SPECIFICATIONS SPECIFICATION ITEM KOR-61A50S/2S KOR-81A50S/2S POWER SUPPLY 230V 50Hz, SINGLE PHASE WITH EARTHING POWER CONSUMPTION 1200W 1350W MICRO WAVE OUTPUT POWER 800W 900W FREQUENCY 2450 MHz OUTSIDE DIMENSIONS (WXHXD) 465 X 274 X 374 mm 495 X 289 X 404 mm CAVITY DIMENSIONS(WXHXD) 290 X 200 X 290 mm 320 X 225 X 330 mm...
FEATURES DIAGRAM ¤ Door Hook - When the door is closed, it will automatically shut. If the door is opened while the oven is operating, the magnetron will immediately stop operating. ¤Ł Door Seal - Door seal maintains the microwave energy within the oven cavity and prevents micro leakage.
INSTALLATION 1. Steady, flat location This microwave oven should be set on a steady, flat surface. 2. Leave space behind and side All air vents should be kept a clearance. If all vents are covered during operation, the oven may overheat and, eventually, cause oven failure.
MEASUREMENT OF THE MICR O WAVE OUTPUT PO WER Microwave output power can be checked by indirectly measuring the temperature rise of a certain amount of water exposed to the microwave as directed below. Procedure 1. Microwave power output measurement is made with the microwave oven supplied at rated voltage and operated at its maximum microwave power setting with a load of 1,000±5cc of potable water.
CIRCUIT DESCRIPTION 1. When the food is placed in the oven cavity and door is closed. • The contact of the interlock monitor switch open (NO). • The contacts of the primary interlock switch and secondary interlock switch close. Primary Timer Interlock 12A Fuse...
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HIGH VOLTAGE TRANSFORMER H.V. FUSE H.V. CAPACITOR 2S TYPE KOR-65A52S KOR-81A52S MAGNETRON H.V. DIODE Fig.2 3. When the door is opened during cooking. • Primary interlock switch and secondary interlock switch open to cut off the primary voltage to the high voltage transformer to stop microwave oscillation.
PRECAUTIONS FOR DISASSEMBLY AND REPAIR – Cautions to be observed when trouble shooting. Unlike many other appliances, the microwave oven is a high-voltage, high-current equipment. It is completely safety during normal operation. However, carelessness in servicing the oven can result in an electric shock or possible danger from a short circuit.
DISASSEMBLY AND ASSEMBLY 1. To remove cabinet. Remove three screws on cabinet back. 2. To remove door assembly. 1) Remove two screws ¤ which secure the stopper hinge top. 2) Remove the stopper hinge top ¤Ł and door assembly ¤Ø from top plate of cavity. 3) Remove the stopper hinge top ¤Łfrom door assembly.
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(1) Remove the gasket door(A06) from door painting ass’y (A04) (2) Remove the barrier screen inner(A05) from door painting ass’y(A04). (3) Remove the hook spring(A08) and the hook(A07). (4) Remove the hinge stopper top ass’y(A03). (5) Remove the door frame(A01) from door painting ass’y(A04). (6) Remove the barrier screen outer(A02).
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5. To remove control panel parts. (1) Remove the screw which secure the control panel push up two snap fits and draw forward the control panel assembly. (2) Remove the screw (B05) which secure the VPC coupler(B04). (3) Pull out the VPC coupler(B04), VPC knob(B01) and the flat spring (B03) from the control panel(B02). (4) Remove two screws(B08) which secure the timer ass’y(B07).
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6. To remove high voltage capacitor. (1) Remove a screw ¤ which secure the grounding ring terminal of the H.V. diode ¤Ł and the capacitor holder ¤Ø . (2) Remove the H.V. diode ¤Ł from the capacitor holder ¤Ø . (3) Reverse the above steps for reassembly.
INTERLOCK MECHANISM The door lock mechanism is a device which ahs been specially designed to completely eliminate microwave radiation when the door is opened during operation, and thus to perfectly prevent the danger resulting from the leakage of microwave. (1) Primary interlock switch When the door is closed, the hook locks the oven door.
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(2) Secondary interlock switchand interlock monitor switch When the door is closed, the hook pushes the push lever down ward, the push lever pressed the button of the monitor interlock switch to bring it under “off”, condition and presses the button of the secondary interlock switch to biring it under “on”, condition.
H.V.T. Thermal cut-out continuity Outlet has Check continuity of (KOR-61A50S, KOR-81A50S) Replace (KOR-61A50S, KOR-81A50S) Proper voltage H.V.T. Thermal cut-out. H.V.T. Thermal cut-out H.V. FUSE H.V. FUSE (KOR-61A52S, KOR-81A52S) (KOR-61A52S, KOR-81A52S) continuity Check continuity Replace Power supply cord. of power supply cord.
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Does the fan motor when you shut the door and turn the timer? Replace or repair Does the oven lamp light? oven lamp, Does the turntable turn? turntable motor. Replace Check continuity NO microwave continuity magnetron of filament of oscillation. magnetron *Do not operate when you check this continuity.
COMPONENT TEST PROCEDURE 1. High voltage is present at the high voltage terminal of the high voltage transformer during any cooking cycle. 2. It is neither necessary nor advisable to attempt measurement of the high voltage. 3. Before touching any oven components or wiring, always unplug the oven from its power source and discharge the capacitor (see page 14).
SAFETY INTERLOCK CONTINUITY TEST • Disconnect the oven from the power supply. • You can test continuity of safety interlocks and monitor switch by using switch tester or ohmmeter. • The switch operation is checked by the lamp on/off of resistance zero/unlimited. •...
EXPLODED AND PARTS LIST 1. Door Assembly DOOR AS : 3511707990(KOR-61A5) 3511708750(KOR-81A5) REF NO. PART NAME PART CODE DESCRIPTION Q’TY REMARKS 3512202050 KOR-61A5 FRAME DOOR ABS H-2938 XR-401 3512202250 KOR-81A5 3517003070 KOR-61A5 BARRIER-SCREEN *O PETP T0.188 3517003160 KOR-81A5 STOPPER HINGE *T AS 3515201500 KOR-61150S 3511706100...
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2. Control Panel Ass’y C-PANEL AS : 3516718500(KOR-61A5) 3516911860(KOR-81A5) REF NO. PART NAME PART CODE DESCRIPTION Q’TY REMARKS KNOB VPC 3513402680 ABS H-2938 XR-401 3516709860 KOR-61A5 CONTROL-PANEL ABS H-2938 XR-401 3516710140 KOR-81A5 SPRING FLAT 3515101600 SUS 301 T0.5 COUPLER VPC KNOB 3517400500 SCREW TAPPING 7122401211...
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