Sharp R-9A53 Скачать руководство пользователя страница 40 | Manualshive

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Содержание R-9A53

Страница 1: ...GENERAL IMPORTANT INFORMATION 1 CAUTION MICROWAVE RADIATION WARNING 1 PRODUCT SPECIFICATIONS I 2 APPEARANCE VIEW 3 OPERATION SEQUENCE 4 FUNCTION OF IMPORTANT COMPONENTS 7 SERVICING TEST PROCEDURE TOUCH CONTROL ASSEMBLY COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE MICROWAVE MEASUREMENT WIRING DIAGRAM PICTORIAL DIAGRAM CONTROL PANEL CIRCUIT PRINTED WIRING DIAGRAM PARTS LIST PACKING AND ACCESSORIES...

Страница 2: ... R 9A53 ...

Страница 3: ...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 The door is not deformed or warped E There is not any other visible damage with the oven Servicing and repair work must be carried out only by trained service engineers All the parts marked on parts list are used at voltages more than 250V SHARP CORPORA...

Страница 4: ...180 C with 10 microwave power HIGH MIX ROAST 200 C with 30 microwave power SLOW COOK 130 C for 4 hours no preheat GRILL 250 C preheat I INSTANT ACTION MULTI COOK VARIABLE COOKING CONTROL pads AUTO START CLOCK pad EASY DEFROST pad STOP CLEAR pad MEMORY pad INSTANT COOK START pad Approx 30 0 kg GENERAL INFORMATION WARNING THIS APPLIANCE MUST BE EARTHED IMPORTANT 1 The wires in this mains lead are co...

Страница 5: ...power setting if not touched HIGH is automatically se lected STOP CLEAR PAD LINSTANT ACTION PADS Touch once to cook or reheat 4 popular menu 2 SERVE QUANTITY PAD To cook two serves touch this pad prior to touching the INSTANT ACTION pad 3 SERVE QUANTITY PAD To cook three serves touch this pad prior to touching the INSTANT ACTION pad I 7 200 II8 220 c II9 230 I 4 SERVE QUANTITY PAD To cook four ser...

Страница 6: ...trol by touching the number pads and the HIGH pad of the Variable Cooking Control When the START pad is touched the following operations occur 1 The contacts of relays are closed and components connected to the relays are turned on RYI RY2 RY6 For details refer to Figure O 2 2 240 volts A C is supplied to the primary winding of the power transformer and is converted to about 3 35 volts A C output ...

Страница 7: ...nd convection motor are de energized At the end of the convection cycle if the cavity air temperature is above 9O C the circuit to RY6 will be maintained by the thermistor circuit to continue operation of the cooling fan motor until the temperature drops below 90 C at which time the relay will be de energized turning off the fan motor Relay RY5 will however open as soon as the convection cycle has...

Страница 8: ...ght of the food The shut off relays RYI RY3 RY5 and RY6 are energized turning on the oven lamp turntable motor cooling fan motor and convection motor The power supply voltage is added to the con vection heater Now the oven is in the convection cooking mode When the oven temperature has reached the pro grammed convection temperature the oven goes into the programmed cooking mode At the end of the M...

Страница 9: ...tacts open due to their being normally open contacts switch 2 As the door goes to a closed position the monitor switch contacts are first opened and then the common and normal open contacts of upper latch switch close On opening the door each of these switches operate inversely 3 If the door is opened during cooking and the common and normal open contacts of upper latch switch fail to open the mon...

Страница 10: ...and allow the damper door to open DAMPER OPEN CLOSE MECHANISM Usually the damper is in the open position except during convection cooking Damper position is set automatically by damper motor damper switch motor cam and damper shaft These components are operated by a signal that judges if microwave cooking or convection cooking operation is selected by the CPU unit Microwave Cooking Damper is in th...

Страница 11: ... in the Test Procedure section When troubleshooting the microwave oven it is IMPORTANT If the oven becomes inoperative be helpfull to follow the Sequence of Operation in per cause of a blown fuse in the monitor 1 I I 1 switch and upper latch switch circuit check the monitor switch and upper latch switch before replacing the fuse If the fuse is replaced the monitor switch should be replaced at same...

Страница 12: ...o be operating but little or no heat is pad is touched produced in oven load Food incompletely cooked or not cooked at all at end of cook c cle y Oven goes to a cook cycle but extremely uneven heating is produced in open load food Oven does not cook properly when programed for MEDIUM etc cooking powers Operates properly on HIGH Oven does not cook properly when programed in EASY DEFROST cooking mod...

