R-1405 R-1406 SERVICE MANUAL S92M198R1405E OVER THE RANGE MICROWAVE OVEN MODELS R-1405 R-1406 R-1405 In the interest 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: Microwave ovens contain circuitry capable of producing very high voltage and current Contact with the following parts may result in a severe, possibly fatal, electrical shock (High Voltage Capacitor, High Voltage Power Transformer, Magnetron, High Voltage Rectifier Assembly, High Voltage Harness etc ) TABLE OF CONTENTS Page PRECAUTIONS TO BE OBSERVED BEFORE AND DURING SERVICING TO AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY INSIDE FRONT COVER BEFORE SERVICING INSIDE FRONT COVER WARNING TO SERVICE PERSONNEL MICROWAVE MEASUREMENT PROCEDURE .2 FOREWORD AND WARNING PRODUCT SPECIFICATIONS GENERAL INFORMATION OPERATION TROUBLESHOOTING GUIDE 11 TEST PROCEDURE 13 TOUCH CONTROL PANEL ASSEMBLY 22 COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE 26 PICTORIAL DIAGRAM 34 POWER UNIT CIRCUIT 35 LSI UNIT CIRCUIT 36 PRINTED WIRING BOARD 37 PARTS LIST 38 PACKING AND ACCESSORIES 40 This document has been published to be used for after sales service only The contents are subject to change without notice SHARP CORPORATION R-1405 R-1406 PRECAUTIONS TO BE OBSERVED BEFORE AND DURING SERVICING TO AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY (a) Do not operate or allow the oven to be operated with the door open (b) Make the following safety checks on all ovens to be serviced before activating the magnetron or other microwave source, and make repairs as necessary: (1) interlock operation, (2) proper door closing, (3) seal and sealing surfaces (arcing, wear, and other damage), (4) damage to or loosening of hinges and latches, (5) evidence of dropping or abuse (c) Before turning on microwave power for any service test or inspection within the microwave generating compartments, check the magnetron, wave guide or transmission line, and cavity for proper alignment, integrity, and connections (d) Any defective or misadjusted components in the interlock, monitor, door seal, and microwave generation and transmission systems shall be repaired, replaced, or adjusted by procedures described in this manual before the oven is released to the owner (e) A microwave leakage check to verify compliance with the Federal Performance Standard should be performed on each oven prior to release to the owner BEFORE SERVICING 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 @1-800-237-4277 If the unit operates with the door open, service person should 1) tell the user not to operate the oven and 2) contact SHARP ELECTRONICS CORPORATION and Food and Drug Administration's Center for Devices and Radiological Health immediately Service personnel should inform SHARP ELECTRONICS CORPORATION of any certified unit found with emissions in excess of 4mW/cm2 The owner of the unit should be instructed not to use the unit until the oven has been brought into compliance R-1405 R-1406 WARNING TO SERVICE PERSONNEL Microwave ovens contain circuitry capable of producing very high voltage and current, contact with following parts may result in a severe, possibly fatal, electrical shock (Example) High Voltage Capacitor, High Voltage Power Transformer, Magnetron, High Voltage Rectifier Assembly, High Voltage Harness etc Read the Service Manual carefully and follow all instructions Don't Touch ! Danger High Voltage When the testing is completed, Disconnect the power supply cord, and then remove outer case Open the door and block it open Discharge high voltage capacitor Reconnect the leads to the primary of the power transformer Reinstall the outer case (cabinet) Reconnect the power supply cord after the outer case is installed Run the oven and check all functions Before Servicing Disconnect the power supply cord remove outer case Open the door and block it open Discharge high voltage capacitor , and then WARNING:RISK OF ELECTRIC SHOCK DISCHARGE THE HIGH-VOLTAGE CAPACITOR BEFORE SERVICING The high-voltage capacitor remains charged about 60 seconds after the oven has been switched off Wait for 60 seconds and then short-circuit the connection of the highvoltage capacitor (that is the connecting lead of the highvoltage rectifier) against the chassis with the use of an insulated screwdriver After repairing Reconnect all leads removed from components during testing Reinstall the outer case (cabinet) Reconnect the power supply cord after the outer case is installed Run the oven and