Sharp R-9H55 Скачать руководство пользователя страница 47 | Manualshive

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Содержание R-9H55

Страница 1: ...TANT INFORMATION 1 WARNING 1 RODUCT SPECIFICATIONS 2 APPEARANCE VIEW 3 OPERATING SEQUENCE 4 FUNCTION OF IMPORTANT COMPONENTS 8 TRABLESHOOTING CHART 11 TEST PROCEDURE 14 TOUCH CONTROL PANEL 24 COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE 31 MICROWAVE MEASUREMENT 38 WIRING DIAGRAM 39 PICTORIAL DIAGRAM 41 CONTROL PANEL CIRCUIT 42 PRINTED WIRING BOAD 43 PARTS LIST 44 SHARP CORPORATION ...

Страница 2: ...i ...

Страница 3: ...sed or connected All in put and output microwave connections waveguides flanges andgaskets must be secured Never operate the device without a microwave energy absorbing load attached Never look into an open waveguide WARNING Never operate the oven until the following points are ensured A The door is tightly closed B The door brackets and hinges are not defective C The door packing is not damaged D...

Страница 4: ...99 min 99 sec Microwave Power for Variable Cooking Repetition Rate HIGH Full power throughout the cooking time MED HIGH approx 70 of Full Power MED approx 50 of Full Power MED LOW DEFROST approx 30 of Full Power LOW approx 10 of Full Power Convection Temperature for Variable Cooking CONVECTION 40 to 250 C Temp control LOW MIX BAKE 180 C with 10 of microwave power HIGH MIX ROAST 200 C with GRILL 30...

Страница 5: ...SStO X ktMl iCC mode 0 REHEATSENSOR PAD REHEART SENSOR Pestosf ka3pcpdafRehf at menuswiul sensrr POWER LEVEL PAD Fzzfp Pfesstoseled m I FUNcrnPADS settitq lfnotpressed HIGH is NUvlBERANDTEMPERATURE 1 2 3 4 5 4O C 70 c 130 c 15O C 160 C line 33nwam M Cab 6 7 8 __ 9 0 180 c 200 c 22O C 230 C STOP CLEARPAD B g MOW4 ES v PADS Prt2sstoincr ease hetim klonel klldeiduitlg a3ckkgortDalIerthedonenessfor tt...

Страница 6: ...ed 4 5 Upon completion of the cooking time the power trans former oven lamp etc are turned off and the genera tion of microwave energy is stopped The oven will re vert to the OFF condition 6 When the door is opened during a cook cycle the monitor switch upper latch switch lower latch switch and stop switch are activared with the following results The circuits to the turntable motor cooling fan mot...

Страница 7: ...eturned to the open position closing the damper switch contacts which send a signal to the control unit de energizing shut off relay RY4 AUTOMATIC MIX COOKING CONDITION Program desired cooking time and temperature by touch ing the number pads and the LOW Ml or HIGH MIX pad When the START pad is touched the following operations occur 1 The numbers of the digital readout start the count down to zero...

Страница 8: ... START pad is touched the following operations occur 1 The COOK indicator will light and the Microwave Sym bol and or the Convection Fan Symbol will rotate 2 The cooking time will appear on the display and start counting down to zero The cooking time is adjusted automatically according to the weight of the food 3 The shut off relays RYl RY3 RY5 and RY6 are ener gized turning on the oven lamp turnt...

Страница 9: ...avity LSI will switch off the relays to the power transformer fan mo tor and convection motor and LSI stops counting down And then the damper is closed so that the fresh air does not come into the oven cavity 0 2 20 30 32 I I 64 Set I I I I k l I I I I CONVECTION I I I I I MOTOR ON I I I I I I I OFF I I I I I 3sec I I I 7 I I I I I Sensing the voltage across temperature measurement circuit 7 ...

Страница 10: ...e oven thermal cut out located on the left side of the thermal protection plate is designed to prevent damage to the convection heater unit if an overheated condition de velops in the tube due to cooling fan failure obstructed air ducts dirty or blocked air intake etc Under normal opera tion the oven thermal cut out remains closed However when abnormally high temperatures are reached within the he...

Страница 11: ... the inside of the oven through the vent holes provided on the left side of the oven Next the hot air heats the food on the turntable and leaves the oven cavity through the vent in the oven cavity left side wall Without leaving the oven this hot air is reheated by the convection heater passes through the convection pas sage and enters the inside of the oven cavity again in a continuing cycle In th...

