R- 510HK R-510HW SERVICE MANUAL S43M208R510HE MICROWAVE OVEN MODELS R-510HK R-510HW R-510HK 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 following parts may result in a severe, possibly fatal, electrical shock.
R-510HK R-510HW 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.
R-510HK R-510HW 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, 1.
R- 510HK R-510HW 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), 5 mW/cm2 at any point 5cm or more from the external surface of the oven.
R-510HK R-510HW SERVICE MANUAL PRODUCT DESCRIPTION MICROWAVE OVEN R-510HK/R-510HW GENERAL INFORMATION FOREWORD This Manual has been prepared to provide Sharp Electronics Corp. Service Personnel with Operation and Service Information for the SHARP MICROWAVE OVENS R-510HK and R-510HW. 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.
R- 510HK R-510HW SPECIFICATION ITEM DESCRIPTION PowerRequirements 120 Volts 14.3 Amperes, 1700 watts 60 Hertz Single phase, 3 wire grounded Power Output 1200 watts (IEC 705 TEST PROCEDURE) Operating frequency of 2450MHz Case Dimensions Width 24" Height 13-3/8" Depth 19-1/8" Cooking Cavity Dimensions Width 17-3/8" Height 10-1/2" Depth 18-5/8" 2.0 Cubic Feet Control Complement Touch Control System Clock ( 1:00 - 12:59 ) Timer (0 - 99 min.
R-510HK R-510HW a qualified electrician and have it replaced with a properly grounded three-pronged wall receptacle or have a grounding adapter properly grounded and polarized. If the extension cord must be used, it should be a 3-wire, 15 amp. or higher rated cord. Do not drape over a countertop or table where it can be pulled on by children or tripped over accidentally.
R- 510HK R-510HW OPERATION DESCRIPTION OF OPERATING SEQUENCE The following is a description of component functions during oven operation. and is mechanically associated with the door so that it will function in the following sequence. (1) When the door opens from the 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.
R-510HK R-510HW Note:* Indicates component SCHEMATIC NOTE: CONDITION OF OVEN 1. Door Closed 2. CLOCK APPEARS ON DISPLAY CAVITY TEMPERATURE FUSE C/T FUSE ORG ORG BRN ORG RED RED N.O. COM. B2 (RY1) ORG ORG BRN MONITOR SWITCH N.C. TURN TTM TABLE FM FAN MOTOR MOTOR RED HIGH VOLTAGE RECTIFIER COM. WHT WHT WHT GRY WHT HIGH VOLTAGE CAPACITOR F1 OVEN LAMP RELAY OL OVEN LAMP MAGNETRON F2 CONTROL UNIT COM. HUMIDITY SENSOR WHT WHT N.O.
R- 510HK R-510HW DESCRIPTION AND FUNCTION OF COMPONENTS DOOR OPEN MECHANISM 3. If the door is opened, and the secondary interlock relay (RY2) and primary interlock switch contacts fail to open, the C/T fuse blows simultaneously with closing of the monitor switch contacts. CAUTION: BEFORE REPLACING A BLOWN C/T FUSE TEST THE DOOR SENSING SWITCH, SECONDARY INTERLOCK RELAY (RY2), RELAY (RY1), PRIMARY INTERLOCK SWITCH AND MONITOR SWITCH FOR PROPER OPERATION. (REFER TO CHAPTER "TEST PROCEDURE").
R-510HK R-510HW TROUBLESHOOTING GUIDE Never touch any part in the circuit with your hand or an uninsulated tool while the power supply is connected. When troubleshooting the microwave 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 "section.
R- 510HK R-510HW CK = Check / RE = Replace Home fuse or circuit breaker blows when power cord is plugged into wall receptacle C/T fuse blows when power cord is plugged into wall receptacle. OFF CONDITION All letters and indicators do not appear in display when power cord is first plugged into wall outlet. Display does not operate properly when STOP/CLEAR key is touched. (Buzzer should sound and ":" or time of day should appear in display.) Oven lamp does not light when door is opened.
