Sharp R-24AT manual

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Buen manual de instrucciones

Las leyes obligan al vendedor a entregarle al comprador, junto con el producto, el manual de instrucciones Sharp R-24AT. La falta del manual o facilitar información incorrecta al consumidor constituyen una base de reclamación por no estar de acuerdo el producto con el contrato. Según la ley, está permitido adjuntar un manual de otra forma que no sea en papel, lo cual últimamente es bastante común y los fabricantes nos facilitan un manual gráfico, su versión electrónica Sharp R-24AT o vídeos de instrucciones para usuarios. La condición es que tenga una forma legible y entendible.

¿Qué es un manual de instrucciones?

El nombre proviene de la palabra latina “instructio”, es decir, ordenar. Por lo tanto, en un manual Sharp R-24AT se puede encontrar la descripción de las etapas de actuación. El propósito de un manual es enseñar, facilitar el encendido o el uso de un dispositivo o la realización de acciones concretas. Un manual de instrucciones también es una fuente de información acerca de un objeto o un servicio, es una pista.

Desafortunadamente pocos usuarios destinan su tiempo a leer manuales Sharp R-24AT, sin embargo, un buen manual nos permite, no solo conocer una cantidad de funcionalidades adicionales del dispositivo comprado, sino también evitar la mayoría de fallos.

Entonces, ¿qué debe contener el manual de instrucciones perfecto?

Sobre todo, un manual de instrucciones Sharp R-24AT debe contener:
- información acerca de las especificaciones técnicas del dispositivo Sharp R-24AT
- nombre de fabricante y año de fabricación del dispositivo Sharp R-24AT
- condiciones de uso, configuración y mantenimiento del dispositivo Sharp R-24AT
- marcas de seguridad y certificados que confirmen su concordancia con determinadas normativas

¿Por qué no leemos los manuales de instrucciones?

Normalmente es por la falta de tiempo y seguridad acerca de las funcionalidades determinadas de los dispositivos comprados. Desafortunadamente la conexión y el encendido de Sharp R-24AT no es suficiente. El manual de instrucciones siempre contiene una serie de indicaciones acerca de determinadas funcionalidades, normas de seguridad, consejos de mantenimiento (incluso qué productos usar), fallos eventuales de Sharp R-24AT y maneras de solucionar los problemas que puedan ocurrir durante su uso. Al final, en un manual se pueden encontrar los detalles de servicio técnico Sharp en caso de que las soluciones propuestas no hayan funcionado. Actualmente gozan de éxito manuales de instrucciones en forma de animaciones interesantes o vídeo manuales que llegan al usuario mucho mejor que en forma de un folleto. Este tipo de manual ayuda a que el usuario vea el vídeo entero sin saltarse las especificaciones y las descripciones técnicas complicadas de Sharp R-24AT, como se suele hacer teniendo una versión en papel.

¿Por qué vale la pena leer los manuales de instrucciones?

Sobre todo es en ellos donde encontraremos las respuestas acerca de la construcción, las posibilidades del dispositivo Sharp R-24AT, el uso de determinados accesorios y una serie de informaciones que permiten aprovechar completamente sus funciones y comodidades.

Tras una compra exitosa de un equipo o un dispositivo, vale la pena dedicar un momento para familiarizarse con cada parte del manual Sharp R-24AT. Actualmente se preparan y traducen con dedicación, para que no solo sean comprensibles para los usuarios, sino que también cumplan su función básica de información y ayuda.

Índice de manuales de instrucciones

  • Página 1

    R-22AT R-24AT TABLE OF CONTENTS Page SERVICING ................................................................................................................. INSID E FRONT COVER CAUTION, MICROWAVE RADIATION ................................................................................................... ......... 1 WARNING ....................[...]

  • Página 2

    R-22AT R-24AT REMEMBER TO CHECK 3D 1) D isconnect the supply. 2) D oor opened, and wedged open. 3) D ischarge high two voltage capacitors. WARNING: AGAINST THE CHARGE OF THE TWO HIGH-VOLTAGE CAPACITORS. The two high-voltage capacitors remain charged about 60 seconds after the oven has been switched off. Wait for 60 seconds and then short-circuit th[...]

  • Página 3

    R-22AT R-24AT 1 SER VICE MANU AL COMMERCIAL MICROWAVE OVEN R-22AT/ R-24AT GENERAL IMPORTANT INFORMATION This Manual has been prepared to provide Sharp Corp. Service engineers with Operation and Service Information. It is recommended that service engineers carefully study the entire text of this manual, so they will be qualified to render satisfacto[...]

