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R-351NW

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.

5 - 2

Cronometro

Minuto Extra

1 Mantequilla
2 Chocolate

1 Helados
2 Queso crema

1 Coberturas de

postres

DESCONGELACION

RECALENTAR

COCCION

1 Verdura
Fresca
2 Came Molida
3 Papa Asada
4 Arroz
5 Verdura

6 Entradas

Congelada

Congeladas

1 Came Molida
2 Aves

3 Bistec/

Deshuesadas

Chuletas
4 Aves

1 Caserola
2 Sopa
3 Pizza
4 Bebida
5 Plato Principal
6 Pan Presco
7 Pan Congelada
8 Veroura Bnlatada

Derretir

Suavizar

Calentar

Function Rapida

Reloj

Nivel de

Potencia

Comienzo

Detencion

Cancelacion

Palomitas de Maiz

Service_R-351NW.indd 9

6/26/09 6:30:49 PM

Содержание R-351NW

Страница 1: ...da Reloj Nivel de Potencia Comienzo Detencion Cancelacion Palomitas de Maiz S3910R351NPAL MICROWAVE OVEN R 351NW In the interest of user safety the oven should be restored to its original condition and only parts identical to those speci fied should be used WARNING TO SERVICE PERSONNEL Microwave ovens contain circuitry capable of producing very high voltage and current contact with following parts...

Страница 2: ...8 3 9 H BLOWN MONITOR FUSE TEST 8 4 10 I NOISE FILTER TEST 8 4 11 J TOUCH CONTROL PANEL ASSEMBLY TEST 8 4 CONTENTS 12 K KEY UNIT TEST 8 5 13 L RELAY TEST 8 6 14 M DEFROST TEST 8 6 15 N FOIL PATTERN ON THE PRINTED WIRING BOARD TEST 8 6 CHAPTER 9 TOUCH CONTROL UNIT ASSEMBLY 1 OUTLINE OF TOUCH CONTROL PANEL 9 1 2 SERVICING FOR TOUCH CONTROL PANEL 9 1 CHAPTER 10 PRECAUTIONS FOR USING LEAD FREE SOLDER ...

Страница 3: ... 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 operativ...

Страница 4: ...t open 3 Discharge high voltage 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 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 Discha...

Страница 5: ...ity 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 mea sured accurately 4 Set the cooking control on Full Power Cooking Mode 5 Clos...

Страница 6: ...s 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 the following parts...

Страница 7: ...inutes 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 40 of FULL Power P 30 approx 30 of FULL Power P 20 approx 20 of FULL Power P 10 approx 10 of FULL Power P 0 No power throughout ...

Страница 8: ... the event of an electrical short circuit grounding reduces the risk of electric shock by providing an escape wire for the electric current WARNING Improper use of the grounding plug can result in a risk of electric shock Electrical Requirements The electrical requirements are a 120 volt 60 Hz AC only 15 or 20 amp fused electrical supply It is recommended that a separate circuit serving only this ...

Страница 9: ...xtra 1 Mantequilla 2 Chocolate 1 Helados 2 Queso crema 1 Coberturas de postres DESCONGELACION RECALENTAR COCCION 1 Verdura Fresca 2 Came Molida 3 Papa Asada 4 Arroz 5 Verdura 6 Entradas Congelada Congeladas 1 Came Molida 2 Aves 3 Bistec Deshuesadas Chuletas 4 Aves 1 Caserola 2 Sopa 3 Pizza 4 Bebida 5 Plato Principal 6 Pan Presco 7 Pan Congelada 8 Veroura Bnlatada Derretir Suavizar Calentar Functio...

Страница 10: ... energized and the digital read out displays 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 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 pri mary interlo...

Страница 11: ... O R C E N I L V 0 5 2 C A F µ 2 2 0 S S A P Y B E N I L R O T I C A P A C V 5 2 1 C A F µ 3 3 0 0 0 S S A P Y B E N I L R O T I C A P A C V 5 2 1 C A F µ 3 3 0 0 0 L N R E T L I F E S I O N MAGNETRON NOTE indicates components with potentials above 250V 120V AC 60 Hz OVEN LAMP OVEN LAMP RELAY TURN TABLE MOTOR FAN MOTOR POWER TRANSFORMER R O T I N O M H C T I W S RECTIFIER N O R T E N G A M SECONDA...

Страница 12: ...TERLOCK RELAY RY2 SECONDARY INTERLOCK SWITCH AND MONITOR SWITCH FORPROPEROPERATION REFERTOCHAPTER TEST PROCEDURE NOTE MONITOR FUSE AND MONITOR SWITCH ARE REPLACED AS AN ASSEMBLY Figure D 1 Door Open Mechanism Latch Heads Door Switch Lever Latch Hook Door Sensing Switch Monitor Switch Secondary Interlock Switch 4 TURNTABLE MOTOR The turntable motor rotates the turntable located on the bottom of the...