check all functions Whenever troubleshooting is performed the power supply must be disconnected It may, in some cases, be necessary to connect the power supply after the outer case has been removed, in this event, Disconnect the power supply cord, and then remove outer case Open the door and block it open Discharge high voltage capacitor Disconnect the leads to the primary of the power transformer Ensure that these leads remain isolated from other components and oven chassis by using insulation tape After that procedure, reconnect the power supply cord Microwave ovens should not be run empty To test for the presence of microwave energy within a cavity, place a cup of cold water on the oven turntable, close the door and set the power to HIGH and set the microwave timer for two (2) minutes When the two minutes has elapsed (timer at zero) carefully check that the water is now hot If the water remains cold carry out Before Servicing procedure and reexamine the connections to the component being tested When all service work is completed and the oven is fully assembled, the microwave power output should be checked and microwave leakage test should be carried out R-1405 R-1406 MICROWAVE MEASUREMENT PROCEDURE A Requirements: 1) Microwave leakage limit (Power density limit): The power density of microwave radiation emitted by a microwave oven should not exceed 1mW/cm2 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), mW/cm2 at any point 5cm or more from the external surface of the oven 2) Safety interlock switches: Primary interlock switch shall prevent microwave radiation emission in excess of the requirement as above mentioned, secondary interlock relay and door sensing switch shall prevent microwave radiation emission in excess of mW/cm2 at any point 5cm or more from the external surface of the oven B Preparation for testing: Before beginning the actual measurement of leakage, proceed as follows: 1) Make sure that the actual instrument is operating normally as specified in its instruction booklet Important: Survey instruments that comply with the requirement for instrumentation as prescribed by the performance standard for microwave ovens, 21 CFR 1030.10(c)(3)(i), must be used for testing 2) Place the oven tray in the oven cavity 3) Place the load of 275±15 ml (9.8 oz) of tap water initially at 20±5½C (68½F) in the center of the oven cavity The water container shall be a low form of 600 ml (20 oz) beaker with an inside diameter of approx 8.5 cm (3-1/2 in.) and made of an electrically nonconductive material such as glass or plastic The placing of this standard load in the oven is important not only to protect the oven, but also to insure that any leakage is measured accurately 4) Set the cooking control on Full Power Cooking Mode 5) Close the door and select a cook cycle of several minutes If the water begins to boil before the survey is completed, replace it with 275 ml of cool water C Leakage test: Closed-door leakage test (microwave measurement) 1) Grasp the probe of the survey instrument and hold it perpendicular to the gap between the door and the body of the oven 2) Move the probe slowly, not faster than in./sec (2.5 cm/sec.) along the gap, watching for the maximum indication on the meter 3) Check for leakage at the door screen, sheet metal seams and other accessible positions where the continuity of the metal has been breached (eg., around the switches, indicator, and vents) While testing for leakage around the door pull the door away from the front of the oven as far as is permitted by the closed latch assembly 4) Measure carefully at the point of highest leakage and make sure that the highest leakage is no greater than 4mW/cm2, and that the primary interlock switch does turn the oven OFF before any door movement NOTE: After servicing, record data on service invoice and microwave leakage report R-1405 R-1406 SERVICE MANUAL PRODUCT DESCRIPTION OVER THE RANGE MICROWAVE OVEN R-1405/ R-1406 GENERAL INFORMATION FOREWORD This Manual has been prepared to provide Sharp Electronics Corp Service Personnel with Operation and Service Information for the SHARP OVER THE RANGE MICROWAVE OVEN, R-1405 and R1406 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 Check the interlock switches and the door seal carefully Special attention should be given to avoid electrical shock and microwave radiation hazard WARNING Never operate the oven until the following points are ensured (A) The door is tightly closed (B) The