Страница 13: ...53 I I 1 1 I I I i i 1 1 1 I 1 1 G 3 u s PI 6 Y zii L v 0 2 9 r E J CA tii 3 0 5 Y 2 z z r 2 rJ 3 1 s 5 E c L 3 z 8 I Y fi 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 I O 0 I I ...

Страница 14: ...ave heating period the calorie of the water is V x AT The formular is as follows Pxt 4 2 VxAT P W 4 2 x V x AT t Our condition for the water load is as follows Room temperature around 20 C Power supply Voltage 240 volts Water load 2000 ml Initial temperature IO 1 C Heating time 1 min 52 sec P 75xAT Measuring method A Use two 1 litre Pyrex beakers with a diameter of approximately of 12cms B Place 1...

Страница 15: ...er supply Voltage Rated voltage Water load 1000 g Initial temperature 1O 2 C Heating time 49 sec P 85xAT 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 ambient temperature prior to ...

Страница 16: ... Cold Warm AT1 10 C Measured output power The equation is P 85 x AT P 85 x 10 C 850 Watts JUDGMENT The measured output power should be at least f15 of the rated output power CAUTION 1 C CORRESPONDS TO 85 WATTS REPEAT MEASUREMENT IF THE POWER IS INSUFFICIENT T2 C Heat up for 51 sec RD8 903U POWER TRANSFORMER TEST DISCHARGE THE HIGH VOLTAGE CAPACITOR BEFORE TOUCHING ANY OVEN COMPO NENTS OR WIRING Di...

Страница 17: ...irection the one is probably defective and should be replaced D HIGH VOLTAGE CAPACITOR TEST I DISCHARGE THE HIGH VOLTAGE CAPACITOR BEFORE TOUCHING ANY OVEN COMPO NENTS OR WIRING I If the capacitor is open no high voltage will be available to the magnetron Disconnect the input leads and check for short or open between the terminals using an ohmmeter Checking with a high ohm scale if the high voltag...

Страница 18: ...tch circuit is blown when the door is opened check the upper latch switch and monitor switch accord ing to the Test Procedure for those switches before replacing the blown fuse If the fuse is replaced the monitor switch should be replaced at the same time If the fuse is blown by improper switch operation adjust or replace the defective switch fuse at the same time Replace the fuse and monitor swit...

Страница 19: ...sulation resistance meter The insulation resistance between convection heater terminal and cavity should be more than 1OOMR However when convection heater is hot more than 0 5MR K THERMISTOR TEST Disconnect connector E from the control unit Measure the resistance of the thermistor with an ohmmeter Connect the ohmmeter leads to Pin No s E 3 and E 4 Room Temp Resistance 20 C 30 C Approx 300R 192Q If...

Страница 20: ...t brightness is low c Only one indicator does not light up d The corresponding segments of all digits do not light up or they continue to 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 Cook...

Страница 21: ...oltage and oven power cord of CPU connector CN A of CPU connector CN A 2 2 The rated voltage is applied to primary side of power Power transformer or secondary circuit defective The rated voltage is applied to primary side of power Power transformer or secondary circuit defective transformer transformer Check and repair Check and repair 3 3 Only pattern at a is broken Only pattern at a is broken I...

Страница 22: ...wer 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 a signal resetting the LSI to the initial state when power is applied 5 Buzzer Circuit The buzzer is responds to signals from the LSI to emit noticeable sounds key touch sound and ...

Страница 23: ... I O IN Temperature measurement input OVEN THERMISTOR By inputting DC voltage corresponding to the temperature detected by the thermistor this input is converted into temperature by the A D converter built into the LSI RD935Al U PIN NO 1 8 9 1 SIGNAL 1 IN1 INO Terminal not used Connected to GND PIN NO 1 IO 14 SIGNAL j P47 P43 Terminal not used I l O IN I I O 1 OUT PIN NO 15 1 SIGNAL 1 P42 I I O j ...

Страница 24: ...Magnetron hiah voltage circuit driving signal To turn on and off the cook relay RY2 In high operation the signals holds L level during HIGH I 0 microwave cooking and H level while not cooking In other cooking modes MED HIGH MED MED I z ON MED HIGH 24 YC 6 sec LOW LOW the signal turns to H level and L level in repetition according to the power level OFF MED MED Low 12sdr ON H CND LOW 26sec r L 6s O...

Страница 25: ...O 32 1 SIGNAL vss Power source voltage 5V VC voltage of power source circuit input PIN NO j 33 1 SIGNAL j 0 Terminal not used I I O IN I I I O 1 OUT PIN NO 34 1 SIGNAL j R3 I l O 1 IN Signal coming from touch kev When any one of G l line keys on key matrix is touched a corresponding signal from PO1 PO2 PO5 PO7 P1O P11 P13 or PI 4 will be input into R3 When no key is touched the signal is held at L...

