Service manual

ManualsBrandsSharp ManualsMicrowave OvenR-410F

R-509FW

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. (High Voltage Capacitor, High Voltage Power

Transformer, Magnetron, High Voltage Rectifier Assembly, High Voltage Harness etc..)

S22M183R509FE

R-509FW

MICROWAVE OVEN

MODEL

SUPPLEMENTAL SERVICE MANUAL

SHARP ELECTRONICS CORPORATION

This document has been published to be used for after

sales service only.

The contents are subject to change without notice.

Service Headquarters: Sharp Plaza, Mahwah, New Jersey, 07430-2135

R-509FW

This is a supplemental Service Manual for Microwave Oven model R-509FW. This model is quite similar to the base

models; R-510FK/FW (S12M182R510FE).

This supplemental manual must be used in conjunction with the base model service manual for complete operation,

service, safety and replacement parts information.

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 ................................................................................................................1

MICROWAVE MEASUREMENT PROCEDURE .....................................................................................................2

FOREWORD AND WARNING ................................................................................................................................3

PRODUCT SPECIFICATIONS ...............................................................................................................................4

GENERAL INFORMATION ...................................................................................................................................4

OPERATION .........................................................................................................................................................6

TEST PROCEDURE ..............................................................................................................................................8

TOUCH CONTROL PANEL ..................................................................................................................................12

CPU UNIT CIRCUIT .............................................................................................................................................16

PARTS LIST ........................................................................................................................................................17

PACKING AND ACCESSORIES .........................................................................................................................21

Summary of content (24 pages)