door brackets and hinges are not defective (C) The door packing is not damaged (D) The door is not deformed or warped (E) There is not any other visible damage with the oven Servicing and repair work must be carried out only by trained service personnel DANGER Certain initial parts are intentionally not grounded and present a risk of electrical shock only during servicing Service personnel - Do not contact the following parts while the appliance is energized; High Voltage Capacitor, Power Transformer, Magnetron, High Voltage Rectifier Assembly, High Voltage Harness; If provided, Vent Hood, Fan assembly, Cooling Fan Motor All the parts marked “*” on parts list are used at voltages more than 250V Removal of the outer wrap gives access to voltage above 250V All the parts marked “Д on parts list may cause undue microwave exposure, by themselves, or when they are damaged, loosened or removed SHARP ELECTRONICS CORPORATION SHARP PLAZA, MAHWAH, NEW JERSEY 07430-2135 OPERATION TROUBLESHOOTING GUIDE AND TEST PROCEDURE TOUCH CONTROL PANEL COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE WIRING DIAGRAM PARTS LIST R-1405 R-1406 PRODUCT SPECIFICATION ITEM DESCRIPTION Power Requirements 120 Volts / 13.5 Amperes 60 Hertz Single phase, wire grounded Power Output 950 watts (IEC TEST PROCEDURE) Operating frequency of 2450MHz Case Dimensions Width 29-15/16" Height 15- 9/16" Depth 16-1/4" Cooking Cavity Dimensions Width 17-1/2" Height 14-15/16" Depth 9-7/8" 1.5 Cubic Feet Hood lamp bulbs, 20W x 2, Incandescent light bulbs Hood fan Approx 300 C.F.M Control Complement Touch Control System Clock ( 1:00 - 12:59 ) Timer (0 - 99 99 seconds) Microwave Power for Variable Cooking Repetition Rate; P-HI Full power throughout the cooking time P-90 approx 90% of Full Power P-80 approx 80% of Full Power P-70 approx 70% of Full Power P-60 approx 60% of Full Power P-50 approx 50% of Full Power P-40 approx 40% of Full Power P-30 approx 30% of Full Power P-20 approx 20% of Full Power P-10 approx 10% of Full Power P-0 No power throughout the cooking time KEEP WARM pad, POPCORN pad, HOT WATER pad REHEAT CENTER pads, COOK CENTER pads DEFROST CENTER pads, Number selection pads POWER LEVEL pad, TIMER / CLOCK pad LIGHT button, FAN button, STOP/CLEAR button, START/ MINUTE PLUS button, Oven Cavity Light 20W x Incandescent light bulb Safety Standard UL Listed FCC Authorized DHHS Rules, CFR, Title 21, Chapter 1, Subchapter J Weight Approx 55 lbs 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 In the event of an electrical short circuit, grounding reduces the risk of electric shock by providing an escape wire for the electric current WARNING: Improper use of the grounding plug can result in a risk of electric shock R-1405 R-1406 Electrical Requirements The oven is equipped with a 3-prong grounding plug DO NOT UNDER ANY CIRCUMSTANCES CUT OR REMOVE THE GROUNDING PIN FROM THE PLUG The power supply cord and plug must be connected to a separate 120 Volt AC, 60 Hz, 15 Amp or more dedicated line, using a grounded receptacle The receptacle should be located inside the cabinet directly above the Microwave Oven/Hood system mounting location 3-Pronged Plug Grounded Receptacle Box Grounding Pin 3-Pronged Receptacle OVEN DIAGRAM 10 10 15 10 12 13 11 14 Oven door with see-through window Door hinges Waveguide cover Turntable motor shaft Oven lamp It will light when oven is operating or door is open Door latches The oven will not operate unless the door is securely closed One touch door open button Auto Touch control panel Time display: Digital display, 99 minutes 99 seconds 10.Ventilation openings 11.Light Cover 12.Grease filters 13.Removable turntable The turntable will rotate clockwise or counterclockwise Only remove for cleaning 14.Removable turntable support 15 Power supply cord R-1405 R-1406 CONTROL PANEL NOTE: Some one-touch cooking features such as "MINUTE PLUS" are disabled after three minutes when the oven is not used These features are automatically enabled when the door is opened and closed or STOP/CLEAR button is pressed R-1405 R-1406 OPERATION DESCRIPTION OF OPERATING SEQUENCE The following is a description of component functions during oven operation relay (RY2) and is mechanically associated with the door so that it will function in the following sequence (1) When the door opens from a closed position, the secondary interlock relay (RY2) and primary interlock switch open their contacts And contacts of the relay (RY1) remains closed Then the