Related Manuals for Daewoo KOR-1A4H0P
Summary of Contents for Daewoo KOR-1A4H0P
-
Page 1: Microwave Oven
S/M No.: Service Manual Microwave Oven Model : KOR-1A4H0P DAEWOO ELECTRONICS CO., LTD. http://svc.dwe.co.kr... -
Page 2: Table Of Contents
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. -
Page 3: Safety And Precautions
SAFETY AND PRECAUTIONS 1. FOR SAFE OPERATION D am age that allow s the m icrow ave energy (that cooks or heats the food) to escape will result in poor cooking and m ay cause serious bodily injury to the operator. IF A N Y O F TH E FOLLO W IN G CO N D ITIO N S E X IS T, O P E RATO R M U S T N O T US E TH E A P P LIA N C E . -
Page 4: Specifications
SPECIFICATIONS 1) KOR-1A4H MODEL KOR-1A4H0P POWER SUPPLY 220V~60Hz, SINGLE PHASE WITH EARTHING POWER MICROWAVE 1400W CONSUMPTION GRILL COMBINATION MICROWAVE ENERGY OUTPUT 1000W MICROWAVE FREQUENCY 2450MHz OUTSIDE DIMENSIONS (W X H X D) 539 x 300 x 435 mm (21.2 x 11.8 x 17.1 in.) CAVITY DIMENSIONS (W X H X D) 354 x 228 x 370 mm (13.9 x 9.0 x 14.6 in.) -
Page 5: External View
EXTERNAL VIEW 1. OUTER DIMENSION 1) KOR-1A4H Def. Timer Lock MICROWAVE OVEN KOR - 1A4H Dish Pasta Warmer Fresh Beverage Vegetable Frozen Frozen Vegetable Pizza Auto Defrost Fish Poultry Meat 1hour 10min. 1min. Power Defrost Kitchen Clock Timer STOP/ START/ CLEAR SPEEDY COOK... -
Page 6: Feature Diagram
EXTERNAL VIEW 2. FEATURE DIAGRAM 1) KOR-1A4H ② ① ⑤ ⑥ Def. Timer Lock MICROWAVE OVEN KOR - 1A4H ⑦ Dish Pasta Warmer Fresh Beverage Vegetable Frozen Frozen Vegetable Pizza Auto Defrost Fish Poultry Meat 1hour 10min. 1min. Power Defrost Kitchen Clock Timer... -
Page 7: Control Panel
EXTERNAL VIEW 3. CONTROL PANEL 1) KOR-1A4H ② Def. Timer Lock MICROWAVE OVEN KOR - 1A4H ③ Dish Pasta Warmer Fresh Beverage Vegetable Frozen Frozen Vegetable Pizza ④ Auto Defrost ⑤ Fish Poultry Meat ⑥ 1hour 10min. 1min. ① ⑦ ⑧... -
Page 8: Installation
INSTALLATION 1. Steady, flat location This m icrow ave oven should be set on a steady, flat surface. This m icrow ave oven is designed for counter top use only. 2. Leave space behind and side A ll air vents should be kept a clearance. If all vents are covered during operation, the oven m ay overheat and, eventually, cause failure. -
Page 9: Operations And Functions
OPERATIONS AND FUNCTIONS 1. Connect the m ain 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 m ust always be in place during cooking. 3. -
Page 10: Disassembly And Assembly
DISASSEMBLY AND ASSEMBLY Cautions to be observed when trouble shooting. Unlike many other appliances, the microwave oven is 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. - Page 11 DISASSEMBLY AND ASSEMBLY 1. To remove cabinet 1) Remove three screws on cabinet back. 2) Push the cabinet backward. 2. To remove door assembly 1) Remove screws which secure the stopper hinge top. 2) Remove the door assembly from top plate of cavity. 3) Reverse the above for reassembly.
