2
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 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.
(c) Before turning on microwave power for any service test or inspection within the microwave gernerating
compartments, check the magnetron, wave guide or transmission line, and cavity for proper alignment,
intergrity, and connections.
(d) Any defective or misadjusted components in the interlock, monitor, door seal, and microwave gernera-
tion and transmission systems shall be repaired, or adjusted by procedures described in this manual
before the oven is released to the owner.
(e) A micrewave leakage check to verify compliance with the Federal Performance Standard should be per-
formed on each oven prior to release to the owner.
PROPER USE AND SERVICE PRECAUTIONS 3
SPECIFICATIONS 4
FEATURE DIAGRAM 5
CONTROL PANEL 6
INSTALLATION 7
OPERATION PROCEDURE 8
CONTROLS 9
INTERLOCK MECHANISM 21
PRECAUTIONS FOR DISASSEMBLY AND REPAIR 23
DISASSEMBLY AND ASSEMBLY 24
TROUBLE SHOOTING GUIDE 29
MEASUREMENT OF THE MICROWAVE OUTPUT POWER 36
MICROWAVE RADIATION TEST 37
COMPONENT TEST PROCEDURE 38
SAFETY INTERLOCK CONTINUITY TEST 39
WIRING DIAGRAM 40
CIRCUIT DESCRIPTION 43
PRINTED CIRCUIT BOARD 46
EXPLODED AND PARTS LIST 55
TABLE OF CONTENTS
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