Страница 26: ...3 n P27 PIN NO j 42 1 SIGNAL j PI4 I I O OUT Senment data signal Kev strobe signal Signal similar to PI 6 Signal applied to touch key section A pulse signal is input to RO R3 terminal while one of G l 2 line keys on key matrix is touched RD939A3U PIN NO 43 1 SIGNAL PI3 I I O 1 OUT Segment data signal Kev strobe signal Signal similar to PI 6 _ Signal applied to touch key section A pulse signal is i...

Страница 27: ... I O 1 OUT Segment data signal Kev strobe signal Signal similar to PI 6 Signal applied to touch key section A pulse signal is input to RO R3 terminal while one of G 6 line keys on key matrix is touched I RD939A3U PIN NO 1 53 1 SIGNAL 1 PO1 I l O 1 OUT I Segment data signal Key strobe signal Signal similar to PI 6 Signal applied to touch key section A pulse signal is input to RO R3 terminal while o...

Страница 28: ...of the touch control panel while keeping it connected to the oven B On some models the power supply cord be tween the touch control panel and the oven proper is long enough that they may be sepa rated from each other For those models therefore it is possible to check and repair the controls of the touch control panel while keeping it apart from the oven proper in this case you must short both ends...

Страница 29: ...r is not closed CAUTION DISCONNECT OVEN FROM POWER SUPPLY BEFORE REMOVING OUTER CASE DISCHARGE HIGH VO LTAG E CAPACITOR BEFORE TOUCHING ANY OVEN COMPO NENTS OR WIRING RDAI 203U OUTER CASE CABINET REMOVAL To remove the outer case and proceed as follows I Disconnect oven from power supply 2 Remove eight 8 screws from the rear and along the side edge of the case 3 Remove the two 2 screws LHSTIX LR 4 ...

Страница 30: ...IER AND H V RECTIFIER ASS Y REMOVAL 1 Disconnect oven from power suppply and remove CAUTION WHEN REPLACING THE RECTIFIER outer case ASSEMBLY THE GROUND SIDE 2 Discharge the high voltage capacitor TERMINAL MUST BE SECURED 3 Remove one 1 screw holding the H V rectifier FIRMLY WITH A GROUNDING terminal to the capacitor holder SCREW 4 Disconnect the rectifier assembly from the capacitor I HIGH VOLTAGE...

Страница 31: ...e 2 Discharge the high voltage capacitor 3 Disconnect wire leads from the convection motor Remove the convection fan belt and pulley M 4 Remove two 2 screws holding the convection motor mounting angle to the heater duct and base cabinet 5 Take out the convection motor assembly from the unit The convection motor assembly is now free 6 Remove two 2 screws and nuts holding the motor to mounting angle...

Страница 32: ...ange 4 Make sure that monitor switch is operating properly Refer to chapter Test Procedure and Adjustment procedure STOP SWITCH UPPER LATCH SWITCH LOWER LATCH SWITCH AND MONITOR SWITCH ADJUSTMENT tf those switches do not operate properly due to a mis adjustment the following adjustment should be LATCH made 1 Loosen the two 2 screws holding the latch hook to the flange on the oven front face 2 With...

Страница 33: ...Remove the four 4 screws holding the panel frame to the back plate 3 Separate the panel frame and back plate 4 Remove the five 5 screws holding the control unit to the panel frame 5 Lift up the control unit and disconnect the key connector from the control unit 6 Now the control unit and frame assembly are sep arated DOOR DISASSEMBLY Remove door assembly refer to Door Replacement Replacement of do...

Страница 34: ...n emission limitation standards 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 be less than 1 Omm 3 The door is positioned with its face depressed to ward the cavity face plate 4 Re insta...

Страница 35: ...microwave ovens must be used for testing Recommended instruments are NARDA 8100 NAR DA 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 conductive material ...

Страница 36: ...ematic OFF Condition Figure O 2 Oven Sche bmatic High Cooking Condition OVEN THERM0 CUT OUT 15o c MONITOR RESISTOR MONITOR SWITCH o a 2ow 0 Note w uaA UPPER LATCH SW I TCH SCHEMATIC NOTE CONDITION OF OVEN 1 DOOR CLOSED 2 COOKING TIME PROGRAMMED 3 VARIABLE COOKING CONTROL HIGH 4 START PAD TOUCHED n OVEN LAMP w FAN MOTOR h _ CONTROL UN1 T E S TAB I QAMPER MOTOR I 1 I CONVECTION MOTOR TTM TURNTABLE M...

