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R-204(W)

Figure S-3. Printed Wiring Board

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Содержание R-204

Страница 1: ...ENT REPLACEMENT AND ADJUSTMENT PROCEDURE 18 MICROWAVE MEASUREMENT 24 TEST DATA AT A GLANCE 25 WIRING DIAGRAM 25 PICTORIAL DIAGRAM 26 CONTROL PANEL CIRCUIT 27 PRINTED WIRING BOARD 28 PARTS LIST 29 S8102R204PHW MICROWAVE OVEN MODEL R 204 W In interests of user safety the oven should be restored to its original condition and only parts identical to those specified should be used SERVICE MANUAL SHARP ...

Страница 2: ...käytetään tai jos se kytketään väärin Kaikkien mikroaaltoliitäntöjen sekä syöttö että ulostulopuolella aaltoputkien laippojen ja tiivisteiden tulee olla varmistettuja Mikroaaltouunnia ei koskaan saa käyttää ilman kuormaa jossa mikroaaltoenergiaa kuluu Avoimeen aaltoputkeen tai antenniin ei koskaan saa katsoa virran ollessa kytkettynä ADVARSEL MIKROBØLGESTRÅLING Personell må ikke utsettes for mikro...

Страница 3: ...red to provide Sharp Corp Service engineers with Operation and Service Information It is recommended that service engineers carefully study the entire text of this manual so they will be qualified to render satisfactory customer service WARNING Note Thepartsmarked areusedatvoltagemore than 250V Parts List Anm Delar märket med har en spänning överstigande 250V Huom Huolto ohjeeseen merkitty tähdell...

Страница 4: ...nning en stroom kunnen voortbrengen Contact met de volgende onderdelen kan elektrocutie tot gevolg hebben Hoogspanningscondensator hoogspanningstransformator magnetron hoogspanningsgelijkrichter hoogspannings kabelboom VERGEET DE VOLGENDE 3 STAPPEN NIET 1 Haal de stekker uit het stopcontact 2 Open de deur en zorg ervoor dat hij niet dicht kan vallen 3 Ontlaad de hoogspanningscondensator PAS OP VOO...

Страница 5: ...an los dos minutos temporizador a cero compruebe cuidadosamente que el agua se ha calentado Si el agua permaneciese fría efectúe las comprobaciones 3D y vuelva a examinar las conexiones de los componentes que han sido probados Cuando haya terminado la intervención en el equipo y el horno haya sido ensamblado de nuevo completamente deberá comprobar la potencia de salida de microondas y realizar una...

Страница 6: ... caso eseguire i tre controlli sopra citati e quindi scollegare i connettori dal primario del trasformatore Assicurarsi che tali connettori non vengano a contatto con altri componenti ne con il telaio del forno fare uso se necessario di nastro isolante Al termine dell intervento eseguire nuovamente i tre controlli e ricollegare i conduttori al primario del trasformatore QUATTRO VERIFICHE IMPORTANT...

Страница 7: ...y Dimensions Width 322 mm Height 187 mm Depth 336 mm Turntable diameter 272 mm Control Complement Timer 0 30 minutes Microwave Power for Variable Cooking Repetition Rate 800W Full power throughout the cooking time 560W approx 70 of Full Power 400W approx 50 of Full Power 240W approx 30 of Full Power 80W approx 10 of Full Power Set Weight Approx 12 kg GENERAL INFORMATION WARNING THIS APPLIANCE MUST...

Страница 8: ...d sealing surfaces 10 Safety door latches 11 Ventilation openings 12 Outer case 13 Power cord Timer 0 30 Min Light display Microwave power control Door opening button Menu guide These are the cooking guides for 1 serve Use 800W power level Turntable Roller stay Seal packing 1 Place the roller stay on the floor of the oven cavity engaging shaft into turntable motor shaft 2 Then place the turntable ...

Страница 9: ...OOKING 1st interlock switch COM NO Closed Open Monitor switch COM NC Open Closed 2nd interlock relay control switch COM NO Closed Open The circuits to the high voltage transformer fan motor turntable motor and the oven lamp are cut off when the 1st interlock switch SW1 and 2nd interlock relay control switch SW3 are made open 6 MONITOR SWITCH CIRCUIT The monitor switch SW2 is mechanically controlle...

