Sharp R-9380 Service Manual Download Page 9 | Manualshive

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Summary of Contents for R-9380

Page 1: ...cified should be used RDlGlOlU TABLE OF CONTENTS Page FOREWORD 1 CAUTION MICROWAVE RADIATION 1 PRODUCT DESCRIPTION 2 OPERATION 4 SERVICING 7 TOUCH CONTROL PANEL ASSEMBLY 15 COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE 22 MICROWAVE MEASUREMENT PROCEDURE 26 PICTORIAL DIAGRAM 27 CONTROL PANEL CIRCUIT 28 PRINTED WIRING BOARD 29 PARTS LIST 30 PACKING AND ACCESSORIES 38 SHARPCORPORATION ...

Page 2: ...1 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 waveguides flanges and gaskets must be secured Never operate the device without a microwave energy absorbing load attached Never look into an open wavegui...

Page 3: ...by converting the microwave energy microwaves and may be used only as recommended in to heat AD41 101 U the cooking instructions Materials with a high I SPECIFICATION F ITEM DESCRIPTION Power Requirements 240 Volts 50 Hertz Power Consumption Power Output Case Dimensions Single phase 3 wire earthed 14oow 700 watts nominal of RF microwave energy 2 liter water load Operating frequency of 2450MHz Widt...

Page 4: ... Access cover for oven lamp replacement Auto TouchTM Control Panel r NUMBER PADS I I 1 11 EASY REHEAT j 3 l Dmner plate _ I 2 lales 2 Chicken l 6pcs 3 CassetolelSouP l 4cups 4 ptZZa Bpcs 5 Eleverage I 4cups 1 7 11n LOd I r INSTANT COOK START I 12 Door hinges EASY REHEAT PAD EASY DEFROST PAD VARIABLE COOKING CONTROL PADS MORE I A I LESS I PADS AUTO START CLOCK PAD _ TIMER HOLD PAD INSTANT COOK STAR...

Page 5: ... time the power transformer 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 monitor switch upper latch switch and lower latch switch are activated with the following results The circuits to the turntable motor the cooling fan mo tor and the high voltage components are deener gized...

Page 6: ...z YI Y Om Fz bS CG pn z Z amoCuJ aaaag OE nga3 kOoaaot o 0 nnvn v t FZ V w ti i I P s 5 ...

Page 7: ...D UPPER LATCH SWITCHES The lower latch switch is mounted in the lower latch hook and the upper latch switch is mounted in the upper latch hook They are activated by the latch heads on the door When the door is opened the switches interrupt the circuit to all components except the oven lamp A cook cycle cannot take place until the door is firmly closed therebv activating both interlock switches MON...

Page 8: ...itor switch Procedure G 88 88 does not appear in display when power cord is first plugged into wall outlet No power at outlet Check home fuse No power from service entrance Check wall outlet Open wire in power cord or wire harness Blown fuse M6 3A Defective temp fuse Replace same or repair wiring Procedure H Procedure F Defective thermal cut out Open wire In power cord wiring harness or wrring bet...

Page 9: ...W MED LOW MED MED HIGH cooking powers Defective control unit Operates properly on HIGH Defective key unit Open or loose wiring between the above components 8 COOKING CONDITION CONT D Open wiring to oven lamp socket Defective relay RY 1 on control unit Turntable motor defective Open or loose wiring between control unit and motor Defective fan motor Open or loose wiring to fan motor Upper and Lower ...

Page 10: ...OOK START Pad ERROR appears POSSIBLE CAUSE TEST PROCEDURE OR CORRECTION Programmed incorrectly EASY DEFROST will only operate on a specific weight Range for each food category See steps for Easy Defrost is Operation Manual Defective control unit Procedure J ...

Page 11: ...x AT I t Our condition for the water load is as follows Water load 2000 ml Heating time I 20 seconds P 70x AT Measuring method 1 Put the water load of two 2 litres on the center of the 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 a...

Page 12: ...est ohm scale of the meter read the resistance across the terminals and observe reverse the leads to the rectifier terminals and observe meter reading If a short is indicated in both directions or if an infinite resistance is read in both di rections the rectifier is probably defective and should be replaced RD62501 U D HIGH VOLTAGE CAPACITOR TEST DISCHARGE THE HIGH VOLTAGE CAPACITOR BEFORE TOUCHI...

Page 13: ...his condition the plunger of the monitor switch is pushed in the meter should indicate an open circuit If improper operation is indicated the switch may be defective After testing the monitor switch re connect the wire lead to the upper latch switch NO termi nal POWER TRANSFORMER OHMMETER MONITOR SWITCH H BLOWN OVEN FUSE If the oven fuse in the upper latch switch monitor switch circuit is blown wh...