Страница 13: ...unctions 1 TROUBLESHOOTING CHART RE CK A B C D E F F G H RE RE CK J CK CK CK K L N I POSSIBLE CASE AND DEFECTIVE PARTS D R O C R E W O P N I T R O H S G N I R I W D E N E P O R O T R O H S N O R T E N G A M R E M R O F S N A R T R E W O P Y L B M E S S A R E I F I T C E R V H R O T I C A P A C E G A T L O V H G I H E S U F E R U T A R E P M E T T U O T U C L A M R E H T r o M E T S Y S K C O L R E...

Страница 14: ...ure The normal result should be 32 1 to 59 7 F 17 9 to 33 2 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 power output low rise in water temperature which would extend cooking time or high power output high rise in water temperature which would reduce cooking time Because ...

Страница 15: ...Above 150 C 302 F Closed circuit Thermal cut out 145 C This is not resetable type Above 145 C 293 F Closed circuit 5 An open temperature fuse Magnetron or thermal cut out Magnetron indicates overheating of the magnetron Check for restricted air flow to the magnetron especially the cooling fan and air guide An open temperature fuse Oven or thermal cut out Oven indicates overheating of the oven exch...

Страница 16: ...contacts are closed replace the circuit board 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 8 G MONITOR SWITCH TEST 1 Disconnect the power supply cord and then remove outer case 2 Open the door and block it open 3 ...

Страница 17: ...ting 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 MEASURING POINT INDICATION OF OHMMETER Between N and L Open circuit Between terminal N and WHITE Short circuit Between terminal L and RED Short circuit 11 J TOUCH CONTROL PANEL ASSEMBLY TEST The touch control panel consists of circuits including semicon...

Страница 18: ...ing 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 12 K KEY UNIT TEST 1 Disconnect the power supply...

Страница 19: ...e high voltage capacitor 11 Reconnect all leads removed from components during testing 12 Re install the outer case cabinet 13 Reconnect the power supply cord after the outer case is installed 14 Run the oven and check all functions 14 M DEFROST TEST WARNING The oven should be fully assembled before following procedure 1 Place one cup of water in the center of the turntable tray in the oven cavity...

Страница 20: ...e 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 Follow the troubleshooting guide given below for repair 8 7 STEPS OCCURRENCE CAUSE OR CORRECTION 1 The rated AC voltage is not present between the cabinet side terminal of the relay RY1 and the oven si...

Страница 21: ... that was requested 2 Control Unit Control unit consists of LSI reset circuit indicator circuit power source circuit relay circuit buzzer circuit synchronizing signal circuit and back light circuit 1 Reset Circuit This circuit generates a signal which resets the LSI to the initial state when power is supplied 2 Indicator Circuit This circuit consists of 14 segments and 3 common electrodes using a ...

Страница 22: ...erefore 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 must short both ends of the door sensing switch on PWB of the touch control panel with a jumper which brings about an operational state that is equivalent to the oven door being closed As for the sensor related controls of the touch control panel checking ...

Страница 23: ... is used and that the iron temperature is adjusted accordingly 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 so...

Страница 24: ...y 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 not intact 3 If the door is not closed 4 If the outer case cabinet is not fitted 1 WARNING WARNING FOR WIRING WARNING Avoid possible exposure to microwave energy Please follow the instructions below before operating the oven To prevent an electric shock take the ...

Страница 25: ...h voltage wire of high voltage rectifier assembly from the 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 ...

Страница 26: ...IS IN PLACE AND MOUNTING SCREWS ARE TIGHTENED SECURELY 7 CONTROL PANEL ASSEMBLY 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 the leads from the control unit 1 Disconnect the power supply cord and remove outer case 2 Open the door and block it open 3 Discharge high voltage capacitor 4 Push the leve...

Страница 27: ...or because the coil may be cut or injured Do not disfigure the bracket by touching with the pliers 8 Remove the fan blade assembly from the shaft of the fan motor by pulling and rotating the fan blade with your hand 9 Now the fan blade will be free CAUTION Do not re use the removed fan blade because the hole for shaft may be larger than normal 10 Now the fan motor is free 2 INSTALLATION 1 Install ...

Страница 28: ...terminal L of the noise filter Oven Cavity Back Plate Square Hole Moulding Cord Stopper Power Supply Cord 11 5 1 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 Remove the single 1 screw holding the green wire to the oven cavity back plate 5 Disconnect the leads of the power supply cord from the noise filter re...

Страница 29: ...rocedure Figure C 4 Latch Switch Adjustments Latch Heads Door Switch Lever Latch Hook Door Sensing Switch Monitor Switch Secondary Interlock Switch 1 REMOVAL 1 Disconnect the power supply cord 2 Open the door slightly 3 Insert a putty knife thickness of about 0 5mm into the gap between the choke cover and door frame as shown in Figure C 5 to free engaging parts 4 Pry the choke cover by inserting a...

