R-4G75M (serv.man7). Complete - Sharp Home Appliance Service Manual (repair manual). Page 3

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GENERAL INFORMATION

PRODUCT SPECIFICATIONS

APPEARANCE VIEW

OPERATING SEQUENCE

FUNCTION OF IMPORTANT
COMPONENTS

SERVICING AND
TROUBLESHOOTING CHART

TEST PROCEDURE

TOUCH CONTROL PANEL

COMPONENTS REPLACEMENT
AND ADJUSTMENT PROCEDURE

MICROWAVE MEASUREMENT
TEST DATA AT A GLANCE

WIRING DIAGRAM

PARTS LIST

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.

Service engineers should not be exposed to the microwave
energy which may radiate from the magnetron or other
microwave generating devices if it is improperly used or
connected. All input and output microwave connections,
waveguides, flanges and gaskets must be secured. Never
operate the device without a microwave energy absorbing
load attached. Never look into an open waveguide or antenna
while the device is energized.

WARNING

Never operate the oven until the following points are ensured.
(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 themseleves, or when they are
damaged, loosened or removed.