Sharp R-310HK Скачать руководство пользователя страница 32 | Manualshive

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R - 310HK
R-310HW

Figure S-3. Printed Wiring Board of Power Unit

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Содержание R-310HK

Страница 1: ...OBSERVED BEFORE AND DURING SERVICING TO AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY INSIDE FRONT COVER BEFORE SERVICING INSIDE FRONT COVER WARNING TO SERVICE PERSONNEL 1 MICROWAVE MEASUREMENT PROCEDURE 2 FOREWORD AND WARNING 3 PRODUCT SPECIFICATIONS 4 GENERAL INFORMATION 4 OPERATION 6 TROUBLESHOOTING GUIDE 9 TEST PROCEDURE 10 TOUCH CONTROL PANEL 17 COMPONENT REPLACEMENT AND ADJUSTMENT PR...

Страница 2: ... 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 operative unit perform a microwave emission check as per the Microwa...

Страница 3: ...capacitor 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 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 capacitor 4 Recon...

Страница 4: ...ty 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 Mode 5 Close ...

Страница 5: ... is not damaged D The door is not deformed or warped E There is no other visible damage with the oven Servicing and repair work must be carried out only by trained service personnel DANGER Certain initial parts are intentionally not grounded and present a risk of electrical shock only during servicing Service personnel Do not contact the following parts while the appliance is energized High Voltag...

Страница 6: ...TOP CLEAR pad START MINUTE PLUS pad Oven Cavity Light Yes Safety Standard UL Listed FCC Authorized DHHS Rules CFR Title 21 Chapter 1 Subchapter J SPECIFICATION GENERAL INFORMATION GROUNDING INSTRUCTIONS This oven is equipped with a three prong grounding plug It must be plugged into a wall receptacle that is properly installed and grounded in accordance with the National Electrical Code and local c...

Страница 7: ... and sealing surfaces 6 Turntable motor shaft 7 Removable turntable support Carefully place the turntable support in the center of the oven floor 8 Removable turntable Place the turntable on the turntable support securely The turntable will rotate clockwise or counterclockwise Only remove for cleaning 9 Ventilation openings Rear 10 Oven light It will light when oven is operating door is open 11 Wa...

Страница 8: ... The circuits to the turntable motor the cooling fan motor and the high voltage components are de energized the oven lamp remains on and the digital read out displays the time still remaining in the cook cycle when the door was opened 7 The monitor switch electrically monitors the operation of the secondary interlock switch and primary interlock relay and is mechanically associated with the door s...

Страница 9: ... LAMP RELAY TURN TABLE MOTOR FAN MOTOR POWER TRANSFORMER MONITOR SWITCH RECTIFIER MAGNETRON SECONDARY INTERLOCK SWITCH TTM OL FM C T FUSE TEMPERATURE FUSE 150 C OVEN N O N O COM COM DOOR SENSING SWITCH RY1 RY2 CONTROL UNIT PRIMARY INTERLOCK RELAY GRN B2 CAPACITOR 1µF AC 2300V B1 120V AC 60 Hz OVEN LAMP OVEN LAMP RELAY TURN TABLE MOTOR FAN MOTOR POWER TRANSFORMER MONITOR SWITCH RECTIFIER MAGNETRON ...

Страница 10: ...FORE REPLACING A BLOWN C T FUSE TEST THE DOOR SENSING SWITCH PRI MARY INTERLOCK RELAY RY2 SECOND ARY INTERLOCK SWITCH AND MONITOR SWITCH FOR PROPER OPERATION RE FER TO CHAPTER TEST PROCEDURE NOTE C T FUSE AND MONITOR SWITCH ARE REPLACED AS AN ASSEMBLY 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 evenl...

Страница 11: ... an assembly IMPORTANT Whenever troubleshooting is performed with the power supply cord disconnected It may in some cases be necessary to connect the power supply cord after the outer case has been removed in this event 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 Disconnect the leads to the primary of the powe...

Страница 12: ...EFROST CENTER but food is not defrosted well OFF CONDITION PROBLEM CONDITION SHORT IN POWER CORD SHORT OR OPENED WIRING MAGNETRON POWER TRANSFORMER H V RECTIFIER ASSEMBLY HIGH VOLTAGE CAPACITOR TEMPERATURE FUSE OVEN PRIMARY INTERLOCK SYSTEM SECONDARY INTERLOCK SWITCH MONITOR SWITCH C T FUSE OVEN LAMP COOLING FAN MOTOR TURNTABLE MOTOR TOUCH CONTROL PANEL WRONG OPERATION LOW VOLTAGE DIRTY OVEN CAVIT...

Страница 13: ...s the following procedure must be followed carefully 1 Fill the measuring cup with 16 oz 453cc of tap water and measure the temperature of the water with a thermometer or thermocouple temperature tester Stir the thermometer or thermocouple through the water until the temperature stabilizes Record the temperature of the water 2 Place the cup of water in the oven Operate oven at POWER P HI HIGH sele...

