Daewoo KOR-61155 manuale d’uso

Ser vice Manual Micr owave Oven KOR-6115 5 KOR-61151 DAEWOO ELECTRONICS CO., L TD.[...]

2 PRECAUTIONS T O BE OBSERVED BEFORE AND DURING SERVICING T O A VOID POSSIBLE EXPOSURE T O EXCESSIVE MICROW A VE ENERGY (a) Do not operate or allow the oven to be operated with the door open. (b) Mark the following safety checks on all ovens to be serviced before activating the magnetron or other micro- wave source, and make repairs as necessary: ([...]

3 PROPER USE AND SERVICE PRECAUTIONS CAUTION : THIS DEVICE IS TO BE SERVICED ONLY BY PROPERLY QUALIFIED SERVICE PERSONNEL. CONSULT THE SERVICE MANUAL FOR PROPER SERVICE PROCEDURES TO ASSURE CONTINUED SAFETY OPERATION AND FOR PRECAUTIONS TO BE TAKEN TO AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY. 1. For Safe Operation Damage that allows th[...]

4 SPECIFICA TIONS ITEM SPECIFICATION POWER SUPPLY 120V~60Hz, SINGLE PHASE WITH EARTHING POWER CONSUMPTION 920 W MICROWAVE OUTPUT POWER 600 W (IEC 705) (FULL MICROWAVE POWER) FREQUENCY 2450 MHz OUTPUT DIMENSIONS (W X H X D) 465 X 274 X 360 mm (18.3 X 10.8 X 14.2 in.) CAVITY DIMENSIONS (W X H X D) 290 X 200 X 290 mm (11.4 X 7.9 X 11.4 in) NET WEIGHT [...]

¤ Safety Interlock System ¤Ł Door Viewing Screen - Allows viewing of food. The screen is designed so that light can pass through, but not the microwave. ¤Ø 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. ¤Œ Oven Cavity ¤º Door[...]

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. 3 Away from radio, and TV sets Poor television reception and radio interference may result[...]

1 Connect the main lead to an electrical outlet. 2 After placing the food in a suitable container, open the oven door and put it on the glass tray. The glass tray must always be in place during cooking. 3 Close the door securely. 4 Choose cooking power by setting V.P.C. Knob to the desired position. Refer to cookbook for recommended power levels. 5[...]

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 potab[...]

W ARNING • Make sure to check the microwave leakage before and after repair of adjustment. • Always, start measuring of an unknown field to assure safety for operating personnel from microwave energy. • Do not place your hands into any suspected microwave radiation field unless the safe density level is known. • Care should be taken not to [...]

10 KOR-61 15 WIRING DIAGRAM POWER SUPPLY : PRIMARY INTERLOCK SWITCH(UPPER) TIMER SWITCH TIMER ASS'Y V.P.C . FUSE INTERLOCK MONITOR SWITCH HIGH VOLTAGE TRANSFORMER H.V. CAPACITOR H.V. DIODE MAGNETRON WH LIVE RD BK WH NEUTRAL WH BK BL GY GY GY GY GY GY CL GM FM SECONDARY INTERLOCK SWITCH NOTE : RD : RED WH : WHITE BK : BLACK GN : GREEN BR : BROW[...]

11 KOR-61 151 WIRING DIAGRAM POWER SUPPLY : PRIMARY INTERLOCK SWITCH(UPPER) TIMER SWITCH TIMER ASS'Y V.P.C . CAVITY THERMOSTAT INTERLOCK MONITOR SWITCH HIGH VOLTAGE TRANSFORMER H.V. CAPACITOR H.V. DIODE MAGNETRON WH RD BK WH GN WH BK BL GY GY GY GY GY GY CL GM FM SECONDARY INTERLOCK SWITCH NOTE : RD : RED WH : WHITE BK : BLACK GN : GREEN BR : [...]

1. When the food is placed in the oven cavity and door is closed. • The contact of the interlock monitor switch open. • The contacts of the primary interlock switch and secondary interlock switch close. 2. When the timer is set to the time desired. • The contact of the timer switch close. • Oven lamp turn on. • 120V AC is applied to the h[...]

13 HIGH VOLTAGE TRANSFORMER H.V. CAPACITOR H.V. FUSE H.V. DIODE Fig. 2 MAGNETRON 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. • Fan motor, timer motor and turntable motor stop rotating. • O[...]

ƒ¡ 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. You are asked to observe the following p[...]

15 DISASSEMBL Y AND ASSEMBL Y 1. T o remove cabinet Remove three screws on cabinet back. 2. T o remove door assembly (1) Remove two screws ¤ which secure the stopper hinge top. (2) Remove the door assembly ¤Ø from top plate of cavity. (3) Remove the above for reassembly. 3. T o remove door parts NOTE : After replacing the door perform a check of[...]

16 (1) Remove the gasket door ¤ from door plate ¤Œ . (2) Remove the barrier screen inner ¤º from door plate ¤Œ . (3) Remove the door frame ¤Ł from door plate ¤Œ . (4) Remove the stopper hinge top ¤Ø from door plate ¤Œ . (5) Remove the spring ¤ and the hook ¤ . (6) Remove the barrier screen outer ¤ from door frame ¤Ł . (7) Remove[...]

