Sharp R-520JK Service Manual

Also see for R-520JK: Installation manual Operation manual

R - 5 2 0 J KR- 520JWIn the interest of user-safety the oven should be restored to its originalcondition 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 andcurrent, contact with following parts may result in a severe,possibly fatal, electrical shock. (High Voltage Capacitor, HighVoltage Power Transformer, Magnetron, High Voltage Recti-fier Assembly, High Voltage Harness etc..)TABLE OF CONTENTSPagePRECAUTIONS TO BE OBSERVED BEFORE AND DURING SERVICING TOAVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY .................. INSIDE FRONT COVERBEFORE SERVICING ..................................................................................................... INSIDE FRONT COVERWARNING TO SERVICE PERSONNEL .............................................................................................................. 1MICROWAVE MEASUREMENT PROCEDURE .................................................................................................. 2FOREWORD AND WARNING ............................................................................................................................. 3PRODUCT SPECIFICATIONS ............................................................................................................................. 4GENERAL INFORMATION ................................................................................................................................. 4OPERATION ........................................................................................................................................................ 6TROUBLESHOOTING GUIDE ............................................................................................................................. 10TEST PROCEDURE ............................................................................................................................................ 11TOUCH CONTROL PANEL .................................................................................................................................. 21COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE .................................................................. 27PICTORIAL DIAGRAM ........................................................................................................................................ 34CONTROL UNIT CIRCUIT ................................................................................................................................... 35PRINTED WIRING BOARD ................................................................................................................................. 36PARTS LIST ........................................................................................................................................................ 37PACKING AND ACCESSORIES ......................................................................................................................... 41S94M244R520JER-520JKR-520JWMICROWAVE OVENMODELSSERVICE MANUALSHARP ELECTRONCS CORPORATIONThis document has been published to be used for aftersales service only.The contents are subject to change without notice.Service Headquarters: Sharp Plaza, Mahwah, New Jersey, 07430-2135R-520JK