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Sharp R-209BW Supplemental Service Manual

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SUPPLEMENTAL SERVICE MANUAL
This is a supplemental Service Manual for Model R-209BW. This model is quite similar to base
model R-209BK. Use this supplemental manual together with the Base Model Service Manual
(Refer No. is S1803R220BPW/) for complete operation, service information, etc..
BEFORE SERVICING ...................................................................................................... INSIDE FRONT COVER
WARNING TO SERVICE PERSONNEL ................................................................................................................ 1
FOREWORD AND WARNING ............................................................................................................................... 2
PRODUCT DESCRIPTION .................................................................................................................................... 3
TEST PROCEDURE .............................................................................................................................................. 5
TOUCH CONTROL PANEL ASSEBLY ................................................................................................................. 7
CONTROL PANEL CIRCUIT ............................................................................................................................... 10
PARTS LIST ........................................................................................................................................................ 11
PACKING AND ACCESSORIES ......................................................................................................................... 12
SHARP CORPORATION
EX PR ES
S
MIN UT E
DE FR OS
T
PLU S
In the interest of user-safety the oven should be restored to its original
SNA CKS
PO PC OR
N
BEV ER AG
E
COO KIN
G
condition and only parts identical to those specified should be used.
BAK ED
PO TAT O
FRE SH
VEG ETA
BLE S
REH EAT
ING
DIN NE R
PLA TE
RO LL,
MU FFI N
WARNING TO SERVICE PERSONNEL: Microwave ovens con-
tain 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..)

TABLE OF CONTENTS

MICROWAVE OVEN
R-209BW
MODEL
This document has been published to be used for after
sales service only.
The contents are subject to change without notice.
R-209BW
S6013R209BPW/
Page
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Summary of Contents for Sharp R-209BW

  • Page 1: Table Of Contents

    Voltage Power Transformer, Magnetron, High Voltage Rectifier Assembly, High Voltage Harness etc..) This is a supplemental Service Manual for Model R-209BW. This model is quite similar to base model R-209BK. Use this supplemental manual together with the Base Model Service Manual (Refer No.

  • 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 @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 The Food and Drug Administration's Center for Devices and Radiological Health immediately.

  • Page 3: Warning To Service Personnel

    R-209BW WARNING TO SERVICE PERSONNEL Microwave ovens contain circuitry capable of pro- ducing 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 Trans- former, Magnetron, High Voltage Rectifier Assem- bly, High Voltage Harness etc..

  • Page 4: Foreword And Warning

    MICROWAVE OVEN R-209BW FOREWORD This Manual has been prepared to provide Sharp Electronics Corp. Service Personnel with Operation and Service Information for the SHARP MICROWAVE OVEN, R-209BW. The model R-209BW is quite similar to base model R-209BK (Refer No. is S1803R220BPW/).

  • Page 5: Product Description

    R-209BW PRODUCT DESCRIPTION SPECIFICATIONS ITEM DESCRIPTION Power Requirements 120 Volts 60 Hertz Single phase, 3 wire grounded Power Consumption 1100W / Approx. 9.5 Amperes Power Output 700 W nominal of RF microwave energy (IEC Test procedure) Operating frequency 2450 MHz Case Dimensions Width 18-1/8"...
  • Page 6 R-209BW TOUCH CONTROL PANEL Time display DEF. LBS. QTY. CHECK Indicator EXPRESS MINUTE DEFROST PLUS SNACKS POPCORN BEVERAGE COOKING BAKED FRESH POTATO VEGETABLES REHEATING DINNER ROLL, PLATE MUFFIN SCHEMATIC NOTE: CONDITION OF OVEN 1. DOOR CLOSED CLOCK APPEARS ON DISPLAY...

  • Page 7: Test Procedure

    R-209BW TEST PROCEDURES PROCEDURE COMPONENT TEST LETTER KEY UNIT 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. If the display fails to clear when the STOP/CLEAR pad is depressed, first verify the flat ribbon cable is making good contact, verify that the door sensing switch (stop switch) operates properly;...
  • Page 8 R-209BW TEST PROCEDURES PROCEDURE COMPONENT TEST LETTER 11. Discharge high voltage capacitor. 12. Reconnect all leads removed from components during testing. 13. Re-install the outer case (cabinet). 14. Reconnect the power supply cord after the outer case is installed. 15. Run the oven and check all functions...

  • Page 9: Touch Control Panel Assebly

    R-209BW TEST PROCEDURES PROCEDURE COMPONENT TEST LETTER 10) Discharge high voltage capacitor. 11) Reconnect all leads removed from components during testing. 12) Re-install the outer case (cabinet). 13) Reconnect the power supply cord after the outer case is installed. 14) Run the oven and check all functions.
  • Page 10 R-209BW DESCRIPTION OF LSI The I/O signal of the LSI are detailed in the following table. Pin No. Signal Description RESET Auto clear terminal. Signal is input to reset the LSI to the initial state when power is supplied. Temporarily set to “L”...
  • Page 11 R-209BW Pin No. Signal Description Signal similar to K02. When either G7 line on key matrix is touched, a corresponding signal will be input into P23. Signal similar to K02. When either G8 line on key matrix is touched, a corresponding signal will be input into K00.
  • Page 12 R-209BW...

  • Page 13: Parts List

    R-209BW PARTS LIST ∆ Note: The parts marked “ ” may cause undue microwave exposure. The parts marked “*” are used in voltage more than 250V. REF. NO. PART NO. DESCRIPTION Q'TY CODE ELECTRIC PARTS 1- 1 QSW-MA131WRE0 Secondary interlock switch & door sensing switch...

  • Page 14: Packing And Accessories

    1. MODEL NUMBER 2. REF. NO. 3. PART NO. 4. 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. TOP PAD ASSEMBLY PACKING AND ACCESSORIES...
  • Page 15 R-209BW 7-11 OVEN AND CABINET PARTS 7-10 7-11 7-10 4-14 4-17 6-10 7-12 4-14 6-10 6-12 4-11 6-11 1-11 4-16 1-10 4-10 4-15 1-12 4-13 4-12...
  • Page 16 3-2-2 3-2-1 MISCELLANEOUS Actual wire harness may be different than illustration. COPYRIGHT © 2000 BY SHARP CORPORATION ALL RIGHTS RESERVED. No part of this publication may be repro- duced, stored in retrieval systems, or trans- mitted in any form or by any means, elec-...

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