monitor switch contacts close (2) When the door is closed from the open position, the monitor switch contacts first open, and then the contacts of the primary interlock switch and door sensing switch close And contacts of the relay (RY1) open If the primary interlock switch and secondary interlock relay (RY2) fail with their contacts closed when the door is opened, the closing of the monitor switch contacts will form a short circuit through the monitor fuse, primary interlock switch, relay (RY1) and secondary interlock relay (RY2), causing the monitor fuse to blow OFF CONDITION Closing the door activates the door sensing switch and primary interlock switch (In this condition, the monitor switch contacts are opened.) When oven is plugged in, 120 volts A.C is supplied to the control unit (Figure O-1) The display will show flashing "88 : 88" To set any program or set the clock, you must first touch the STOP/CLEAR button The display will clear, and " : " will appear COOKING CONDITION Program desired cooking time touching the NUMBER pads When the START button is touched, the following operations occur: POWER LEVEL P-0 TO P-90 COOKING The contacts of relays are closed and components connected to the relays are turned on as follows (For details, refer to Figure O-2) RELAY RY1 RY2 RY3, RY4 RY5, RY6 When Variable Cooking Power is programmed, the 120 volts A.C is supplied to the power transformer intermittently through the contacts of relay (RY2) which is operated by the control unit within an interval second time base Microwave power operation is as follows: CONNECTED COMPONENTS Oven lamp / Fan motor / Turntable motor Power transformer Hood fan motor Hood lamp VARI-MODE ON TIME Power 10(P-HI) 32 sec (100% power) Power 9(P-90) 30 sec (approx 90% power) Power 8(P-80) 26 sec (approx 80% power) Power 7(P-70) 24 sec (approx 70% power) Power 6(P-60) 22 sec (approx 60% power) Power 5(P-50) 18 sec (approx 50% power) Power 4(P-40) 16 sec (approx 40% power) Power 3(P-30) 12 sec (approx 30% power) Power 2(P-20) sec (approx 20% power) Power 1(P-10) sec (approx 10% power) Power 0(P-0) sec (0% power) 120 volts A.C is supplied to the primary winding of the power transformer and is converted to about 3.3 volts A.C output on the filament winding, and approximately 2000 volts A.C on the high voltage winding The filament winding voltage heats the magnetron filament and the H.V winding voltage is sent to a voltage doubler circuit The microwave energy produced by the magnetron is channelled through the waveguide into the cavity feedbox, and then into the cavity where the food is placed to be cooked Upon completion of the cooking time, the power transformer, oven lamp, etc are turned off, and the generation of microwave energy is stopped The oven will revert to the OFF condition When the door is opened during a cook cycle, monitor switch, door sensing switch, primary interlock switch, relay (RY1) and secondary interlock relay (RY2) are activated with the following results The circuits to the cooling fan motor, the turntable motor, and the high voltage components are de-energized, the oven lamp remains on, and the digital read-out displays the time still remaining in the cook cycle when the door was opened The monitor switch is electrically monitoring the operation of the primary interlock switch and secondary interlock OFF TIME sec sec sec sec 10 sec 14 sec 16 sec 20 sec 24 sec 26 sec 32 sec Note: The ON/OFF time ratio does not correspond with the percentage of microwave power, because approx seconds are needed for heating of the magnetron filament R-1405 R-1406 VENTILATION METHODS HOT AIR EXHAUST VERTICAL VENTING For this venting method, hot air rising from the conventional range below is drawn in by the hood fan motor through the grease filters at the right and left sides of the base cover, up through the right and left sides of the oven cavity, then discharged vertically at rear center top of the oven, into the customer's vent system To Duct To Duct Hood Fan Motor Hood Intake Duct R Grease Filter HORIZONTAL VENTING The air handing is the same as VERTICAL VENTING except that the final air discharge is directed horizontally out from the top rear of the oven into the customer's vent system Hood Fan Motor To Duct Hood Intake Duct R Grease Filter RE-CIRCULATION (INSIDE VENTING) The air handing is the same as VERTICAL VENTING except that the final air discharge is directed horizontally through the upper front of the oven into the kitchen