Sharp R-1481 - Manual

Sharp R-1481

Sharp R-1481 – Manual, read for free online in PDF format. We hope this helps you resolve any issues you may have. If you have further questions, please contact us through the contact form.

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Table of Contents:

  • Page 2 – performed on each oven prior to releasing oven to the owner.; BEFORE SERVICING; . The owner of the unit should be instructed not to use the unit
  • Page 3 – WARNING TO SERVICE PERSONNEL; Before Servicing; Disconnect the power supply cord; After repairing; Reconnect all leads removed from components during
  • Page 4 – MICROWAVE MEASUREMENT PROCEDURE; should not exceed 1mW/cm
  • Page 5 – SHARP ELECTRONICS CORPORATION; SERVICE MANUAL; OVER THE RANGE; MICROWAVE OVEN; DANGER
  • Page 6 – PRODUCT SPECIFICATION; GROUNDING INSTRUCTIONS
  • Page 7 – OVEN DIAGRAM; It will light when oven is operating or door is open.
  • Page 8 – CONTROL PANEL; OPERATION; DESCRIPTION OF OPERATING SEQUENCE; OFF CONDITION; The display will show; COOKING CONDITION; The contacts of relays are closed and components; BREAKFAST
  • Page 10 – HORIZONTAL VENTING; VENTILATION METHODS HOT AIR EXHAUST
  • Page 12 – DESCRIPTION AND FUNCTION OF COMPONENTS; DOOR OPEN MECHANISM; CAUTION: BEFORE REPLACING A BLOWN MONITOR; TURNTABLE MOTOR; As the door goes to a closed position, the monitor switch
  • Page 13 – TROUBLESHOOTING GUIDE; STIRRER MOTOR
  • Page 15 – TEST PROCEDURES
  • Page 16 – Reconnect all leads removed from components during testing.
  • Page 17 – AT ROOM TEMPERATURE, REPLACE THERMAL CUT-OUT OR TEMPERATURE FUSE.
  • Page 18 – the outer case is installed.
  • Page 19 – PROCEDURE; TOUCH CONTROL PANEL ASSEMBLY TEST
  • Page 23 – TOUCH CONTROL PANEL ASSEMBLY; ) Synchronizing Signal Circuit
  • Page 24 – DESCRIPTION OF LSI; Signal; Heating constant compensation terminal.; Magnetron high-voltage circuit driving signal.; Hood lamp driving signal.
  • Page 27 – SERVICING
  • Page 28 – Don’t let the wire leads touch to the followiong parts; WARNING FOR WIRING; and transmission assembly.; WITHOUT REMOVING THE OVEN FROM THE WALL; louver to the oven cavity with the outer case cabinet.; Push
  • Page 30 – HOOD FAN THERMAL CUT-OUT REMOVAL
  • Page 31 – COOLING FAN MOTOR REMOVAL; Make sure that the axis of the shaft is not slanted.
  • Page 32 – Shaft
  • Page 33 – NOTES FOR NEW CONTROL UNIT REPLACEMENT; POSITIVE LOCK; Positive lock
  • Page 34 – DOOR REPLACEMENT; Note: When the individual parts are replaced, refer to
  • Page 35 – DOOR DISASSEMBLY
  • Page 36 – HIGH VOLTAGE COMPONENTS
  • Page 38 – DIP
  • Page 39 – PARTS LIST; DESCRIPTION
  • Page 40 – OVEN PARTS
  • Page 41 – MISCELLANEOUS; HOW TO ORDER REPLACEMENT PARTS
  • Page 42 – OVEN AND CABINET PARTS
Loading the manual

R-1480
R-1481
R-1482

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 following parts may result in a severe,
possibly fatal, electrical shock. (High Voltage Capacitor, High
Voltage Power Transformer, Magnetron, High Voltage Recti-
fier 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 ............................................................................................................................ 11
TEST PROCEDURE ............................................................................................................................................ 12
TOUCH CONTROL PANEL ASSEMBLY ............................................................................................................ 21
COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE ................................................................ 26
PICTORIAL DIAGRAM ........................................................................................................................................ 34
CONTROL PANEL CIRCUIT ............................................................................................................................... 35
PRINTED WIRING BOARD ................................................................................................................................. 36
PARTS LIST ........................................................................................................................................................ 37
PACKING AND ACCESSORIES ......................................................................................................................... 42

S3807R1480X//

R-1480
R-1481
R-1482

OVER THE RANGE

MICROWAVE OVEN

MODELS

SERVICE MANUAL

SHARP CORPORATION

This document has been published to be used for after
sales service only.
The contents are subject to change without notice.

1

2

3

4

5

6

7

8

9

0

CUSTOM HELP

1 Coffee/tea
2 Roll/muffin, fresh
3 Roll/muffin, frozen
4 Hot cereal
5 Scrambled eggs

1 Dinner plate
2 Pasta/casserole
3 Frozen entree
4 Frozen snack
5 Pizza, slice

1 Baked potatoes
2 Fresh vegetables
3 Frozen vegetables
4 Rice
5 Ground meat

POPCORN

COMPU DEFROST

POWER

LEVEL

KITCHEN TIMER

CLOCK

MINUTE

PLUS

TURNTABLE

ON/OFF

STOP

CLEAR

START

TOUCH ON

WORK

LIGHT

NIGHT

LIGHT

FAN

HI/LO

BREAKFAST

COMPU COOK

SNACKS &
REHEAT

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Summary

Page 2 - performed on each oven prior to releasing oven to the owner.; BEFORE SERVICING; . The owner of the unit should be instructed not to use the unit

R-1480R-1481R-1482 PRECAUTIONS TO BE OBSERVED BEFORE ANDDURING SERVICING TO AVOID POSSIBLEEXPOSURE TO EXCESSIVE MICROWAVEENERGY (a) Do not operate or allow the oven to be operated with the door open.(b) Make the following safety checks on all ovens to be serviced before activating the magnetron or o...

Page 3 - WARNING TO SERVICE PERSONNEL; Before Servicing; Disconnect the power supply cord; After repairing; Reconnect all leads removed from components during

1 R-1480R-1481R-1482 WARNING TO SERVICE PERSONNEL Microwave ovens contain circuitry capable of pro-ducing very high voltage and current, contact withfollowing parts may result in a severe, possiblyfatal, electrical shock. (Example) High Voltage Capacitor, High Voltage Power Trans-former, Magnetron, ...

Page 4 - MICROWAVE MEASUREMENT PROCEDURE; should not exceed 1mW/cm

2 R-1480R-1481R-1482 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/cm 2 at any point 5cm or more from the external surface of the oven, measured prior to ac...

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