Page 14: ...er pad two figures or more are displayed c When touching the pads sometimes a pad produces no signal 2 Control Unit The following symptoms indicate a defective 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 di...

Page 15: ... applied to POWER terminal Check supply voltage and oven main unit of CPU connector CN A 2 The rated voltage is applied to primary side of power Power transformer or secondary circuit defective transformer Check and repair 3 Only pattern at a is broken Insert jumper wire 31 and solder 4 Pattern at a and b are broken Insert the coil RCILF2003YAZZ between c and d NOTE At the time of these repairs ma...

Page 16: ...2v LSI ICI ACL circuit VREF 6 15V LSI ICI VP 26 5V Fluorescent display tube Grid and anode voltage VF 15 2V F rrent of fluorescent display VF VF to VF voltage AC 3 5V Synchronizing Signal Circuit The power source synchronizing signal is available in order to compose a basic standard time in the clock circuit It accompanies a very small error because it works 4 ACL Circuit A circuit to generate a s...

Page 17: ... CL1 1 I O IN Internal clock oscillation frequencv input settina The internal clock frequency is set by inserting the ceramic filter oscillation circuit with respect to CL2 terminal RD93EA2U PIN NO 1 7 1 SIGNAL j CL2 Internal clock oscillation frequencv control output Output to control oscillation input of CL1 I I O 1 OUT RD93EAl U PIN NO 1 8 Segment data siqnal Signal similar to P30 SIGNAL P40 I ...

Page 18: ...to PlO P13 terminal while one of D 3 line keys on key matrix is touched RD93BAl U PIN NO 1 22 1 SIGNAL 1 P71 I I O OUT Kev strobe signal Signal applied to touch key section A pulse signal is input to PIO PI3 terminal while one of D 4 line keys on key matrix is touched RD93BAl Ub PIN NO 23 1 SIGNAL P72 I I O OUT Kev strobe siQnal Signal applied to touch key section A pulse signal is input to PIO P1...

Page 19: ... Connected to GND RD93KAl U PIN No i 33 __ sl L p82 Terminal not used Connected to GND I l O OUT RD93KA5U PIN NO I 34 SIGNAL i P83 __ Terminal not used Connected to GND I l O 1 OUT RD93KA5U PIN NO 135 38 SIGNAL j P90 P93 Terminal not used Connected to GND I I O 1 OUT RD93KA5U PIN NO 1 SIGNAL 1 PO0 j 39 Terminal not used Connected to GND I I O IN RD93KAW NNO i_ lSIGNAL I po1 I O 1 IN Terminal to ch...

Page 20: ..._ Siqnal cominq from touch kev When either one of D 8 line keys on key matrix is touched a corresponding signal will be input into PI 3 RD93CAZU PIN NO 47 Connected to GN D SIGNAL j AGND l O IN _ i _ I RD93KAl U PIN NO 48 53 Diqit selection siqnal 1 SIGNAL PA9 PA4 I L l O I OUT Refer to the touch control panel circuit about the relation between signals and digits Normally one pulse is output in ev...

Page 21: ... maintained at 6 15V RD93GA4U PIN NO 58 1 SIGNAL j PA1 I I O 1 IN Sinnal svnchronized with commercial source frequencv 50Hz This is the basic timing for time processing of LSI RD93FEl U PIN NO 1 59 1 SIGNAL j PA0 I I O IN Input signal which communicates the door ooen close information to LSI Door closed H level signal Door opened L level signal RD937Al U PIN NO 60 63 1 SIGNAL i P20 P23 I I O OUT S...

Page 22: ...on 30W To prevent leaking cur rent it is recommended to use a soldering iron with a grounding terminal 2 Oscilloscope Single beam frequency range DC IOMHz type or more ad vanced model 3 Others Hand tools 5 Other Precautions For those models therefore check and repalr all the controls with the sensor related ones included of the touch control panel while keeping it in contact with the oven proper 6...

Page 23: ...4 5 6 Disconnect oven from power supply and remove the outer case Discharge high voltage capacitor Remove one 1 screw holding capacitor holder to oven unit Remove one 1 screw holding earth side terminal of rectifier ass y and remove capacitor holder Disconnect wire leads and terminal of rectifier and short protector ass y from high voltage capacitor a I l ow rectmer assy IS Tree CAUTION WHEN REPLA...

Page 24: ...screws holding the control unit to the panel frame Panel frame and control unit are now free separate them 4 Remove one 1 screw holding the control panel frame to the oven cavity front flange 5 Lift up the control panel frame to free the panel hooks from the bottom opening of back plate 6 Pull the control panel forward 4 Replacement of individual component is as follows UPPER LATCH SWITCH AND MONI...