IN this case, the accessory charcoal filter RK-240 must be provided to filter the air before it leaves the oven Hood Fan Motor Hood Exhaust Louver Charcoal Filter Hood Intake Duct R R-1405 R-1406 After adjustment, check the following In and out play of door remains less than 0.5mm when in the latched position First check upper position of latch hook, pushing and pulling upper portion of door toward the oven face Then check lower portion of the latch hook, pushing and pulling lower portion of the door toward the oven face Both results (play in the door) should be less than 0.5mm The door sensing switch and primary interlock switch interrupt the circuit before the door can be opened Monitor switch contacts close when door is opened Re-install outer case and check for microwave leakage around door with an approved microwave survey meter (Refer to Microwave Measurement Procedure.) Latch heads Latch hook Door sensing switch Door Monitor switch Open lever Primary interlock switch Figure C-1 Latch Switch Adjustments DOOR REPLACEMENT DOOR ASSEMBLY REMOVAL Disconnect the power supply cord Open the door and block it open To discharge the high voltage capacitor, wait for 60 seconds Remove the three (3) screws holding the hood exhaust louver to the oven cavity front face plate Remove the hood exhaust louver from the oven cavity by pushing the right and left tabs of the hood exhaust louver (Refer to the procedure of "HOOD EXHAUST LOUVER REMOVAL".) Insert a putty knife (thickness of about 0.5mm) into the gap A between the door stopper and the choke cover as shown in Figure C-3 to free engaging parts Lift up the door stopper Now, the door stopper is free from the door assembly Lift up the door assembly to release the upper and lower door hinge pins from the upper and lower oven hinges 10.Now, the door assembly is free After any servicing, make sure of the following : Door latch heads smoothly catch latch hook through latch holes and that latch head goes through center of latch hole Deviation of door alignment from horizontal line of cavity face plate is to be less than 1.0mm Door is positioned with its face pressed toward cavity face plate Re-install outer case and check for microwave leakage around door with an approved microwave survey meter (Refer to Microwave Measurement Procedure.) Note: The door on a microwave oven is designed to act as an electronic seal preventing the leakage of microwave energy from oven cavity during cook cycle This function does not require that door be air-tight, moisture (condensation)-tight or light-tight Therefore, occasional appearance of moisture, light or sensing of gentle warm air movement around oven door is not abnormal and not of themselves indicate a leakage of microwave energy from oven cavity Note: When the individual parts are replaced, refer to "Door Disassembly" DOOR ASSEMBLY RE-INSTALL On re-installing door, insert the lower oven hinge to lower door hinge pin Insert the upper oven hinge to the upper door hinge pin Shut the door (close the contacts of interlock switches) Make sure upper and lower oven hinges are inserted into the upper an lower door hinge pins Make sure the door is parallel with oven face lines (left and upper side lines) and door latch heads pass through latch holes correctly Re-install the door stopper to the door assembly Re-install the hood exhaust louver to the oven cavity front face plate with the three (3) screws Note: After any service to the door; (A) Make sure that door sensing switch and primary interlock switch are operating properly (Refer to chapter "Test Procedures".) (B) An approved microwave survey meter should be used to assure compliance with proper microwave radiation emission limitation standards Screw Upper door hinge pin RE-INSTALL Left tab Hood exhaust louver Screw Upper oven hinge Right tab Screw Door assembly Latch heads Lower oven hinge Door stopper Lower door hinge pin RE-INSTALL Figure C-2 Door Replacement and adjustment 32 R-1405 R-1406 DOOR DISASSEMBLY Disconnect the power supply cord Open the door and block it open To discharge the high voltage capacitor, wait for 60 seconds Remove the three (3) screws holding the hood exhaust louver to the oven cavity front face plate Remove the hood exhaust louver from the oven cavity by pushing the right and left tabs of the hood exhaust louver (Refer to the procedure of "HOOD EXHAUST LOUVER REMOVAL".) Remove door assembly, referring to "DOOR REPLACEMENT" Replacement of door components are as