Страница 12: ...ol unit and shut off relay RY4 is de energized The damper is held in the closed position during the convection cooking operation At the end of the convection cooking shut off relay RY4 is energized and the damper is returned to the open position NOTE If the damper door is not in the proper position closed durining convection or open durning micro wave the control unit will stop oven operation afte...

Страница 13: ...t the water is now hot If the water remains cold carry out 3D checks and re examine the connections to the component being tested Sharp recommend that wherever possible fault find ing is carried out with the supply disconnected It may in some cases be necessary to connect the supply after the outer case has been removed in this event carry out 3D checks and then disconnect the leads to the primary...

Страница 14: ... ONDITION operate Cooling fan motor does not operate 0 0 The oven stops after1 minute 0 0 Oven does not go into a cook cycle when START pad is touched 0 0 Low or no power is produced during microwave IfCROWAVE o Q ga I e food is heated incompletely or not 0 0 0 0 Extremely uneven heating is produced in oven load food Function of variable cooking does not operate prop erly except HIGH power CONV in...

Страница 15: ... REPLACE CK CHECK z 4 ii 3 1 3 c G ii 1 1 3 3 3 m N T 2 i 3 I N Y 4 w lx 1 m RE I W x c 0 co LL 0 a 2 a I z 0 2 3 d m C I a z E 3 121 P cc 0 I cl3 a 0 Z Iii 0 3 3 3 C C c C Q 0 3 3 3 3 3 3 T SKCH m 7 I 13 ...

Страница 16: ...during this microwave heating period the calorie of thewater is V x AT The formula is as follows f xt 4 187 VxAT P W 4 187xVxAT t Our condition for the water load is as follows Room temperature around 20 C Power supply Voltage Rated voltage Water load 1000 g Initial temperature 1O t 2 C Heating time 49 sec P 85xAT Measuring condition 1 Container The water container must be a cylindrical borosilica...

Страница 17: ... load how much it can be absorbed by the water load To measure the microwave output power in the microwave oven the relation of calorie and watt is used On the other hand if the temperature of the water with V ml rises AT C during this microwave heating period the calorie of the water is V x AT The formulae is as follows P 8330xVxAT t Our condition for the water load is as follows Room temperature...

Страница 18: ... are present at the secondary winding and fila ment winding of the power transformer It is very dangerous to work near this part when the oven is on NEVER make any voltage measurements at the high voltage circuits including the magnetron filament CARRY OUT 3D CHECKS Disconnect the leads to the primary winding of the power transformer Disconnect the filament and secondary winding connections from t...

Страница 19: ...e measuring instrument must have a volyage at least 6 volts because otherwise an infinite resistance might be shown in both directions D HIGH VOLTAGE CAPACITOR TEST CARRY OUT 3D CHECKS A Isolate the high voltage capacitor from the circuit B Continuity check must be carried out with measuring instrument which is set to the highest resis tance range C A normal capacitor shows continuity for a short ...

Страница 20: ...ble below CARRY OUT FJCHECKS Table Temperature Fuse and Thermal cut out Test Parts Name Temp fuse 15O C Thermal cut out 150X Thermal cut out 9O C Temperature of ON condition Temperature of OFF condition Indication ofohmmeter closed circuit C open circuit C When room temperature is approx 20 C Below 20 C Above 150 C Closed circuit Below 130 Above 15O C Closed circuit Below 20 C Above 90X Closed cir...

Страница 21: ...e 68 F 2O C 86 F 3O C Approx 350kR 155kR I I 1 If the meter does not indicate above resistance replace the thermistor CARRY OUT J CHECKS H MOTOR WINDING TEST CARRY OUT aCHECKS Disconnect the leads from the motor Using an ohmmeter check the resistance between the two terminals as described in the table below Table Resistance of Motor Motors Resistance Fan motor Approximately 173 Q Turntable motor A...

Страница 22: ...light up e Wrong figure appears f A certain group of indicators do not light up g The figure of all digits flicker 2 3 Other possible troubles caused by defective control unit a Buzzer does not sound or continues to sound b Clock does not operate properly c Cooking is not possible d Proper temperature measurement is not obtained M KEY UNIT TEST If the display fails to clear when the STOP CLEAR pad...

