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Daewoo KOD-135P9A Service manual

Manual is about: Pizza Baker Built-in Microwaves Combo

Summary of KOD-135P9A

  • Page 1

    Service manual pizza baker built-in microwaves combo model: kod-135p9a s/m no. :d135p9a000 nov.2004.

  • Page 2

    2 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...

  • Page 3: Safety and Precautions

    3 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...

  • Page 4: Specifications

    4 power supply 120v ac 60 hz single phase with earthing power consumption 1.4 kw output power 1000 w microwave frequency 2450 mhz oven timer 59 min. 99 sec. Power levels 10 levels cavity dimensions 380 x 246 x 386 mm (14.9 x 9.7 x 15.2 inch) cavity volume 1.3 cu.Ft pizza oven power consumption 1.45 ...

  • Page 5

    5 0 3 4 5 2 1 9 8 7 6 daewoo electronics 1. Door latch when the door is closed it will automatically shut off. If the door is opened while the oven is operating, the magnetron will automatically shut off. 2. Door seal the door seal maintains the microwave within the oven cavity and prevents microwav...

  • Page 6

    6 7 0 r t u 1 y o 9 5 3 2 6 8 q w e i 4 daewoo electronics 3. Control panel 1 1. Time set pad - used to set the cooking time and the present time. 1 2. Display - cooking time, power level, indicators and present time are displayed. 1 3. Fresh pizza - used to cook fresh pizza. 1 4. Frozen pizza - use...

  • Page 7: Installation

    7 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 and, eventually,...

  • Page 8

    8 once p-hi 100% twice p-90 90% 3 times p-80 80% 4 times p-70 70% 5 times p-60 60% 6 times p-50 50% 7 times p-40 40% 8 times p-30 30% 9 times p-20 20% 10 times p-10 10% 11 times p-00 0% the oven light is on when the microwave oven is operating. The oven door can be opened at any time during operatio...

  • Page 9: Important

    9 the pizza tray can be opened at any time during operation by pulling out the handle on the pizza tray. The pizza oven will automatically shut off. Touch the pizza menu pad and the symbol of menu will be displayed. Each time a pad is touched, a beep sounds to acknowledge the touch. Enter the cookin...

  • Page 10: Handle Controls

    10 • when using the pizza tray, you must unfold the handle of the pizza tray and check the lever of the handle rise up fully. • when not using the pizza oven, you would better fold the handle of the pizza tray. • before folding the handle of the pizza tray, you must push the lever of the handle. Han...

  • Page 11: Disassembly and Assembly

    11 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 safe during normal operation. However, carelessness in servicing the oven can result in an electric shock or possibl...

  • Page 12

    12 1. To remove cabinet 1) remove five screws on cabinet back. 2) push the cabinet backward. Note : to assemble the pizza oven, push two taps on the bottom of the pizza front plate into two rectangular notches of the front plate securely. 2. To take off the pizza oven. 1) remove four screws on the p...

  • Page 13

    13 4. To remove door parts. Ref no. Part name part code description q’ty a01 decorator door 3511613600 sts t0.5 h/l 1 a02 barrier-screen *o 3517006510 san 1 a03 frame door 3512204620 abs 1 a04 stopper hinge *t as 3515202900 kor-121m0a 1 a05 door painting as 3511713600 kor-131g0a 1 a06 barrier-screen...

  • Page 14

    14 5. Method to reduce the gap between the door seal and the oven front surface. (1) to reduce gap located on part ‘a’. • loosen the screw on stopper hinge top, and then push the door to contact the door seal to oven front surface. • tighten the screw. (2) to reduce gap located on part ‘b’. • loosen...

  • Page 15

    15 6. 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 door open lever from the control panel. 3) remove four screws which secure the pcb assembly to control panel. 4) disconnect membra...

  • Page 16

    16 7. To remove high voltage capacitor. 1) remove a screw which secure the grounding ring terminal of the h.V. Diode and the capacitor holder. 2) remove the h.V. Diode from the capacitor holder. 3) reverse the above steps for reassembly. 8. High voltage circuit wiring 9. To remove magnetron. 1) remo...

  • Page 17

    17 10. 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 reasem...

  • Page 18

    18 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...

  • Page 19: Trouble Shooting Guide

    19 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...

  • Page 20

    20 note 1 all these switches must be replaced at the same time, please refer to interlock mechanism and adjustment . (trouble 2) display shows all figures selected, but oven does not start cooking, even though desired program and time are set and start pad is pressed. Condition check check continuit...

  • Page 21

    21 (trouble 3) no microwave oscillation even though fan motor rotates. Condition check result check continuity of high voltage capacitor terminals with wires removed continuity cause defective high voltage transformer defective high voltage fuse remedy 1 replace no microwave oscillation check contin...

  • Page 22

    22 (trouble 4) pizza oven is not heated; condition check check continuity of spring flat malfunction of spring flat result no continuity cause remedy cause remedy adjust or replace toaster heater is not heated. Check d.C voltage being supplied to relay (ry3) coil faulty contacts of relay (ry3) or op...

  • Page 23

    23 (trouble 6) the following visual conditions indicate a probable defective 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 po...

  • Page 24: Measurement and Test

    24 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...

  • Page 25

    25 2. Microwave radiation test 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. 8.5mm(3.5in.). 3. Place it at the cente...

  • Page 26

    26 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 ...

  • Page 27: Wiring Diagram

    27 wiring diagram.

  • Page 28: Printed Circuit Board

    28 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 2. Voltage check - key check point - check method note 1. Refer to ciruit diagram (point 4). 2. Seconda...

  • Page 29

    29 measure point mp2 mp1.

  • Page 30

    30 3. When there is no microwave oscillation 1) when touching start pad, oven lamp turns on and turntable rotates. But fan motor does not rotate. Cause : relay 1, 4 does not operate. Refer to circuit diagram (point 2, 3) - check method 2) when touching start pad, oven lamp turns on. Fan motor and tu...

  • Page 31

    31 2. Pcb circuit diagram.

  • Page 32

    32 no name symbol specification part code q’ty 1 buzzer bz1 bm-20k 3515600100 1 2 c array ca1 7p(6) 1000pf m 50v cn6xb-102m 1 3 capacitor cera c8 102 50v z axial cczb1h102k 1 4 capacitor cera c1~7,c9,c10 104 50v z axial cczf1h104z 9 5 capacitor elec ec1 50v rs 10uf cexe1h100a 1 6 capacitor elec ec2 ...

  • Page 33: Exploded View and Parts List

    33 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.

  • Page 34

    34 no part name part code description q'ty a00 door as 3511725200 kod-135p9a 1 b00 control-panel as 3516732500 kod-135p9a 1 c00 assy pizza oven 3510022000 kod-135p9a 1 f01 cavity as 3516111500 kor-131g0a 1 f02 cabinet as 3510808700 kod-135p9a 1 f03 cord power as 35113t5w0l 3x16awg 80x80 120-rtml 1 f...

  • Page 35

    35 4. Pizza oven assembly (c00).

  • Page 36

    36 no part name part code description q'ty 1 handle pizza *t 3512605400 abs 1 2 handle pizza *u 3512605500 abs 1 3 lever handle 3513703200 pc 1 4 spring handle 3515102800 swp 1 5 bracket handle 3510609200 abs 1 6 shaft handle 3514901400 swrm3 1 7 panel pizza 3514200600 pc 1 8 supporter pizza panel 3...

  • Page 37

    S/m no. : d135p9a000 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: sep. 2004.