Service manual microwave oven model: kom-9f2cts kom-9f2cks s/m no. : may. 2012 ✔ 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 information, please refer to ppl(parts price list) in service infor...
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 microwav...
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 specifications model power supply power consumption microwave output power frequency outside dimensions (w x h x d) cavity dimensions (w x h x d) cavity volume net. Weight timer power selections 240v ac 50hz single phase with earthing 465 x 370 x 599 mm ( 18.31 x 14.57 x 23.58 in.) 371 x 198.5 x 3...
4 external view 1. Outer dimension 465 599 370
5 2. Feature diagram 1 4 6 7 2 3 5 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 door is closed, it will automatically shut off. If the door is opened while the oven is...
6 3. Control panel 1 2 3 4 6 7 8 9 0 5 1 1 microwave indicator it will turn on when the magnetron output actually is on. 2 2 double quantity indicator it will turn on when double quantity pad is pressed. 3 3 stage indicator it will blink the ongoing stage number of its all cooking stages. 4 4 clean ...
7 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 clear. If all vents are covered during operation, the oven may be overheated and, eventually, cause oven failure. 3. Away from radio, and...
8 operations and functions 1. Connect the mains lead to an electrical outlet. 2. Open the oven door once to use the oven. The display lights up and the oven is ready to work. 3. After placing the food in a suitable container, open the oven door and put it in the cavity. 4. Close the door firmly. 5. ...
9 cautions to be observed when troubleshooting. 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 circu...
10 1. To remove cabinet 1) remove thirteen screws on cabinet. 2) pull the cabinet backward. 2. To remove control panel assembly 1) remove three screws which secure the front plate. 2) remove the control panel assembly from front plate of cavity. 3) reverse the above for reassembly. 3. To remove door...
11 4. To remove control panel parts. B01 b02 b03 1) remove three screw which secure the control panel, push up two snap fits and draw forward the control panel assembly. 2) remove three screws which secure the pcb assembly to control panel. 3) reverse the above steps for reassembly. B01 3516742100 c...
12 5. To remove door parts. A01 a02 a03 a04 a05 a07 a08 a09 a10 a11 a12 a13 a06 1) remove the gasket door from the door assembly. 2) remove eleven screws from the door assembly. 3) remove the door seal assembly from the door assembly. 4) remove three screws from door seal assembly. 5) remove the bra...
7. To remove high voltage capacitor. 1) remove each two screws which secure four cover exhausts. 2) remove fourteen screws which secure rear plate assembly. 3) remove each screw which secures two grounding ring terminal of the h.V. Diode and two capacitor holder. 4) remove two h.V. Diode from the ca...
14 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. ...
15 10. To remove h.V.Transformer. 1) remove each four screws holding the h.V. Transformer. 2) remove the h.V.Transformer. 3) reverse the above steps for reassembly. 11. To remove lamp. 1) remove one screws holding the cover lamp. 2) remove counterclockwise direction lamp from the bracket lamp. 3) re...
16 note: when replacing the moving antenna, make sure the plastic stirrer spacers are correctly in place. 13. To remove motor syncro. 1) push left side of stopper in centre of cover stirrer and seperate it from cavity. 2) hold side stoppers of cover stirrer with both hands and pull down. Then take o...
17 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. Condition : door close condition : door open rd/gy rd/bk gy...
18 following the procedure below to check if the oven is defective or not. 1) check earthing 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 ...
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 check continuity of primary interlock switch malfunction of primary interlock switch result no continuity cause remedy adjust or replace fan motor does not rotate check continuity of secondary interlock switch malfunction of secondary interlock switch no continuity adjust or repla...
21 condition check result cause remedy no microwave oscillation check continuity if high voltage capacitor terminals with wires removed continuity defective high voltage transformer replace check continuity of high voltage rectifier in forward and backward direction with dc megger continuity in back...
22 (trouble 4) the following visual conditions indicate a probable defective touch control circuit or membrane switch assembly 1. Incomplete segments, 1) segments missing. 2) partial segments missing. 3) digit flickering other than normal display slight flickering. 2. The display does not show the c...
23 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 ...
