Service manual

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R-21JC

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

FOREWORD AND WARNING ............................................................................................................................... 2

PRODUCT SPECIFICATIONS ..............................................................................................................................3

SCHEMATIC DIAGRAM ........................................................................................................................................3

PARTS LIST ..........................................................................................................................................................4

PACKING AND ACCESSORIES ........................................................................................................................... 9

S3907R21HCP//

LIGHT DUTY

COMMERCIAL

MICROWAVE OVEN

MODEL

R-21JC

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..)

SHARP CORPORATION

This document has been published to be used for after

sales service only.

The contents are subject to change without notice.

SUPPLEMENTAL SERVICE MANUAL

This is a supplemental Service Manual for Model R-21JC. This model is quite similar to base

model R-21HC. Use this supplemental manual together with the Base Model Service Manual

(Reference No. is S7813R21HCP//) for complete operation, service information, etc..

1000W/ R-21JC

TIME GUIDE FOR ONE SERVING

15 - 30 sec.

Bagel, Roll

Muffin, Pastry

Pie Slice

30 - 60 sec.

Hot Dog

Pizza Slice

Small Sandwich

1 - 2 min.

Beverage, Soup

Large Sandwich

Popcorn, 1.5 oz.

2 - 3 min.

Casserole, Stew

Chili, Chowder

Popcorn, 3.5 oz.

With the door closed,turn the timer to 

the desired time. Oven will begin 

operating immediately.

To shut oven off manually,return timer

to "0".

INSTRUCTIONS

1.5

2.5

Summary of content (12 pages)

PAGE 1
R-21JC SUPPLEMENTAL SERVICE MANUAL S3907R21HCP// LIGHT DUTY COMMERCIAL MICROWAVE OVEN 1000W/ R-21JC TIME GUIDE FOR ONE 15 - 30 sec. Bagel, Roll Muffin, Pastry Pie Slice 2 - 3 min. Casserole, Stew Chili, Chowder Popcorn, 3.5 oz. 40 50 1 E F 30 20 C 10 D SERVING 30 - 60 sec. Hot Dog Pizza Slice Small Sandwich 1 - 2 min. Beverage, Soup Large Sandwich Popcorn, 1.5 oz. H I 2 J K L M COMM ERCIA N L MICR O T WAVE O VEN MODEL 1.5 G B A 0 6 O S R P Q R-21JC 2.
PAGE 2
R-21JC 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.
PAGE 3
R-21JC 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.
PAGE 4
R-21JC SERVICE MANUAL LIGHT DUTY COMMERCIAL MICROWAVE OVEN R-21JC FOREWORD This Manual has been prepared to provide Sharp Electronics Corp. Service Personnel with Operation and Service Information for the SHARP MICROWAVE OVEN, R-21JC. The model R-21JC is quite similar to base model R-21HC (Refer No. is S7813R21HCP//). It is recommended that service personnel carefully study the entire text of this manual and the base model's manual so that they will be qualified to render satisfactory customer service.
PAGE 5
R-21JC SPECIFICATION ITEM DESCRIPTION Power Requirements 120 Volts 14 Amperes 60 Hertz / Single phase, 3 wire grounded 1000 watts (IEC 705 Test Procedure) Operating frequency of 2450MHz Power Output Case Dimensions Width 20-1/2" (520mm) Height 12-1/8" (309mm) Depth 16" (406mm) Width 13-7/8" (353mm) Height 8-1/8" (207mm) Depth 14-5/8" (370mm) Cooking Cavity Dimensions (1.
PAGE 6
R-21JC 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.
PAGE 7
R-21JC REF. NO. R71 R72 R73 R74 RY1 RY2 SP1 SW1 VRS1 ZD1-3 ZD4-5 ZD6 3- 2 3- 2-1 3- 2-2 3- 2-3 3- 3 3- 4 3- 5 PART NO.
PAGE 8
R-21JC ∆ ∆ REF. NO. 5- 7 5- 8 5- 9 5-10 5-11 5-12 5-13 5-14 5-15 5-16 5-17 5-18 5-19 5-20 PART NO.
PAGE 9
R-21JC 2 1 4 3 6 5 7-3 7-3 2-1 A OVEN AND CABINET PARTS A 7-3 1-10 1-9 4-28 7-13 7-3 6-6 4-9 B B 4-10 7-13 6-7 4-25 7-6 7-12 4-32 1-4 6-5 1-13 4-26 4-34 7-13 7-1 4-26 6-3 C 4-27 4-24 6-4 1-4 C 4-15 4-14 7-7 7-7 4-15 4-36 4-2 1-1 4-16 7-9 7-10 1-8 4-39 7-11 D 4-21 4-22 4-18 4-24 4-20 4-21 D 1-12 4-23 7-8 7-7 4-21 4-20 1-7 E 4-33 6-9 4-19 7-2 4-13 7-4 E 7-1 7-4 4-29 1-11 7-1 4-31 1-15 7-7 4-6 7-1 1-6 4-3 4-8 4-30 F 1-3 F 4-12 1-1 2
PAGE 10
R-21JC 2 1 4 3 6 5 CONTROL PANEL PARTS 3-1 A A 3-5 3-2 B B 3-5 3-2-1 3-2-2 3-2-3 C C 3-3 DOOR PARTS 5-15 3-4 5-17 5-16 D D 5-14 5-2 5-12 5-16 5-20 5-16 5-4-2 5-16 E 5-13 x4 E 5-4 4-41 5-1 5-4-1 5-4-3 5-16 x2 5-16 5-12 F F 5-8 5-7 5-19 5-9 5-18 5-11 5-3 5-8 5-19 G G MISCELLANEOUS 5-6 5-5 6-2 6-8 5-10 H H Actual wire harness may be different from illustration.
PAGE 11
R-21JC PACKING AND ACCESSORIES TOP PAD ASSEMBLY (FPADBA385WRK0) WRAP COVER (SSAKHA034WRE0) TRAY HOLDER DOOR PROTECTION SHEET (SPADFA435WRE0) (SPADPA204WRE0) 6-1 INSTRUCTION BOOK the avity Into en C v O BOTTOM PAD ASSEMBLY (FPADBA386WRK0) PACKING CASE Not Replaceable Items.
PAGE 12
R-21JC COPYRIGHT © 1999 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. '99 SHARP CORP. (1S2.530E) Printed in U.S.