Daewoo KOR-616T2S, Service Manual

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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 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 micro-
wave generating 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 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.
PROPER USE AND SERVICE PRECAUTIONS ....................................................................................................2
SPECIFICATIONS ...................................................................................................................................................3
FEATURE DIAGRAM...............................................................................................................................................4
EARTHING INSTRUCTIONS ..................................................................................................................................5
INSTALLATION ........................................................................................................................................................5
OPERATION PROCEDURES .................................................................................................................................6
CONTROLS .............................................................................................................................................................7
INTERLOCK MECHANISM FUNCTIONS AND ADJUSTMENTS........................................................................17
MEASUREMENT OF THE MICROWAVE OUTPUT POWER..............................................................................19
MICROWAVE RADIATION TEST..........................................................................................................................20
WIRING DIAGRAM................................................................................................................................................21
CIRCULT DESCRIPTION ......................................................................................................................................23
SAFETY PRECAUTIONS FOR DISASSEMBLY AND REPAIR ...........................................................................26
DISASSEMBLY AND ASSEMBLY.........................................................................................................................27
TROUBLE SHOOTING GUIDE .............................................................................................................................32
COMPONENT TEST PROCEDURE.....................................................................................................................37
SAFETY INTERLOCK CONTINUITY TEST .........................................................................................................38
PRINTED WIRING BOARD...................................................................................................................................39
CIRCUIT CHECK PROCEDURE .....................................................................................................................39
P.C.B. CIRCUITS DIAGRAM............................................................................................................................45
PRINTED CIRCUITS BOARD..........................................................................................................................47
P.C.B. LOCATION NO ......................................................................................................................................49
EXPLODED AND PARTS LIST .............................................................................................................................51
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