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R - 4 0 9 J S

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
KEY UNIT TEST .................................................................................................................................................... 6
TOUCH CONTROL PANEL ASSY..................................................................................................................7
CPU UNIT CIRCUIT ............................................................................................................................................. 12
PARTS LIST ........................................................................................................................................................ 13
PACKING AND ACCESSORIES ......................................................................................................................... 17

S44M236R409JE

R-409JS

MICROWAVE OVEN

MODEL

SUPPLEMENTAL SERVICE MANUAL

SHARP ELECTRONCS 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

R-409JS

This is a supplemental Service Manual for Microwave Oven model R-409JS. This model is quite similar to the base models
R408JK/JW; (S24M231R408JE).

This supplemental manual must be used in conjunction with the base model service manual for complete operation,
service, safety and replacement parts information.

Содержание R-409JS

Страница 1: ...ONT COVER WARNING TO SERVICE PERSONNEL 1 MICROWAVE MEASUREMENT PROCEDURE 2 FOREWORD AND WARNING 3 PRODUCT SPECIFICATIONS 4 GENERAL INFORMATION 4 KEY UNIT TEST 6 TOUCH CONTROL PANEL ASSY 7 CPUUNITCIRCUIT 12 PARTS LIST 13 PACKING AND ACCESSORIES 17 S44M236R409JE R 409JS MICROWAVEOVEN MODEL SUPPLEMENTAL SERVICE MANUAL SHARP ELECTRONCS CORPORATION This document has been published to be used for after ...

Страница 2: ...transmission systems shall be repaired replaced or adjusted by procedures described in this manual before the oven is released to the owner e A microwave leakage check to verify compliance with the Federal Performance Standard should be performed on each oven prior to release to the owner BEFORE SERVICING Before servicing an operative unit perform a microwave emission check as per the Microwave Me...

Страница 3: ...tor 4 Disconnect the leads to the primary of the power transformer 5 Ensure that the leads remain isolated from other components and oven chassis by using insulation tape 6 After that procedure reconnect the power supply cord When the testing is completed 1 Disconnect the power supply cord and then remove outer case 2 Open the door and block it open 3 Discharge high voltage capacitor 4 Reconnect t...

Страница 4: ...the oven cavity The water container shall be a low form of 600 ml 20 oz beaker with an inside diameter of approx 8 5 cm 3 1 2 in and made of an electrically nonconductive material such as glass or plastic The placing of this standard load in the oven is important not only to protect the oven but also to insure that any leakage is measured accurately 4 Set the cooking control on Full Power Cooking ...

Страница 5: ... closed B The door brackets and hinges are not defective C The door packing is not damaged D The door is not deformed or warped E There is no other visible damage with the oven Servicing and repair work must be carried out only by trained service personnel DANGER Certain initial parts are intentionally not grounded and present a risk of electrical shock only during servicing Service person nel Do ...

Страница 6: ...alresponsibilityandobligationofthecustomertocontact SPECIFICATION ITEM DESCRIPTION PowerRequirements 120 Volts 14 0 Amperes 1600 watts 60 Hertz Single phase 3 wire grounded PowerOutput 1100 watts IEC TEST PROCEDURE Operatingfrequencyof2450MHz CaseDimensions Width 21 21 32 Height 12 3 8 Depth 18 7 16 Cooking Cavity Dimensions Width 15 23 32 Height 9 21 32 1 6 Cubic Feet Depth 17 7 8 ControlCompleme...

Страница 7: ...oven will not operate unless the door is securely closed 3 Removable turntable support 4 Removable turntable The turntable will rotate clockwise or counterclockwise 5 Oven lamp It will light when oven is operating or door is opened 6 Oven door with see through window 7 Ventilation openings Rear 8 Auto Touch control panel 9 Time display Digital display 99 minutes 99 seconds 10 Wave guide cover 11 P...

Страница 8: ...t When the pad is released the ohmmeter should indicate open circuit If incorrect readings are obtained the key unit is faulty and must be replaced About the other pads the above method may be used 5 Reconnect all leads removed from components during testing 6 Re install the outer case cabinet 7 Reconnect the power supply cord after the outer case is installed 8 Run the oven and check all function...

Страница 9: ...rcuit Acircuittodrivethebacklight LightemittingdiodesLD1 LD4 TOUCHCONTROLPANELASSEMBLY OUTLINEOFTOUCHCONTROLPANEL The touch control section consists of the following units 1 Key Unit 2 Control Unit The Control Unit consists of Power Unit and LSI Unit Theprincipalfunctionsoftheseunitsandthesignalscommu nicated among them are explained below KeyUnit Thekeyunitiscomposedofamatrix signalsgeneratedinth...

Страница 10: ...form voltage is delivered to the RY1 driving circuit and RY2 control circuit 17 P51 OUT Terminal not used 18 P50 OUT Magnetron high voltage circuit driving signal To turn on and off the cook relay RY2 The signalsholds L levelduringmicrowavecook ing and H level while not cooking In other cooking modes variable cooking the signal turns to H level and L level in repetition according to the power leve...

