SUPPLEMENTAL SERVICE MANUAL
This is a supplemental Service Manual and is quite similar to the base models KB-3300JS/JK/JW; (S74R243KB330J). This
supplemental manual must be used in conjunction with the base model service manual for complete operation, service, safety
and replacement parts information.
WARNING TO SERVICE PERSONNEL:
This service manual is intended for use by persons having electrical and mechanical training and a level of
knowledge of these subjects generally considered acceptable in the appliance repair trade. Sharp Electronics
Corporation cannot be responsible, nor assume any liability, for injury or damage of any kind arising from the
use of this manual.
Microwave ovens contain circuitry capable of producing very high voltage and current. Contact with the following
parts may result in a severe, possibly fatal, electrical shock. (High Voltage Capacitor, High Voltage Power
Transformer, High Voltage Rectifier and Heat sink etc., and Magnetron, High Voltage Harness etc..)
BEFORE SERVICING ...................................................................................................... INSIDE FRONT COVER
WARNING TO SERVICE PERSONNEL ............................................................................................................... 1
FOREWORD AND WARNING ................................................................................................................................5
PRODUCT SPECIFICATIONS ............................................................................................................................... 6
POWER CONNECTION .........................................................................................................................................8
ANTI-TIP DEVICE ............................................................................................................................................... 10
CONTROL LAYOUT ............................................................................................................................................ 11
SCHEMATICS ..................................................................................................................................................... 12
TOUCH CONTROL PANEL ASSEMBLY ............................................................................................................. 16
WIRING DIAGRAMS ........................................................................................................................................... 33
PRINTED WIRING BOARDS ............................................................................................................................... 39
PARTS LIST ........................................................................................................................................................ 44
PACKING AND ACCESSORIES ......................................................................................................................... 55
SHARP ELECTRONICS CORPORATION
This document has been published to be used for after sales service only. The contents are subject to change without notice.
FREE STANDING RANGE
WITH MICROWAVE DRAWER
MODELS
KB-3411JS pictured
TABLE OF CONTENTS
1
KB-3411JS
KB-3411JK
KB-3411JW
KB-3411JS
KB-3411JK
KB-3411JW
S25R247KB341J
Page