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R230KW

5 – 2

2. TOUCH CONTROL PANEL

NOTE: Some one-touch cooking features such as "MINUTE PLUS" are disabled after three minutes when the oven is not in use. These features are

automatically enabled when the door is opened and closed or the STOP/ CLEAR pad is pressed.

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Содержание R-230KK

Страница 1: ... CIRCUIT DIAGRAMS Parts Guide No S2501R230KPKW MICROEAVE OVEN R 230KK R 230KW SERVICE MANUAL R 230KK R 230KW MODELS CONTENTS SHARP CORPORATION This document has been published to be used for after sales service only The contents are subject to change without notice In the interest of user safety the oven should be restored to its original condition and only parts identical to those specified shoul...

Страница 2: ...I NOISE FILTER TEST 8 4 12 J TOUCH CONTROL PANEL ASSEM BLY TEST 8 4 13 K KEY UNIT TEST 8 5 14 L RELAY TEST 8 6 15 M DEFROST TEST 8 6 16 N FOIL PATTERN ON THE PRINTED WIRING BOARD TEST 8 6 CHAPTER 9 TOUCH CONTROL PANEL ASSEM BLY 1 OUTLINE OF TOUCH CONTROL PAN EL 9 1 2 DESCRIPTION OF LSI 9 1 3 SERVICING FOR TOUCH CONTROL PANEL 9 3 CHAPTER 10 PRECAUTIONS FOR USING LEAD FREE SOLDER 1 Employing lead fr...

Страница 3: ...nents in the interlock monitor door seal and microwave generation and transmission systems shall be repaired replaced or adjusted by procedures described in this manual before the oven is released to the owner e A microwave leakage check to verify compliance with the Federal Performance Standard should be performed on each oven prior to release to the owner BEFORE SERVICING Before servicing an ope...

Страница 4: ...h voltage capacitor 4 4 Disconnect the leads to the primary of the power transformer 5 Ensure that the leads remain isolated from other components and oven chassis by using insulation tape 6 After that procedure reconnect the power supply cord 2 When the testing is completed 1 Disconnect the power supply cord and then remove outer case 2 Open the door and block it open 3 Discharge high voltage cap...

Страница 5: ...he oven cavity The water container shall be a low form of 600 ml 20 oz beaker with an inside diameter of approx 8 5 cm 3 1 2 in and made of an electrically nonconductive material such as glass or plastic The placing of this standard load in the oven is important not only to protect the oven but also to insure that any leakage is measured accurately 4 Set the cooking control on Full Power Cooking M...

Страница 6: ...rackets 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 personnel 3 DANGER Certain initial parts are intentionally not grounded and present a risk of electrical shock only during servicing Service personnel Do not contact th...

Страница 7: ...or holding food is less Control Complement Touch Control System Clock 1 00 12 59 Timer 0 99 minutes 99 seconds Microwave Power for Variable Cooking Repetition Rate P HI Full power throughout the cooking time P 90 approx 90 of FULL Power P 80 approx 80 of FULL Power P 70 approx 70 of FULL Power P 60 approx 60 of FULL Power P 50 approx 50 of FULL Power P 40 approx 30 of FULL Power P 30 approx 40 of ...

Страница 8: ...ontact a qualified electrician and have it replaced with a properly grounded three pronged wall receptacle or have a grounding adapter properly grounded and polarized If the extension cord must be used it should be a 3 wire 15 amp or higher rated cord Do not drape over a countertop or table where it can be pulled on by children or tripped over accidentally CAUTION DO NOT UNDER ANY CIRCUMSTANCES CU...

Страница 9: ...NEL NOTE Some one touch cooking features such as MINUTE PLUS are disabled after three minutes when the oven is not in use These features are automatically enabled when the door is opened and closed or the STOP CLEAR pad is pressed ...

Страница 10: ... read out dis plays the time still remaining in the cook cycle when the door was opened 7 The monitor switch is electrically monitoring the operation of the secondary interlock switch and primary interlock relay RY2 and is mechanically associated with the door so that it will function in the following sequence a When the door opens from the closed position the secondary interlock switch door sensi...

Страница 11: ...RATURE FUSE OVEN THERMAL CUT OUT OVEN 120V AC 60 Hz GRN FUSE 15A NOISE SUPPRESSION COIL LINE CROSS CAPACITOR 0 22µF AC 250V LINE BYPASS CAPACITOR 0 0033µF AC 250V LINE BYPASS CAPACITOR 0 0033µF AC 250V L N NOISE FILTER or NOTE indicates components with potentials above 250V POWER TRANSFORMER RECTIFIER MAGNETRON CAPACITOR 0 82µF AC2100V or AC1900V OVEN LAMP TURN TABLE MOTOR FAN MOTOR MONITOR SWITCH...

