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27

R-410HK
R-410HW
R-409HK

COOLING FAN MOTOR REMOVAL

REMOVAL
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 wire leads from the fan motor.
5. Remove the two (2) screws  holding the fan motor to the

oven cavity back plate.

6. Remove the fan blade from the fan motor shaft according

to the following procedure.

7. Hold the edge of the rotor of the fan motor by using a pair

of groove joint pliers.

CAUTION:
*

Make sure that no metal pieces enter the gap between
the rotor and the stator of the fan motor because the
rotor is easily shaven by pliers and metal pieces may
be produced.

*

Do not touch the pliers to the coil of the fan motor
because the coil may be cut or injured.

*

Do not disfigure the bracket by touching with the
pliers.

8. Remove the fan blade from the shaft of the fan motor by

pulling and rotating the fan blade with your hand.

9.  Now, the fan blade and the fan motor will be free.

CAUTION:
*

Do not reuse the removed fan blade because the hole
(for shaft) may be larger than normal.

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 blade.

4. Install the fan blade to the shaft of fan motor by pushing

the fan blade with a small, light weight, ball peen hammer
or rubber mallet.

CAUTION:
*

Do not hit the fan blade strongly when installed
because the bracket may be disfigured.

*

Make sure that the fan blade rotates smooth after
installation.

*

Make sure that the axis of the shaft is not slanted.

5. Install the fan motor to the oven cavity back plate with the

two (2) screws.

6. Connect the wire leads to the fan motor, referring to the

pictorial diagram.

Side View

Rear View

DOOR SENSING SWITCH/PRIMARY INTERLOCK SWITCH AND MONITOR SWITCH REMOVAL

1. Disconnect the power supply cord and remove outer case.
2. Open the door and block it open.
3. Discharge high voltage capacitor.
4. Disconnect wire leads from the switches.
5. Remove two (2) screws holding latch hook to oven flange.
6. Remove latch hook assembly from oven flange.
7. Push outward on the two (2) retaining tabs holding switch

in place.

8. Switch is now free.

At this time switch lever will be free, do not lose it.

Re-install
1. Re-install each switch in its place. The primary interlock/

monitor switches are in the lower position and the door
sensing switch is in the upper position.

2. Re-connect wire leads to each switch.

Refer to pictorial diagram.

Содержание R-409HK

Страница 1: ... 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 18 COMPONENTREPLACEMENTANDADJUSTMENTPROCEDURE 23 PICTORIALDIAGRAM 30 CPUUNITCI...

Страница 2: ...ion 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 Micr...

Страница 3: ...e 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 Rec...

Страница 4: ...nter of the 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 ...

Страница 5: ...ot 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 person nel Do not contact the following parts while the appliance is energized High Voltage Ca...

Страница 6: ...ct SPECIFICATION ITEM DESCRIPTION Power Requirements 120 Volts 14 3Amperes 1700watts R 410HK HW 14 0 Amperes 1600 watts R 409HK 60 Hertz Single phase 3 wire grounded PowerOutput 1200 watts IEC 705 TEST PROCEDURE R 410HK HW 1100 watts IEC 705 TEST PROCEDURE R 409HK Operatingfrequencyof2450MHz CaseDimensions Width 21 21 32 Height 12 3 8 Depth 18 7 16 Cooking Cavity Dimensions Width 15 23 32 Height 9...

Страница 7: ...he oven will not operate unless the door is securely closed 3 Removable turntable support 4 Removable turntable The turntable will rotate clockwise or counterclockwise 5 Oven lamp It will light when oven is operating or door is opened 6 Oven door with see through window 7 Ventilation openings Rear 8 Auto Touch control panel 9 Time display Digital display 99 minutes 99 seconds 10 Wave guide cover 1...

Страница 8: ...premainson andthedigitalread outdisplaysthetimestillremainingin the cook cycle when the door was opened 7 The monitor switch electrically monitors the operation of theprimaryinterlockswitchandsecondaryinterlockrelay andismechanicallyassociatedwiththedoorsothatitwill function in the following sequence 1 When the door opens from the closed position the secondary interlock relay RY2 and primary inter...

Страница 9: ...OTOR OVEN LAMP MONITOR SWITCH PRIMARY INTERLOCK SWITCH POWER TRANSFORMER MAGNETRON HIGH VOLTAGE CAPACITOR ORG WHT SECONDARY INTERLOCK RELAY ORG BRN ORG ORG RED RED GRY GRY GND WHT F3 F2 F1 SENSOR RY1 OVEN LAMP RELAY COM N O HUMIDITY COM N C HIGH VOLTAGE RECTIFIER ORG CAVITY TEMPERATURE FUSE 120VAC 60Hz COM RED RED WHT WHT WHT WHT BRN WHT WHT WHT ORG RED WHT WHT GRN N O B2 B1 CONTROL UNIT N O RY2 C...

