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Sanyo EM-D975, Руководство по обслуживанию

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PART  NO. 

PART CODE NO. 

NAME 

QTY  

PART  NO. 

PART CODE NO. 

NAME 

QTY 

P01 

GA-D900L30RP01  Oven cavity   

1   

P47 

GA-D900L30RP47  Driving fan blade 

1 

P02 GA-D900L30RP02 

Door 

 

1 

 P48 GA-D900L30RP48 

Driving 

wheel 

1 

P03 

GA-D900L30RP03  Door window 

1   

Rotational axis   

P04 GA-D900L30RP04 

Door 

frame 

1 

 

P49 GA-D900L30RP49 

bracket (upper) 

1 

P05 GA-D900L30RP05 

screw 

6 

 P50 GA-D900L30RP50 

 

label 

1 

P06 GA-D900L30RP06 

Choke 

cover 

1 

 P51 GA-D900L30RP51 

Rotational 

axis 

1 

P07 GA-D900L30RP07 

Heat 

resistant glass 

1   

Rotational axis 

P08 GA-D900L30RP08 

Mica 

sheet 

1 

 

P52 GA-D900L30RP52 

bracket (lower) 

1 

P09 GA-D900L30RP09 

Latch 

spring 

1 

 P53 GA-D900L30RP53 

Washer 

1 

P10 GA-D900L30RP10 

Door 

latch 

1 

 P54 GA-D900L30RP54  Convectional fan blade 

1 

P11 

GA-D900L30RP11  Fan blade 

1   

Outer heat insulated   

P12 GA-D900L30RP12 

Fan 

shroud 

1 

 

P55 GA-D900L30RP55 

plate assembly 

1 

P13 

GA-D900L30RP13  Capacitor holder 

1   

Inner heat insulated   

P14 GA-D900L30RP14 

Control 

panel 

1 

 

P56 GA-D900L30RP56 

plate assembly 

1 

P15 

GA-D900L30RP15  knob upper cover 

1   

Convectional fan   

P16 GA-D900L30RP16 

Panel 

window 

1 

 

P57 GA-D900L30RP57 

blade fibre glass 

1 

P17 GA-D900L30RP17 

knob 

 

1 

 P58 GA-D900L30RP58 

Key 

pad 

1 

P18 

GA-D900L30RP18  knob under cover 

1   

P59 GA-D900L30RP59 

Glass 

tray 

1 

P19 GA-D900L30RP19 

Sponge 

1 

 P60 GA-D900L30RP60 

Roller 

ring 

1 

P20 

GA-D900L30RP20  Foot pin 

4   

P61 

GA-D900L30RP61  Ring wheel 

3 

P21 

GA-D900L30RP21 Foot   

4   

P62 

GA-D900L30RP62 Shaft 

1 

P22 

GA-D900L30RP22  Inner rotary arm   

1   

P63 

GA-D900L30RP63  Washer 

1 

P23 

GA-D900L30RP23  Outer rotary arm   

1   

P64 

GA-D900L30RP64  Shock proof rubber 

2 

P24 GA-D900L30RP24 

Interlock 

support 

1 

 P65  GA-D900L30RP65 

Baking 

plate 

1 

P25 GA-D900L30RP25 

Lamp 

socket 

1 

 P66 GA-D900L30RP66 

Heater 

bracket 

4 

P26 

GA-D900L30RP26  H.V.fuse holder bracket 1 

  P67  GA-D900L30RP67 

Key 

pad 

1 

P27 GA-D900L30RP27 

nut 

1 

 P68 GA-D900L30RP68 

Sponge 

1 

P28 

GA-D900L30RP28  Lamp bracket 

1   

P69 

GA-D900L30RP69  Driving belt 

1 

P29 

GA-D900L30RP29  Air duct 

1   

P70 

GA-D900L30RP70  M4 skidproof nut 

2 

P30 GA-D900L30RP30 

Bearing 

1 

 P71 GA-D900L30RP71 Left fiberglass 

1 

P31 

GA-D900L30RP31  heater spring   

1   

Heat insulated   

P32 GA-D900L30RP32 

Thermostat 

bracket 

1 

 

