Sharp R-8380 Скачать руководство пользователя страница 25 | Manualshive

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Содержание R-8380

Страница 1: ...d should be used RD16101 U TABLE OF CONTENTS Page FOREWORD 1 CAUTION MICROWAVE RADIATION 1 PRODUCT DESCRIPTION 2 OPERATING INSTRUCTIONS 3 OPERATION 4 SERVICING 11 TOUCH CONTROL PANEL ASSEMBLY 21 COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE 30 MICROWAVE MEASUREMENT PROCEDURE 35 PICTORIAL DIAGRAM 36 CONTROL PANEL CIRCUIT 37 PRINTED WIRING BOARD 38 PARTS LIST 39 PACKING AND ACCESSORIES 48 SHARPCORP...

Страница 2: ...iven to avoid electrical shock and microwave radiation hazard RD361 OZU CAUTION MICROWAVE RADIATION Personnel should not be exposed to the microwave energy which may radiate from the magnetron or other microwave generating devices if it is improperly used or connected All input and output microwave connections waveguidesflanges and gaskets must be secured Never operate the device without a microwa...

Страница 3: ...ameter Control Complement m I I 330mm Touch Control System Clock I 00 12 59 Timer 0 99min 99 sec Microwave Cooking Control 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 Control Range 40 C 70 C to 250 C SENSOR COOK pad COMPU COOK pad C...

Страница 4: ...CTION PADS Touch to cook for each function VARIABLE COOKING CONTROL PADS Touch to select microwave power setting If not touched HIGH is automatically selected 1 minute at HIGH or increase TIMER HOLD PAD Touch to set minute timer or HOLD function AUTO START CLOCK PAD Touch to set clock or auto start time 0 II STOP CLEAR PAD Touch to erase during programming Touch once to stop operation of oven duri...

Страница 5: ...er oven lamp etc are turned off and the generation of microwave energy is stopped The oven will revert to the OFF condition 6 When the door is opened during a cook cycle upper latch switch lower latch switch and stop switch are activated with the following results The circuits to the turntable motor the cooling fan motor and the high voltage components are deenergized the oven lamp remains on and ...

Страница 6: ...energized At the end of the convection cycle if the cavity air temperature is above 118 C the cir cuit to RY2 will be maintained by the thermistor circuit to continue operation of the cooling fan motor unit the temperature drops below 118 C at which time the relay will be de energized turning off the fan motor Relay RY3 will however open as soon as the convection cycle has ended turning off the co...

Страница 7: ...ng 3 Touch START pad 4 The coil of shut off relays RY2 RY4 are energized the oven lamp and cooling fan motor are turned on but the power transformer is not turned on After about 16 seconds the micro relay is ener gized The power transformer is turned on micro wave energy is produced and first stage is started The 16 seconds is the cooling time required to re move any vapor from the oven cavity and...

Страница 8: ...R 8380 7 ...

Страница 9: ...A 8380 9 L LII J z II 1 1 I F 8 ...

Страница 10: ...ndition contacts open due to their being normally open contact switches 2 As the door goes to a closed position the monitor switch contacts are first opened and upper latch switch contacts are closed and then the stop switch and the lower latch switch contacts close On opening the door each of these switches op erate inversely 3 If the door is opeped during cooking and the upper latch switch and l...

Страница 11: ...r and then the control unit causes the heater relay to operate thus the current to the heating element is turned ON OFF own I Convrctlori 7 P aqe I T conic fl r HearPr iurnlablr ROILER STAY Motor Figure D 2 Convection Cooking System Figure D 3 Damper Mechanism DAMPER OPEN CLOSE MECHANISM Usually the damper is in the open position except during convection cooking Damper position is set automaticall...

Страница 12: ...time of day should appear in disotav Oven lamp does not light with No power in home door opened Open wire in power cord or wire harness r f 1 I 1 I OFF CONDITION Shorted wire in power cord or wire har ness Shorted wire in power cord or wire har ness Shorted wire in power cord or wire har ness Defective monitor switch No power at outlet Blown fuse M8A Blown magnetron temp fuse Defective fan thermal...

Страница 13: ...duced in j Defective micro relay oven load Food incompletely cooked or not cooked at all at end of cookcycle Defective power transformer Defective high voltage rectifier assembly Procedure B I I Procedure C j Defective high voltage capacitor Defective control unit Procedure A Procedure M 1 Procedure D Procedure 0 Open or loose wiring to above compo Check and repair wiring nents Low voltage Dirty o...