Страница 10: ...il to open the C T fuse blows simultaneously with closing of the monitor switch contacts CAUTION BEFORE REPLACING A BLOWN C T FUSE TEST THE DOOR SENSING SWITCH SEC ONDARY INTERLOCK RELAY RY2 RELAY RY1 PRIMARY INTERLOCK SWITCH AND MONITOR SWITCH FOR PROPER OPERA TION REFER TO CHAPTER TEST PROCE DURE NOTE C T FUSE AND MONITOR SWITCH ARE REPLACED AS AN ASSEMBLY TURNTABLE MOTOR The turntable motor rot...

Страница 11: ...ssembly 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 power tra...

Страница 12: ...hen START pad is touched Oven seems to be operating but little or no heat is produced in oven load Food incompletely cooked or not cooked at all at end of cook cycle Oven goes into a cook cycle but extremely uneven heating is pro duced in oven load food Oven does not cook properly when programmed for Cooking Power P 50 mode Operates properly on Cooking P HI HIGH mode Oven goes into COMPU DEFROST b...

Страница 13: ...EME CAUTION SHOULD BE OBSERVED Power output of the magnetron can be measured by performing a water temperature rise test This test shouldonlybeusedifabovetestsdonotindicateafaultymagnetronandthereisnodefectinthefollowing componentsorwiring siliconrectifier highvoltagecapacitorandpowertransformer Thistestwillrequire a 16 ounce 453cc measuring cup and an accurate mercury thermometer or thermocouple ...

Страница 14: ...r 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 C T FUSE TEST 1 Disconnect the power supply cord and then remove outer case 2 Open the door and block it op...

Страница 15: ...on and the door is closed the cooling fan turntable and oven light will be activated by RY1 SECONDARYINTERLOCKRELAY RY2 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 Disconnecttwo 2 wireleadsfromthemaletabterminalsoftheSecondaryInterlockRelay Checkthe state of the relay contacts using a ohmmeter The relay contac...

Страница 16: ...ads 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 I TOUCH CONTROL PANEL ASSEMBLY 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 4 Before performing this test make sure that the primary interlock...

Страница 17: ...n and check all functions 4 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 install the outer case cabinet 6 Reconnect the power supply cord after the outer case is installed 7 Run the oven and check all functions TEST PROCED...

Страница 18: ...ective RELAY SYMBOL OPERATIONAL VOLTAGE CONNECTED COMPONENTS RY1 Approx 12V D C Oven lamp Turntable motor Cooling fan motor RY2 Approx 12V D C Power transformer 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 install the outer case cabinet 13 Recon...

Страница 19: ...ct the power supply cord after the outer case is installed M FOIL PATTERN ON THE PRINTED WIRING BOARD TEST RY2 VRS1 L1 J1 a b c d 9 Run the oven and check all functions 2 Followthetroubleshootingguidegivenbelow ifindicatordoesnotlightupafterabovecheckandrepairs are finished 1 Disconnect the power supply cord and then remove outer case 2 Open the door and block it open 3 Discharge high voltage capa...

Страница 20: ...e LSI to the initial state when power is supplied 2 IndicatorCircuit This circuit consists of 22 segments and 3 common electrodes using a Liquid Crystal Display 3 Power Source Circuit This circuit generates voltages necessary in the control unit from the AC line voltage In addition the synchronizing signal is available in order to compose a basic standard time in the clock circuit Symbol Voltage A...

Страница 21: ...uare waveform voltage is delivered to the RY1 driving circuit and RY2 control circuit 17 P51 OUT Terminal not used 18 P50 OUT Magnetron high voltage circuit driving signal To turn on and off the cook relay RY2 The signalsholds L levelduringmicrowavecook ing and H level while not cooking In other cooking modes variable cooking the signal turns to H level and L level in repetition according to the p...

Страница 22: ...s input to P70 P71 P41 P45 P47 and AN3 terminal while one of G7 line keys on key matrix is touched 35 P25 OUT Key strobe signal Signal applied to touch key section A pulse signal is input to P70 P71 P41 P45 P47 and AN3 terminal while one of G6 line keys on key matrix is touched 36 P24 OUT Key strobe signal Signal applied to touch key section A pulse signal is input to P70 P71 P41 P45 P47 and AN3 t...