  • Página 4

    R-22AT R-24AT 2 GENERAL INFORMA TION WARNING THIS APPLIANCE MUST BE EARTHED IMPORTANT THE WIRES IN THIS MAINS LEAD ARE COLOURED IN ACCORDANCE WITH THE FOLLOWING CODE: GREEN-AND-YELLOW : EARTH BLUE : NEUTRAL BROWN : LIVE PR ODUCT DESCRIPTION SPECIFICATION ITEM DESCRIPTION Power Requirements 230 - 240 Volts 50 Hertz Single phase, 3 wire earthed Power[...]

  • Página 5

    R-22AT R-24AT 3 APPEARANCE VIEW OVEN 1. Control panel 2. Hole for safety door latches 3. Ceramic floor 4. Splash cover 5. Oven light 6. Air intake filter 7. Air intake openings 8. Oven cavity 9. Door seals and sealing surfaces 10. Door hinges 11. Oven door with see-through window 12. Door safety latches 13. Door handle. 14. Outer cabinet 15. Remova[...]

  • Página 6

    R-22AT R-24AT 4 OPERA TION SEQUENCE to negative voltage of approximately 4000 volts D.C.. 3. The 2450 MHz microwave energy produced in the magnetron generates a wave length of 12.24 cm. This energy is channelled through the waveguide (transport channel) into the oven cavity, where the food is placed to be cooked. 4. When the cooking time is up, a s[...]

  • Página 7

    R-22AT R-24AT 5 NOTE: The ON/OFF time ratio does not exactly corre- spond to the percentage of microwave power, because approx. 3 seconds are needed for heat- ing up the magnetron filament. TWO MAGNETRON OPERATION SYSTEM Two magnetrons MG1+MG2 are equipped in order to get higher microwave power output. The primary windings of the high voltage trans[...]

  • Página 8

    R-22AT R-24AT 6 DOOR OPEN MECHANISM 1. The door release lever is pulled. 2. The upper latch head is lifted up by the linked door release lever. 3. The head lever is lifted up by the door release lever. 4. The joint lever is lifted up by the head lever. 5. The lower latch head is lifted up by the joint lever. 6. Now both latch heads are lifted up, s[...]

  • Página 9

    R-22AT R-24AT 7 EXHAUST OVEN THERMISTOR TH3 The thermistor is a negative temperature coefficient type. The temperature in the exhaust duct is detected through the resistance of the thermistor. If the temperature is high, the control panel will display “EE7” and the oven will stop to avoid overheating and catching fire. If the thermistor is open[...]

  • Página 10

    R-22AT R-24AT 8 “ . “ does not appear on display when power cord is plugged into wall outlet. Control panel can not accept key in. Fuse F1 or F2 blows when the door is opened. Home fuse blows when power cord is plugged into wall outlet. Weak point F3 blows when power cord is plugged into wall outlet. Oven lamp, fan motor and antenna motors do n[...]

  • Página 11

    R-22AT R-24AT 9 A MAGNETRON TEST TEST PROCEDURES PROCEDURE LETTER COMPONENT TEST CARRY OUT 3D CHECKS. Isolate the magnetron from high voltage circuit by removing all leads connected to filament terminal. To test for an open circuit filament use an ohmmeter to make a continuity test between the magnetron filament terminals, the meter should show a r[...]

  • Página 12

    R-22AT R-24AT 10 Room temperature ................................................................................................. T0 = 21 ° C Initial temperature .................................................................................................. T1 = 11 ° C Temperature after (28 + 3) = 31 sec [for R-22AT] ........................[...]

  • Página 13

    R-22AT R-24AT 11 TEST PROCEDURES PROCEDURE LETTER COMPONENT TEST B HIGH VOLTAGE TRANSFORMER TEST WARNING: High voltage and large currents are present at the secondary winding and filament winding of the high voltage transformer. It is very dangerous to work near this part when the oven is on. NEVER make any voltage measurements of the high-voltage [...]

  • Página 14

    R-22AT R-24AT 12 3. CARRY OUT 4R CHECKS. CAUTION: IF THE temperature fuse INDICATES AN OPEN CIRCUIT AT ROOM TEMPERATURE, REPLACE temperature fuse. I THERMISTOR TH1, TH2, TH3 TEST Open Close Display or temperature temperature Condition Check point Magnetron tem- perature fuse (Up- per) TF1 Magnetron tem- perature fuse (Lower) TF2 Exhaust tempera- tu[...]

  • Página 15

    R-22AT R-24AT 13 TEST PROCEDURES PROCEDURE LETTER COMPONENT TEST If the meter does not indicate above resistance, replace the thermistor. 3. CARRY OUT 4R CHECKS. J MOTOR WINDING TEST CARRY OUT 3D CHECKS. Disconnect the leads from the motor. Using an ohmmeter, check the resistance between the two terminals. Resistance of Blower motor should be appro[...]