Страница 10: ... heads are moved upward and released from latch hook Now the door will open Figure D 1 Door Open Mechanism IST INTERLOCK SWITCH SW1 AND 2ND IN TERLOCK RELAY CONTROL SWITCH SW3 1 When the oven door is closed the contacts COM NO must be closed MONITOR SWITCH SW2 1 When the oven door is closed the contacts COM NC must be opened 2 When the oven door is opened the contacts COM NC must be closed 3 If th...

Страница 11: ... light when in operation Fan motor does not operate Turntable motor assembly does not operate Oven or electrical parts does not stop when timer knob is at 0 Oven seems to be operating but little or no heat is produced in oven load Microwave power level is set at 800W Oven does not operate properly during the variable cooking condition except 800w cooking condition Oven goes into cook cycle but shu...

Страница 12: ...0 g Initial temperature T1 10 1 C Heating time 52 sec Mass of container mc 330 g T2 Final Temperature P 80 x T 0 55 x mc T2 T0 52 Measuring condition 1 Container The water container must be a cylindrical borosilicate glass vessel having a maximum material thickness of 3 mm and an outside diameter of approximately 190 mm 2 Temperature of the oven and vessel The oven and the empty vessel are at ambi...

Страница 13: ...l three winding The following readings should be obtained a Primary winding 2 4 ohms approximately b Secondary winding 185 ohms approximately c Filament winding less than 1 ohm If the readings obtained are not stated as above then the high voltage transformer is probably faulty and should be replaced CARRY OUT 4R CHECKS C HIGH VOLTAGE RECTIFIER TEST CARRY OUT 3D CHECKS Isolate the high voltage rec...

Страница 14: ...itor is normal If incorrect reading are obtained the high voltage capacitor must be replaced CARRY OUT 4R CHECKS E SWITCH TEST Table Terminal Connection of Switch Plunger Operation COM to NO COM to NC Released Open circuit Short circuit Depressed Short circuit Open circuit COM Common terminal NO Normally open terminal NC Normally close terminal If incorrect readings are obtained make the necessary...

Страница 15: ...the magnetron Check them and replace the defective parts and the high voltage fuse CARRY OUT 4R CHECKS CAUTION ONLY REPLACE HIGH VOLTAGE FUSE WITH THE CORRECT VALUE REPLACE MENT J HIGH VOLTAGE FUSE TEST K CONTROL PANEL ASSEMBLY TEST The control panel consists of circuits including semiconductors such as LSI ICs etc Therefore unlike conventional microwave ovens proper maintenance can not be perform...

Страница 16: ...l pattern added to the input circuit 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 CARRY OUT 3D CHECKS STEPS OCCURRENCE CAUSE OR CORRECTION 1 The rated AC voltage is not present between Check supply voltage and oven power cord Pin No 3 of the 2 pin connector CN A and the c...

Страница 17: ...ock Relay Control Switch A switch to tell the LSI if the door is open or closed 7 Relay Circuit To drive the magnetron fan motor turntable motor and light the oven lamp 8 Encoder The encoder generates the pulse signal and the pulse signal is sent to the LSI 9 Indicator Circuit Indicator elements are the Light emitting diodes LD1 LD24 This circuit consists of 4 digits and 6 segments 10 Potentiomete...

Страница 18: ...al to sound buzzer Completion sound 17 P11 IN Signal coming from encoder Signal similar to INT Pulse signals are input into P11 18 P10 OUT Oven lamp turntable motor and fan motor driving signal Square Waveform 50Hz To turn on and off shut off relay RY1 The square waveform voltage is delivered to the relay RY1 driving circuit and relay RY2 control circuit 19 P03 OUT Digit selection signal Signal is...

Страница 19: ... influenced by the surrounding high voltage power source static electric ity charge in clothes etc and sometimes it is not fully protected by the built in protection circuit In order to protect CMOS LSI 1 When storing and transporting thoroughly wrap them in aluminium foil Also wrap PW boards con taining them in aluminium foil 2 When soldering ground the technician as shown in the figure and use g...

