Service manual

R-1880LS/LST

PRECAUTIONS TO BE OBSERVED BEFORE AND

DURING SERVICING TO AVOID POSSIBLE EXPO-

SURE TO EXCESSIVE MICROWAVE ENERGY

(a) Do not operate or allow the oven to be operated with the door open.

(b) Make the following safety checks on all ovens to be serviced before activating the magnetron or other microwave

source, and make repairs as necessary: (1) interlock operation (2) proper door closing, (3) seal and sealing surfaces

(arcing, wear, and other damage), (4) damage to or loosening of hinges and latches, (5) evidence of dropping or

abuse.

ments, check the magnetron, wave guide or transmission line, and cavity for proper alignment, integrity, and con-

nections.

(d) Any defective or misadjusted components in the interlock, monitor, door seal, and microwave generation and trans-

mission systems shall be repaired, replaced, or adjusted by procedures described in this manual before the oven is

released to the owner.

(e) A microwave leakage check to verify compliance with the Federal Performance Standard should be performed on

each oven prior to release to the owner.

BEFORE SERVICING

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 CORPORA-

TION immediately @1-800-237-4277.

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 CORPORATION and Food and Drug Administration's Center for Devices

and Radiological Health immediately.

Service personnel should inform SHARP ELECTRONICS CORPORATION of any certiﬁed unit found with

emissions in excess of 4mW/cm

. The owner of the unit should be instructed not to use the unit until the oven

has been brought into compliance.