  • Página 16

    R-22AT R-24AT 14 P PROCEDURES TO BE TAKEN WHEN THE FUSE ON THE PRINTED WIRING BOARD(PWB) IS OPEN TEST PROCEDURES PROCEDURE LETTER COMPONENT TEST f) A certain group of indicators do not light up. g) The figure of all digits flicker. 2-3 Other possible problems caused by defective control unit. a) Buzzer does not sound or continues to sound. b) Cooki[...]

  • Página 17

    R-22AT R-24AT 15 TEST PROCEDURES PROCEDURE LETTER COMPONENT TEST STEPS OCCURRENCE CAUSE OR CORRECTION 1 The rated AC voltage is not present at Check supply voltage and oven power cord. POWER terminal of CPU connector (CN-A). 2 The rated AC voltage is present at primary Touch control transformer or secondary circuit defective. side of touch control [...]

  • Página 18

    R-22AT R-24AT 16 2. Key Unit The key unit is composed of a matrix circuit in which when a key it touched, one of signals P33 - P34 generated by the LSI, is passed through the key and returned to the LSI as one of signals P24 - P27. This model has 20 Memory pads. When the oven is shipped, Memory pad 1 to 10 are set as follows: fig.1. Memory No. Cook[...]

  • Página 19

    R-22AT R-24AT 17 Pin No. Signal I/O Description DESCRIPTION OF LSI LSI(IXA222DR) The I/O signal of the LSI(IXA222DR) is detailed in the following table. 1 VCC IN Power source voltage: GND. VC voltage of power source circuit input. Connected to GND. 2 VEE IN Anode (segment) of Fluorescent Display light-up voltage: -35V. Vp voltage of power source ci[...]

  • Página 20

    R-22AT R-24AT 18 19 P47 OUT Signal to sound buzzer. This signal is to control the 2.5kHz continuous signal. A: Switch touch sound. B: Guidance sound. C: Completion sound. 20-21 P46-P45 - Terminal not used. 22 P44 OUT Oven lamp, Blower motor and Antenna motor driving signal (Square Waveform : 50Hz). To turn on and off the shut-off relay (RY1). The S[...]

  • Página 21

    R-22AT R-24AT 19 Pin No. Signal I/O Description 41-46 P17-P12 OUT Segment data signal. Signal similar to P23.. 47-48 P11-P10 OUT Digit selection signal. The relation between digit signal and digit are as follows: Digit signal Digit P11 .................... 1st. P10 ................... 2nd. P07 .................... 3rd. P06 .................... 4th.[...]

  • Página 22

    R-22AT R-24AT 20 2-2 Memory IC (I-2) CAT24WC16PI is a 4K-bit, serial memory, enabling CMOS to be erased/written electrically. This memory is constructed with 512 registers x 8bits, enabling individual access, read and write operations to be performed. Details of input/output signal for IC2 are as shown in the following diagram. Figure T-2. Relation[...]

  • Página 23

    R-22AT R-24AT 21 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 them is possible if dummy resistor(s) with resistance equal to that of the controls are used. (2) Servicing the touch control panel with[...]

  • Página 24

    R-22AT R-24AT 22 2) How to enter the memory information Example : Suppose cooking time 5 sec. and output power 100% are entered into the memory pad 1. PAD ORDER DISPLAY PHONE (Door close) • SET • SET "NUMBER" • (within 2 sec.) 1 NUMBER 1 • 1 MANUAL/ NUMBER 1 • 0 REPEAT 1 5 NUMBER 1 • 5 1 SET "NUMBER" • SET • Ente[...]

  • Página 25

    R-22AT R-24AT 23 PRECA UTIONS FOR USING LEAD-FREE SOLDER 1. Employing lead-free solder The "Main PWB" of this model employs lead-free solder. This is indicated by the "LF" symbol printed on the PWB and in the service manual. The suffix letter indicates the alloy type of the solder. Example: Indicates lead-free solder of tin, sil[...]

  • Página 26

    R-22AT R-24AT 24 1. Disconnect the oven from power supply. 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 grip the door handle and the door lever assembly with the other, this causes the latch leads to rise, it is then possible to hear a “cli[...]

  • Página 27

    R-22AT R-24AT 25 5. Pull out the wire lead(s) of high voltage transformer(s) from the tube. 6. Disconnect wire lead(s) of high voltage transformer(s) from high voltage capacitor(s). 7. Disconnect the high voltage fuse(s) from high voltage transformer(s). Removal 1. CARRY OUT 3D CHECKS. 2. Remove the rear cabinet, too. 3. Remove the magnetron from t[...]

