with the door closed. And then connect the ohmmeter to the common (COM.) and normally open (NC) terminal of the switch.
  • Page 24 AX-1100R/S 3. Discharge high voltage capacitor. 4. Disconnect the leads from the terminals of the thermal cut -out. Then using an ohmmeter, make a continuity test across the two terminals as described in the below. Table: Thermal Cut-out Test Temperature of "ON" condition Temperature of "OFF"...

  • Page 25: Measuring Point

    AX-1100R/S 5. Reconnect all leads removed from components during testing. NOISE FILTER 6. Reinstall the outer case (cabinet). NOISE SUPPRESSION COIL 7. Reconnect the power supply cord after the outer case is installed. 8. Run the oven and check all functions.
  • Page 26 AX-1100R/S ) In connection with pads. a) When touching the pads, a certain group of pads do not produce a signal. b) When touching the pads, no pads produce a signal. 2) In connection with indicators a) At a certain digit, all or some segments do not appear.

  • Page 27: Error List

    AX-1100R/S ERROR LIST Check timing from Error Detail of error Error condition Application menu Check method Note heating start display code Defrost “HOT” is blinking in the Oven temperature is high. Oven temperature is too high Steam Low Thermistor (Grill) Immediately display.
  • Page 28 AX-1100R/S Are tubes bended? Are tubes broken? Repair or exchange the tube. Are tubes choked? Are tubes inserted certainly? Is the plumbing of tubes correct? Check the performance of the tube pump assembly. Correct the plumbing. 2) Check of tube pump performance Mesure the weight of the water tank filled with water to MAX mark.(This is initial weight A g.)
  • Page 29 AX-1100R/S Set the water tank, which has been filled with water to the MAX mark, to the set and power ON. (Confirm that there is no water remaining in the oven cavity.) Set the test mode to steam mode test (Press "Info" key).
  • Page 30 AX-1100R/S EE05 Engine high temperature failure Is the connectors between the thermistor (Engine), board and engine mounting section Connect/repair the connector(s) or replace the disconnected or short circuited? thermistor/ harness. Measure the engine thermistor resistance using a tester with the thermistor connector pulled out of the board.

  • Page 31: Test Mode

    AX-1100R/S TEST MODE...
  • Page 32 AX-1100R/S...
  • Page 33 AX-1100R/S...
  • Page 34 AX-1100R/S...
  • Page 35 AX-1100R/S...

  • Page 36: Component Replacement And Adjustment Procedure

    2) Door hinge, support or latch hook is damaged. WARNING FOR WIRING To prevent an electric shock, take the following precautions. 3) Sharp edge: . Before wiring, Bottom plate, Oven cavity, Waveguide flange, Chassis ) Disconnect the power supply cord.

  • Page 37: High Voltage Transformer Removal

    AX-1100R/S of outer case cabinet. 7. Slide the entire case back about 3 cm to free it from retaining clips on the cavity face plate. 8. Lift the entire outer case cabinet from the oven. 9. Discharge the H.V. capacitor before carrying out any further work.

  • Page 38: Fan Motor Replacement

    AX-1100R/S 7. Disconnect the wire leads from the antenna motor. 8. Remove the two (2) screws holding the antenna motor to the TT motor mount angle. 9. Now, the antenna motor is free. REINSTALLATION . Reinstall the antenna motor by locating shaft onto the shaft assembly to the TT mount angle with the two (2) screws.

  • Page 39: Back Plate Removal

    AX-1100R/S 6. Remove the bottom plate cover from the bottom plate. 7. Disconnect the wire leads from the pump motor. 8. Remove the one () screw holding the tube pump assembly to the bottom plate. 9. Release the two (2) tabs of the tube pump assembly from the holes of the bottom plate.
  • Page 40 AX-1100R/S 7. Remove the tank cover support A from the tank cover. 8. Remove the tank joint from the tank cover. CAUTION: WHEN THE JOINT TUBE, TANK JOINT OR PUMP TUBE L IS REMOVED FROM THE ENGINE UNIT OR TANK JOINT, RE - MAINED WATER MAY BLEED FROM THE ENGINE UNIT.