Page 25: ...tical adjustment of the lower latch hook is not possible Secure the screws with washers firmly Make sure of the upper latch switch operation If the upper latch switch has not activated with the door closed loose one 1 screw holding upper latch hook to oven cavity front flange and adjust upper latch hook position After adjustment make sure of the following 1 In and out play of door remains less tha...

Page 26: ...tment make sure of the following 1 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 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 install outer case and check for microwave...

Page 27: ...formance standard for microwave ovens must be used for testing 2 3 4 5 6 Recommended instruments are NARDA 8100 NARDA 8200 HOLADAY HI 1500 SIMPSON 380M Place the oven tray into the oven cavity Place the load of 275 15ml 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 electrica...

Page 28: ...r 1 1 2 1 3 4 5 L t 220 o w 6 E iI k n it I 0 z ii F ci 2 s ii R 9380 IA I I L C 0 k E IF I IG I I IH I I 2 I _ _ 1 3 4 5 6 I I 27 ...

Page 29: ...R 9380 TW 3 N p g i i I cyliK 3 f e m till90 Iii L4F p F 8 o i l 080 Wb 1 t 1 2 __ 1 2 3 4 5 6 28 ...

Page 30: ...R 9380 1 2 3 I 4 5 6 6 1 k a se L li y A _ p i i I iIIII I mm P I Kg c B n i e L 11 I P Ry2 R T y I I v T I 1311 2 q f m A RSI 1 2 I 3 Figure S 3 Printed Wiring Board 29 ...

Page 31: ...wer 8 AA LANGQ0382WRMO Earth angle 1 AA 3 1 3 1A 3 1B 3 IC 3 1D Cl c2 c3 c5 c4 c5o c92 c20 c21 c93 c94 c90 c91 CF90 Dl D2 D50 D80 D81 D82 Fl ICI IC2 lC3 a20 Q30 Q80 Rl R2 R3 R83 R4 R20 R21 R72 R77 R30 R50 R41 R42 R70 CPWBFAO98WRKC QCNCMA078DREC QPLGJ2255DREC QCNCWA030DREC RV KXAOOSDREC RC KZAO32DREC RC EZA071 DREO RC EZ476QDREO RC KZI 03SDREO RC EZ225SDREO RC KZA004DREO RC CZ221 SDREO RCRS A007DRE...

Page 32: ...O l of serial No Oven cavity After 71 I of serial No Turntable support ass y Turntable roller Turntable tray Waveguide cover Clip Turntable coupling O Ring Upper oven hinge Upper latch hook Lower latch hook Door open lever Button spring Steam duct ass y Fan duct Magnetron duct Fan brade ass y Fan retainer Turntable motor cover Base cabinet left attached with foot Till 71 O of serial No Base cabine...

Page 33: ...der monitor resistor 3 AA oven lamp access cover mtg XFPSD40Pl OK00 Screw turntable motor cover mtg 2 XFPSD40Pl 0000 Screw turntable motor mtg 2 2 XFPSD40P08KOO Screw earth angle stop switch harness grounding wire mtg 3 AA silicon rectifier ass y mtg XOPSD50P12KSO Screw upper oven hinge mtg 2 AA LX BZAO36WREO Screw outer case cabinet mtg 8 AA X DT S D4 0 P 1 2 RV 0 Screw control unit base cabinet ...

Page 34: ...EXI 53N RDQllOlU REF NO LISTED PART No 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 PART CODE LISTED PART CODE COMPATIBLE i DESCRIPTION A RR DZlOBNDREO VRD STZDFlOSJ 1 4W 1Ok 0 small shape carbon film B RR DZlOZDDREO VRD STZEFIOZJ iiKiiiZGbanf RR DZlOl PDREO __ _ j C...

Page 35: ...1 _ 2 3 4 I 5 6 _ _ ___ i I i OVEN PARTS L 4 4 5 b 34 ...

Page 36: ...i A B C D E F G H 1 1 2 3 1 4 1 i 6 CABINET PARTS 1 2 3 I 4 5 I 6 35 ...

Page 37: ...1 2 I 3 4 I 5 6 CONTROL PANEL PARTS 4 B g a B A D E F G H 1 2 I 3 4 I 5 6 36 ...

Page 38: ...R 9380 A B C D E F G H 1 2 3 4 5 6 1 DOOR ASSEMBLY A B c D MISCELLANEOUS ICAP CAP TRANS E MAG F G IH 1 2 3 4 5 6 37 ...

Page 39: ...R 9380 PACKING AND ACCESSORIES INSTRUCTION BOOK DoOR PROTECT ON SHEET SPADP0338WREO PACKING ADD KIT lCPADEAO55WRKOj 3 4 I 5 6 87 0 SHARP CORP 1 ON0 75E Printed in Australia 38 ...

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