PAGE 1
R- 509FW SUPPLEMENTAL SERVICE MANUAL S22M183R509FE MICROWAVE OVEN MODEL R-509FW R-509FW This is a supplemental Service Manual for Microwave Oven model R-509FW. This model is quite similar to the base models; R-510FK/FW (S12M182R510FE). This supplemental manual must be used in conjunction with the base model service manual for complete operation, service, safety and replacement parts information.
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R-509FW 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.
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R-509FW 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.
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R-509FW 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.
PAGE 5
R-509FW SERVICE MANUAL PRODUCT DESCRIPTION MICROWAVE OVEN R-509FW GENERAL INFORMATION FOREWORD This Manual has been prepared to provide Sharp Electronics Corp. Service Personnel with Operation and Service Information for the SHARP MICROWAVE OVEN, R-509FW. 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 6
R-509FW SPECIFICATION ITEM DESCRIPTION PowerRequirements 120 Volts 13.3 Amperes, 1600 watts 60 Hertz Single phase, 3 wire grounded Power Output 1100 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" 1.8 Cubic Feet Control Complement Touch Control System Clock ( 1:00 - 12:59 ) Timer (0 - 99 min.
PAGE 7
R-509FW 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.
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R-509FW 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.
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R-509FW 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) CONTROL UNIT COM. ORG RED MONITOR SWITCH N.C. TURN TTM TABLE FM FAN MOTOR MOTOR OL OVEN LAMP HIGH VOLTAGE RECTIFIER COM. WHT WHT WHT GRY WHT HIGH VOLTAGE CAPACITOR F1 ORG ORG OVEN LAMP RELAY WHT WHT N.O.
PAGE 10
R-509FW 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.
PAGE 11
R-509FW TEST PROCEDURES PROCEDURE LETTER COMPONENT TEST 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) Replace the Key unit. 5) Reconnect all leads removed from components during testing. 6) Re-install the outer case (cabinet). 7) Reconnect the power supply cord after the outer case is installed. 8) Run the oven and check all functions. 2. Control Unit The following symptoms indicate a defective control unit.
PAGE 12
R-509FW TEST PROCEDURES PROCEDURE LETTER COMPONENT TEST 6. Re-install the outer case (cabinet). 7. Reconnect the power supply cord after the outer case is installed. 8. Run the oven and check all functions. 7 6 5 4 3 2 START 1 5 TIMER CLOCK 9 COOK 4 8 STOP CLEAR 3 REHEAT 7 0 POWER LEVEL 6 10 9 8 POPCORN 1 MINUTE PLUS 14 13 12 11 DEFROST 2 Key Unit K RELAY TEST 1. Disconnect the power supply cord, and then remove outer case. 2. Open the door and block it open. 3.
PAGE 13
R-509FW TEST PROCEDURES PROCEDURE LETTER COMPONENT TEST (6) The oven will operate as follows. (in case of Steak/Chops 0.5lb) (7) If improper operation is indicated, the control unit is probably defective and should be checked. M 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.
PAGE 14
R-509FW TOUCH CONTROL PANEL ASSEMBLY OUTLINE OF TOUCH CONTROL PANEL This circuit consists of 22 segments and 3 common electrodes using a Liquid Crystal Display. 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.
PAGE 15
R-509FW 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 P63 OUT 8 AN2 IN Input terminal to judge the model.
PAGE 16
R-509FW Pin No. 27 Signal RESET I/O IN Description 28 P71 OUT 29 P70 IN Signal similar to P47. When either G9 line on key matrix is touched, a corresponding signal will be input into P70. 30 XIN IN Internal clock oscillation frequency input setting. The internal clock frequency is set by inserting the ceramic filter oscillation circuit with respect to XOUT terminal. 31 XOUT OUT 32 VSS IN 33 P27 OUT Key strobe signal. Signal applied to touch-key section.
PAGE 17
R-509FW Pin No. 73/74 VCC/VREF Signal I/O IN Connected to GND. Description 75 AVSS IN Connected to VC. 76 COM3 OUT Terminal not used. 77 COM2 OUT Common data signal. Connected to LCD signal COM3. 78 COM1 OUT Common data signal. Connected to LCD signal COM2. 79 COM0 OUT Common data signal. Connected to LCD signal COM1. 80 VL3 IN Power source voltage input terminal. Standard voltage for LCD.
PAGE 18
R-509FW A B C D E F G H LIQUID CRYSTAL DISPLAY Q20 DTA143EKA R7 15k SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 SEG19 SEG20 SEG21 SEG22 COM3 COM2 C0M1 65 6 5 4 3 2 START 1 5 TIMER CLOCK 9 COOK 4 8 STOP CLEAR 3 REHEAT 7 0 POWER LEVEL 6 9 7 NOTE : IF NOT SPCIFIED, 1/16W ± 5% 10 R69 15k 11 R70 15k DEFROST 12 R71 15k POPCORN 1 MINUTE PLUS 13 R72 15k 2 R60 15k C60 330p/50v C61 330p/50v C62 330p/50v C63 330
PAGE 19
R-509FW PARTS LIST Note: The parts marked “∆ ∆” may cause undue microwave exposure. The parts marked “*” are used in voltage more than 250V. "§" MARK: PARTS DELIVERY SECTION. REF. NO. PART NO.
PAGE 20
R-509FW REF. NO. PART NO.
PAGE 21
R-509FW 2 1 4 3 6 5 OVEN AND CABINET PARTS A A 7-8 7-8 7-6 2-3 B B 7-9 4-7 7-6 6-7 7-5 C C 1-9 1-5 7-9 4-6 7-3 1-13 1-8 7-6 D D 4-8 1-6 7-7 4-2 7-4 E 4-9 6-6 1-3 7-2 6-3 1-4 7-2 6-5 7-4 F 1-11 1-12 7-5 1-6 4-11 1-7 2-1 6-4 4-5 7-1 1-7 4-3 4-10 F E 1-10 7-1 4-4 4-1 1-1 G G 1-2 7-4 7-4 2-2 2-2 7-4 2-2 H 4-12 H 2-2 1 2 4 3 19 5 6
PAGE 22
R-509FW 2 1 4 3 6 5 CONTROL PANEL PARTS A A 3-1 3-4 3-2 3-3 3-6 3-5 3-2-1 B B 3-2-3 C C 3-2-2 DOOR PARTS D D 5-7 5-4 E E 5-6 5-5 F F MISCELLANEOUS 5-2 G 5-3 G 6-1 5-1 6-2 6-9 Actual wire harness may be different from illustration.
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R-509FW PACKING AND ACCESSORIES TOP PAD ASSEMBLY DOOR PROTECTION SHEET 6-5 TURNTABLE TRAY PLASTIC BAG ON TOP OF THE OVEN TRAY HOLDER 6-8 OPERATION MANUAL IN TO TH 6-4 TURNTABLE SUPPORT PACKING CASE Non-replaceable items 21 EO N VE Y VIT CA BOTTOM PAD ASSEMBLY
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R-509FW 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. 2002 SHARP CORP. (2M2.20E) Printed in U.S.