  • Page 41: Humidity Sensor Removal

    AX-1100R/S 3. Discharge high voltage capacitor. 4. Remove the engine unit, referring to “ENGIEN UNIT REMOVAL”. 5. Remove the one () screw holding the thermistor (engine) to the engine unit assembly. 6. Remove the thermistor (engine) from the engine unit.

  • Page 42: Power Supply Cord Replacement

    AX-1100R/S POWER SUPPLY CORD REPLACEMENT REMOVAL . Disconnect the power supply cord, and then remove Power Supply Cord outer case. 2. Open the door and block it open. Screw 3. Discharge high voltage capacitor. Back Plate 4. Remove the one () screw holding the green wire to Green Wire the back plate.
  • Page 43 AX-1100R/S 7. Adjust the upper edge and right edge of the graphic sheet to the large depression on the surface of the control panel frame. 8. Attach the key sheet to the control panel frame by rubbing with a soft cloth not to scratch.

  • Page 44: Door Replacement

    AX-1100R/S upper portion of the door toward the oven face. Then check the lower latch hook position, pushing and pulling lower portion of the door toward the oven face. Both results (play of the door) should be less than 0.5mm.

  • Page 45: Door Cover

    AX-1100R/S 9. Now, the door glass is free. LATCH HEADS U, LATCH HEADS L, SPRING AND DOOR FRAME 5. Remove the two (2) screws holding the latch angle to the door frame. 6. Remove the latch angle with the latch head U, latch head L, latch lever and spring from the door frame.
  • Page 46 AX-1100R/S NOTE: After any service to the door: 1) Make sure that the monitor switch, secondary interlock switch Upper and door sensing switch are operating properly. (Refer to Oven Hinge chapter “Test Procedures”.). 2) An approved microwave survey meter should be used to assure...

  • Page 47: Circuit Diagrams

    AX-1100R/S CIRCUIT DIAGRAMS Oven Schematic EXHAUST DAMPER MG THERMAL MONITORED CUT-OUT SWITCH MONITOR FUSE F20A T/C TRANSFORMER FUSE VRS1 RY4: PRIMARY INTERLOCK RELAY POWER SAVING RELAY HUMIDITY SENSOR SECONDARY ENGINE OVEN N.C. INTERLOCK NOISE FILTER THERMAL THERMAL SWITCH CUT-OUT CUT-OUT...

  • Page 48: Antenna Motor *3

    AX-1100R/S Back plate Power Supply Cord Screw Green Wire Connect the wire leads which has the black case to the terminal " L " of the noise filter MonitorFuse Noise Filter Chassis support Magnetron thermal cut-out Fan motor Grill heating element...
  • Page 49 AX-1100R/S Humidity sensor harness Exhaust damper switch NC terminal : BLU Engine unit assembly (Engine heating element) Exhaust damper switch Exhaust damper motor COM terminal : WHT Connector of thermistor (Grill) Oven thermal cut-out Connector of main wire harness WHT/WHT...
  • Page 50 AX-1100R/S Control Unit Circuit...

  • Page 51: Parts Guide

    AX-1100R/S PartsGuide PARTS GUIDE STEAM OVEN WITH MICROWAVE AND GRILL FUNCTION HOW TO ORDER REPLACEMENT PARTS To have your order filled promptly and correctly, please furnish the following information. AX-1100R 1. MODEL NUMBER MODELS 2. REF. NO. 3. PART NO.