- Page 12 DISASSEMBLY AND ASSEMBLY 3. To remove door parts 1) KOR-1A4H REF NO. PART CODE PART NAME DESCRIPTION QíTY REMARK 3511711300 DOOR PAINTING AS KOR-1A1G0A 3513100730 HOOK POM BLACK 3515101300 SPRING HOOK 3517005910 BARRIER-SCREEN * O GLASS T3.2 3512204320 FRAME DOOR ABS XR-401 SG-175 3511604700 DECORATOR DOOR * T...
- Page 13 DISASSEMBLY AND ASSEMBLY 4. Method to reduce the gap between the door seal and the oven front surface. 1) To reduce gap located on part 'A' Loosen two screws on stopper hinge top, and then push the door to contact the door seal to oven front surface. Tighten two screws.
- Page 14 PART NAME DESCRIPTION Q'TY REMARK 3511604800 DECORATOR C-PANEL STS304 T0.6 3518522140 SWITCH MEMBRANE KOR-1A4H0P 3516722320 CONTROL-PANEL ABS SG-175 SG-0760D PKMPMSXT00 PCB AS KOR-1A4H0P 7122401211 SCREW TAPPING T2S TRS 4* 12 MFZN 1) Remove the screw which secure the control panel, push up two snap fits and draw forward the control panel assembly.
- Page 15 DISASSEMBLY AND ASSEMBLY 6. To rem ove high voltage capacitor. 1) Rem ove a screw which secure the grounding ring term inal of the H.V.diode and the capacitor holder. 2) Rem ove the H.V. diode from the capacitor holder. 3) Reverse the above steps for reassem bly. H igh voltage circuit w iring 7.
- Page 16 DISASSEMBLY AND ASSEMBLY 8. To remove wind guide assembly. 1) Rem ove a screw which secure the wind guide assem bly. 2) Draw forward the wind guide assem bly. 3) Pull the fan from the m otor shaft. 4) Rem ove two screws which secure the m otor shaded pole. 5) Rem ove the m otor shaded pole.
-
Page 17: Interlock Mechanism And Adjustment
INTERLOCK MECHANISM AND ADJUSTMENT The door lock m echanism is a device which has been specially designed to com pletely elim inate m icrowave radiation when the door is opened during operation, and thus to perfectly prevent the danger resulting from the leakage of microwave. (1) Prim ary interlock switch W hen the door is closed, the hook locks the oven door. -
Page 18: Trouble Shooting Guide
TROUBLE SHOOTING GUIDE Following the procedure below to check if the oven is defective or not. 1) Check grounding before trouble checking. 2) Be careful of the high voltage circuit. 3) Discharge the high voltage capacitor. 4) When checking the continuity of the switches, fuse or high voltage transformer, disconnect one lead wire from these parts and check continuity with the AC plug removed. - Page 19 TROUBLE SHOOTING GUIDE CONDITION REMEDY CHECK RESULT CAUSE Replace Check continuity of Defective Outlet has magnetron magnetron Continuity proper voltage Fuse does not blow. Replace Check continuity of Open power power supply cord Continuity supply cord Normal Replace Defective touch control circuit Replace Display do not...
- Page 20 TROUBLE SHOOTING GUIDE (TROUBLE 3) No microwave oscillation even though fan motor rotates. CONDITIO N REMED Y CHECK RESULT CAUSE Continuit y Replace Defective No microwave Check continuity of high high voltag oscillation voltage capacitor transformer terminals with wire s removed Replace Continuity in...
- Page 21 TROUBLE SHOOTING GUIDE (TROUBLE 4) The following visual conditions indicate a profective touch control circuit or membrane switch assembly. 1. Incomplete segments, 1) Segments missing. 2) Partical segments missing. 3) Digit flickering other than normal display slight flickering. 4) ":0" does not display when power is on. 2.
