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R-1874

SUPPLEMENTAL SERVICE MANUAL

TABLE OF CONTENTS

Page

PRECAUTIONS TO BE OBSERVED BEFORE AND DURING SERVICE TO

AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY ................... INSIDE FRONT COVER

BEFORE SERVICING ...................................................................................................... INSIDE FRONT COVER

MICROWAVE MEASUREMENT PROCEDURE.....................................................................................................1

WARNING TO SERVICE PERSONNEL..........................................................................................................3

FOREWORD..........................................................................................................................................................4

PRODUCT SPECIFICATIONS...............................................................................................................................5

GENERAL INFORMATION ...................................................................................................................................5

PICTORIAL DIAGRAM ..........................................................................................................................................7

CONTROL PANEL CIRCUIT ..................................................................................................................................8

PARTS LIST..........................................................................................................................................................9

PACKING AND ACCESSORIES .........................................................................................................................15

SHARP ELECTRONICS CORPORATION

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

Service Headquarters: Sharp Plaza, Mahwah, New Jersey, 07430-2135

OR:

SHARP CORPORATION

SHARP ELECTRONICS OF CANADA LTD.

Head Office: 335 Britannia Road East, Mississauga, Ontario L4Z 1W9

(905) 890-2100

This is a supplemental Service Manual for Model R-1874.

This model is quite similar to Base Model R-1855A (S/M# S01M177R1875E).

Use this supplemental manual together with the Base Model Service Manual for complete operation and service information

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..)

S52M187R1874E

OVER THE RANGE

MICROWAVE OVEN

MODEL R-1874

(IN USA):

(IN CANADA):

MIX CONV

DEFROST

SENSOR

TURNTABLE ON OFF COOK LBS OZ KG HELP

1 2 3 4 5 6 ... 19 20

Podsumowanie treści

Strona 1 - R-1874

R-1874SUPPLEMENTAL SERVICE MANUALTABLE OF CONTENTSPagePRECAUTIONS TO BE OBSERVED BEFORE AND DURING SERVICE TOAVOID POSSIBLE EXPOSURE TO EXCESSIVE MIC

Strona 2

8R-1874645123645123ABCDEFGHABCDEFGHFigure S-2. Touch Control Panel Circuit+–+–+–+–A5A1A3B1B3B5B7C1C3C9C5C7F3G12G11G10G 9G 8G 1 G 2 G 3 G 4 G 5 G 6 G 7

Strona 3

9R-1874PARTS LIST "§" MARK: PARTS DELIVERY SECTION.ELECTRIC PARTS1- 1 FH-DZB017MRY0 M High voltage rectifier assembly 1 AM1- 2 RC-QZA234WRE

Strona 4

10R-1874REF. NO. PART NO. § DESCRIPTION Q'TY CODEIC1 RH-IZA719DRE0 J LSI 1AWIC2 RH-IZA495DRE0 J IC 1ALQ1 VS2SB1238//-3 J Transistor (2SB1238) 1 A

Strona 5 - WARNING TO SERVICE PERSONNEL

11R-1874REF. NO. PART NO. § DESCRIPTION Q'TY CODE4-24 LBSHC0037WRE0 M Cord bushing 1 AB4-25 FDUC-B050MRK0 M Exhaust duct 1 AK4-26 MLEVPB016MRF0

Strona 6 - SERVICE MANUAL

12R-1874SCREWS,NUTS AND WASHERS7- 1 XCPSD40P08000 M Screw : 4mm x 8mm 2 AA7- 2 XOTSF40P10000 M Screw : 4mm x 10mm 4 AB7- 3 XCBSD30P08000 M Screw : 3m

Strona 7 - GENERAL INFORMATION

13R-1874645123645123ABCDEFGHABCDEFGHOVEN AND CABINETPARTS4-167-117-77-57-207-207-77-147-157-217-47-147-124-114-101-184-187-234-444-401-217-37-247-74-3

Strona 8 - OVEN DIAGRAM

14R-1874645123645123ABCDEFGHABCDEFGH6-66-86-96-106-116-16-1-16-1-26-1-36-1-76-1-56-1-66-1-45-34-355-45-65-55-75-25-15-95-83-23-37-73-33-13-2-33-2-13-2

Strona 9 - Figure S-1. Pictorial Diagram

15R-1874'96 SHARP CORP. (8K5.550E) Printed in U.S.APACKING AND ACCESSORIESTRAY HOLDERDAMPER HOLDERGREASE FILTER (x 2)2-1INSTALL MATERIAL ASSEMBLY

Strona 10 - IC1 IZA719DR

16R-1874NOTES

Strona 11 - PARTS LIST

17R-1874NOTES

Strona 12 - OVEN PARTS

R-1874PRECAUTIONS TO BE OBSERVED BEFORE ANDDURING SERVICING TO AVOID POSSIBLEEXPOSURE TO EXCESSIVE MICROWAVEENERGY(a) Do not operate or allow the oven

Strona 13 - MISCELLANEOUS

Strona 14

1R-1874MICROWAVE MEASUREMENT PROCEDURE (USA)A. Requirements:1) Microwave leakage limit (Power density limit): The power density of microwave radiation

Strona 15 - OVEN AND CABINET

2R-1874MICROWAVE MEASUREMENT PROCEDURE (CANADA)After adjustment of the door switches are completed individually or collectively, switch test and micro

Strona 16

3R-1874WARNING TO SERVICE PERSONNELMicrowave ovens contain circuitry capable of pro-ducing very high voltage and current, contact withfollowing parts

Strona 17 - Non-replaceable items

4R-1874SUPPLEMENTALSERVICE MANUALMICROWAVE OVENR-1874FOREWORDThis Manual has been prepared to provide Sharp Electronics Corp.Service Personnel with Op

Strona 18

5R-1874ITEM DESCRIPTIONPower Requirements120 Volts / 13.2 Amperes (Microwave), 13.2 Amperes (Convection) - [UL Rating]116 Volts / 13.0 Amperes (Micro

Strona 19

6R-18743-Pronged PlugGroundedReceptacle BoxGrounding Pin3-Pronged ReceptacleElectrical RequirementsThe oven is equipped with a 3-prong grounding plug.

Strona 20

7R-1874645123645123ABCDEFGHABCDEFGHFigure S-1. Pictorial Diagram645123645123ABCDEFGHABCDEFGHFigure S-1. Pictorial DiagramHIGH VOLTAGECAPACITORH.V.RECT