R-21FBSTM - Sharp Home Appliance Service Manual (repair manual). Page 3

R-21FBSTM/R-22FBSTM - 3

WARNING

MICROWAVE RADIATION

Personnel 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 themselves, or when they are damaged, loosened or
removed.

Never operate the Grill heater with the oven outer cabinet
removed.  (Because air flow is eliminated, and the excess heat
generated on adjacent components). It can cause permanent
damage or a fire.

®

  (R-21FBSTM/R-22FBSTM)

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.