Страница 14: ...y 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 defective and should be replaced 5 Reconnect all leads removed from components during testing 6 Reinstall the outer case cabinet 7 Reconnect the power sup...

Страница 15: ...e power supply cord and then remove outer case 2 Open the door and block it open 3 Discharge high voltage capacitor 4 Disconnect two 2 wire leads from the male tab terminals of the Primary Interlock Relay Check the state of the relay contacts using a ohmmeter The relay contacts should be open If the relay contacts are closed replace the circuit board entirely or the relay itself 5 Reconnect all le...

Страница 16: ...functions The following symptoms indicate a defective key unit a When touching the pads a certain pad produces no signal at all b When touching a number 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 2 1 In connection with pads a When touching the pads a certain group of pads ...

Страница 17: ...d and then remove outer case 2 Open the door and block it open 3 Discharge high voltage capacitor 4 Disconnect the leads to the primary of the power transformer 5 Ensure that these leads remain isolated from other components and oven chassis by using insulation tape 6 After that procedure re connect the power supply cord 7 Remove the outer case and check voltage between the normal open terminal of...

Страница 18: ...it open 3 Discharge high voltage capacitor 4 Follow the troubleshooting guide given below for repair STEPS OCCURRENCE CAUSE OR CORRECTION 1 Only pattern at a is broken Insert jumper wire J1 and solder 2 Pattern at a and b are broken Insert the coil RCILF2003YAZZ between c and d 5 Make a visual inspection of the varistor Check for burned damage and examine the transformer with a tester for the pres...

Страница 19: ...n a key pad is touched a signal is completed through the key unit and passed back to the LSI through P50 P51 P52 and P53 to perform the function that was requested Control Unit Control unit consists of LSI reset circuit indicator circuit power source circuit relay circuit buzzer circuit synchro nizing signal circuit and back light circuit 1 Reset Circuit This circuit generates a signal which reset...

Страница 20: ...requency input setting The internal clock frequency is set by inserting the resistor capacitor oscillation circuit with respect to X2 terminal 11 X2 OUT Internal clock oscillation frequency control output Output to control oscillation input of X1 12 RESET IN Auto clear terminal Signal is input to reset the LSI to the initial state when power is applied 13 15 P00 P02 OUT Terminal not used 16 P03 OU...

Страница 21: ...to P50 P51 P52 and P53 terminal while one of G1 line keys on key matrix is touched 55 P32 OUT Key strobe signal Signal applied to touch key section A pulse signal is input to P50 P51 P52 and P53 terminal while one of G2 line keys on key matrix is touched 56 P31 OUT Key strobe signal Signal applied to touch key section A pulse signal is input to P50 P51 P52 and P53 terminal while one of G3 line key...

Страница 22: ... possible to check the sensor related controls of the touch control panel by using the dummy resistor s 3 Servicing Tools Tools required to service the touch control panel assembly 1 Soldering iron 30W It is recommended to use a soldering iron with a grounding terminal 2 Oscilloscope Single beam frequency range DC 10MHz type or more advanced model 3 Others Hand tools 4 Other Precautions 1 Before t...

Страница 23: ...ed and that the iron temperature is 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...

Страница 24: ...rise it is then possible to hear a click as the door switches operate 3 Visually check the door and cavity face plate for damage dents cracks signs of arcing etc Carry out any remedial work that is necessary before operating the oven Do not operate the oven if any of the following conditions exist 1 Door does not close firmly 2 Door hinge support or latch hook is damaged 3 The door gasket or seal ...

Страница 25: ...he magnetron 6 Disconnect the filament lead short one of the power transformer from the high voltage capacitor 7 Remove the one 1 screw holding capacitor holder to bottom plate 8 Remove one 1 screw holding high voltage rectifier assembly to capacitor holder 9 Disconnect rectifier terminal from capacitor High voltage rectifier assembly is now free 10 Remove capacitor holder Capacitor is now free CA...

Страница 26: ...ntrol unit assembly to the control panel frame 7 Release the ontrol unit assembly from the six 6 tabs of the control panel frame 8 Now the ontrol unit assembly is free Installation 1 Remove remaining adhesive on the control panel frame surfaces with a soft cloth soaked in alcohol 2 Make sure that the LED sheet and liquid crystal display are installed in position 3 Reinstall the control unit assemb...

Страница 27: ...AN MOTOR REMOVAL CAUTION Do not reuse the removed fan blade because the hole for shaft may be larger than normal 10 Now the fan motor is free INSTALLATION 1 Install the fan blade to the fan motor shaft according to the following procedure 2 Hold the center of the bracket which supports the shaft of the fan motor on the flat table 3 Apply the screw lock tight into the hole for shaft of the fan blad...

