R-90GCK (serv.man3). Servicing, cautions and warnings - Sharp Home Appliance Service Manual (repair manual). Page 2

1

This Manual has been prepared to provide Sharp Corp. Service
engineers with Operation and Service Information.

It is recommended that service engineers carefully study the
entire text of this manual, so they will be qualified to render
satisfactory customer service.

Never operate the oven until the following points are en-
sured.
(A) The door is tightly 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 not any other visible damage with the oven.

Servicing and repair work must be carried out only by
trained service engineers.

All the parts marked "*" on parts list are used at voltages
more than 250V.

Removal of the outer wrap gives access to potentials above
250V.

All the parts marked "

∆

" on parts list may cause undue

microwave exposure, by themselves, or when they are
damaged, loosened or removed.

TEST PROCEDURE

SERVICING AND
TROUBLESHOOTING CHART

FUNCTION OF IMPORTANT
COMPONENTS

OPERATING SEQUENCE

APPEARANCE VIEW

PRODUCT SPECIFICATIONS

WIRING DIAGRAM

PARTS LIST

MICROWAVE MEASUREMENT

CONTROL PANEL ASSEMBLY

COMPONENT REPLACEMENT
 AND ADJUSTMENT PROCEDURE