17 5. T o 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 door open lever ¤ from the control panel. (3) Remove two screws ¤Ł which secure the timer assembly ¤Ø . (4) Remove the timer assembly ¤Ø . (5) Pull out the timer knob ¤Œ[...]

6. T o remove high voltage capacitor (1) Remove a screw ¤ which secure the grounding ring ring terminal of the H.V. diode ¤Ł and the capacitor holder ¤Ø . (2) Remove the H.V. diode ¤Ł from the capacitor ¤Ø . (4) Reverse the above steps for reassembly. High voltage circuit wiring 7. T o remove magnetron (1) Remove four screws ¤ which secur[...]

19 8. T o remove fan motor assembly (1) Remove two screws ¤ which secure the back cover ¤Ł from the cavity outer . (2) Remove two screws ¤Ø which secure the fan motor ¤Œ from the back cover ¤Ł . (3) Pull out the fan ¤º from the fan motor ¤Œ . (4) Reverse the above steps for reassembly. 9. T o remove transformer (1) Remove the two screw[...]

20 The door lock mechanism is a device which has 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. If the door is not closed[...]

21 (2) Secondary interlock switch and interlock monitor switch When the door is closed, the hook pushes the push lever downward, the push lever presses the button of the interlock monitor switch to bring it under “OFF”, condition and presses the button of the secondary interlock switch to bring it under “ON”, condition. Adjustment 2 • Int[...]

22 TROUBLE SHOOTING GUIDE TROUBLE DOOR SHUT, TIMER SET BUT NO COOKING TAKES PLACE. Does the fan motor work when you shut the door and turn the timer? Does 15A fuse blow? Check continuity of inter- lock monitor switch with door shuted. Check continuity of both interlock switch’s contact and monitor switch’s contact with door partial- ly open unt[...]

23 Does the fan motor when you shut the door and turn the time? No microwave oscillation. Check continuity of filament of magnetron. NO NO continuity Replace or repair oven lamp, turntable motor. Replace magnetron. Replace high voltage transformer. Replace high voltage diode. Replace high voltage transformer. Replace magnetron. Check the isolation [...]

24 1. High voltage is present at the high voltage terminal of the 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 13). COMPONENT TEST [...]

6. Interlock switches • You can test continuity of safety interlocks and monitor switch by using switch tester or ohmmeter. • The switch operation is checked by zero/unlimited. the meter should indicate zero resistance. • The sequence of check is interlock monitor switch; primary and secondary interlock switched check. 1) In case of interlock[...]

26 NO PART NAME PARTS CODE Q’TY A01 BARRIER-SCREEN *O 3517003000 1 A02 FRAME DOOR 3512202500 1 A03 STOPPER HINGE *T 3515201000 1 A04 DOOR WELD AS 3511705500 1 A05 BARRIER-SCREEN *I 3517002800 1 A06 GASKET DOOR 3512300200 1 A07 HOOK 3513100700 1 A08 SPRING HOOK 3515101300 1 1. Door Assembly EXPLODED VIEW AND P AR TS LIST A01 A02 A03 A04 A05 A06 A0[...]

27 2. Control Panel Ass’y NO PART NAME PARTS CODE Q’TY B01 KNOB VPC 3513402600 1 B02 CONTROL PANEL 3512202000 1 B03 COUPLER VPC KNOB 3517400500 1 B04 SCREW TAPPINGT2S PAN 4X12 PW 7621401211 1 B05 KNOB 3513402500 1 B06 COUPLER TIMER 3517400400 1 B07 TIMER 3518203800 1 B08 SCREW TAPPING T2S PAN 4X12 PW 7621401211 2 B09 LEVER DOOR OPEN 3513701400 [...]

REE NO. PART CODE PART NAME DESCRIPTION Q’TY REMARKS A00 3511706010 DOOR AS KOR-61150S 1 B00 3516713100 CONTROL-PANEL AS KOR-61150A 1 F01 3510801300 CABINET PCM T0.6 1 F02 7S312X40A1 SCREW SPECIAL T1 TRS 4X10 SE MFZN 3 F03 3516104800 CAVITY AS KOR-61150S 1 F04 7S341W40B1 SCREW SPECIAL T2S PAN 4X12 PW SE MFZN 2 F05 7S341W40B1 SCREW SPECIAL T2S PAN[...]

31 KOR-61 151 Parts List REE NO. PART CODE PART NAME DESCRIPTION Q’TY REMARKS A00 3511706010 DOOR AS KOR-61150S 1 B00 3516713100 CONTROL-PANEL AS KOR-61150A 1 F01 3510801300 CABINET PCM TO.6 1 F02 7S312X40A1 SCREW SPECIAL T1 TRS 4X10 SE MFZN 3 F03 3516104820 CAVITY AS KOR-61151A CSA 1 F04 7S341W40B1 SCREW SPECIAL T2S PAN 4X12 PW SE MFZN 2 F05 7S3[...]

DAEWOO ELECTRONICS CO., L TD. 686, AHYEON-DONG, MAPO-GU, SEOUL, KOREA C.P.O. BOX 8003 SEOUL, KOREA TELEX: DWELEC K28177-8 CABLE: “DAEWOOELEC” FAX: 02) 364-5588/5305 TEL: 02) 360-7114/7315~7 PRINTED DA TE: MAR., 1996[...]