Страница 14: ...Shorted wire to thermistor Thermistor shorted Check and repair wiring Procedure L Open or loose wire connection to thermistor Check and repair wiring Oven stops after about 3 minutes since START pad is touched I Thermistor opened Lower than preset tmperature j Low power supply voltage Cooling fan motor runs Thermistor shorted intermitantly or all the time Convection cycle runs 2 mintes Thermistor ...

Страница 15: ... water load is as follows Water load 2000 ml Heating time I 29 seconds P 65x AT i Measuring method s 1 Put the water load of two 2 litres on the center of ihe oven shelf The water load should be arranged in two 2 Pyrex beakers the size of which is one 1 litre and be placed at right and left side by side on the oven shelf 2 Measure the temperature of water before heating and also after heating duri...

Страница 16: ...ctifier SHORT PROTECTOR TEST D Isolate the high voltage rectifier assembly from the circuit Using the highest ohm scale of the meter read the resistance across the short protector terminals reverse the leads to the short protector terminals and observe meter reading If an infinite resistance is read in both directions the rectifier is good If a short is indicated in either direction the one is pro...

Страница 17: ...nuity check across the thermal cut out terminals should indicaeflosed circuit unless the temperature of the oven thermal cu oGf aches approximately 104 C The thermal cut out closes automatically at approximatefyy C j If im proper operatjonis indicated replace thermal cut out When the oven thermal cut out opens it indicates overheating of the heater duct Check the convection motor and convection fa...

Страница 18: ...cts are closed Without 12 volts D C applied to the relay coil 1 and 6 an ohmmeter 30 should indicate those contacts are opened If improper operation is lo indicated replace the relay If proper operation is indicated check for loose on broken wire connections COIL A continuity check of the relay coil should indicate approximately 160 Q If the motor does not imdicate above ohms replace the relay lFi...

Страница 19: ...ective control unit Replace the control unit 2 l In connection with pads a When touching the pads a certain group of pads do not produce a signal b When touching the pads no pads produce a signal 2 2 In connection with indicators a At a certain digit all or some segments do not light up b At a certain digit brightness is low c Only one indicator does not light up d The corresponding segments of al...

Страница 20: ...lled and screws tightened 1 Fill approximately 200 milliliters 7 2 oz of tap water in a 1000 milliliter measuring cup 2 Place the container on the center of tray in the oven cavity 3 Close the door 4 Touch SENSOR COOK pad and number pad 2 Now the oven is in the sensor cooking condition and SC 2 will appear in the display 5 Touch Start pad The oven will operate for the first 16 seconds without gene...

Страница 21: ...COM Rl R2 10011 f 1 1 2W R3 10kli t 5 1 4W R4 12klZ I 5 1 4w Sensor Dummy Resistor Circuit CRD82Q09U Q PROCEDURES TO BE TAKEN WHEN THE FOIL PATTERN ON THE PRINTED WIRING BOARD PWB IS OPEN e To protect the electronic circuits this model is provided with a fine foil pattern added to the primary on the PWB and this fine pattern service as a substitute coil If the foil pattern is open follow the troub...

Страница 22: ... order to compose a basic standard time in the clock circuit It accompanies 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 supplied 5 Buzzer Circuit The buzzer is responsive to signals from the LSI to emit noticing sounds key touch sound and completion sound 6 Temperature Measurement Circu...

Страница 23: ...TTerminal not used Connected to GND IN3 IN2 1 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 I IN1 IN AH sensor input This input is an analog input terminal from the AH sensor circuit and connected to the A D converter built into the...

Страница 24: ...evel otherwise 19 P36 OUT 20 P35 OUT Terminal nat used Heating element driving signal To turn on and off the heater relay L level during convection cooking H level otherwise During convection cooking the signal becomes H level when the temperature of the oven cavity exceeds the predetermined temperature _ 21 P34 OUT Oven lamp driving signal Square waveform 50Hz To turn on and off shut off relay RY...

Страница 25: ...d buzzer A Key touch sound 8 Completion sound C When the temperature of the oven cavity reaches the preset temperature in the pre heating mode or when the preheating hold time 15 minutes is elapsed 0 12WC d 2 4rec B 1 2 C Signal synchronized with commercial power source frequency This is the basic timing for all time processing of LSI A LJND I 20msec J ii 5vi Damper motor relay driving signal To t...

Страница 26: ...O1 P03 PO5 PO6 and PlO will be Input into R3 When no key IS touched the signal IS held at L level IN Signal similar to R3 When either one of G 2 me keys on key matrix IS touched a corresponding signal will be input into R2 Signal similar to R3 When either one of G 3 line keys on key matrix is touched a corresponding signal WI be input into Rl 36 Rl IN 37 RO IN Signal similar to R3 When either one ...

