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Sharp R-21J Supplemental Service Manual
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Sharp R-21J Supplemental Service Manual

Light duty commercial microwave oven
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SUPPLEMENTAL SERVICE MANUAL
1000W / R-21J V
This is a supplemental Service Manual for Model R-21JV. This model is quite similar to base
model R-21HV. Use this supplemental manual together with the Base Model Service Manual
(Reference No. is S7814R21HTP//) for complete operation, service information, etc..
BEFORE SERVICING ...................................................................................................... INSIDE FRONT COVER
WARNING TO SERVICE PERSONNEL ................................................................................................................ 1
FOREWORD AND WARNING ............................................................................................................................... 2
PRODUCT SPECIFICATIONS .............................................................................................................................. 3
SCHEMATIC DIAGRAM ........................................................................................................................................ 4
PARTS LIST .......................................................................................................................................................... 5
PACKING AND ACCESSORIES ........................................................................................................................... 7
SHARP CORPORATION
ON
DEF
NO. X2 CHECK
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 con-
tain 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 Capaci-
tor, High Voltage Power Transformer, Magnetron, High Volt-
age Rectifier Assembly, High Voltage Harness etc..)

TABLE OF CONTENTS

LIGHT DUTY
COMMERCIAL
MICROWAVE OVEN
R-21JV
MODEL
This document has been published to be used for after
sales service only.
The contents are subject to change without notice.
R-21JV
S3908R21HVP//
Page

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Summary of Contents for Sharp R-21J

  • Page 1: Table Of Contents

    SUPPLEMENTAL SERVICE MANUAL S3908R21HVP// LIGHT DUTY COMMERCIAL MICROWAVE OVEN 1000W / R-21J V NO. X2 CHECK R-21JV MODEL 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.

  • 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-21JV 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-21JV FOREWORD This Manual has been prepared to provide Sharp Electronics Corp. Service Personnel with Operation and Service Information for the SHARP MICROWAVE OVEN, R-21JV. The model R-21JV is quite similar to base model R-21HV (Refer No. is S7814R21HTP//).

  • Page 5: Product Specifications

    R-21JV SPECIFICATION ITEM DESCRIPTION Power Requirements 120 Volts 14 Amperes 60 Hertz / Single phase, 3 wire grounded Power Output 1000 watts (IEC 705 Test Procedure) Operating frequency of 2450MHz Case Dimensions Width 20-1/2" (520mm) Height 12-1/8" (309mm) Depth 16" (406mm) Cooking Cavity Dimensions Width 13-7/8"...

  • Page 6: Schematic Diagram

    R-21JV NOTE: Indicates components with potential above 250 V. SCHEMATIC NOTE: CONDITION OF OVEN 1. DOOR CLOSED. APPEARED. THERMAL THERMAL CUT-OUT CUT-OUT MONITOR 125˚C (OVEN) 145˚C (MAG.) FUSE 20A POWER TRANSFORMER AC120V 60 Hz CAPACITOR 0.94 µF CONTROL UNIT 2400V DOOR SENSING SWITCH OVEN...

  • Page 7: Parts List

    R-21JV 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 FFS-BA015WRK0 Monitor fuse and monitor switch assembly 1- 2 QSW-MA051WRE0 Door sensing switch...
  • Page 8 R-21JV REF. NO. PART NO. DESCRIPTION Q'TY CODE RALM-A014DRE0 Buzzer (PKM22EPT) RTRNPA094DRE0 Touch control transformer VRS1 RH-VZA032DRE0 Varistor (10G471K) VHEHZ4A2///-1 Zener diode (HZ4A2) 3- 2 FPNLCB435WRK0 Control panel frame with key unit 3- 2-1 FUNTKA881WRE0 Key unit 3- 2-2 GCOVAA264WRP0 C/P case 3- 2-3 GMADIA109WRF0...

  • Page 9: 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 10 R-21JV OVEN AND CABINET PARTS 1-10 4-28 7-13 4-10 7-13 7-13 4-25 7-12 4-32 1-13 4-26 4-34 4-26 4-24 4-27 4-15 4-14 4-15 4-36 4-16 7-10 4-39 7-11 1-12 4-23 4-18 4-20 4-24 4-21 4-20 4-21 4-21 4-22 4-20 4-13 4-33 4-19 4-29...
  • Page 11 R-21JV CONTROL PANEL PARTS 3-2-3 3-2-2 DOOR PARTS 3-2-1 5-15 5-17 5-16 5-14 5-12 5-16 5-20 5-16 5-4-2 5-16 5-13 4-41 5-4-1 5-4-3 5-16 5-16 5-12 5-19 5-18 5-11 5-19 MISCELLANEOUS 5-10 Actual wire harness may be different from illustration.
  • Page 12 No part of this publication may be repro- duced, stored in retrieval systems, or trans- mitted in any form or by any means, elec- tronic, mechanical, photocopying, record- ing, or otherwise, without prior written per- mission of the publisher. '99 SHARP CORP. (1S2.530E) Printed in U.S.A...