2
PRECAUTIONS TO BE OBSERVED BEFORE AND
DURING SERVICING TO AVOID POSSIBLE
EXPOSURE TO EXCESSIVE MICROWAVE ENERGY
(a)Do not operate or allow the oven to be operated with the door opened.
(b)Make the following safety checks on all ovens to be serviced before activating the magnetron or other
micro-wave source, and make repairs if 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, and (5) evidence of dropping or abuse.
(c) Before turning on microwave power for any service test or inspection within the microwave generating
com-partments, check the magnetron, wave guide or transmission line, and cavity for proper
alignment, integrity, and connections.
(d)Any defective or misadjusted components in the interlock, monitor, door seal and microwave
generation and transmission 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.
TABLE OF CONTENTS
PROPER USE AND SERVICE PRECAUTIONS 3
SPECIFICATIONS 4
SCHEMATIC DIAGRAM OF FEATURES 5
INSTALLATION 6
OPERATION 7
MEASUREMENT OF THE MICROWAVE OUTPUT POWER 8
MICROWAVE RADIATION TEST 9
WIRING DIAGRAM 10
CIRCUIT DESCRIPTION 11
PRECATIONS FOR DISASSEMBLY AND REPAIR 13
DISASSEMBLY AND ASSEMBLY 14
INTERLOCK MECHANISM 19
TROUBLE SHOOTING GUIDE 21
COMPONENT TEST PROCEDURE 23
SAFETY INTERLOCK CONTINUITY TEST 24
EXPLODED AND PARTS LIST 25
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