Страница 30: ...microwave leakage around door with an approved microwave survey meter Refer to Microwave Measurement Procedure NOTE The door on a microwave oven is designed to act as an electronic seal preventing the leakage of microwave energy from oven cavity during cook cycle This function does not require that door be air tight moisture condensation tight or light tight Therefore occasional appearance of mois...

Страница 31: ...R E D P N K B L K W H T R E D N R G Y R G Y R G N R G K L B Y R G T H W Y R G D E R D E R N R G K L B K N P Y R G E S U F R E T L I F E S I O N R O T O M N A F E R U T A R E P M E T N E V O E S U F E R U T A R E P M E T N O R T E N G A M E S U F K L B T H W 2 1 T H W T H W T H W D E R 1 Y R Y R A M I R P K C O L R E T N I Y A L E R B N C B N C 1 T 1 2 2 Y R T I N U L O R T N O C Y R G P M A L N E ...

Страница 32: ...R 351NW 12 2 2 Control Unit Circuit Figure S 2 Figure S 2 Control Panel Circuit ...

Страница 33: ...R 351NW 12 3 3 Printed Wiring Board of Power Unit Figure S 3 Figure S 3 Printed Wiring Board of Power Unit ...

Страница 34: ...R 351NW 12 4 ...

Страница 35: ...VEN PARTS 2 DOOR AND CONTROL PANEL PARTS Parts marked may cause undue microwave exposure Parts marked S are used in voltage more than 250V INDEX DOOR PROTECTION SHEET SPADPA204WRE0 TOP PAD ASSEMBLY FPADBA616WRKZ PLASTIC BAG SSAKHA034WRE0 Not replaceable items PACKING CASE SPAKCE808WREZ BOTTOM PAD ASSEMBLY FPADBA617WRKZ CABINET COVER SPAKHA011WRE0 for R 307NK FOAM SHEET SPAKHA012WREZ only for R 307...

Страница 36: ... 4 12 2 1 7 1 1 13 1 14 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 9 7 2 7 2 7 10 7 10 7 10 7 6 1 12 7 8 4 8 1 8 7 12 7 8 1 2 2 3 2 2 4 12 4 6 4 14 7 1 1 3 4 16 4 15 1 6 7 1 6 1 6 2 4 7 2 3 2 3 4 12 2 3 ...

Страница 37: ...150C Magnetron AG 1 12 RTHM A145WRZZ Thermal cut out 145C Magnetron Interchangeable AK 1 13 FPWBFA385WRKZ Noise filter assembly AV 1 14 QFS BA009WRE0 Fuse 20A AH CABINET PARTS 2 1 GCABUA883WRPZ Outer case cabinet BF 2 2 GDAI A360WRWZ Bottom plate AS 2 3 GLEGPA074WRE0 Foot AC OVEN PARTS 4 1 PHOK A145WRFZ Latch hook AL 4 2 LBNDKA172WRPZ Capacitor holder AM 4 3 NFANJA053WRFZ Fan blade AG 4 4 FOVN A56...

Страница 38: ...R 351NW 4 2 DOOR AND CONTROL PANEL PARTS 3 2 6 7 6 8 3 3 3 6 3 8 3 9 3 2 2 3 2 3 3 5 3 4 3 1 3 7 5 1 5 3 3 2 1 5 2 5 4 5 5 5 8 5 7 5 6 Actual wire harness may be different from illustration 6 5 6 3 6 6 ...

Страница 39: ...er AF 3 5 MSPRCA050WRE0 Button spring AB 3 6 PSHEPB021WREZ LED sheet AQ 3 7 QCNC A024WRZZ Rubber connector AE 3 8 RLCDSA128DRZZ Liquid crystal display AQ 3 9 XEPS730P08XS0 Screw 4mm x 8mm AB DOOR PARTS 5 1 FDORFA402WRTZ Door panel BC 5 2 PSHEPB017WREZ Sealer film AR 5 3 GWAKPB216WRRZ Door frame AX 5 4 HPNL A924WRRZ Door screen AS 5 5 LSTPPA230WRFZ Latch head AG 5 6 MSPRTA187WRE0 Spring AC 5 7 GCOV...

Страница 40: ...UC A833WRPZ 1 4 8 AM PDUC A854WRPZ 1 4 9 AL PHOK A145WRFZ 1 4 1 AL PPACGA176WREZ 1 4 10 AC PSHEPA382WRE0 2 5 2 AH PSHEPB017WREZ 2 5 2 AR PSHEPB021WREZ 2 3 6 AQ PSHEPB307WREZ 2 3 2 1 AQ PSHEPB309WREZ 2 3 2 1 AQ PSPA A141WRFZ 1 4 18 AH Q QCNC A024WRZZ 2 3 7 AE QFS TA014WRE0 1 1 7 AG 1 1 12 AG QSW KA045DRZZ 2 3 2 2 AT QSW MA085WRE0 1 1 1 AF QSW MA147WRZZ 1 1 1 AG R RC QZA218WRE0 1 1 5 AW RC QZA295WRZ...

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