1
SAFETY PRECAUTIONS
Consult this service manual for proper service procedures to ensure continued
safe operation and for precautions to be taken to avoid possible exposure to
PRECAUTIONS TO BE OBSERVED
BEFORE AND DURING SERVICING
TO AVOID POSSIBLE EXPOSURE TO
EXCESSIVE MICROWAVE ENERGY
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
c) Before turning on microwave power for any service test or inspection
within the microwave generating compartments, check the magnetron,
wave guide or transmission line, and cavity for proper alignment, integrity,
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
e) A microwave leakage check to verify compliance with the Federal
Performance Standard should be performed on each oven prior to release
CONTENTS
SAFETY PRECAUTIONS
CAUTION
2
INSTALL ATION2
SERVICE INFORMATION3
CIRCUIT DESCRIPTION3
TOOLS AND MEASURING INSTRUMENTS3
MICROWAVE LEAKAGE TEST3
DISASSEMBLY AND ADJUSTMENT
4
4
4
4
5
-voltage transformer removal 5
5
-voltage capacitor and diode removal5
5
5
6
6
INTERLOCK CONTINUITY TEST6
6
6
6
COMPONENT TEST PROCEDURE7
TROUBLESHOOTING9
EXPLODED VIEW AND SPARE PARTS LIST12
WIRING DIAGRAM12
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