follows: Place door assembly on a soft cloth with latches facing up Note: As the engaging part of choke cover and door frame are provided at 15 places, not force any particular part DOOR FRAME ASSEMBLY 11.Remove two (2) screws holding the door panel to the door frame assembly 12.Release the door panel from the door frame assembly NOTE: It is easier to release the engaging parts of the upper or lower door hinge pin side at first 13.Now, door frame assembly is free LATCH SPRING, LATCH HEAD AND DOOR PANEL 14.Release the latch spring from the tab of the latch head and tab of the door frame 15.Release the latch head from the door frame 16.Now, the latch spring and latch head are free A Door stopper Choke cover CHOKE COVER Insert a putty knife (thickness of about 0.5mm) into the gap A between the choke cover and door stopper and between the choke cover and the door frame as shown Figure C-3 to free engaging parts Pry the choke cover by inserting a putty knife in order shown in Figure C-3 10.Now choke cover is free from door panel and door frame NOTE: When carrying out any repair to the door, not bend or warp the slit choke (tabs on the door panel assembly) to prevent microwave leakage Putty knife Door frame Figure C-3 Door Disassembly 33 GRY WHT R E D RED ORG COM T1 CN-E C100 CN-B 34 CN-A RY2: SECONDARY INTERLOCK RELAY RY2: N.O N.O COM CN-C CN-B F N.O COM WHT BRN PPL ORG GRN BRN WHT HOOD LAMP & SOCKET BRN WHT Blue Marking WHT WHT RED BRN BLK FAN MOTOR RED WHT MAGNETRON TEMPERATURE FUSE RED POWER TRANSFORMER MAGNETRON HIGH VOLTAGE RECTIFIER HIGH VOLTAGE CAPACITOR HIGH VOLTAGE WIRE A HIGH VOLTAGE COMPONENTS OVEN LAMP & SOCKET GRY ORG RED CAVITY THERMAL CUT-OUT Blue Marking RED Power Supply cord 120V 60Hz Figure S-1 Pictorial Diagram HOOD LAMP & SOCKET WHT BRN WHT to Base Plate Right GRN GRN HOOD FAN THERMAL CUT-OUT BLK BLK TURNTABLE MOTOR RED HOOD FAN MOTOR WHT BLU GRN GRN BLK GRY WHT WHT WHT RED BLK BLU BLK WHT A COM MONITOR SWITCH N.C RED FUSE & HOLDER BLU BLK YLW YLW 3 PRIMARY INTERLOCK SWITCH BRN BLK PPL YLW CN-A RED BLK ORG D BLK WHT RY1 14 CN-C DOOR SENSING SWITCH GRN C CN-G GRN RED COM RED RED B GRY G CONTROL UNIT CN-E RED E RY4 RY5 N.O R-1405 R-1406 A B C H D E F G H R-1405 R-1406 A A B B D1-D4 1N4002 D4 D2 (J1) C D1 + – C2 1000µ/35v D3 d a JVR-10S471J VRS1 C1 0.1µ/50v T1 R1 390 2w R2 750 1w b – c D21 1SS270A OVEN LAMP TURNTABLE MOTOR FAN MOTOR COM SP1 PKM22EPT COM MICRO B3 HOOD MOTOR COM A5 B1 RY5 CN-B C100 7µ/230v A3 MOTOR RUN CAPACITOR A1 D40 1SS270A CN-A DOOR SENSING SWITCH NOTE : IF NOT SPECIFIED, 1/4W ± 5% G E1 HOOD LAMP VA C5 INT C12 OVEN LAMP TURNTABLE MOTOR FAN MOTOR C4 BUZZER C11 MICRO C10 N.C C9 HOOD MOTOR COM C2 VR C8 HOOD LAMP C6 N.C C13 Q22 C14 DOOR SENSING SWITCH C D20 1SS270A E2 F C3 RY4 D25 1SS270A E D24 1SS270A RY2 HOOD THERMAL CUT-OUT VC + Q21 KRC243M RY1 N.O AC(H) C7 C21 10µ/35v D22 1SS270A D N.O GND R30 3.3k AC(N) C1 CN-E D E F CN-C 14pin WIRE HARNESS G H H Figure S-2 Power Unit Circuit 35 R-1405 R-1406 R13 4.7k R14 4.7k COOK COM0(LCD) COM1(LCD) COM2(LCD) 26 DEFROST COM0 COM1 COM2 NC SEG0 SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 SEG19 SEG20 SEG21 3.6k 4.7k GND R15 4.7k 10k (J16) 4.7k 10k (J14) (J15) (J17) (J12) C12 0.1µ/50v R5 4.7k R4 82 C11 0.1µ/50v C10 47µ/16v 4.7k C4 (J13) BUZZER (J10) C6 4.7k N.C (J11) C3 C14 0.01µ /25v VA R11 15k C8 UDZ4.3B R10 1k HOOD LAMP ZD10 C9 C13 0.01µ/25v H MOTOR COM R12 15k C10 Q10 2SA1037AK NO LBS CUPS KGOZ SENSOR AUTO % N.C R6 4.7k Q2 KTA1661 A C2 Q11 DTA143EKA COM0(LCD) COM1(LCD) COM2(LCD) 2 VR B – C7 LIQUID CRYSTAL DISPLAY CPU UNIT + VC C C1 D C5 E F G H INT GND 80 G Q25 DTA143EAK LD1 LD2 LD3 LD4 DOOR SENSING SWITCH C14 R40 4.7k C40 0.01µ/25v 25 G 40 I CF1 CSTS4.00MG03 R41 15k NOTE : R71 15k Q22 DTA143EAK : IF NOT SPECIFIED, 1/16W ± 5% R80 1M C13 R100 4.7k Q22 Q21 DTA143EAK IC1 SEG8 SEG9 SEG10 SEG11 SEG12 SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 SEG19 SEG20 SEG21 R68 15k C11 R69 15k MICRO C20 0.1µ/50v 64 SEG8 SEG9 SEG10 SEG11 SEG12 SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 SEG19 SEG20 SEG21 SEG22 SEG23 SEG24 P11 P12 P13 P14 P15 P16 P17 41 C12 Q30 DTA143EAK R70 15k 36 OVEN LAMP TURNTABLE MOTOR FAN MOTOR 65 VL2 VL1 AN7 AN6 AN5 AN4 AN3 AN2 AN1 AN0 P57 P56 P55 CNTR0 P53 P52 P51 P50 P47 P46 P45 P44 P43 INT0 24 P41 P40 RESET P71 P70 XIN XOUT VSS P27 P26 P25 P24 P23 P22 P21 P20 Q24 DTA143EAK VL2 COM0 COM1 COM2 COM3 AVSS VREF VCC SEG0 SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 I R73 270k R74 270k R75 270k