Страница 23: ... 18V D C Cooling fan motor 1 0 PROCEDURES TO BE TAKEN WHEN THE FOIL PATTERN ON THE PRINTED WIRING BOARD PWB IS OPEN To protect the electronic circuits this model is provided with a fine foil pattern added to the primary on the PWB this foil pattern acts as a fuse If the foil pattern is open follow the troubleshooting guide given below for repair Problem POWER ON indicator does not light up STEPS O...

Страница 24: ...cavity 3 Close the door 4 Touch INTELLIGENT SENSOR pad and number pads 1 and 0 Now the oven is in the intelligent sensor cooking condition and IS l 0 will appear in the display 5 Touch Start pad The oven will operate for the first 16 seconds without generating microwave en ergY NOTE ERROR will appear if the door is opend or STOP CLEAR pad is touched during first stage of sensor cooking 6 After app...

Страница 25: ...he sensor cooking operation 6 3 After approximately 20 seconds push plunger of select switch This condition is same as judgement by AH sensor 6 4 After approximately 3 seconds cooking operation turns off an audible signal will sound and the display will then revert to the time of day If the above is not the case the control unit is probably defective If the above is proper the AH sensor is probabl...

Страница 26: ...ssary for the con trol unit from the AC line voltage 3 Synchronizing Signal Circuit The power source synchronizing signal is available in order to compose a basic standard time in the clock circuit It incorporates a very small error because it works on commercial frequency 4 ACL Circuit A circuit to generate signals resetting the LSI to the initial state when power is applied 7 8 9 1 Absolute Humi...

Страница 27: ...e bridge circuit absolute humidity sensor This input is an analog input terminal from the AH sensor circuit and connected to the A D coverter built into the LSI IO 14 P47 P43 OUT Used for intial balancing of the bridge circuit absolute humidity sensor 15 P42 OUT Timina sianal outnut terminal for temnerature measurement OVEN H level GND Temperature measuring timing convection cooking L level 5V The...

Страница 28: ...r is supplied Temporar ily set to L level the moment power is supplied at this time the LSI is reset There after set at H level Internal clock oscillation freauencv settina input The internal clock frequency is set by inserting the ceramic filter oscillation circuit with resoect to XOUT terminal 28 XIN IN 29 XOUT OUT Internal clock OSCiltatiOn freouencv control outuut Output to control oscillation...

Страница 29: ...d PO3 _______________ 4th p27 _______________ 5th PO6 n p24 6th PO3 n Normally one pulse is output in every 0 period and input to the grid of the Fluo P27 4 rescent Display P24 d Ii OUT 42 P14 Seament data sianal Signal similar to P16 Kev strobe sianal Signal applied to touch key section A pulse signal is input to RO R3 terminal while one of G 5 line keys on key matrix is touched PI3 OUT 43 Seamen...

Страница 30: ...ent data sianal Signal similar to P16 Seament data sianal Signal similar to P16 Kev strobe sianal Signal applied to touch key section A pulse signal is input to RO R3 terminal while one of G 10 line keys on key matrix is touched Diait selection sianal Signal similar to P15 Seament data sianal Signal similar to P16 Kev strobe sianal Signal applied to touch key section A pulse signal is input to RO ...

Страница 31: ...nit When the unit is set in the sensor cooking mode 16 seconds clearing cycle occurs than the detector circuit starts to function and the LSI observes the initial voltage available at its IN1 terminal With this voltage given the switches SW1 to SW5 in the LSI are turned on in such a way as to change the resis When the LSI starts to detect the initial voltage at IN1 tance values in parallel with R5...

Страница 32: ...from an external power source Disconnect the touch control panel completely from the oven proper and short both ends of the stop switch on PWB of the touch control panel which brings about an operational state that is equivalent to the oven door being closed Connect an external power source to the power input terminal of the touch control panel then it is possible to check and repair the controls ...

Страница 33: ...er supply 2 Open the oven door and wedge it open 6 N B Stepl 2 and 6 from the basis of the 3D checks Discharge the H V capacitor before carring out any fur ther work 7 Do not operate the oven with the outer case removed 4 Slide the entire case back about 1 inch 3cm to free it CAUTION DISCHARGE HIGH VOLTAGE CAPACI from retaining clips on the cavity face plate TOR BEFORE TOUCHING ANY OVEN 5 Lift the...