Страница 20: ...e door and wedge the door open 3 Discharge the high voltage capacitor and wait for 60 seconds 2 Don t let the wire leads touch to the following parts 1 High voltage parts Magnetron High voltage transformer High volt age capacitor High voltage rectifier assembly and High voltage fuse 2 Hot parts Oven lamp Magnetron High voltage transformer and Oven cavity 3 Sharp edge Oven cavity Waveguide flange o...

Страница 21: ...OLTAGE RECTIFIER ASSEMBLY 1 CARRY OUT 3D CHECKS 2 Disconnect the wire leads main wire harness from power transformer 3 Disconnect the lead from magnetron filament 4 Disconnect the leads of the power transformer from high voltage capacitor 5 Remove the two 2 screws holding the transformer to bottom plate from the upper side 6 Remove the remaining two 2 screws from the bottom 7 Remove the transforme...

Страница 22: ...8 Remove the turntable motor from the oven cavity 9 Remove the TTM packing from the turntable motor 10 Now the turntable motor is free Re install 1 Re install the TTM packing 2 Re install the turntable motor with theTTM packing with the single 1 screw 3 Re connect the wire leads to the turntable motor 4 Insert the tab of the turntable motor cover into the hole of the bottom plate 5 Re install the ...

Страница 23: ...ws to oven flange 4 Install the switch lever to the oven cavity 5 Make sure that the monitor switch is operating properly and check continuity of the monitor circuit Refer to chapter Test Procedure and Adjustment procedure 1ST INTERLOCK SWITCH SW1 2ND INTERLOCK RELAY CONTROL SWITCH SW3 AND MONITOR SWITCH SW2 ADJUSTMENT Power Supply Cord Oven Cavity Back Plate Screw Green Yelow Wire Brown Wire Fuse...

Страница 24: ...witch are operatingproperly Refertochapter TestProce dures B An approved microwave survey meter should be used to assure compliance with proper micro wave radiation emission limitation standards After any service make sure of the following 1 Door latch heads smoothly catch latch hook through latch holes and that latch head goes through center of latch hole 2 Deviation of door alignment from horizo...

Страница 25: ... adhesive tape on the backing film of the sealer film as shown in Fig C 7 2 Tear the backing film by pulling the adhesive tape 3 Put the pasted side of the sealer film on the door panel Figure C 7 Sealer film Sealer film Backing film Adhesive tape ...

Страница 26: ...e standard for microwave ovens must be used for test ing 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 15ml of water initially at 20 5 C in the centre of the oven tray The water container should be a low form of 600 ml beaker with inside diameter of approx 8 5cm and made of an electrically non condu...

Страница 27: ...ITOR SWITCH CONTROL UNIT 2ND INTERLOCK RELAY 2ND INTERLOCK RELAY CONTROL SWITCH 1ST INTERLOCK SWITCH B2 A3 OL FM TTM TF TEMPERATURE FUSE 120 C OVEN N O RY 1 COM A1 RY 2 MONITOR RESISTOR 0 8 20W EARTH 230V 50Hz BLU BRN LIVE NEUTRAL G Y FUSE M8A N L LINE CROSS CAPACITOR 0 068µ AC250V NOISE SUPPRESSION COIL LINE BYPASS CAPACITOR 0 0022µ AC250V LINE BYPASS CAPACITOR 0 0022µ AC250V NOISE FILTER UNIT H ...

Страница 28: ...WITCH COM COM COM ORG GRY ORG N RED WHT L BLK N C N O N O GRY GRY RED WHT R MONITOR RESISTOR SW3 2ND INTERLOCK RELAY CONTROL SWITCH GRY GRY T HIGH VOLTAGE TRANSFORMER F2 HIGH VOLTAGE FUSE BLK G Y B L U B R N EARTH LIVE N E U T R A L POWER SUPPLY CORD NOISE FILTER OCEN CAVITY BACK PLATE WHT WHT RED PNK WHT CONTROL UNIT GRY ORG RED WHT WHT CN A CN B 2 ORG 1 3 ORG GRY WHT 2 1 COM ORG CN A 1 3 1 2 CN ...

