Sharp R-1870 Manual de usuario descargar pdf

R-1870

R-1871

S91M173R1870E

OVER THE RANGE

MICROWAVE OVEN

MODELS R-1870/R-1871

This is a supplemental Service Manual for Models R-1870/R1871.

This model is quite similar to Base Model R-1850 (S/M# S6804R1850X//).

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

Model R-1870

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

COMPONENT TEST .............................................................................................................................................9

PICTORIAL DIAGRAM ........................................................................................................................................10

LSI UNIT CIRCUIT...............................................................................................................................................11

PARTS LIST ........................................................................................................................................................12

PACKING AND ACCESSORIES .........................................................................................................................18

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

SUPPLEMENTAL SERVICE MANUAL

1 2 3 4 5 6 ... 23 24

Indice de contenidos

Pagina 1 - SUPPLEMENTAL SERVICE MANUAL

R-1870R-1871S91M173R1870EOVER THE RANGEMICROWAVE OVENMODELS R-1870/R-1871This is a supplemental Service Manual for Models R-1870/R1871.This model is q

Pagina 2 - BEFORE SERVICING

8R-1870R-1871SCHEMATICNOTE: CONDITION OF OVEN1. DOOR CLOSED.2. CONVECTION PAD TOUCHED.3. DESIRED TEMP. TOUCHED.4. START PAD TOUCHED.Figure O-3. Oven S

Pagina 3 - WARNING TO SERVICE PERSONNEL

9R-1870R-1871PROCEDURELETTERCOMPONENT TESTG12CUSTOMHELPKITCHENTIMERPOWERLEVELKEEPWARMTURNTABLEON / OFFCONVECBROILFAN LIGHTPREHEATCLOCKSENSORREHEATSLOW

Pagina 4

10R-1870R-1871645123645123ABCDEFGHABCDEFGHFigure S-1. Pictorial DiagramHIGH VOLTAGECAPACITORH.V.RECTIFIERHIGH VOLTAGE COMPONENTSMAGNETRONPOWER TRANSFO

Pagina 5 - SERVICE MANUAL

11R-1870R-1871645123645123ABCDEFGHABCDEFGHFigure S-2. Touch Control Panel Circuit+–+–+–+–A5A1A3B1B3B5B7C1C3C9C7C5F3G12G11G10G 9G 8G 1 G 2 G 3 G 4 G 5

Pagina 6 - GENERAL INFORMATION

12R-1870R-1871PARTS LISTNote: The parts marked “∆∆∆∆∆” may cause undue microwave exposure.The parts marked “*” are used in voltage more than 250V. &q

Pagina 7 - OVEN DIAGRAM

13R-1870R-1871REF. NO. PART NO. § DESCRIPTION Q'TY CODED1-4 VHD11ES1///-1 J Diode (11ES1) 4 ABD20-32 VHD1SS270A/-1 J Diode (1SS270A) 13 AAD65 VHD

Pagina 8 - OPERATION

14R-1870R-1871REF. NO. PART NO. § DESCRIPTION Q'TY CODE4-14 PHOK-B013MRF0 M Latch hook 1 AG4-15 FANGTB003MRY0 M Unit mounting plate 1 AV4-16 P

Pagina 9

15R-1870R-1871HOW TO ORDER REPLACEMENT PARTSTo have your order filled promptly and correctly, please furnish the following information.1. MODEL NUMBER

Pagina 10 - RESISTOR

16R-1870R-1871OVEN AND CABINET PARTS645123645123ABCDEFGHABCDEFGH4-157-117-77-37-207-207-77-177-177-147-157-217-47-147-124-104-91-184-177-234-434-391-2

Pagina 11 - R KEY UNIT TEST

17R-1870R-1871645123645123ABCDEFGHABCDEFGHCONTROL PANEL PARTSMISCELLANEOUSDOOR PARTS5-24-345-35-85-55-45-65-15-955-95-73-23-33-47-73-43-13-2-23-2-33-

Pagina 12 - Figure S-1. Pictorial Diagram

R-1870R-1871PRECAUTIONS TO BE OBSERVED BEFORE ANDDURING SERVICING TO AVOID POSSIBLEEXPOSURE TO EXCESSIVE MICROWAVEENERGY(a) Do not operate or allow th

Pagina 13 - IC1 IZA719DR

18R-1870R-1871PACKING AND ACCESSORIES 2-14-3TURNTABLE TRAY TOP PADBOTTOM PADPACKING CASEACCESSORY PACKWRAP COVERNon-replaceable itemsDOOR PROTECTORGRE

Pagina 14 - PARTS LIST

19R-1870R-1871Notes

Pagina 15 - OVEN PARTS

20R-1870R-1871Notes

Pagina 16 - MISCELLANEOUS

21R-1870R-1871Notes

Pagina 17

Pagina 18 - OVEN AND CABINET PARTS

1R-1870R-1871WARNING TO SERVICE PERSONNELMicrowave ovens contain circuitry capable of pro-ducing very high voltage and current, contact withfollowing

Pagina 19 - DOOR PARTS

2R-1870R-1871MICROWAVE MEASUREMENT PROCEDUREA. Requirements:1) Microwave leakage limit (Power density limit): The power density of microwave radiation

Pagina 20 - PACKING AND ACCESSORIES

3R-1870R-1871SERVICE MANUALMICROWAVE OVENR-1870/R1871FOREWORDThis Manual has been prepared to provide Sharp Electronics Corp.Service Personnel with Op

Pagina 21

4R-1870R-1871ITEM DESCRIPTIONPower Requirements 120 Volts / 13.2 Amperes (Microwave), 13.2 Amperes (Convection)60 HertzSingle phase, 3 wire groundedP

Pagina 22

5R-1870R-1871NOTE:Some one-touch cooking featuresas "MINUTE PLUS" are disabled af-ter one minute when the oven is notused. These features ar

Pagina 23

6R-1870R-1871OPERATIONDESCRIPTION OF OPERATING SEQUENCEThe following is a description of component functionsduring oven operation.OFF CONDITIONClosing

Pagina 24

7R-1870R-1871Figure O-1. Oven Schematic - Off ConditionSCHEMATICNOTE: CONDITION OF OVEN1. DOOR CLOSED.2. CLOCK APPEARS ON DISPLAY.SCHEMATICNOTE: CONDI