G6 G9 R72 270k G7 REHEAT G12 G11 G10 G8 C63 330p/50v COOK R60 15k G2 G1 POPCORN LIGHT FAN STOP CLEAR TIMER CLOCK START MINUTE PLUS POWER LEVEL G4 R61 15k G3 DEFROST G5 5 C62 330p/50v R62 15k C61 330p/50v R65 15k R66 15k C60 330p/50v KEY UNIT 6 Figure S-3 LSI Unit Circuit A B C D E F G H R-1405 R-1406 A A CN-C 14 D40 D20 B D21 DIP R2 E R CN-E Q1 B ZD1 R3 R30 C SP1 RY1 RM B F V A M SCM B R1 C2 C C21 B C3 C1 D1 D3 D4 D2 VRS1 D Q21 T1 BFB E D J1 P S RY2 E RY5 D25 D26 D22 F F D24 D23 RY4 RY3 RY6 LOT NO G C100 QKITPB035MRE0 E G CN-A CN-B H H Figure S-4 Printed Wiring Board 37 R-1405 R-1406 PARTS LIST ∆” may cause undue microwave exposure Note: The parts marked “∆ The parts marked “*” are used in voltage more than 250V REF NO PART NO § "§" MARK: PARTS DELIVERY SECTION DESCRIPTION Q'TY CODE ELECTRIC PARTS 1- 1- 1- 1- 1- 1- 1- 1- 1- 1-10 1-11 1-12 1-13 1-14 1-15 1-16 FH-DZB016MRY0 RC-QZA234WRE0 QFS-TA013WRE0 RMOTDA211WRE0 RTHM-A070WRE0 RTHM-0044MRE0 RTRN-B076MRE0 RV-MZA288WRE0 QFSHDB003MRE0 QSW-MA085WRE0 FFS-BA016/KIT FACCDB011MRE0 QSOCLB006MRE0 FMOTEA469WRKZ RMOTEB031MRE0 RLMPTA068WRE0 M M M M M M M M M M M M M M M M High voltage rectifier assembly High voltage capacitor Temperature fuse 150½C (Magnetron) Turntable motor Thermal cut-out 145½C (Cavity) Thermal cut-out N.O 60½C (Hood Fan) Power transformer Magnetron Fuse holder Primary interlock and door sensing switches Monitor switch (V-16G-2C25) with fuse (20A) assembly Power supply cord Oven lamp socket Hood fan motor Fan motor Oven lamp 1 1 1 1 1 1 AH AP AE AL AF AH AY BK AD AE AF AQ AE BA AT AE 1 1 1 1 1 1 1 1 AE AQ AQ AG AL AL AZ AZ AB AN AM AG AG AH AV AV 1 1 1 1 1 1 2 1 1 1 1 1 BE AA AA AB AB AB AF AB AK AD AA AA AA AB AB AB AA AG AG AG AS AE AC AR AX AX AQ AQ AE CABINET PARTS 2- 2- 2- 2- 2- 2- 2- 2- 2- 2- 2- 2-7-1 2-7-1 2-7-2 2- 2- LSTY-B026MRP0 PDIF-B030MRF0 PDIF-B031MRF0 GDAI-B065MRP0A HDECQB027MRF0 HDECQB028MRF0 GCABUB103MRP0 GCABUB105MRP0 TMAPCB074MRR0 FANGKB009MRY0 FANGKB010MRY0 LANGQB016MRP0 LANGQB020MRP0 PGLSPB004MRE0 PCOVPB096MRT0 PCOVPB097MRT0 M M M M M M M M M M M M M M M M Rear stay Hood exhaust louver [R-1405] Hood exhaust louver [R-1406] Base plate R Front panel L [R-1405] Front panel L [R-1406] Outer case cabinet [R-1405] Outer case cabinet [R-1406] Schematic diagram Hood lamp glass assembly [R-1405] Hood lamp glass assembly [R-1406] Hood lamp glass angle [R-1405] Hood lamp glass angle [R-1406] Hood lamp glass Base cover [R-1405] Base cover [R-1406] 3- 3- 1A 3- 1B 3- 1C 3- 1D C1 C2 C21 C100 D1-4 D20-22 D24-25 D40 Q21 R1 R2 R30 RY1-2 RY4-5 SP1 T1 VRS1 3- 1-1 3- 1-2 3- 3- 3- 2-1 3- 2-1 3- 2-2 CPWBFB069MRU0 QCNCMA017JDZZ QCNCMA431DRE0 QCNCMA275DRE0 FW-VZB189MRE0 RC-KZA087DRE0 VCEAB31VW108M VCEAB31VW106M RC-QZB014MRE0 RH-DZA006PRE0 VHD1SS270A/-1 VHD1SS270A/-1 VHD1SS270A/-1 VSKRC243M//-3 VRS-L63DA391J VRS-B13AA751J VRD-B12EF332J RRLY-A113DRE0 RRLY-B004MRE0 RALM-A014DRE0 RTRNPB018MRE0 RH-VZB002MRE0+ LHLD-B018MRF0 PSHEPB023MRE0 FPNLCB424MRK0 FPNLCB425MRK0 FUNTKB368MRE0 FUNTKB367MRE0 JBTN-B140MRF0 M M J J M J J J M J J J J J J J J M M J M M M M M M M M M Control unit 3-pin connector CN-A 2-pin connector CN-B 2-pin connector CN-E Lead wire harness CN-C Capacitor 0.1 uF 50V Capacitor 1000 uF 35V Capacitor 10 uF 35V Capacitor uF 230V Diode (1N4002) Diode (1SS270A) Diode (1SS270A) Diode (1SS270A) Transistor (KRC243M) Resistor 390 ohm 2W Resistor 750 ohm 1W Resistor 3.3k ohm 1/4W Relay (DU24D1-1PR(M)) Relay (FTR-F3AA024E) Buzzer (PKM22EPT) Transformer Varistor (JVR-10S471J) LCD holder LED sheet Control panel sub assembly [R-1405] Control panel sub, assembly [R-1406] Key unit [R-1405] Key unit [R-1406] Open button [R-1405] CONTROL PANEL PARTS 38 R-1405 R-1406 REF NO 3- 2-2 3- 2-3 3- 2-3 3- 2-4 3- PART NO JBTN-B141MRF0 HPNLCB172MRF0 HPNLCB173MRF0 MSPRTA050WRE0 XEPSD30P10XS0 § M M M M M DESCRIPTION Open button [R-1406] Control panel frame [R-1405] Control panel frame [R-1406] Button spring Screw; 3mm x 10mm LSTPPB038MRF0 FROLPB025MRK0 NTNT-A108WRE0 LBNDKB009MRP0 PDUC-B111MRF0 MLEVPB016MRF0 ************* PPACGB014MRF0 PHOK-B018MRF0 FANGTB005MRY0 NFANPB006MRE0 LBSHC0037WRE0 MLEVFB007MRP0 PDUC-B112MRP0 PCOVPB085MRP0 MSPRTA046WRE0 LANGTB055MRP0 PDUC-B115MRF0 PDUC-B114MRF0 PDUC-B113MRP0 PDUC-B117MRF0 PCUSGB043MRP0 M M M M M M M M M M M M M M M M M M M M M M Door stopper Turntable support assembly Turntable tray Capacitor holder Magnetron duct Open lever Oven cavity (Not replaceable part) Turntable motor packing Latch hook Unit mounting plate assembly Fan blade Cord