R-510HK R-510HW TEST PROCEDURES PROCEDURE LETTER COMPONENT TEST 4. To test for an open filament, isolate the magnetron from the high voltage circuit. A continuity check across the magnetron filament leads should indicate less than 1 ohm. 5. To test for a shorted magnetron, connect the ohmmeter leads between the magnetron filament leads and chassis ground. This test should indicate an infinite resistance. If there is little or no resistance the magnetron is grounded and must be replaced. 6.
R- 510HK R-510HW TEST PROCEDURES PROCEDURE LETTER C COMPONENT TEST HIGH VOLTAGE RECTIFIER TEST 1. 2. 3. 4. Disconnect the power supply cord, and then remove outer case. Open the door and block it open. Discharge high voltage capacitor. Isolate the rectifier from the circuit. Using the highest ohm scale of the meter, read the resistance across the terminals and observe, reverse the leads to the rectifier terminals and observe meter reading.
R-510HK R-510HW TEST PROCEDURES PROCEDURE LETTER COMPONENT TEST 5. If the C/T fuse is blown when the door is opened, check the secondary interlock relay, primary interlock switch and monitor switch according to the "TEST PROCEDURE" for those switches before replacing the blown monitor fuse. CAUTION: BEFORE REPLACING A BLOWN C/T FUSE, TEST THE SECONDARY INTERLOCK RELAY, PRIMARY INTERLOCK SWITCH, DOOR SENSING SWITCH AND MONITOR SWITCH FOR PROPER OPERATION.
R- 510HK R-510HW TEST PROCEDURES PROCEDURE LETTER G MONITOR SWITCH TEST 1. 2. 3. 4. 5. 6. 7. 8. COMPONENT TEST Disconnect the power supply cord, and then remove outer case. Open the door and block it open. Discharge high voltage capacitor. Before performing this test, make sure that the primary interlock switch and the secondary interlock relay are operating properly, according to the above Switch Test Procedure. Disconnect the wire lead from the monitor switch (COM) terminal.
R-510HK R-510HW TEST PROCEDURES PROCEDURE LETTER COMPONENT TEST 2. Control Unit The following symptoms indicate a defective control unit. 2-1 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. 2-2 In connection with indicators a) At a certain digit, all or some segments do not light up. b) At a certain digit, brightness is low. c) Only one indicator does not light.
R- 510HK R-510HW TEST PROCEDURES PROCEDURE LETTER COMPONENT TEST G8 G7 G6 G5 G4 G9 G10 G11 FROZEN ENTREES RICE POPCORN G12 Pin NO. G13 G2 G1 KEEP WARM BAKED BONELESS BONE-IN POTATOES POULTRY POULTRY G13 Pin NO.
R-510HK R-510HW TEST PROCEDURES PROCEDURE LETTER M COMPONENT TEST FOIL PATTERN ON THE PRINTED WIRING BOARD TEST To protect the electronic circuits, this model is provided with a fine foil pattern added to the primary on the PWB, this foil pattern acts as a fuse. 1. 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.
R- 510HK R-510HW TOUCH CONTROL PANEL ASSEMBLY OUTLINE OF TOUCH CONTROL PANEL The touch control section consists of the following units. (1) Key Unit (2) Control Unit (The Control Unit consists of Power Unit and LSI Unit). 3) Power Source Circuit This circuit generates voltages necessary in the control unit from the AC line voltage. In addition, the synchronizing signal is available in order to compose a basic standard time in the clock circuit.
R-510HK R-510HW DESCRIPTION OF LSI LSI The I/O signal of the LSI is detailed in the following table. Pin No. Signal I/O Description 1-2 VL2-VL1 IN Power source voltage input terminal. Standard voltage for LCD. 3-6 AN7-AN4 IN Terminal to change cooking input according to the Model. By using the A/D converter contained in the LSI, DC voltage in accordance with the Model in operation is applied to set up its cooking constant. 7 AN3 IN Signal coming from touch key.
R- 510HK R-510HW Pin No. Signal I/O 25 P41 IN Signal similar to AN3. When either G11 line on key matrix is touched, a corresponding signal will be input into P41. 26 P40 IN Connected to GND through the pull-down resistor. 27 RESET IN Auto clear terminal. Signal is input to reset the LSI to the initial state when power is applied. 28 P71 IN Signal similar to AN3. When either G10 line on key matrix is touched, a corresponding signal will be input into P71.