Страница 11: ...to P70 P71 P41 P45 P47 and AN3 terminal while one of G7 line keys on key matrix is touched 35 P25 OUT Key strobe signal Signal applied to touch key section A pulse signal is input to P70 P71 P41 P45 P47 and AN3 terminal while one of G6 line keys on key matrix is touched 36 P24 OUT Key strobe signal Signal applied to touch key section A pulse signal is input to P70 P71 P41 P45 P47 and AN3 terminal ...

Страница 12: ...G 20 SEG10 62 SEG 10 SEG21 51 SEG 21 73 VCC IN Power source voltage GND 0V 74 VREF IN A D converter power source voltage GND 0V The power source voltage to drive the A D converter Connected to GND 75 AVSS IN A D converter power source voltage 5 0V The power source voltage to drive the A D converter 76 COM3 OUT Terminal not used 77 COM2 OUT Common data signal Connected to LCD signal COM1 78 COM1 OU...

Страница 13: ...oth not to scratch 10 Attach the ribbon cable to the control panel frame rear side 11 Place the edge of the membrane switch s ribbon cable on the lower portion of the liquid crystal display 12 Insert the rubber connector into the long slit on the control panel frame 13 Reinstall the control unit to the control panel frame with the three 3 screws NOTE Do not touch the contact surface of the ribbon ...

Страница 14: ...12 R 409JS 6 4 5 1 2 3 6 4 5 1 2 3 A B C D E F G H A B C D E F G H Figure S 3 Control Unit Circuit ...

Страница 15: ...ly 1 AN 3 3 FUNTKB406MRE0 M Key sheet assy 1 AS 3 4 FDECAB050MRK0 M Open button assy 1 AM 3 5 MSPRRC045WRE0 M Open button spring 1 AA 3 6 XEPSD30P08XS0 M Screw 3mm x 6mm 5 AB 3 7 HDECAB197MRP0 M Upper deco 1 AF 3 8 HDECAB198MRP0 M Lower deco 1 AF 3 9 QCNC A020WRZZ M Rubber connector 1 AC 3 10 HPNLCB179MRF0 M Key fixing mold 1 AL 3 11 PSHEPA900WREZ M LED sheet 1 AG 3 12 RLCDSA107DRZZ M LCD 1 AG 3 1...

Страница 16: ... wire harnes 1 AT 6 2 FROLPB025MRK0 M Turntable support 1 AN 6 3 NTNT A108WREZ M Turntable tray 1 AM 6 4 TCAUAB050MRR0 M Monitor caution label 1 AA 6 5 TCAUAB053MRR0 M DHHS Screw caution label 1 AB 6 6 TINSEB378MRK0 M Operation manual 1 AD 6 7 QW QZB016MRE0 M High voltage wire A 1 AC SCREWS NUTSANDWASHERS 7 1 LX BZA041WRE0 M Special screw 5 AA 7 2 LX CZ0052WRE0 M Special screw 2 AA 7 3 XHTSD40P12R...

Страница 17: ... B C D E F G H OVEN AND CABINET PARTS 2 3 4 7 6 5 1 4 4 6 4 8 4 9 6 3 6 2 2 1 7 5 1 9 4 10 7 2 7 2 7 4 4 3 1 10 1 7 7 3 7 6 7 5 7 6 4 2 7 4 1 8 7 1 1 6 1 6 4 4 7 1 4 1 1 1 1 2 2 2 2 2 2 2 2 2 7 4 7 4 4 11 7 4 6 4 1 5 1 11 7 4 7 7 7 4 7 7 1 5 1 3 4 5 7 4 ...

Страница 18: ... 2 3 A B C D E F G H A B C D E F G H CONTROL PANEL PARTS Actual wire harness may be different from illustration 6 7 6 1 3 3 3 7 3 9 3 6 3 5 3 4 3 12 3 10 3 1 3 2 3 11 3 8 5 3 5 2 5 7 5 6 5 5 5 4 5 1 5 8 3 13 MISCELLANEOUS DOOR PARTS ...

Страница 19: ...ESSORIES DOOR PROTECTION SHEET PLASTIC BAG PACKING CASE TOP PAD ASSEMBLY INTO THE OVEN CAVITY 6 3 TURNTABLE TRAY 6 6 OPERATION MANUAL BOTTOM PAD ASSEMBLY TRAY HOLDER 6 2 TURNTABLE SUPPORT ON TOP OF THE OVEN Non replaceable items ...

Страница 20: ...BY SHARP CORPORATION ALL RIGHTS RESERVED No part of this publication may be repro duced stored in retrieval systems or trans mitted in any form or by any means elec tronic mechanical photocopying recording orotherwise withoutpriorwrittenpermission of the publisher ...

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