Microwave Oven; Before Servicing - Sharp R-1874TYA Supplemental Service Manual

U P D AT E
SUPPLEMENTAL SERVICE MANUAL
This Manual has been prepared to provide Sharp Electronics Corp. Service Personnel with Operation and Service Informa-
tion for the SHARP OVER THE RANGE MICROWAVE OVEN.
It is recommended that service personnel carefully study the entire text of this manual so that they will be qualified to render
satisfactory customer service.
Check the interlock switches and the door seal carefully. Special attention should be given to avoid electrical shock and
microwave radiation hazard.
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 personnel.
Certain initial parts are intentionally not grounded and present a risk of electrical shock only during servicing.
Service personnel - Do not contact the following parts while the appliance is energized;
High Voltage Capacitor, Power Transformer, Magnetron, High Voltage Rectifier Assembly, High Voltage Harness;
If provided, Vent Hood, Fan assembly, Cooling Fan Motor.
All the parts marked "*" on parts list are used at voltages more than 250V.
Removal of the outer wrap gives access to voltage above 250V.
All the parts marked "∆" on parts list may cause undue microwave exposure, by themselves, or when they are dam-
aged, loosened or removed.
Before servicing an operative unit, perform a microwave emission check as per the Microwave Measurement
Procedure outlined in this service manual.
If microwave emissions level is in excess of the specified limit, contact SHARP ELECTRONICS OF CANADA
LTD. immediately @(800) 837-0256.
TO ACCESS INTERNET:
If the unit operates with the door open, service person should 1) tell the user not to operate the oven and 2)
contact SHARP ELECTRONICS OF CANADA LTD. and NHW CANADA immediately.
Service personnel should inform SHARP ELECTRONICS OF CANADA LTD. of any certified unit found with
emissions in excess of 4mW/cm
OVER THE COUNTER
FOREWORD

BEFORE SERVICING

http://www.sharp.ca/contact-callus.aspx
. The owner of the unit should be instructed not to use the unit until the oven
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SHARP ELECTRONICS OF CANADA LTD. HEAD OFFICE
335 BRITANNIA ROAD EAST
MISSISSAUGA ON L4Z 1W9

MICROWAVE OVEN

R-1874TYA
WARNING
DANGER
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R-1874TYA