bushing Mounting lever Hood intake duct R Waveguide cover Latch spring Chassis support Hood duct R Hood duct L Fan duct Orifice Transformer cushion Q'TY CODE AE AT AT AA AB OVEN PARTS 4- 4- 4- 4- 4- 4- 4- 4- 4- 4-10 4-11 4-12 4-13 4-14 4-15 4-16 4-17 4-18 4-19 4-20 4-21 4-22 1 1 1 1 1 1 1 2 1 1 AB AN AM AB AF AD -AA AF AS AC AB AC AG AH AB AD AQ AQ AH AC AC 1 1 1 1 1 BB BB AW AY AY AC AB AG AE AH AA 1 2 1 1 1 AH AC AC AB AA AA AA AA AD AD AB AT AT AA AA AB AT AF AH DOOR PARTS 5 5- 5- 5- 5-2-1 5-2-2 5- 5- 5- 5- CDORFB321MRK0 CDORFB322MRK0 FDORFB070MRT0 FCOV-B225MRK0 FCOV-B226MRK0 LSTPPB023MRF0 MSPRTA046WRE0 GCOVHB044MRF0 PSHEPB021MRE0 HPNL-B102MRE0 XCPSD40P08000 M M M M M M M M M M M Door assembly [R-1405] Door assembly [R-1406] Door panel assembly Door frame assembly [R-1405] Door frame assembly [R-1406] Latch head Latch spring Choke cover Sealer film Door screen Screw : 4mm x 8mm 6- 6-1-1 6-1-2 6-1-3 6-1-4 6-1-5 6-1-6 6-1-7 6-1-8 6- 6- 6- 6- 6- 6- 6- 6- 6-10 6-11 CFZK-B460MRK0 LBSHC0040MRE0 LX-BZ0195WRE0 LX-MZB001MRE0 XBRSD50P60000 XOTSD40P12000 XTSSD50P35000 XWHSD50-16300 LANG-B002MRP0 TINSEB318MRK0 TINSKB081MRR0 QW-QZB025MRE0 FW-VZB202MRE0 TCAUAB041MRR0 TCAUAB045MRR0 TCAUAB005MRR0 FW-VZB189MRE0 PFIL-B002MRE0 FFTA-B005MRK0 M M M M M M M M M M M M M M M M M M M Installation material assembly Grommet Toggle screw Cord holder Screw : 5mm x 60mm Screw : 4mm x 12mm Screw : 5mm x 35mm Washer Scale plate Operation manual Top template High voltage wire A Main harness DHHS service caution label Monitor caution label Revised DHHS/GRD C/label Low voltage harness Grease filter Exhaust damper assembly MISCELLANEOUS 39 R-1405 R-1406 REF NO PART NO § LX-CZB004MRE0 LX-CZB016MRE0 XOTSE40P12000 XOTSF40P12000 XOTSD40P12000 XHTSD40P08RV0 LX-CZA038WRE0 LX-CZ0052WRE0 XCPSD30P08000 LX-BZA041WRE0 XCBSD30P08000 M M M M M M M M M M M DESCRIPTION Q'TY CODE SCREWS,NUTS AND WASHERS 77777777777- 1 2 Special Special Screw : Screw : Screw : Screw : Special Special Screw : Special Screw : screw screw 4mm x 4mm x 4mm x 4mm x screw screw 4mm x screw 3mm x (R-1405) (R-1406) 12mm (R-1405) 12mm (R-1406) 12mm 8mm 3 5 18 2 8mm 8mm HOW TO ORDER REPLACEMENT PARTS To have your order filled promptly and correctly, please furnish the following information MODEL NUMBER REF NO PART NO DESCRIPTION Order Parts from the authorized SHARP parts Distributor for your area Defective parts requiring return should be returned as indicated in the Service Policy PACKING AND ACCESSORIES 4-3 TURNTABLE TRAY TOP PAD 6-10 GREASE FILTER (x 2) 6-3 TOP/WALL TEMPLATE DOOR PROTECTOR 6-2 OPERATION MANUAL 6-1 INSTALL MATERIAL ASSEMBLY WRAP COVER 6-11 EXHAUST DAMPER ASSEMBLY ACCESSORY PACK SPADFA020WRE0 DOOR PAD BOTTOM PAD Non-replaceable items PACKING CASE 40 AA AA AA AB AA AA AA AA AA AA AA R-1405 R-1406 OVEN AND CABINET PARTS A A 6-1-5 6-11 4-10 7-3 2-1 7-3 7-5 B 7-3 2-5 7-3 7-5 4-12 1-12 7-5 4-19 7-5 1-14 C C 2-6 7-3 7-3 4-17 7-3 4-16 4-18 4-13 D B 4-17 D 2-4 2-2 7-3 4-7 6-8 7-7 4-16 1-3 7-1 4-15 6-7 E 7-6 4-8 6-6 4-3 1-9 1-4 7-9 4-5 1-16 4-6 F 2-8 1-16 1-10 7-7 7-8 E 7-8 1-13 4-21 1-7 1-11 1-5 4-4 1-1 1-10 1-11 1-2 7-4 4-11 1-8 4-9 1-15 4-20 4-13 4-14 4-22 1-6 F 1-13 7-3 4-2 2-3 7-3 7-3 7-2 7-3 7-3 G 2-7 G 6-10 2-7-2 6-10 2-7-1 7-2 H H 41 R-1405 R-1406 CONTROL PANEL PARTS 3-3 3-1-2 3-1-1 A A 3-1 3-2 3-2-1 3-3 3-3 B B 7-3 DOOR PARTS 3-2-3 3-2-2 3-2-4 C C 5-3 5-1 D D 5-5 5-6 5-4 E E 5-2-1 5-2-2 5-2 F F MISCELLANEOUS G G 6-4 6-1 6-1-1 6-1-4 6-5 6-1-5 6-1-2 6-1-6 6-9 6-1-7 6-1-3 H Actual wire harness may be different from illustration H 6-1-8 42 R-1405 R-1406 NOTES 43 R-1405 R-1406 NOTES 44 R-1405 R-1406 NOTES 45 R-1405 R-1406 COPYRIGHT © 2002 BY SHARP CORPORATION ALL RIGHTS RESERVED No part of this publication may be reproduced, stored in retrieval systems, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission of the publisher '02 SHARP CORP (9S2.420E) Printed in U.S.A 46 ... After servicing, record data on service invoice and microwave leakage report R- 1405 R- 1406 SERVICE MANUAL PRODUCT DESCRIPTION OVER THE RANGE MICROWAVE OVEN R- 1405/ R- 1406 GENERAL INFORMATION FOREWORD... water and measure the temperature of the water with a thermometer or thermocouple temperature tester Stir the thermometer or thermocouple through the water until the temperature stabilizes Record... below for repair 20 R- 1405 R- 1406 TEST PROCEDURES PROCEDURE LETTER COMPONENT TEST STEPS OCCURRENCE CAUSE OR CORRECTION Only pattern at "a" is broken *Insert jumper wire J1 and solder Pattern at