-
Page 22: Measurement And Test
MEASUREMENT AND TEST 1. MEASUREMENT OF THE MICROWAVE POWER OUTPUT 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 100 5cc of potable water. -
Page 23: Microwave Radiation Test
MEASUREMENT AND TEST 2. MICROWAVE RADIATION TEST WARNING 1. Make sure to check the microwave leakage before and after repair of adjustment. 2. Always start measuring of an unknown field to assure safety for operating personnel from microwave energy. 3. Do not place your hands into any suspected microwave radiation field unless the safe density level is known. 4. -
Page 24: Component Test Procedure
MEASUREMENT AND TEST 3. COMPONENT TEST PROCEDURE High voltage is present at the high voltage terminal of the high voltage transformer during any cooking cycle. It is neither necessary nor advisable to attempt measurement of the high voltage. Before touching any oven components or wiring, always unplug the oven from its power source and discharge the capacitor. 1. -
Page 25: Wiring Diagram
WIRING DIAGRAM 1) KOR-1A4H0P... -
Page 26: Printed Circuit Board
PRINTED CIRCUIT BOARD 1. CIRCUIT CHECK PROCEDURE 1) Low voltage transformer check The low voltage transformer is located on the P.C.B. Measuring condition : Input voltage : 120V / Frequency : 60Hz Terminal Voltage LOAD NO LOAD 4 - 7 AC 24.7V AC 29.7V NOTE... - Page 27 PRINTED CIRCUIT BOARD Measure Point...
- Page 28 PRINTED CIRCUIT BOARD 3) When there is no microwave oscillation 1) When touching START pad, oven lamp does not turn on. Fan motor do not rotate, but cook indicator in display comes on. * Cause : RELAY 2 does not operate. refer to Circuit Diagram (Point 3) - Check method POINT...
-
Page 29: Circuit Diagram
PRINTED CIRCUIT BOARD 2. P.C.B. CIRCUIT DIAGRAM... -
Page 30: Location No
PRINTED CIRCUIT BOARD 3. P.C.B. LOCATION NO NAME SYMBOL SPECIFICATION PART CODE QíTY BUZZER BM-20K 3515600100 C ARRAY 7P(6) 102M 50V CN4XB-102M CAPACITOR ELEC 50V RS 1MF CEXE1H109A CAPACITOR ELEC 25V RSS 1000uF CEXF1E102V CONNECTOR WAFER YW396-02AV 3519150520 CONNECTOR WAFER FCZ254-11 441M367160 CONNECTOR WAFER... -
Page 31: Exploded View And Parts List
EXPLODED VIEW AND PARTS LIST 1. DOOR ASSEMBLY Refer to Disassem bly and assem bly. 2. CONTROL PANEL ASSEMBLY Refer to Disassem bly and assem bly. 3. TOTAL ASSEMBLY 1) KOR-1A4H... - Page 32 1) KOR-1A4H REF.NO PART CODE PART NAME DESCRIPTION Q'TY REMARK 3511711220 DOOR AS KOR-14AG0A PKCPSWXR10 CONTROL-PANEL AS KOR-1A4H0P 3510802500 CABINET PCM T0.6 3516004100 SPECIAL SCREW T1 TRS LR4 POLE 4*10 SE MFZN 3516110400 CAVITY AS KOR-1A1G0A 3516110000 CAVITY JOINT AS...
- Page 33 EXPLODED VIEW AND PARTS LIST REF.NO PART CODE PART NAME DESCRIPTION Q'TY REMARK 3966310100 MOTOR SYNCRO 220V 2.5W GM-16-24FD12 3518905400 THERMOSTAT OFF:90 ON:60 H#187 NB 3513003400 HOLDER THERMOSTAT 7272400811 SPECIAL TAPTITE TT3 TRS 4X8 MFZN 3511406200 COVER WAVE GUIDE HEATPROOF PP 3517400620 COUPLER XAREC...
- Page 34 DAEWOO ELECTRONICS CO., LTD DAEWOO ELECTRONICS CO., LTD DAEWOO ELECTRONICS CO., LTD DAEWOO ELECTRONICS CO., LTD DAEWOO ELECTRONICS CO., LTD DAEWOO ELECTRONICS CO., LTD DAEWOO ELECTRONICS CO., LTD DAEWOO ELECTRONICS CO., LTD 686, AHYEON-DONG MAPO-GU 686, AHYEON-DONG MAPO-GU 686, AHYEON-DONG MAPO-GU...