Страница 29: ...PECIFIED 1 10W 5 IF NOT SPECIFIED 0 01µF 50V R1 100 2w Q1 KTA1274 C4 47µ 16v VC C5 0 1µ 50v CNVSS RESET P21 INT DOOR BZ P20 D5 D4 D3 D2 XOUT D3 XIN D4 VSS D5 VDD AIN2 AIN3 P00 P01 P02 P03 P10 P11 CNTR INT D0 D1 P20 C20 0 1µ 50v C6 0 1µ 50v R5 4 7k R31 15k R50 150 1 4w R51 150 1 4w R52 150 1 4w R53 150 1 4w R54 150 1 4w R55 150 1 4w LD5 LD11 LD17 LD23 LD4 LD10 LD16 LD22 LD3 LD9 LD15 LD21 LD2 LD8 LD...

Страница 30: ...JP6 JP10 JP11 JP14 C21 JP18 Q1 Q20 Q21 D22 OM DU D21 VRS1 T1 P S 7 6 5 4 3 2 1 Q10 D4 D2 D3 D1 R10 ZD3 Q24 B B B B B E E E E E JP19 JP22 JP21 JP20 JP13 JP12 C8 Q22 Q2 CNB ZD2 1 2 3 2 1 D20 D20 VR1 C1 B B E E DIP JP4 JP3 R53 JP5 JP7 JP8 JP9 SW1 JP15 JP23 SP1 C4 R2 R1 RY2 RY1 CNA 3 J1 1 ZD1 Q40 E B JP16 JP17 Q53 Q52 Q51 Q50 E E E E B B B B C B A ...

Страница 31: ...ower change knob 1 AR 3 7 MSPRCA050WRE0 Button spring 1 AB 3 8 MSPRPA096WREZ Spring 1 AG 3 9 XEPSD30P08XS0 Screw 3mm x 8mm 4 AA OVENPARTS 4 1 PHOK A122WRFZ Latch hook 1 AM 4 2 LBNDKA038WRP0 Capacitor holder 1 AF 4 3 NFANJA029WRE0 Fan blade 1 AK 4 4 PDUC A777WRPZ Fan duct 1 AP 4 5 FOVN A483WRTZ Oven cavity 1 BF 4 6 GCOVHA425WRPZ Turntable motor cover 1 AK 4 7 MLEVPA241WRFZ Switch lever 1 AG 4 8 PCO...

Страница 32: ...REF NO PART NO DESCRIPTION Q TY CODE 7 7 XHPSD40P08000 Screw 4mm x 6mm 3 AA 7 8 XOTSD40P12RV0 Screw 4mm x 12mm 5 AA 7 9 XOTSE40P08000 Screw 4mm x 8mm 2 AA HOW TO ORDER REPLACEMENT PARTS To have your order filled prompty and correctly please furnish the following information 1 MODEL NUMBER 3 PART NO 2 REF NO 4 DESCRIPTION ...

Страница 33: ...4 5 6 1 2 3 4 5 6 OVEN PARTS 7 8 2 1 7 8 7 8 7 8 7 8 OL 6 3 4 11 R 4 3 7 3 7 5 2 2 4 7 4 10 4 2 6 1 6 2 7 3 7 2 7 3 7 9 7 9 FM T 7 1 4 5 7 3 7 6 7 3 7 2 7 1 C F2 SW1 SW2 SW3 TTM 1 3 4 1 7 2 2 2 4 6 MG TF 4 9 2 3 F1 4 8 4 4 7 1 7 1 1 1 1 2 7 7 7 4 4 9 ...

Страница 34: ... D E F G H A B C D E F G H 2 3 4 5 6 1 2 3 4 5 6 5 2 6 4 5 5 5 3 5 4 5 6 5 7 5 1 Actual wire harness may be different than illustration 3 9 3 9 3 1 3 8 3 2 3 3 3 5 3 6 3 7 3 4 CONTROL PANEL PARTS DOOR PARTS MISCELLANEOUS ...

Страница 35: ...ION BOOK 6 2 TURNRTABLE SUPPORT INTO THE OVEN CAVITY Not replaceable items TRAY PAD ASSY CPADBA287WRKZ PACKING CASE MICROWAVE OVEN TOP PAD ASSEMBLY FPADBA459WRKZ WRAP COVER SSAKHA014WRE0 SPAKCD635WREZ BOTTOM PAD ASSEMBLY FPADBA460WRKZ DOOR PROTECT SHEET SPADPA580WRE0 ...

Страница 36: ...34 R 204 W 01 SHARP CORP 8S1 31E Printed in Germany ...

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