R-510HK R-510HW Pin No. Signal I/O Description Connected to LCD. The relation between signals are as follows: LSI signal (Pin No.) LCD (Pin No.) SEG0 (72) ................................ SEG 0 SEG1 (71) ................................ SEG 1 SEG2 (70) ................................ SEG 2 SEG3 (69) ................................ SEG 3 SEG4 (68) ................................ SEG 4 SEG5 (67) ................................ SEG 5 SEG6 (66) ................................ SEG 6 SEG7 (65) .........
R- 510HK R-510HW TOUCH CONTROL PANEL SERVICING 1. Precautions for Handling Electronic Components This unit uses CMOS LSI in the integral part of the circuits. When handling these parts, the following precautions should be strictly followed. CMOS LSI have extremely high impedance at its input and output terminals. For this reason, it is easily influenced by the surrounding high voltage power source, static electricity charge in clothes, etc.
R-510HK R-510HW COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE WARNING AGAINST HIGH VOLTAGE: Microwave ovens contain circuitry capable of producing very high voltage and current. Contact with the following parts may result in severe, possibly fatal, electric shock. (Example) High Voltage Capacitor, Power Transformer, Magnetron, High Voltage Rectifier Assembly, High Voltage Harness etc.. WARNING: To Avoid possible exposure to microwave energy, please follow the instructions below before operating the oven.
R- 510HK R-510HW CAUTION: 1. DISCONNECT OVEN FROM POWER SUPPLY BEFORE REMOVING OUTER CASE. 2. DISCHARGE THE HIGH VOLTAGE CAPACITOR BEFORE TOUCHING ANY OVEN COMPONENTS OR WIRING. NOTE: When replacing the outer case, the 2 special Torx screws must be reinstalled in the same locations. Special screw Screw Driver (Type: TORX T20 H or GTXH20-100) POWER TRANSFORMER REMOVAL Re-install 1. Rest transformer on the bottom plate with its primary terminals toward the oven face plate. 2.
R-510HK R-510HW OVEN LAMP AND LAMP SOCKET REMOVAL 1. 2. 3. 4. 5. Disconnect the power supply cord and remove outer case. Open the door and block it open. Discharge high voltage capacitor. Remove the oven lamp from the oven lamp socket. Pull the wire leads from the oven lamp socket by pushing the terminal hole of the oven lamp socket with the small flat type screw driver. 6. Remove the oven lamp socket from the magnetron duct by turning the socket counterclockwise. 7.
R- 510HK R-510HW Installation 1. Remove remaining adhesive on the control panel frame surfaces with a soft cloth soaked in alcohol. 2. Make sure that the LCD sheet and the liquid crystal display is installed in position. 3. Remove the backing paper from the new membrane switch and ribbon cable. 4. Insert the ribbon cable of the membrane switch into the slit of the control panel frame. 5.
R-510HK R-510HW COOLING FAN MOTOR REMOVAL REMOVAL 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. Disconnect the wire leads from the fan motor. 5. Remove the two (2) screws holding the fan motor to the oven cavity back plate. 6. Remove the fan blade from the fan motor shaft according to the following procedure. 7. Hold the edge of the rotor of the fan motor by using a pair of groove joint pliers.
R- 510HK R-510HW 3. Secure latch hook (with two (2) mounting screws) to oven flange. 4. Make sure that the monitor switch is operating properly and check continuity of the monitor circuit. Refer to chapter "Test Procedure" and Adjustment procedure. DOORSENSINGSWITCH/PRIMARY INTERLOCKSWITCHANDMONITORSWITCHADJUSTMENT 1. Disconnect the power supply cord, and then remove outer case. 2. Open the door and block it open. 3. Discharge high voltage capacitor.
R-510HK R-510HW 9. Release the door panel from twelve (12) tabs of door frame. 10.Remove the door panel from the door frame. 11.Now, door panel with sealer film is free. 12.Tear sealer film from door panel. 13.Now, door panel is free. 14.Slide latch head upward and remove it from door frame with releasing latch spring from door frame and latch head. 15.Now, latch head and latch spring are free. 16.Remove door screen from door frame 17.Now, door frame is free. RE-INSTALL 1.
