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S/M No. : R131G2A001
Service Manual
Micro Wave Oven
Model: KOR-131G2A
KOR-131H2A
KOR-130A2A
DAEWOO ELECTRONICS CO., LTD.
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 power to the microwave oven 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, 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
SAFETY AND PRECAUTIONS ................................................................................................. 3
FOR SAFE OPERATION ............................................................................................................................... 3
FOR SAFE SERVICE PROCEDURES .......................................................................................................... 3
SPECIFICATIONS....................................................................................................................... 4
EXTERNAL VIEW ...................................................................................................................... 5
OUTER DIMENSION .................................................................................................................................... 5
FEATURE DIAGRAM ................................................................................................................................... 6
CONTROL PANEL ........................................................................................................................................ 7
INSTALLATION.......................................................................................................................... 10
OPERATIONS AND FUNCTIONS............................................................................................ 11
DISASSEMBLY AND ASSEMBLY ........................................................................................... 12
INTERLOCK MECHANISM AND ADJUSTMENT ............................................................... 19
TROUBLE SHOOTING GUIDE ................................................................................................ 20
MEASUREMENT AND TEST.................................................................................................... 24
MEASUREMENT OF THE MICROWAVE POWER OUTPUT .................................................................. 24
MICROWAVE RADIATION TEST .............................................................................................................. 25
COMPONENT TEST PROCEDURE ............................................................................................................. 26
WIRING DIAGRAM.................................................................................................................... 27
PRINTED CIRCUIT BOARD..................................................................................................... 28
CIRCUIT CHECK PROCEDURE.................................................................................................................. 28
P.C.B. CIRCUIT DIAGRAM ......................................................................................................................... 31
P.C.B. LOCATION NO .................................................................................................................................. 32
EXPLODED VIEW AND PARTS LIST .................................................................................... 33
DOOR ASSEMBLY ....................................................................................................................................... 33
CONTROL PANEL ASSEMBLY .................................................................................................................. 33
TOTAL ASSEMBLY...................................................................................................................................... 33
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SPECIFICATIONS
MODEL KOR-131G2A
POWER SUPPLY 120V~60Hz, SINGLE PHASE WITH GROUNDING
POWER MICROWAVE 1500W
CONSUMPTION
GRILL
COMBINATION
MICROWAVE ENERGY OUTPUT 1100W
MICROWAVE FREQUENCY 2450MHz
OUTSIDE DIMENSIONS (W X H X D) 563 x 318 x 418 mm (22.1 x 12.5 x 16.5 in.)
CAVITY DIMENSIONS (W X H X D) 380 x 246 x 386 mm (14.9 x 9.7 x 15.2 in.)
NET WEIGHT APPROX. 16.5 Kg ( 36.4 lbs.)
TIMER 99 min. 99 sec.
FUNCTION SELECTIONS MICROWAVE
POWER SELECTIONS 10 LEVELS
CAVITY VOLUME 1.3 Cu.Ft.