  • Page 52: Oven Parts

    AX1100R [1] OVEN PARTS 9-10 9-28 8-50 8-24 8-36 8-57 9-14 8-22 9-10 8-72 8-71 9-28 8-28 8-51 9-11 8-64 9-28 1-16 8-52 8-67 9-20 9-28 9-28 1-19 9-28 8-54 8-68 8-62 9-27 8-60 8-61 8-59 9-15 9-31 9-31 9-20 8-56 1-15 8-53...
  • Page 53 AX1100R PRICE PART PARTS CODE DESCRIPTION RANK MARK RANK [1] OVEN PARTS ELECTRIC PARTS Noise Filter FPWBFA397WRKZ Power Supply Cord FACCDA109WREZ HV Rectifier Assembly FH-DZA151WRKZ Main Harness FW-VZC327WREZ Engine Unit Assembly (Engine heating element) CHET-A036WRKZ Thermistor (Engine) FH-HZA100WREZ Engine thermal cut-out (SH Thermostat) RTHM-A144WRZZ Secondary interlock switch QSW-MA146WRZZ...
  • Page 54 AX1100R PRICE PART PARTS CODE DESCRIPTION RANK MARK RANK [1] OVEN PARTS 8-31 Lower Hinge MHNG-A651WRMZ 8-32 Tube MJNTPA018WRPZ 8-33 Tank Cover Cushion PCUS-A276WREZ 8-34 Pin Band 14.5-3 LBND-A029WREZ 8-35 Joint Tube PTUBXA074WREZ 8-36 TCAUAA398WRRZ DHHS caution label 8-37 Fan Duct PDUC-B203WRPZ 8-38 Thermal Insulation U...
  • Page 55 AX1100R [2] DOOR AND CONTROL PANEL PARTS...

  • Page 56: Control Panel Parts

    AX1100R PRICE PART PARTS CODE DESCRIPTION RANK MARK RANK [2] DOOR AND CONTROL PANEL PARTS CONTROL PANEL PARTS Control Unit DPWB-A990DRKZ Control Panel Assembly FPNLCC100WRKZ 5-2-1 Key Sheet (Key Top Film) PSHEPB556WREZ 5-2-2 Membrane switch (FPC) QSW-KA104DRZZ Screw: 3mm x 10mm XEPS730P10X00 Menu Label TLABMB385WRRZ...
  • Page 57 AX1100R [3] ACCESSORY PARTS AND PACKING 90-11 Drip tray 90-9 90-12 90-6 90-8 90-14 90-7 90-16 90-2 90-15 90-1 90-7 90-4 90-1 90-10 90-13 90-17 90-3 90-5 PRICE PART PARTS CODE DESCRIPTION RANK MARK RANK [3] ACCESSORY PARTS AND PACKING 90-1 Steam Tray PSRA-A076WRWZ...
  • Page 58 AX1100R INDEX PRICE PART PARTS CODE RANK MARK RANK PRICE PART MSPRTA084WRE0 1-8-60 PARTS CODE RANK MARK RANK MSPRTA271WREZ 2-6-10 [ C ] [ N ] CHET-A036WRKZ 1-1-5 NFANJA038WRE0 1-8-14 CPADBA445WRKZ 3-90-3 NSFT-A007WREZ 1-8-8 [ D ] [ P ] DDORFB468WRYZ 2-6-1 PCOVPA539WRFZ...
  • Page 59 AX1100R PRICE PART PARTS CODE RANK MARK RANK SPAKCF130WRRZ 3-90-13 SPAKCF132WRRZ 3-90-13 SPAKHA011WRE0 3-90-14 SSAKHA101WREZ 3-90-5 SSAKHA114WREZ 3-90-16 [ T ] TCAUAA325WRRZ 1-8-51 TCAUAA398WRRZ 1-8-36 TCAUAA399WRRZ 1-8-27 TCAUHA417WRZZ 3-90-6 TINSEB302WRRZ 3-90-8 TINSJA373WRRZ 3-90-15 TINSMA036WRRZ 3-90-7 TLABMB385WRRZ 2-5-4 [ U ] UAMI-A172WRMZ 3-90-9 [ X ]...

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