Страница 23: ...20 52 SEG 20 SEG10 62 SEG 10 SEG21 51 SEG 21 73 VCC IN Power source voltage GND 0V 74 VREF IN A D converter power source voltage GND 0V The power source voltage to drive the A D converter Connected to GND 75 AVSS IN A D converter power source voltage 5 0V The power source voltage to drive the A D converter 76 COM3 OUT Terminal not used 77 COM2 OUT Common data signal Connected to LCD signal COM1 78...

Страница 24: ...touch control panel then it is possible to check and repair the controls of the touch control panel it is also possible to check the sensor related controls of the touch control panel by using the dummy resistor s 3 Servicing Tools Toolsrequiredtoservicethetouchcontrolpanelassembly 1 Solderingiron 30W Itisrecommendedtouseasolderingironwithagrounding terminal 2 Oscilloscope Singlebeam frequencyrang...

Страница 25: ... the power supply cord 2 Make sure that a definite click can be heard when the microwave oven door is unlatched Hold the door in a closed position with one hand then push the door open button with the other this causes the latch leads to rise it is then possible to hear a click as the door switches operate 3 Visuallycheckthedoorandcavityfaceplatefordamage dents cracks signs of arcing etc Carry out...

Страница 26: ...nt lead short one of the power transformer from the high voltage capacitor 7 Remove one 1 screw holding capacitor holder with the high voltage rectifier to the base plate 8 Disconnect rectifier terminal from capacitor High voltage rectifier assembly is now free 9 Remove capacitor holder Capacitor is now free CAUTION WHEN REPLACING HIGH VOLTAGE RECTI FIER AND HIGH VOLTAGE CAPACITOR GROUND SIDE TERM...

Страница 27: ...ol panel frame 3 Placethekeyunitfirmlytothecontrolpanelframe by rubbing with soft cloth not to scratch 1 Disconnect the power supply cord and remove outer case 2 Open the door and block it open 3 Discharge high voltage capacitor 4 Remove the oven lamp from the oven lamp socket 5 Pullthewireleadsfromtheovenlampsocketby pushing the terminal hole of the oven lamp socket with the small flat type screw...

Страница 28: ...ake sure that the LCD sheet and the liquid crystal display in good condition 3 Remove the backing paper from the new graphic sheet 4 Adjust the upper edge and right edge of the graphic sheet to the large depression on the surface of the control panel frame 5 Attach the graphic sheet to the control panel frame by rubbing with a soft cloth not to scratch 6 Reinstall the control panel frame to the ov...

Страница 29: ...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 blade 4 Install the fan blade to the shaft of fan motor by pushing thefanbladewithasmall lightweight ballpeenhammer or rubber mallet CAUTION Do not hit the fan blade strongly when installed because the bracket may be disfigured Make sure that the fan blade rotates smo...

Страница 30: ...oosen 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 hook pushing and pulling upper portion of door toward the oven face Then check lower portion of the latch Figure C 3 Latch Switch Adjustments hook pushing and pulling upper portion of door toward the o...

Страница 31: ... emission limitation standards After any service make sure of the following 1 Door latch heads smoothly 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 Doorispositionedwithitsfacepressedtowardcavityface plate 4 Checkformicrowaveleakagearounddoorwithanapprove...

Страница 32: ...nnected to the terminal with blue mark on the oven light socket POWER TRANSFORMER COM NO NOTE The neutral WHT GRY wire must be connected to the terminal with N mark on the power supply cord RED WHT BRN RED WHT WHT ORG WHT RED PNK GRN GRN to Oven cavity WHT WHT WHT WHT BLUE MARK RED WHT CAVITY TEMP FUSE FAN MOTOR C T FUSE RED RED WHT GRY WHT GRN ORG ORG RY2 RY1 SECONDARY INTERLOCK RELAY T1 1 2 POWE...

Страница 33: ... P70 XIN XOUT VSS P27 P26 P25 P24 P23 P22 P21 P20 VL3 COM0 COM1 COM2 COM3 AVSS VREF VCC SEG0 SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 CST4 00MGW R67 15K R66 15K R65 15K R64 15K R63 15K R62 15K R61 15K R60 15K R80 1M R110 15K G F POWER LEVEL CLEAR KEY UNIT DEFROST MINUTE PLUS REHEAT R78 R77 R76 R75 R74 C64 C63 C62 C61 C60 R68 15K R69 15K R70 15K R71 15K R72 15K P70 P71 P41 P45 G CPU UNIT R41 15K R40 4 7K...