Страница 28: ...tches If each switch has not activated with the door closed loosen screw and adjust the latch hook position After adjustment check the following 1 In and out play of door remains less than 0 5mm when in the latched position First check upper position of latch DOOR SENSING SWITCH SECONDARY INTERLOCK SWITCH AND MONITOR SWITCH ADJUSTMENT REMOVAL 1 Disconnect the power supply cord 2 Open the door slig...

Страница 29: ...othly catch latch hook through latch holes and that latch head goes through center of latch hole 2 Deviation of door alignment from horizontal line of cavity face plate is to be less than 1 0mm 3 Door is positioned with its face pressed toward cavity face plate 4 Check for microwave leakage around door with an approved microwave survey meter Refer to Microwave Measurement Procedure Note The door o...

Страница 30: ...E The neutral WHT wire must be connected to the terminal with N mark on the power supply cord GRY W H T WHT GRY RED GRY GRY R E D P N K B L K R E D GRN GRY GRY GRN BLK GRY WHT GRY RED RED BLK PNK GRY C T FUSE FAN MOTOR TEMPERATURE FUSE OVEN BLK WHT 2 1 WHT WHT WHT WHT RED RY1 PRIMARY INTERLOCK RELAY CN B CN B T1 1 2 N O COM RY2 N O COM CONTROL UNIT H N NOTE The grounding conductor of the power sup...

Страница 31: ...OM3 COM2 COM1 B1 DOOR RST 5V INT BZ COM M C40 GND R1 560 1 2W CN B AC H AC N AC120V 60HZ G6 G7 G8 G3 J1 DTA123JS G10 G11 G12 G4 G5 G9 VR 0 1uF 50V C12 R30 3 3K 0 01uF 25V COM1 COM2 COM3 SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 P71 P72 AVDD P01 P00 RE SET X2 X1 VSS VDD XT2 XT1 IC P53 P52 P51 P50 P02 BL 17 G2 G1 SEG13 SEG14 R60 R61 R7 R8 R9 C3 R62 R63 0 1uF 25V 4 7K 4 7K 4 7K COM R60 R63 270K x4 POWER UNIT R80...

Страница 32: ...30 R 310HK R 310HW Figure S 3 Printed Wiring Board of Power Unit 6 4 5 1 2 3 6 4 5 1 2 3 A B C D E F G H A B C D E F G H ...

Страница 33: ...Outer case cabinet R 310HW 1 BF 2 1 GCABUA889WRPZ Outer case cabinet R 310HK 1 BF 2 2 FDAI A265WRYZ Bottom plate 1 AW 2 3 GLEGPA074WRE0 Foot 4 AC CONTROL PANEL PARTS 3 1 CPWBFA857WRKZ Control unit assembly 1 BH 3 2 HPNLCB787WRRZ Control panel frame R 310HW 1 AT 3 2 HPNLCB791WRRZ Control panel frame R 310HK 1 AT 3 3 PSHEPA890WRZZ Graphic sheet R 310HW 1 AW 3 3 PSHEPA909WRZZ Graphic sheet R 310HK 1 ...

Страница 34: ...3 LX CZA073WRE0 Special screw 2 AC 7 4 LX CZ0052WRE0 Special screw 2 AA 7 5 LX EZA042WRE0 Special screw 2 AB 7 6 XHPSD30P06000 Screw 3mm x 6mm 1 AA 7 7 XHPSD40P08000 Screw 4mm x 8mm 5 AA 7 8 XHTSD40P08RV0 Screw 4mm x 8mm 4 AA 7 9 XHTSD40P12RV0 Screw 4mm x 12mm 1 AA 7 10 XOTSD40P08000 Screw 4mm x 8mm 14 AA 7 11 XOTSE40P08000 Screw 4mm x 8mm R 310HW 1 AA 7 11 XOTSF40P08000 Screw 4mm x 8mm R 310HK 1 ...

Страница 35: ...TS A A 7 10 7 1 4 1 4 5 4 4 4 13 6 5 7 3 4 3 4 9 2 1 1 7 7 3 1 10 1 9 4 10 7 10 7 10 7 8 4 11 7 5 4 17 7 4 7 10 1 5 1 4 4 2 1 1 1 1 1 11 7 7 7 10 7 10 7 7 6 4 7 11 7 12 7 2 7 2 7 10 7 10 7 10 7 6 1 2 7 8 4 8 1 8 7 10 7 8 1 2 2 3 2 2 4 12 4 14 7 9 4 16 1 3 4 15 1 6 7 1 6 1 6 2 4 7 4 6 2 3 2 3 2 3 ...

Страница 36: ...1 2 3 A B C D E F G H A B C D E F G H 2003 SHARP CORP 3S1 700E Printed in U S A DOOR PARTS CONTROL PANEL PARTS MISCELLANEOUS 3 2 3 1 3 6 3 5 3 4 3 3 Actual wire harness may be different from illustration 6 3 5 1 5 3 5 2 3 4 5 4 5 5 5 7 5 6 ...

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