Страница 12: ...SENSING SWITCH PRIMARY INTERLOCK RELAY RY2 SECONDARY INTERLOCK SWITCH AND MONITOR SWITCH FOR PROPER OPERATION REFER TO CHAPTER TEST PROCEDURE NOTE MONITOR FUSE AND MONITOR SWITCH ARE REPLACED AS AN ASSEMBLY 4 TURNTABLE MOTOR The turntable motor rotates the turntable located on the bottom of the oven cavity so that the food on the turntable is cooked evenly The turntable may turn in either directio...

Страница 13: ...nnect the power supply cord after the outer case is installed 7 Run the oven and check all functions 1 TROUBLESHOOTING CHART RE CK A B C D E F F G H RE RE CK J L CK CK CK K N M I POSSIBLE CASE AND DEFECTIVE PARTS SHORT IN POWER CORD SHORT OR OPENED WIRING MAGNETRON POWER TRANSFORMER H V RECTIFIER ASSEMBLY HIGH VOLTAGE CAPACITOR TEMPERATURE FUSE OVEN or THERMAL CUT OUT OVEN PRIMARY INTERLOCK SYSTEM...

Страница 14: ...re to stir the thermometer or thermocouple through the water until the maximum temperature is recorded 4 Subtract the cold water temperature from the hot water temperature The normal result should be 20 to 38 F 11 1 to 21 1 C rise in temperature If the water temperatures are accurately measured and tested for the required time period the test results will indicate if the magnetron tube has low pow...

Страница 15: ...cooking time or operation of control unit Check for restricted air flow through the vent holes of the oven cavity especially the cooling fan and air guide 5 Reconnect all leads removed from components during testing 6 Reinstall the outer case cabinet 7 Reconnect the power supply cord after the outer case is installed 8 Run the oven and check all functions CAUTION IF THE THERMAL CUT OUT INDICATES A...

Страница 16: ...ard entirely or the relay itself 5 Reconnect all leads removed from components during testing 6 Reinstall the outer case cabinet 7 Reconnect the power supply cord after the outer case is installed 8 Run the oven and check all functions 9 Procedure G MONITOR SWITCH TEST 1 Disconnect the power supply cord and then remove outer case 2 Open the door and block it open 3 Discharge high voltage capacitor...

Страница 17: ...ts during testing 6 Reinstall the outer case cabinet 7 Reconnect the power supply cord after the outer case is installed 8 Run the oven and check all functions 12 Procedure J TOUCH CONTROL PANEL ASSEMBLY TEST The touch control panel consists of circuits including semiconductors such as LSI ICs etc Therefore unlike conventional microwave ovens proper maintenance cannot be performed with only a volt...

Страница 18: ...licker 3 Other possible problems 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 When testing is completed 1 Disconnect the power supply cord and then remove outer case 2 Open the door and block it open 3 Discharge high voltage capacitor 4 Reconnect all leads removed from components during testing 5 Re insta...

Страница 19: ...g testing 13 Re install the outer case cabinet 14 Reconnect the power supply cord after the outer case is installed 15 Run the oven and check all functions 15 Procedure M DEFROST TEST 1 Place one cup of water in the center of the turntable tray in the oven cavity 2 Close the door touch the DEFROST pad once 3 The oven is in Defrost cooking condition 4 The oven will operate as follows 5 If improper ...

Страница 20: ...s remain isolated from other components and oven chassis by using insulation tape 6 After that procedure re connect the power supply cord 7 Follow the troubleshooting guide given below for repair 8 Disconnect the power supply cord and then remove outer case 9 Open the door and block it open 10 Discharge high voltage capacitor 11 Reconnect all leads removed from components during testing 12 Re inst...

Страница 21: ...error because it works on commercial frequency 7 Door Sensing Switch A switch to tell the LSI if the door is open or closed 2 DESCRIPTION OF LSI The I O signal of the LSI are detailed in the following table Symbol Voltage Application VSS 5V LSI IC1 Pin No Signal I O Description 1 P50 IN Signal coming from touch key When either G7 line on key matrix is touched a corresponding signal out of P24 P26 ...