Страница 34: ...P20 VL3 COM0 COM1 COM2 COM3 AVSS VREF VCC SEG0 SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 CST4 00MGW R67 15K R66 15K R65 15K R64 15K R63 15K R62 15K R61 15K R60 15K R80 1M R110 15K G F POWER LEVEL CLEAR KEY UNIT DEFROST MINUTE PLUS REHEAT R78 R77 R76 R75 R74 C64 C63 C62 C61 C60 R68 15K R69 15K R70 15K R71 15K R72 15K P70 P71 P41 P45 G CPU UNIT R41 15K R40 4 7K C4 00 01uF 25V POWER UNIT DOOR COM Q20 DTA143...

Страница 35: ... B C D E F G H Figure S 5 Printed Wiring Board of Power Unit RY1 RY2 E C B E C B E C B VRS1 L1 D7 D3 P S D4 C2 D1 C1 D2 R8 R7 R2 R4 Q3 Q4 SP1 T1 D6 DZ1 WH 2 WH 2 LED Q2 D5 D8 D30 1 2 J1 J6 J2 J5 R5 C4 C5 CN B CN F 1 2 3 C10 DIP CHIP SIDE R90 J3 D31 R3 R6 E B 1 1 2 2 Q1 ...

Страница 36: ... 409HK 1 AE 3 2 HPNLFB007MRF0A M Control panel frame R 410HW 1 AE 3 3 PSHEPB122MRR0 M Key unit R 410HK 1 AG 3 3 PSHEPB121MRR0 M Key unit R 410HW 1 AG 3 3 PSHEPB114MRR0 M Key unit R 409HK 1 AG 3 4 JBTN B151MRF0A M Open button R 410HK R 409HK 1 AD 3 4 JBTN B155MRF0A M Open button R 410HW 1 AF 3 5 MSPRTA050WRE0 M Open button spring 1 AA 3 6 XEPSD30P06XS0 M Screw 3mm x 10mm 5 AA OVEN PARTS 4 1 LBNDKB0...

Страница 37: ... wire harnes 1 AU 6 3 FROLPB025MRK0 M Turntable support 1 AN 6 4 NTNT A108WREZ M Turntable tray 1 AM 6 5 TCAUAB045MRR0 M Monitor caution label 1 AA 6 6 TCAUAB038MRR0 M DHHS Screw caution label 1 AB 6 7 TINSEB355MRK0 M Operation manual R 410HK HW 1 AD 6 7 TINSEB356MRK0 M Operation manual R 409HK 1 AD 6 8 QW QZB016MRE0 M High voltage wire A 1 AC SCREWS NUTSANDWASHERS 7 1 LX BZA041WRE0 M Special scre...

Страница 38: ... E F G H A B C D E F G H OVEN AND CABINET PARTS 2 3 4 7 6 6 1 5 4 6 4 8 4 9 6 4 6 3 2 1 7 5 1 10 4 10 7 2 7 2 4 3 1 11 1 8 7 3 7 5 7 5 7 6 4 2 7 4 1 9 1 3 1 4 7 1 1 7 1 7 4 4 7 1 4 1 1 1 1 2 2 2 2 2 2 2 2 2 7 4 7 4 4 11 7 4 6 5 1 6 4 5 1 12 7 4 7 7 7 4 7 7 1 6 ...

Страница 39: ... B C D E F G H A B C D E F G H CONTROL PANEL PARTS 5 1 2 5 1 1 5 1 5 4 5 3 5 2 5 7 5 8 3 3 3 2 3 5 3 1 3 4 3 6 Actual wire harness may be different from illustration 6 8 6 2 6 1 Items 5 7 5 8 5 9 are not included with assembly 5 1 5 6 5 5 5 9 DOOR PARTS ...

Страница 40: ... AND ACCESSORIES DOOR PROTECTION SHEET PLASTIC BAG PACKING CASE TOP PAD ASSEMBLY INTO THE OVEN CAVITY 6 4 TURNTABLE TRAY 6 7 OPERATION MANUAL BOTTOM PAD ASSEMBLY TRAY HOLDER 6 3 TURNTABLE SUPPORT ON TOP OF THE OVEN Non replaceable items ...

Страница 41: ...39 R 410HK R 410HW R 409HK NOTES ...

Страница 42: ...40 R 410HK R 410HW R 409HK NOTES ...

Страница 43: ...41 R 410HK R 410HW R 409HK NOTES ...

Страница 44: ...HT 2003 BY SHARP CORPORATION ALL RIGHTS RESERVED No part of this publication may be repro duced stored in retrieval systems or trans mitted in any form or by any means elec tronic mechanical photocopying recording orotherwise withoutpriorwrittenpermission of the publisher ...

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