P72 GA-D900L30RP72 

chipboard 

1 

P33 

GA-D900L30RP33  Power cord holder 

1   

P73 

GA-D900L30RP73  grill heater clamp 

1 set 

P34 GA-D900L30RP34 

Insulating 

film 1 

 

P74 

GA-D900L30RP74 

Sponge 

1 

P35 GA-D900L30RP35 

fuse 

bracket 

1 

 P75 GA-D900L30RP75 

ceramic 

holder 

3 

Right heat insulated   

 

P76 

GA-D900L30RP76  Wire fastener 

2 

P36 GA-D900L30RP36 

plate(front) 

1 

 P77  GA-D900L30RP77 

H.V.fuse 

holder 

1 

Right heat insulated   

 

P78 

GA-D900L30RP78  wave filter bracket 

1 

P37 GA-D900L30RP37 

plate(rear) 

1 

 P79  GA-D900L30RP79 

Insulating 

film 

2 

Right heat insulated   

 

P80 

GA-D900L30RP80  temperature sensor bracket 

1 

P38 GA-D900L30RP38 

  fibre glass (front) 

1 

 P81  GA-D900L30RP81 

key 

pads 

1 

 

24

Содержание EM-D975

Страница 1: ...Microwave Oven MODEL EM D975 Service Manual REFERANCE NO SM150008 ...

Страница 2: ...G PRINCIPLE OF MICROWWAVE OVEN 4 2 1 HIGH VOLTAGE RECTIFYING CIRCUIT 4 2 2 MICROWAVE GENERATER 4 2 3 COOLING SYSTEM 5 2 4 ELECTRIC CONTROL SYSTEM 5 3 TYPICAL CIRCUIT ANALYASIS OF MICROWAVE OVEN 8 4 HOW TO ASSEMBLE AND DISASSEMBLE MICROWAVE OVEN COMPONENTS 9 4 1 THE CABINET 9 4 2 THE DOOR COMBINATION 10 4 3 THE CONTROL PANEL AND THE DOOR RELEASE MECHANISM 11 4 4 THE MAGNETRON 11 4 5 THE TRANSFORMER...

Страница 3: ... wave guide or transmission line and cavity for proper alignment integrity and connections Any defective or misaligned components in the interlock monitor door seal and microwave generation and transmission systems shall be repaired replaced or adjusted by procedures described in this manual before the oven is released to the owner A microwave leakage check to verify compliance with the Federal pe...

Страница 4: ... per second so do the molecule This kind of molecule swaying producing similar frictional heat from the interference and block of the action strength among the molecule and changed to microscopic microwave heating Microwave heating not only concerned the nature of the matter itself but also closely connected with the electric strength and frequency When the frequency is low the molecule swaying ra...

Страница 5: ...ature If something wrong with the cooling system cause the temperature too high the control system would cut off the power automatically to prevent microwave generator being damaged form the high temperature Now we d like to introduce the working principle of each part of the widely used model mechanical control and touch control microwave oven 2 2 1 1 H HI IG GH H V VO OL LT TA AG GE E R RE EC CT...

Страница 6: ... reduce the surge voltage the filament of the magnetron must be connected as the FIG 2 3 shown In this figure when the anode current of the magnetron circulates the filament current should flow to the FA end from the lower end anode current Ib mA anode voltage e b kV m Fig 2 4 2 2 3 3 C CO OO OL LI IN NG G S SY YS ST TE EM M In the working process of the microwave oven the magnetron often makes th...

Страница 7: ...t switch S3 still at conducted condition would make the 230V voltage short circuited and fused the fuse and will never let the microwave oven working when the door is open From this we can understand the function of the interlock switch is when the door is unclosed the oven wouldn t work when the door is opened when the oven is working it would stop the working immediately FIG 2 5b 2 2 4 4 2 2 T T...

Страница 8: ...illating models simultaneously Microwave enters into the oven cavity through the wave guide and the coupling appliance and most of its energy is absorbed by the food after it is reflected in the cavity repeatedly those which haven t been absorbed will be reflect to the magnetron A good designed oven cavity should have a good impedance matching with the magnetron the energy should be less reflect a...