Страница 34: ...or transformer 5 Remove one 1 screw and washer holding the high voltage rectifier from the capacitor holder 6 Remove one 1 screw holding capacitor holder to rear cabinet 4 Disconnect high voltage wire leads of capacitor from 7 Remove the high voltage capacitor from the holder OVEN LAMP SOC 1 CARRY OUT 3D CHECKS 2 Pull the wire leads from the oven lamp socketby push ing the terminal hole of the ove...

Страница 35: ...tion motor mounting angle to the heater duct and base cabinet 4 Take out the convection motor assembly from the unit The convection motor assembly is now free 5 Remove two 2 screws and nuts holding the motor to mounting angle 6 Convection motor is now free DAMPER ASSEMBLY REMOVAL 1 CARRY OUT aCHECKS 4 Remove two 2 ovenside screws holding damper motor 2 Remove cooling fan motor and magnetron refer ...

Страница 36: ...is not slanted 3 Install the fan duct to the air guide 4 Install the chassis support to the oven cavity with three 3 screws 5 Connect the wire leads to the fan motor and the thermal cut out referring to the pictorial diagram Fl hese are the position here should be nched with pliers Ta Rear view Side view STOP SWITCH UPPER LATCH SWITCH LOWER LATCH SWITCH AND MONITOR SWITCH REMOVAL 1 CARRY OUT aCHEC...

Страница 37: ...ustment STOP SWITCH UPPER LATCH SWITCH LOWER LATCH SWITCH AND MONITOR SWITCH ADJUSTMENT If those switches do not operate properly due to a misad justment the following adjustment should be made 1 Loosen the two 2 screws holding the latch hook to the flange on the oven front face I 2 With the door closed adjust the latch hook by moving it LATCH HOOK back and forth and then adjust the latch hook by ...

Страница 38: ...on limitation stan dards DOOR ADJUSTMENT The door is adjusted by keeping the screws of each hinge loose The lower oven hinge can be loosened After adjustment make sure of the following 1 Door latch heads smoothly catch the latch hook through the latch holes and the latch head goes through the center of the latch hole 2 Deviation of the door alignment from horizontal line of cavity face plate is to...

Страница 39: ...crowave ovens must be used for testing Recommended instruments are NARDA 8100 NARDA 8200 HOLADAY HI 1500 SIMPSON 380M 2 Place the oven tray into the oven cavity 3 Place the load of 275 I 5ml of water initially at 20 5 C in the center of the oven tray The water container should be a low form of 600 ml beaker with inside di ameter of approx 8 5cm and made of an electrically non conductive material s...

Страница 40: ...MMED 3 VARIABLE COKING 03NTROL HIGW 4 STARTPADTOUCHED SCHEM4TIC NOTE CONDITIONOFOVEN 1 DOORCLOSED 2 SENSOR 03oK PADTOUCHED 3 START PAD TOUCHED I I w 2 3 E 1 1 2 Ii5 J E i ii 5 LL fj 2 I 0 z E i z f 4 8 5 d z go iTi us II 6 5 a 2 da I5 f5s 6 5d 2 I r 1 I I Lj 2 I 2 x0 22 o 4 I _ 0 E l u gg 3 2 3 9 0 zs3 2 Figure O 2 Oven Schematic High or Easy Defrost or Reheat Sensor Cooking Condition 38 ...

Страница 41: ...PADTOUCHED 4 STARTPADTOUCHED i 09 us 2s i 3 k 2 F 4 4 i Figure O 3 Oven Schematic Concection Cooking Condition SCHEMATIC NOTE CONDITIONWOVEN 1 DOORCLOSED 2 MIXCOOKING PADTOUCHED 3 DES1 REDTEMP PADTOUCHED 4 STARTPADTOUCHED Figure O 4 Oven Schematic Automatic Mix Cooking Condition 39 ...

Страница 42: ...wr r prw T tlIIIIl I I I HIGH VOLTAGE COMPONENTS ASYMMETRIC 7 III II I III II III TFMP n l l I I 1 MAGNETRON I POWER SUPPLY COED IE 1 T Figure S l Pictrial Diagram _I I I I n I n I m I IFI I t 4 I m I k ...