Страница 37: ...R H V RECTIFIER MAQNETFI N LOWER LATCH SWITCH OVEN THERM0 CUT OUT 150 c UPPER LATCH SWJTCH SCHEMATIC NOTE CONDITION OF OVEN 1 DOOR CLOSED 2 MIX COOKING PAD TOUCHED 3 DESIRED TEMP TOUCHED 4 START PAD TOUCHED MONITOR RESISTOR MONITOR SWITCH 0 a 2ow Note I 0 CONTROL UN IT DAMPER MOTOR TURNTABLE MOTOR 240V oHz BRN l7 m FUSE MBA POWER H V RECTIFIER MAQNETRON 3 J FM THERI l CUT OUT 90 c LOWER 1 ATCH SWI...

Страница 38: ...1 R 9A53 1 2 3 4 5 6 A 36 ...

Страница 39: ...Figure S 2 Control Panel Circuit i _ ___YCI AI _iy _ I_ _ _ i _ __ ...

Страница 40: ...m k 9A53 i i i I j I i I f 1 i I I i I I I I 1 I 2 3 4 5 6 _ A I _ _ y L _ L __ _ x C D E F G Figure S 3 Printed Wiring Board H 1 2 3 4 5 6 38 ...

Страница 41: ...1 AW I FHNG A092WRMO Oven hinge lower 1 AF GCABDA037WRWO Rear cabinet AT 2 4 GCABUA277WRPO Outer case cabinet t BA 2 5 GCOVHA156WRPO Turntable motor cover 1 AB 2 6 GFTARAOOlWRWO Oven lamp access cover AC 2 7 GLEGPA013WREO Foot 4 AB 2 8 LANGK0243WRPO Capacitor holder 1 AC 11 LBSHC0032WREO Cord bushing AB LSTPP0008YBFO Cord anchorage upper AC 2 11 LSTPP0009YBFO Cord anchorage lower 1 AC 2 12 MLEVPA1...

Страница 42: ...r PKM22EPT RTRNPA023DREO Transformer RH VZAOlODREO Varistor 15G471K RH EZA105DREO Zener diode RD4 3ESB2 FPNLCA910WRKO Control panel flame with key unit JBTN A606WRFO Open button MSPRDA009WREO Open button spring LANGTA197WRWO Control panel back plate MLEVFA042WRWO Open lever NSFTTA030WREO Open shaft XEPSD30P12XSO Screw control unit mtg XCPSD40P12000 Screw control panel back plate mtg OVEN PARTS FBR...

Страница 43: ...ower latch head 5 8 MSPRTA007WREO Latch spring 5 9 NSFTTA044WREO Latch shaft 5 10 PGLSPA333WREO Door glass MISCELLANEOUS 6 1 6 2 I 6 5 66 r 9 6 10 6 11 6 12 6 13 6 14 7 1 7 2 7 3 7 4 7 5 I r 7 JO FAMI A059WRMO High rack FAMI A058WRMO Low rack TCADCA348WRRO Cook book TINSEA556WRRO Operation manual LBNDK0012YBEO Wire holder WH 1 84mm FW VZA810WREO Main wire harness QW QZA099WREO High voltage wire A ...

Страница 44: ...p mounting angle 4 AA high voltage rectifier assembly MG air guide K and thermistor harness grounding mtg 7 23 XFPSD40P08000 Screw turntable motor and magnetron mtg 5 AA 7 24 XFPSDGOP14JSO Screw power transformer mtg AA 7 25 XNESD40 32000 Nut cooling fan motor and AA upper lower latch heads mtg 7 26 XNEUW40 32000 Nut convection fan mtg 1 AA 7 27 XOTSE40P12000 Screw outer case cabinet mtg 4 AA 7 28...

Страница 45: ...R 9A53 7 r A B C D E F G H 1 2 3 I 4 5 6 1 2 3 4 5 6 43 IA B C D E F G H ...

Страница 46: ... DOOR PARTS i 2 P CONTROL MISCELLANEOUS PANEL PARTS b4 V C MG IH v Cl IH V Tl xc Actual wre harness may be dliferent than lllustratlon PACKING AND ACCESSORIES s PACKING ADD KIT CPADElAOEL WRKO Not replaceble items 1 2 3 4 5 6 44 ...

Страница 47: ... fl 9A53 45 ...

Страница 48: ...__ _ _ __ __ ____r rs r _ _m I _ _ _ __I____ r 1 _ _ i Ts_yp_ _L is I 0 1 2 FL C 2 2 m ...

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