Страница 9: ...TANT Recently with the installation of noise filter in the current resistant trough the effect to restrain the microwave leakage include high subharmonic have been much improved front door plate Fig 2 9 current resistant constructure oven door noise filter 3 3 T TY YP PI IC CA AL L C CI IR RC CU UI IT T A AN NA AL LY YA AS SI IS S O OF F M MI IC CR RO OW WA AV VE E O OV VE EN N We have introduced ...

Страница 10: ...g When the thermal cutout is cut off the magnetron motors and the lamp would stop working simultaneously Moreover the thermal cutout has the self resuming character when the temperature lowered it will resume to close condition 4 4 H HO OW W T TO O A AS SS SE EM MB BL LE E A AN ND D D DI IS SA AS SS SE EM MB BL LE E M MI IC CR RO OW WA AV VE E O OV VE EN N C CO OM MP PO ON NE EN NT TS S In the fol...

Страница 11: ...frame from the doorplate FIG 4 2 r a Fig 4 3 b Take off the hook spring with a pointed plier then the hook combination Clamp the window plate with hand push it down according to the arrow direction and take it off To assemble the door combination see sketch 4 2 to 4 5 Apply proper silicon grease or lubricating grease on the mark of the hook first then fix the hook on the oven door and the spring o...

Страница 12: ...disassemble Pull out the terminal plug of the time and power distributor Take off the screw which fix the control panel with a screwdriver FIG 4 6 Take off the control panel To assemble 1 Place the two buckles under the control panel into the two rectangle holes under the oven as FIG 4 6 then make close of the control panel and the oven with being fixed with a screw Plug in the terminal plug 4 4 4...

Страница 13: ...se board make sure the screw hole are tallied then tighten the four screws for the high voltage winding is earthing here transformer base board screw seat Fig 4 9 Fig 4 10 Fix the transformer on the oven as FIG 4 10 tear off the protect paper of the rubber spacer set it between the transformer and the oven make sure the adhesive side is sticked on the oven Plug in all the terminals of the transfor...

Страница 14: ...nd FIG 4 12 2 4 4 7 7 T TH HE E C CA AP PA AC CI IT TO OR R Firstly do as the 1 2 3 steps of of this part To disassemble Pull the wires of the capacitor out 4 15 1 2 1 2 3 4 Loosen and take out the screw which fix the capacitor clip with a screwdriver and take out the clip and the capacitor 4 15 Fig 4 13 screw fan motor back board Fig 4 14 fan To assemble Place the capacitor in the capacitor clip ...

Страница 15: ... motor with two screws FIG 4 17 Plug in the two wires Assemble and fix the middle base board with two screws FIG 4 18 Turn the oven back As the FIG 4 19 shown fix in the turntable shaft supporter the place in the roller ring and the glass tray as FIG 4 20 4 4 1 10 0 T TH HE E D DO OO OR R S SA AF FT TY Y I IN NT TE ER RL LO OC CK KS S Fig 4 19 turntable shaft supporter roller ring Firstly do as th...

Страница 16: ...with a screwdriver Means of dismantling the PC board and door release mechanism 1 Pull out all the terminal plug of the PC board 2 Loosen out the two screws which fix the control panel with a screwdriver FIG 4 6 3 Take off the control panel 4 Take off the three screws which fix the PC board as the FIG 4 22 Fig 4 22 5 Take off the range terminal plugs as FIG 4 24 shown that is press the two places ...

Страница 17: ... wen noise Fig 5 1 glass tray 2 Long time shishi noise 3 Strike sound like Pipa pipa 5 5 2 2 S SP PO OT T E EX XA AM MI IN NI IN NG G S ST TE EP PS S O OF F T TH HE E M MI IC CR RO OW WA AV VE E O OV VE EN N 5 5 2 2 1 1 E EX XA AM MI IN NE E T TH HE E M MI IC CR RO OW WA AV VE E I IN NS SU UL LA AT TI IN NG G R RE ES SI IS ST TA AN NC CE E Measure the insulating resistance with a avometer or a meg...

Страница 18: ...transformer with alternating 10V grade of an avometer the value should be about 3 4V FIG 5 5 If there is no voltage at all it indicates the transformer has broken and should be replaced by a new one If it is enough to 3 4V check the filament resistance of the magnetron measure the filament plug with the R 1 grade of a avometer FIG 5 6 If it is open circuited it indicates the magnetron has broken a...

