R-21JCA-F

SERVICE MANUAL

1000W/ R-21JCA

C O M

 

 

M E R

 

 

C I A L

M I C R

 

 

O W A

O

 

V E

 

 

V E N

TIME GUIDE

 

 

FOR ONE SERVING

15 - 30 sec.

30 - 60 sec.

Bagel, Roll

Hot Dog

Muffin,

Pastry

Pizza Slice

Pie Slice

Small Sandwich

1 - 2 min.

2 - 3 min.

Beverage, Soup

Casserole, Stew

Large

Sandwich

 

Chili, Chowder

Popcorn, 1.5 oz.

Popcorn, 3.5 oz.

30

40 50

1

 

1.5

 

 

 

 

D

E

F

G

 

 

 

20

C

 

 

 

H

 

 

 

B

 

 

 

 

 

I

 

2

10 A

 

 

 

 

 

 

J

0

 

 

 

 

 

 

 

K

2.5

 

 

 

 

 

 

 

 

L

 

 

 

 

 

 

 

 

M

 

 

 

 

 

 

 

 

N

 

 

 

T

 

 

 

O

 

3

 

6

 

S

R

Q

P

 

 

 

 

 

 

5

 

4

 

 

 

 

 

 

 

 

 

 

 

 

INSTRUCTIONS

 

 

 

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".

 

 

 

S0514R21JCPAF

LIGHT DUTY

COMMERCIAL

MICROWAVE OVENS

MODEL R-21JCA-F

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..)

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

TROUBLESHOOTING GUIDE

9

TEST PROCEDURE

10

TOUCH CONTROL PANEL

16

COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE

20

PICTORIAL DIAGRAM

27

CONTROL PANEL CIRCUIT

28

PRINTED WIRING BOARD

29

PARTS LIST

30

PACKING AND ACCESSORIES

34

SHARP CORPORATION

This document has been published to be used for after sales service only.

The contents are subject to change without notice.

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Sharp service manual Model R-21JCA-F