Страница 43: ...SC a3kll33dS ION 31 A9L r110 0 a3lKGdS ION Al j STMP L a314133dS ION dl 3km Ho1w tl3dwa tK lWi KlKElANO3 tiO lOW Nv j I lllllllll i ZXsapLElCl r Eaoi J v l i la l f s1 II i HgiH H3lHMI i Cl3W 6 1 S3d i MO1 A MO1 _ L I a I if 680 Ci I I I I3tAn T LIU lzl I3 9NlLv3H dkWl NW0 I I llwl ANO ivno a LzlA 1 0 w d a ...

Страница 44: ...A B C D E F G H 1 I 2 I J I 9 I r Figure S 3 Printed Wiring Boad 1 2 I 5 6 42 ...

Страница 45: ...A1565WRPC Turntable motor cover 1AB 2 6 GFTARAOOlWRWO Oven lamp access cover 1 AC 2 7 GLEGPA013WREO Foot 4 AB 2 8 LANGKO243WRPO Capacitor holder 1 AC 2 9 LBSHC0032WREO Cord bushing 1 AB 2 10 LSTPP0008YBEO Cord anchorage Upper 1 AC 2 11 LSTPP0009YBEO Cord anchorage Lower 1 AC 2 12 MLEVPAl22WRFO Latch lever 1 AD 2 13 PCUSGAO23WRPO Cabinet cushion 1AA 2 14 PHOK A043WRFO Latch hook 1AM 3 1 DPWBFB097WR...

Страница 46: ... LSI Hybrid IC Transistor 2SB793 Transistor DTA143ES Transistor 2SA933S Transistor DTA143ES Transistor KRC102M Transistor KRA102M Transistor DTD143EA Transistor DTB143ES Transistor DTA143ES Resistor 470 ohm 1 2w Resistor 330 ohm 1 2w Resistor lk ohm 1 4w Resistor 560 ohm 1 2w Resistor 15k ohm 1 4w Resistor 36 ohm 1w Resistor 15k ohm 1 4w Resistor 3 3k ohm 1 4w Resistor 330 ohm 1w Resistor lk ohm 1...

Страница 47: ...23 4 24 4 25 4 26 4 27 4 28 4 29 4 30 4 31 4 32 4 33 4 34 4 35 4 36 4 37 4 38 4 39 4 40 4 41 4 42 4 43 2 AA 1AR 1AK 1AL 1 AK 1AM 1AF 1 AG 1AL 1AB 1AE 1AF 1AD 1AF 1AB 4 44 DOOR PARTS 1 BR BH AP AT AF AF AB AB AB 5 CDORFA584WRKO Door assembly complete 5 1 DDORFA262WRYO Door panel 5 2 GCOVHAl55WRFO Choke cover 5 3 GWAKPA142WRFO Door frame 5 4 HDECQA123WRFO Door sash right 5 5 HDECQA124WRFO Door sash ...

Страница 48: ... Screw 4mm x 8mm 8 AA 7 20 XCTSD40P08000 Screw 4rmnx 81mn 3 AA 7 21 XFPSD3OP08000 Screw 3mm x 8mm 2 AA 7 22 XFPSD40P08KOO Screw 4mm x 8mm 4 AA 7 23 XFPSD40P08000 Screw 4m x 8mm 5 AA 7 24 XFPSD60P14JSO Screw 6mm x 14mm 2 AA 7 25 XNESD40 32000 Nut 4rnmx 3 2mm 4 AA 7 26 XNEUW40 32000 Nut 4mm x 3 2mm 1AA 7 27 XOTSE40P12000 Screw 4mm x 12mm 4 AA 7 28 LX CZO047WREO Special screw 11 AA 7 29 XOTSD40P12000...

Страница 49: ...I D I n I m I 0 I 0 m b ...

Страница 50: ...R 9H55 CONTROL PANEL PARTS DOOR PARTS 3 5 I cl cl 3 9 ...

Страница 51: ...ELLANEOUS 0 6 l 0 6 2 H V C MG B e may be different than illustration H V C H V T 4 PACKING AND ACCESSORIES TRAY HOLDER TURNTABLE TRAY INSTRUCTION BOOK AND COOK BOOK MICROWAVE OV l Not replaceable items 1 2 3 4 5 I 6 49 ...

Страница 52: ... SHARI 93 SI MJ CORP 07KO 75E Prtnted in Austraha 50 ...

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