Страница 22: ...oming from the touch key 51 AVSS IN A D converter power source voltage The power source voltage to drive the A D converter in the LSI 52 P11 IN To input signal which communicates the door open close information to LSI Door close H level signal 0V Door open L level signal 5V 53 P10 OUT Terminal not used 54 P33 OUT Key strobe signal Signal applied to touch key section A pulse signal is input to P50 ...

Страница 23: ...ed ones included of the touch control panel while keeping it connected to the oven b On some models the power supply cord between the touch control panel and the oven proper is so long enough that they may be separated 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 mu...

Страница 24: ...s adjusted accordingly 3 Soldering As the melting point of lead free solder Sn Ag Cu is higher and has poorer wettability flow to prevent damage to the land of the PWB extreme care should be taken not to leave the bit in contact with the PWB for an extended period of time Remove the bit as soon as a good flow is achieved The high content of tin in lead free solder will cause premature corrosion of...

Страница 25: ...t close firmly 2 Door hinge support or latch hook is damaged 3 The door gasket or seal is damaged 4 The door is bent or warped 5 There are defective parts in the door interlock system 6 There are defective parts in the microwave generating and transmission assembly 7 There is visible damage to the oven Do not operate the oven 1 Without the RF gasket Magnetron 2 If the wave guide or oven cavity are...

Страница 26: ...of the power transformer from high voltage capacitor 5 Disconnect the H V wire of the H V rectifier assembly from the magnetron 6 Disconnect the filament lead red of the power transformer from the H V capacitor 7 Remove one 1 screw holding capacitor holder to bottom plate 8 Remove one 1 screw holding ground side terminal of high voltage rectifier assembly and remove capacitor holder 9 Disconnect t...

Страница 27: ...t the upper edge and right edge of the membrane switch to the small depression on the surface of the control panel frame 5 Attach the membrane switch to the control panel frame by rubbing with a soft cloth not to scratch 6 Tear the backing paper from the new graphic sheet 7 Adjust the upper edge and left edge of the graphic sheet to the large depression on the surface of the control panel frame 8 ...

Страница 28: ...turntable motor See Positive lock connector removal 6 Remove one 1 screw holding turntable motor to oven cavity 7 Remove the TTM packing from the turntable motor 8 Now the turntable motor is free 2 REINSTALL 1 Re install the TTM packing 2 Re install the turntable motor with the TTM packing with the single 1 screw to the oven cavity bottom plate 3 Re connect the wire leads to the turntable motor 4 ...

Страница 29: ... The secondary interlock monitor switches are in the lower position and the door sensing switch is in the upper position 2 Secure latch hook with two 2 mounting screws to oven flange 3 Re connect wire leads to each switch Refer to pictorial diagram 4 Install the switch lever to the oven cavity 5 Reinstall the control panel assembly to the oven cavity 6 Reconnect wire leads to the control unity ref...

Страница 30: ...tch head 14 Now latch head and latch spring are free 15 Remove door screen from door frame 16 Now door screen is free 2 REINSTALL 1 Re install door screen to door frame 2 Re install latch spring to the head Re install latch spring to the door frame Re install latch head to the door frame 3 Re install door panel to door frame by fitting ten 10 tabs of door frame to ten 10 holes of door panel 4 Put ...

Страница 31: ... film as shown in Fig C 8 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 8 Sealer film Upper Oven Hinge Lower Oven Hinge Pin Upper Oven Hinge Slit choke of door panel Choke Cover Pin Lower Oven Hinge Sealer film Backing film Adhesive tape ...

Страница 32: ...WHT R Y1 P R IMAR Y INT E R LOC K R E LAY C N B 2 1 C N A N O C OM T 1 3 1 R Y 2 OR G R E D B LK R E D C N A 2 G R Y 1 3 C N B 2 1 G R N G R Y C OM N O G R Y G R Y HIGH VOLTAGE CAPACITOR H V RECTIFIER RED WHT RED HIGH VOLTAGE COMPONENTS MAGNETRON TURNTABLE MOTOR POWER TRANSFORMER RED RED GRY GRY RED WHT WHT ORG FUSE FAN MOTOR BLU GRY RED OVEN LAMP RED GRY GRY L N WHT RED Power Supply Cord Oven Cav...

