1
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 open.
(b) Make the following safety checks on all ovens to be serviced before activating the magnetron or other micro-
wave 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 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 .......................................................................................................................2
SPECIFICATIONS.......................................................................................................................................................................3
EXTERNAL VIEWS.....................................................................................................................................................................3
NAMES AND FUNCTION OF PARTS........................................................................................................................................4
CONTROL PANEL ......................................................................................................................................................................5
INTERLOCK MECHANISM FUNCTIONS AND ADJUSTMENTS .............................................................................................6
PRECAUTIONS FOR DISASSEMBLY AND REPAIR ...............................................................................................................8
DISASSEMBLY AND ASSEMBLY..............................................................................................................................................9
TROUBLE SHOOTING GUIDE ................................................................................................................................................17
MEASUREMENT ......................................................................................................................................................................23
COMPONENT TEST PROCEDURE ........................................................................................................................................25
WIRING DIAGRAM ...................................................................................................................................................................26
SCHEMATIC DIAGRAM ...........................................................................................................................................................27
EXPLODED VIEWS AND PARTS LIST ...................................................................................................................................29
PRINTED WIRING BOARD ......................................................................................................................................................32
P.C.B. CIRCUIT DIAGRAM ......................................................................................................................................................37
P.C.B. ASS’Y PART LIST .........................................................................................................................................................38
Summary of Contents for KOG-875T2S
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