Страница 19: ...is normal between the two pole of the capacitor then the insulation between the capacitor pole and the cabinet should be measured with R 10K grade of an avometer The resistance value should be FIG 5 12 If it is short circuited or have a number reading it indicates that the capacitor has been punctured or electricity leaked and should be replaced by a same model same capacity one If the resistance ...

Страница 20: ...n the screw push the door close to the oven to hook the door hook with the switch holder tightly then tighten the screw again and open and close the door repeatedly to check whether the door can operate flexibly whether the hook and the switch are in their normal position If it is not in position then adjust the door hook and the switch holder repeatedly to make them to normal position to put thro...

Страница 21: ...ter if it is open circuited it indicates the winding of the fan motor has broken and should be re placed by a new same model one 5 5 4 4 T TH HE E C CH HA AR RA AC CT TE ER RS S R RE EQ QU UI IR RE EM ME EN NT TS S O OF F M MI IC CR RO OW WA AV VE E A AF FT TE ER R I IT T H HA AS S B BE EE EN N R RE EP PA AI IR RE ED D After being repaired the microwave oven should have a 30 minutes trial operatio...

Страница 22: ...l until the oven has In the event that the oven operates with the door open The following procedures should be followed 1 Tell the user not to operate the oven 2 Hold the oven in your facility until it is investigated and repaired 3 Contact the manufacturer and CDRH FDA immediately 6 6 2 2 I IN NT TE ER RL LO OC CK K A AS SS SE EM MB BL LY Y R RE EP PL LA AC CE EM ME EN NT T A AN ND D A AD DJ JU U...

Страница 23: ... power distributor or the micro switch Fix them 3 The food can be heated but the lamp is not on The lamp broken The plug falls off Change a new lamp Insert the plug again 4 The food can be heated but the turntable tray is not rotating The turntable motor broken The plug fall off Connecting shaft weave broken Change the turntable motor Inset the plug securely Change the weave 5 The oven can heat wi...

Страница 24: ...sition of the door Change the hook 10 The door release button fall off Worn out and aged after long time operating Overhaul it or renew it 11 Electricity leaking The earthing insulation resistance of all the motors or the transformer are less than 2 megaohms Test where is the leaking place then repair it or change those damaged components 8 8 E EM M D D9 97 75 5 e ex xp pl lo od de e d dr ra aw wi...

Страница 25: ...19 Sponge 1 P60 GA D900L30RP60 Roller ring 1 P20 GA D900L30RP20 Foot pin 4 P61 GA D900L30RP61 Ring wheel 3 P21 GA D900L30RP21 Foot 4 P62 GA D900L30RP62 Shaft 1 P22 GA D900L30RP22 Inner rotary arm 1 P63 GA D900L30RP63 Washer 1 P23 GA D900L30RP23 Outer rotary arm 1 P64 GA D900L30RP64 Shock proof rubber 2 P24 GA D900L30RP24 Interlock support 1 P65 GA D900L30RP65 Baking plate 1 P25 GA D900L30RP25 Lamp...

Страница 26: ...m 1 B06 GA D900L30PB06 Plastic bag 1 B07 GA D900L30RB07 Foam cushion 2 B08 GA D900L30RB08 Plastic bag 1 B09 GA D900L30RB09 Packing belt 1 B10 GA D900L30RB10 Carton 1 B11 GA D900L30RB11 Wrapping nail 12 EM D975 Microwave Oven Components List PART NO PART CODE NO NAME QTY C01 GA D900L30RC01 Fan motor 1 C02 GA D900L30RC02 H V capacitor 1 C03 GA D900L30RC03 H V diode 1 C04 GA D900L30RC04 PC board 1 C0...

Страница 27: ... GA D900L30RC16 fuse 1 C17 GA D900L30RC17 thermostat 1 C18 GA D900L30RC18 Convection motor 1 C19 GA D900L30RC19 temperature sensor 1 C20 GA D900L30RC20 wave filter 1 C21 GA D900L30RC21 Heater of grill 1 26 ...

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