Service manual microwave oven model: kor-1p5c7s kor-1p557s daewoo electronics corp. S/m no. : r1p5c7s001 http : //svc.Dwe.Co.Kr jul. 2003 ✔ caution : in this manual, some parts can be changed for improving, their performance without notice in the parts list. So, if you need the latest parts informat...
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 micro- w...
2 safety and precautions 1. For safe operation damage that allows the microwave energy (that cooks or heats the food) to escape will result in poor cooking and may cause serious bodily injury to the operator. If any of the following conditions exist, operator must not use the appliance. (only a trai...
3 external view 560 483 344 560 483 344 1. Outer dimension - kor-1p5c7s - kor-1p557s model kor-1p557s kor-1p5c7s power supply 230v~50hz, single phase with earthing microwave 1,350 w power consumption grill combination microwave energy output 900w microwave frequency 2450mhz outside dimensions (w x h...
4 3 5 4 7 1 6 2 1 1 safety interlock system 2 2 door viewing screen - allows viewing of food. The screen is designed so that light can pass through, but not the microwave. 3 3 door hook - when the door is closed, it will automatically shut off. If the door is opened while the oven is operating, the ...
5 program defrost stop/clear check double quantity power start/ +30sec 11 1 12 2 13 3 14 4 15 5 16 6 17 7 18 8 19 9 20 10 1 3 4 7 8 2 5 6 9 1 1 display - cooking time, power level, indicators are displayed. 2 2 program - used to save cooking data. 3 3 defrost - used to defrost foods for time. 4 4 ti...
6 installation 1. Steady, flat location. This microwave oven should be set on a steady, flat surface. This microwave oven is designed for counter top use only. 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 a...
1. Kor-1p5c7s 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 plate tray. 3. Close the door securely. 4. The oven door can be opened at any time during operation by touching the door release button on the contr...
8 2. Kor-1p557s 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 plate tray. 3. Close the door securely. 4. Choose cooking power level by setting v.P.C knob to the desired position. Refer to cookbook for recomme...
9 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...
10 1. To remove cabinet 1) remove four screws on cabinet back. 2) push the cabinet backward. 2. To remove door assembly 1) remove two screws which secure the stopper hinge top. 2) remove the door assembly from top plate of cavity. 3) reverse the above for reassembly. Note : after replacing the door ...
✔ caution : in this service manual, some parts can be changed for improving, their performance without notice in the parts list. So, if you need the latest parts information, please refer to ppl(parts price list) in service information center (http://svc.Dwe.Co.Kr). 11 3. To remove door parts. Ref n...
12 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. (2) to reduce gap located on part ‘b’. • loos...
✔ caution : in this service manual, some parts can be changed for improving, their performance without notice in the parts list. So, if you need the latest parts information, please refer to ppl(parts price list) in service information center (http://svc.Dwe.Co.Kr). 13 5. To remove control panel par...
✔ caution : in this service manual, some parts can be changed for improving, their performance without notice in the parts list. So, if you need the latest parts information, please refer to ppl(parts price list) in service information center (http://svc.Dwe.Co.Kr). 14 2) kor-1p557s (1) remove the s...
15 note : never install the magnetron without the metallic gasket plate which is packed with each magnetron to prevent microwave leakage. Whenever repair work is carried out on magnetron, check the microwave leakage. It shall not exceed 4mw/cm 2 for a fully assembled oven with door normally closed. ...
16 8. To remove wind guide assembly. 1) remove a screw which secure the wind guide assembly. 2) draw forward the wind guide assembly. 3) pull the fan from the motor shaft. 4) remove two screws which secure the motor shaded pole. 5) remove the motor shaded pole. 6) reverse the above steps for reasemb...
17 interlock mechanism and adjustment 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 sw...
18 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 tran...
19 condition check check continuity of magnetron defective magnetron result no continuity cause remedy replace outlet has proper voltage fuse does not blow. Condition check check continuity of primary interlock switch malfunction of primary interlock switch result no continuity cause remedy adjust o...
20 condition check result check continuity of high voltage capacitor terminals with wires removed continuity cause defective high voltage transformer remedy replace no microwave oscillation check continuity of high voltage rectifier in forward and backward direction with dc megger continuity in back...
21 (trouble 4) the following visual conditions indicate a probable defective touch control circuit or membrane switch assembly (kor-1p5c7s) 1. Incomplete segments, 1) segments missing. 2) partial segments missing. 3) digit flickering other than normal display slight flickering. 4) " :0" does not dis...
22 measurement and test 1. Measurement of the microwave power output microwave output power can be checked by indirectly mmeasuring 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...
23 2. Microwave radiation test procedure 1. Prepare microwave energy survey meter, 600cc glass beaker, and glass thermometer 100°c (212°f). 2. Pour 275cc ± 15cc of tap water initially at 20 ± 5°c (68 ± 9°f) in the 600 cc glass beaker with an inside diameter of approx. 95 mm(3.5 in.). 3. Place it at ...
24 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 ...
25 wiring diagram 1) kor-1p5c7s.
26 2) kor-1p557s.
27 printed circuit board (kor-1p5c7s) 1. Circuit check procedure 1. Low voltage transformer check the low voltage transformer is located on the p.C.B. Measuring condition: input voltage: 230v / frequency: 50hz 2. Voltage check - key check point - check method note 1. Refer to ciruit diagram (point 4...
28 mp1 mp2 measure point.
29 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 2) when touching start pad, oven lamp turns on...
30 2. P.C.B. Circuit diagram.
✔ caution : in this service manual, some parts can be changed for improving, their performance without notice in the parts list. So, if you need the latest parts information, please refer to ppl(parts price list) in service information center (http://svc.Dwe.Co.Kr). 31 no name symbol specification p...
32 exploded view and parts list 1. Door assembly refer to disassembly and assembly 2. Control panel assembly refer to disassembly and assembly 3. Total assembly.
✔ caution : in this service manual, some parts can be changed for improving, their performance without notice in the parts list. So, if you need the latest parts information, please refer to ppl(parts price list) in service information center (http://svc.Dwe.Co.Kr). 33 remark : e : electrical m : me...
S/m no. : r1p5c7s001 daewoo electronics corp. 686, ahyeon-dong mapo-gu seoul, korea c.P.O. Box 8003 seoul, korea telex: dwelec k28177-8 cable: “daewooelec” printed date: jul. 2003.