Страница 27: ...7 line keys on key matrix Description Digit selection signal The relation between digit signal and digit are as follows Digit signal digit Digit signal digit PI6 lst PO4 4th P13 2nd PO0 5th PO7 3rd P25 6th Normally one pulse is output in every fL period and input to the grid of the Fluorescent Display 150HZl 1 r K _ GNcl Segment data signal Signal similar to P17 Digit selection signal Signal simil...

Страница 28: ...trix is topched 7 Digit selection signal Signal similar to P16 OUT OUT 4 53 PO1 I t 54 PO0 OUT c T I 55 I P27 OUT I Segment data singal Signal similar to P17 2 Key strobe signal Signal applied to touch key section A pulse singal is input to RO R3 terminal while one of G l 1 lilne keys on key matrix is touched 56 1 P26 OUT 1 Segment data signal Signal similar to p17 2 Key strobe signal Signal appli...

Страница 29: ...t in the Sensor Cooking mode 16 seconds later 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 resistance values in parallel with R50 1 Changing the resistance values results in that there is the same potential at both F 3 terminal of...

Страница 30: ...contact with the oven proper 5 On some models on the other hand the power supply cord between the touch control panel and the oven proper IS so long that they may be separated from each other For those models therefore It IS allowed 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 of the door sensing on PW...

Страница 31: ...ransformer into two metal tabs of the base cabinet Make sure the transformer is mounted correctly to the corners underneath those tabs After re installing the transformer secure the transformer with two 2 screws to the cabinet base one is with outer tooth washer and the other is without outer tooth washer Re connect the wire leads primary and high voltage and high voltage lead to the transformer a...

Страница 32: ...older 11 Remove one 1 screw holding the high voltage 14 Now high voltage capacitor is free rectifier from the capacitor holder DA MER ASSEMBLY REMOVAL 1 Disconnect oven from power supply and remove outer case 2 Discharge the high voltage capacitor 3 Disconnect wire leads from damper motor and damper switch 4 Remove three 3 screws holding the chassis suport from rear cabinet control mounting back p...

Страница 33: ...tabs holding upper latch switch stop switch 2nd monitor switch in place 9 Remove two 2 screws and two 2 nuts holding lower latch switch to latch hook 5 tie install control panel assemory HEATER UNIT ASSEMBLY HEATING ELEMENT CONVECTION FAN CONVECTION REMOVAL MOTOR THERMISTOR out of convection heater insulator 1O Now the convection heater is free 11 Remove the two 2 screws holding the thermistor to ...

Страница 34: ...e door can be opened 3 The monitor switch contacts close when the door is opened 4 Re install outer case and check for microwave leakage around the door with an approved micro wave survey meter Refer to Microwave Measure ment Procedure STOP SWITCH car MONITOR SWITCH LOWER LATCH SWITCH I LATCHLEVER DOOR OPEN LEVER LATCH LEVER P _ _ g c I y XL _j _ _ I 2 CPEN BUTTaN Figure C 2 Latch Switches DOOR DI...

Страница 35: ...with proper microwave radiation emission limitation standars The door can be adjusted by keeping the screws of each hinge loose The lower oven hinge can be loos ened with screw driver After adjustment make sure of the following 1 2 3 4 Door latch heads smoothly catch the latch hooks through the latch holes and also the latch head goes through the center of the latch hole Deviation of the door alig...

Страница 36: ...ormance standard for microwave ovens must be used for testing 2 3 4 5 6 Recommended instruments are NARDA 8100 NAR DA 8200 HOLADAY HI 1500 SIMPSON 380M Place the oven tray into the oven cavity Place the load of 275 f15ml of water initially at 20 f5 C in the center 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 electric...

Страница 37: ...R 8380 1 2 3 I I 4 5 6 A k B G lH J 1 zi IT I e on g N 0 lDi D _ L IliT g z I E Z 8 II II 1 2 3 4 5 6 36 ...

Страница 38: ...R 8380 1 2 3 4 5 8 2 P 1 i B o c E 6 5 6 St 9 z 15 P i8 I _ t B I I 6 Q I I a I 6 37 ...

Страница 39: ...1 2 3 4 5 I 6 I Figure S 3 Printed Wiring Board 1 2 3 I 4 5 6 38 ...