24 procedures 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 600cc glass beaker with an inside diameter of approx. 85mm(3.5in.). 3. Place it at the center of the tray and set it in a...
25 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 ...
26 thermostat l br n ge bl n l fu se -b gn l- b bk rd gy sm -t sw it ch- t int er lock pri mar y rd h.V. Di ode -t capac itor -t h.V. In ter lo ck wh hi gh vo lt ag e tra ns former -t mag netro n-t rd gn :g ree n ge :g ree n/ yel lo w bl :bl ue br :br ow n sm :st irrer motor vm :v en t motor cl :cav...
27 ry1 ry2 (rd/bk) (rd/rd) (wh) ry4 ry5 (rd/bk) (rd/rd) (bl) low voltage transformer ic micom (front side) h.V.Transformer fa f magnetron(bottom) magnetron(top) hv capacitor(top) hv capacitor(bottom) (rd)bot (wh)top fa f (rd)bot (wh)top h.V.Transformer note : when replacing, check the lead wire colo...
28 1 ic1 pin 63, 64 5vdc 2 ic1 pin 38 3 ic 1 pin 33 or pin 34 printed circuit board 2. Voltage check - key check point - check method note 1. Refer to ciruit diagram. 2. Secondary side voltage of the low voltage transformer changes in proportion to fluctuation of power source oltage. 3. The allowabl...
29 mp2 mp1 gnd.
30 3. When there is no microwave oscillation cause : relay 1 or relay 4 does not operate. Relay 1 on 5vdc gnd relay 1 off gnd 12vdc relay 4 on 5vdc gnd relay 4 off gnd 12vdc point a b state - fan motor does not rotate cause : relay 7 does not operate. Relay 8 on 5vdc gnd relay 8 off gnd 12vdc point ...
31 a point wave form 5. When the digital clock does not operate properly. → refer to circuit diagram * if clock does not keep exact time, you must check resistor r20, r29, transistor q7. T t: 20ms(50hz) 5v 0v 6. Retrieving service information to retrieve the oven usage history, press and hold 3 pad ...
32 7. Initializing service information to initialize the oven usage history, press and hold 3 pad for 3 seconds when the door is opened. The display will show “service” message, then you can select the service information to be initialized by pressing a number pad as described below. The service inf...
33 2. P.C.B. Circuit diagram.
34 ✔ 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 information, please refer to ppl(parts price list) in service information center (http://svc.Dwe.Co.Kr). 1 buzzer bz1 3515600100 bm-20k (bujeon...
35 1. Door assembly refer to disassembly and assembly. 2. Control panel assembly refer to disassembly and assembly. 3. Total assembly exploded view and parts list f05 f06 f07 f10 f08 f09 f11 f12 f14 f13 f16 f17 f19 f18 f20 f22 f21 f24 f23 f25 f26 f27 f28 f29 f42 f30 f32 f38 f39 f36 f34 f33 f35 f37 f...
36 ✔ 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 information, please refer to ppl(parts price list) in service information center (http://svc.Dwe.Co.Kr). A00 3511732400 door as kom-9f2cts 1 b0...
37 ✔ 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 information, please refer to ppl(parts price list) in service information center (http://svc.Dwe.Co.Kr). F47 3518704500 fuse hv 5kv 800ma *thv-...
S/m no. : daewoo electronics corp. 1-2, jeo-dong 1(il)-ga, jung-gu, seoul, korea c.P.O. Box 8003 seoul, korea telex: dwelec k28177-8 cable: “daewooelec” printed date: may. 2012.
! !""# #""$ $% %& & ' '( () )* *+ +""! !) ),,&&""% %' '-- ./ 012 345 678 9:; about this manual about this manual ? @ abc d e&$&f&)&g h$eijkl'+#,&h$eijkl'h#&m#neo p q lrsl-rt-ru e)e$&&v wjx yz[ !"#"$% ? @ a \ q +)g] ^wrir66r&k*_] ^wriw^uu sl-rt-rui`8,&`8a,&wx,&=x,&tx,&6x,&^x,&srx,&ssx,&slx,&swx,&stx,...