1 2 COM. RY2 N.O. 2 N.O. COM. G SECONDARY INTERLOCK RELAY T1 3 30 4 COM. 5 GRY COM. PRIMARY NO INTERLOCK SWITCH WHT WHT WHT WHT TURNTABLE MOTOR Figure S-1. Pictorial Diagram C/T FUSE BRN RED WHT WHT ORG FAN MOTOR MAGNETRON POWER TRANSFORMER H.V. RECTIFIER HIGH VOLTAGE WIRE A HIGH VOLTAGE CAPACITOR HIGH VOLTAGE COMPONENTS NOTE: Hot (ORG) wire must be connected to the terminal with blue mark on the oven light socket. BLUE MARK ORG WHT 4 GRY WHT E MONITOR SWITCH N.C.
1 DOOR SENSING SWITCH B-2 B-1 POWER COM TRANSFORMER AC(H) NO OVEN LAMP TURNTABLE COM MOTOR FAN MOTOR AC(N) NO WH-2 WH-2 2 2 WH-1 WH-1 1 510 1/2W R8 0.1uF 50V C1 RY1 DU12D1-1P(M)-R 510 1/2W R7 c b D31 1SS270A D30 1SS270A RY2 DU12D1-1P(M)-R NOTE C2 D6 SP1 POWER UNIT Q4 DTA123JS 10u/35V C5 DTD143ES Q3 R5 Q2 2SA933AS 4.
R- 510HK R-510HW 1 2 4 3 5 6 A A B B DIP CHIP SIDE C C J3 CN-F C10 R90 C4 1 2 3 LED D31 CN-B D R3 D R5 C5 R6 D8 D5 T1 WH-2 B1 2 E Q1 Q4 SP1 Q3 DZ1 E C B E C B J1 E Q2 E C B D30 2 1 J5 J6 2 1 WH-2 R4 J2 D6 E R2 R7 RY2 C1 R8 F F D1 D2 P S L1 D3 D4 VRS1 G G C2 D7 RY1 H H Figure S-5 .
R-510HK R-510HW PARTS LIST ∆” may cause undue microwave exposure. Note: The parts marked “∆ The parts marked “*” are used in voltage more than 250V. "§" MARK: PARTS DELIVERY SECTION. REF. NO. PART NO.
R- 510HK R-510HW REF. NO. PART NO.
R-510HK R-510HW 2 1 4 3 6 5 OVEN AND CABINET PARTS 7-6 A A 7-6 7-8 2-3 B B 7-9 4-7 7-8 6-6 7-5 1-8 C C 1-5 7-9 4-6 7-3 7-6 1-12 D 4-8 D 1-6 7-7 4-2 7-4 E 4-9 1-9 6-5 7-2 1-4 7-2 6-4 7-4 1-10 F 1-11 7-5 F 1-6 2-1 6-3 4-5 7-1 1-7 4-3 4-10 E 1-3 1-7 7-1 4-4 4-1 1-1 G 1-2 G 7-4 7-4 2-2 2-2 7-4 2-2 4-11 2-2 H 1 2 H 4 3 35 5 6
R- 510HK R-510HW 2 1 4 3 6 5 CONTROL PANEL PARTS A A 3-2 3-1 3-6 B B 3-7 3-5 C C 3-3 3-4 DOOR PARTS D D 5-11 5-4 5-10 5-6 E E 5-8 5-9 5-7 5-5 5-1 F F MISCELLANEOUS 6-1 G G 5-2 6-2 5-3 6-8 Actual wire harness may be different from illustration.
R-510HK R-510HW PACKING AND ACCESSORIES TOP PAD ASSEMBLY DOOR PROTECTION SHEET 6-4 TURNTABLE TRAY PLASTIC BAG ON TOP OF THE OVEN TRAY HOLDER 6-7 OPERATION MANUAL IN TO TH 6-3 TURNTABLE SUPPORT PACKING CASE Non-replaceable items 37 EO N VE Y VIT CA BOTTOM PAD ASSEMBLY
R- 510HK R-510HW COPYRIGHT © 2003 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. 2002 SHARP CORP. (4M2.00E) Printed in U.S.