Страница 33: ...D2 D3 D4 D1 D4 1N4002L X 4 NOTE SEG1 SEG3 SEG2 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 COM2 COM1 COM0 B1 DOOR 5V INT BZ COM M C40 GND R4 910 1 2W CN B AC AC AC120V 60HZ G4 G5 G6 G1 LSI UNIT J1 DTA123JS G8 G9 G10 G2 G3 G7 VR R30 3 3K 0 01uF 50V KEY UNIT PA142DR COM1 COM2 COM3 SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 P71 P72 AVDD P01 P00 RESET X2 X1 VSS VDD XT2 XT1 IC P53 P52 P51 P50 P02 17 R50 R51 R7 ...

Страница 34: ...R230KW 12 3 3 Printed Wiring Board Figure S 3 Figure S 3 Printed Wiring Board ...

Страница 35: ... may cause undue microwave exposure Parts marked are used in voltage more than 250V FPAK A531WRKZ R 230KK FPAK A530WRKZ R 230KW 6 1 TURNTABLE TRAY 6 5 INSTRUCTION BOOK 6 2 TURNRTABLE SUPPORT INTO THE OVEN CAVITY Not replaceable items TRAY PAD ASSY CPADBA287WRKZ PACKING CASE MICROWAVE OVEN TOP PAD ASSEMBLY FPADBA585WRKZ POLYETHYLENG BAG SSAKHA014WRE0 PLASTIC SHEET for R 230KK SPADPA615WREZ FOAM SHE...

Страница 36: ...8 7 8 7 3 7 3 1 8 6 4 7 2 1 6 1 3 7 1 2 2 4 1 4 10 4 2 7 8 7 8 7 2 4 3 6 1 6 2 7 6 7 6 7 9 4 9 1 7 7 1 4 5 4 11 4 8 7 9 1 2 7 7 7 6 4 4 4 14 4 12 7 2 6 3 7 1 1 5 1 1 1 2 7 7 4 13 7 4 7 6 7 8 1 1 1 9 1 4 4 7 2 3 2 3 1 11 7 1 1 10 1 12 7 5 7 8 ...

Страница 37: ...E0 AG Temperature fuse 150C Oven 1 10 RTHM A075WRE0 AN Thermal cut out 145C Oven Interchangeable 1 10 RTHM A119WRE0 AK Thermal cut out 145C Oven Interchangeable 1 11 RTRN A727WRZZ BF Power trnasformer 1 11 RTRN A728WRZZ BF Power transformer Interchangeable 1 12 FPWBFA385WRKZ AV Noise filter CABINET PARTS 2 1 GCABUA958WRPZ BE Outer case cabinet R 230KW 2 1 GCABUA960WRPZ BE Outer case cabinet R 230K...

Страница 38: ...R230KW 4 2 DOOR AND CONTROL PANEL PARTS 5 2 6 6 5 5 5 4 5 3 5 6 5 7 5 1 6 5 3 2 3 1 1 3 1 3 6 3 5 3 4 3 8 3 7 3 3 3 1 2 ...

Страница 39: ...A050WRE0 AB Open button spring 3 4 DPWBFC479WRUZ BH Control unit 3 5 QCNC A014WRZZ AE Rubber connector 3 6 RLCDSA105DRZZ AQ Liquid crystal display 3 7 XEPSD30P08XS0 AA Screw 3mm x 8mm 3 8 PCUSUA633WREZ AE Cushion DOOR PARTS 5 1 FDORFA397WRTZ BB Door panel assembly 5 2 GWAKPA978WRRZ AW Door frame R 230KW 5 2 GWAKPA980WRRZ AW Door frame R 230KK 5 3 HPNL A833WRRZ AS Door screen R 230KW 5 3 HPNL A835W...

Страница 40: ... 4 10 AC PSHEPA782WREZ 2 5 6 AG PSHEPB087WREZ 2 3 1 1 AT PSHEPB089WREZ 2 3 1 1 AT Q QCNC A014WRZZ 2 3 5 AE QFS TA014WRE0 1 1 10 AG QSW KA053DRZZ 2 3 1 2 AQ QSW MA085WRE0 1 1 1 AF QSW MA137WRE0 1 1 1 AH QSW MA147WRZZ 1 1 1 AG R RC PZA041WRE0 1 1 5 AS RC QZA307WRZZ 1 1 5 AX RC QZA327WRZZ 1 1 5 AT RC QZA328WRZZ 1 1 5 AS RLCDSA105DRZZ 2 3 6 AQ RLMPTA082WRZZ 1 1 8 AL RLMPTA085WRZZ 1 1 8 AL RLMPTA087WRZ...

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