Страница 40: ...ssembly QFS CAOlOWREO Fuse M8 AK AS AV AU AX 11 15 t E BK it BG AE Il 18 l 19 AP AD AH AP BA AE CABINET PARTS 1 IAZ 2 1 GCABUA171WRPO Outer case cabinet 2 2 TMAPCA326WRRO Schematic diagram 2 3 GDAI A075WRWO Base cabinet 2 4 GLEGP0023WREO Foot 2 5 GCABDAO25WREO Rear cabinet 2 6 Unit angle 2 7 2 8 2 9 2 9A Turntable motor cover Capacitor holder Oven lamp access cover complete 2 9B 2 9c 2 9D 2 10 2 1...

Страница 41: ...ransistor DTB143ES Rl RR DZ391PDREO Resistor 390 n 1 2w R2 RR DZ331PDREO Resistor 330 n 1 2wl R4 RR DZ471PDREO Resistor 470 0 i 2w R5 R20 RR DZ153NDREO Resistor 15k n 1 4W R12 RR DZGR2NDREO Resistor 6 2 C 1 4W R40 RR DZ332NDREO Resistor 3 3k 0 1 4W R50 RR DZA069DRE Resistor block R51 RR SZ331RDREU Resistor 330 n 1w R52 RR NZ182NDREO Resistor 1 8k n F 1 4W R53 RR NZ364NDREO Resistor 360k f2 F 1 4W ...

Страница 42: ...Convect on fan NFANMA012WRPO Reflect ton fan LANGQA080WRWO Convection motor mounting plate PFTA A012WRWO Damper NSFTTA031WRMO Damper shaft LANGTA128WRWO Damper angle LANGQA094WRWO Thermal cut out angle PCUSGA137WRPO Damper cushion LANGTA123WRWO Chassis support PCOVPAO83WRFO Sensor cover PPIPFA004WREO Collar FANGKA080WRYO Partition plate PSLDHA026WRWO Thermal protection platecright PSLDHA027WRWO Th...

Страница 43: ...SUW40 10000 Washer convection fan mtg XCTSD40PlOOOO Screw air protection plate exhaust heater duct assjy mtg 7 33 XBPSD30P16KOO Screw damper switch lower latch switch mtg 7 34 XWHUW41 10100 Washer convection fan mtg 7 35 XWHUW50 10120 Washer reflection fan mtg 7 36 XCPSD30P12XOO Screw micro relay mtg SCREWS NUTS WASHERS AND PINS XCTWW40P12000 Screw convection motor mounting plate and thermal prote...

Страница 44: ...ge mtg 7 38 XFPSD30PlOOOO Screw fuse holder mtg 7 39 XFPSD30P15000 Screw cord connector mtg 7 40 XFPSD40PlOKOO Screw earth angle 7 41 XWWSD50 06000 Washer power transformer mtg HOW TO ORDER REPLACEMENT PARTS Q TY CODE 1 AA 1 AA AA AA 1 AA To have your order filled promptly and correctly please furnish the following information 1 MODEL NUMBER 2 REF NO 3 PART NO 4 DESCRIPTION RDP1303U 43 ...

Страница 45: ...EZT226AFl E RC KZA004 DREO VCKYATl EXl 53N RC EZA063DREO RC EZT474AFl H RH DZAOl 1 DREO VHDl 1 ES1 1 RH TZA049DREO VSDTC 114 A 1 I USED PART NO NOTE Common resistors have been omited from this parts list such as 1 4W and 1 2W carbon resistors below is a com patibility list and cross referrence information RR DZ103NDREO VRD STPDFIOBJ DESCRIPTION I 1 4W 1Ok Q small shape carbon film RR DZ102DDREO VR...

Страница 46: ...7 R 8380 1 2 3 4 5 6 CABINET PARTS 2 9 r Y 45 ...

Страница 47: ...R 8380 B C D E F G H c 1 I 2 3 4 5 6 OVEN PARTS i ____ J 1 2 3 4 5 6 46 ...

Страница 48: ...R 8386 1 2 I 3 4 I 5 I 6 CONTROL PANEL PARTS g A DOOR PARTS 1 2 I 3 4 5 I 6 47 ...

Страница 49: ... 2 3 4 5 6 MISCELLANEOUS P 9 6 2 0 6 I PACKING ACCESSORIES h BRO8LINGTAWET BAKlNG RACK TRAYBOLDER zYTiziiKD COOKBOOK I P CKING nnn Kr CPAoaAOS KO DOOR PROTECTlON SHEET 4 Eo wnmaaswnEoi Not Replaceable Items 48 ...

Страница 50: ...R 8380 RDXllOlU SHARP 87 0 SHARP CORP 11 U0 75E Prmted in Australia ...

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