  • Página 28

    R-22AT R-24AT 26 CAUTION: 1. DISCHARGE THE TWO HIGH VOLTAGE CAPACI- TORS BEFORE TOUCHING ANY OVEN COMPO- NENTS OR WIRING. 2. DO NOT REPLACE ONLY THE HIGH VOLTAGE RECTIFIER. IF IT IS DEFECTIVE, REPLACE THE HIGH VOLTAGE RECTIFIER ASSEMBLY. 3. WHEN REPLACING THE HIGH VOLTAGE RECTI- FIER ASSEMBLY AND THE HIGH VOLTAGE CA- PACITOR, THE CATHODE (EARTH) SI[...]

  • Página 29

    R-22AT R-24AT 27 CONTROL PANEL ASSEMBLY REMOVAL The complete control panel should be removed for re- placement of components. To remove the control panel, proceed as follows: 1. Disconnect the oven from power supply. 2. Wait for 60 seconds to discharge the high voltage capacitor. 3. Remove the air intake filter assembly from the base plate. 4. Remo[...]

  • Página 30

    R-22AT R-24AT 28 Figure C-4. Power supply cord replacement 1. CARRY OUT 3D CHECKS. 2. Remove the control panel from the oven cavity refer- ring to “CONTROL PANEL REMOVAL”. 3. Remove the two (2) screws holding the latch hook to the oven cavity. 4. Open the door and pull the latch hook out of the oven cavity. 5. For stop switch removal 5-1. Disco[...]

  • Página 31

    R-22AT R-24AT 29 cavity face plate is to be less than 1.0mm. 3. The door is positioned with its face depressed toward the cavity face plate. 4. Re-install outer case and check for microwave leakage around door with an approved microwave survey me- ter. (Refer to Microwave Measurement Procedure.) Note: The door on a m icrowave oven is designed to ac[...]

  • Página 32

    R-22AT R-24AT 30 SER VICE INFORMA TION IMP ORTANT: When the magnetron MG1 and/or MG2 is replacing, the relays (RY3 and RY4) on control unit must be replaced at the same time. Because if the magnetron's life has been over, the relay's life may also be over. UPPER AND LOWER LATCH HEADS REMOVAL 7. Remove the door release lever from the door [...]

  • Página 33

    R-22AT R-24AT 31 MICRO W A VE MEASUREMENT After any repair, the microwave oven must be checked for microwave leakage to ensure continued safe operation. BS EN 60335-2-25 specifies that the maximum permitted leakage with a load of 275 ml is 50 W/m 2 (equivalent to 5 mW/cm 2 ) at a distance of 5 cm from the oven. PREPARATION The following items are r[...]

  • Página 34

    R-22AT R-24AT 32 SCHEMATIC NOTE: CONDITION OF OVEN 1. POWER SUPPLY CONNECTED AND/OR 1MINUTE AFTER DOOR CLOSED OR COOK OFF. 2. . APPEAR ON DISPLAY. NOTE: Indicates components with potential above 250 V. Figure O-1 Oven Schematic-OFF Condition Figure O-2 Oven Schematic-IDLE Condition (Door opened condition) SCHEMATIC NOTE: CONDITION OF OVEN 1. FOR 1M[...]

  • Página 35

    R-22AT R-24AT 33 SCHEMATIC NOTE: CONDITION OF OVEN 1. DOOR CLOSED. 2. MANUAL REPEAT KEY TOUCHED. 3. COOKING TIME PROGREMMED. 4. START PAD TOUCHED. Figure O-3 Oven Schematic-Cooking Condition SW5: STOP SWITCH CN-A CN-A F3 : WEAK POINT A017 BLU NEUTRAL LIVE GRN/YLW BRN NOISE FILTER SW1: INTERLOCK SWITCH SW3: MONITOR SWITCH SW4: MONITOR SWITCH NOISE S[...]

  • Página 36

    R-22AT R-24AT 34 Figure S-1. Pictrorial Diagram 1 A B C D E F G H A B C D E F G H 23 45 6 12 34 56 BRN NOISE FILTER BLU NL SW5 : STOP SWITCH TOUCH CONTROL PANEL CN-C 3 6 GRN 2 4 5 1 ORG NO COM. BLU GRN GRN ORG WHT COM. NO SW1: INTERLOCK SWITCH (Cabinet side) COM. NO COM. NC BRN BLU HIGH VOLTAGE COMPONENTS MG1 : MAGNETRON (Upper) White case Black ta[...]

  • Página 37

    R-22AT R-24AT 35 1 A B C D E F G H A B C D E F G H 23 45 6 12 34 56 Figure S-2. Control Panel Circuit 47 44 46 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 P45 P44 P43 P42 INT1 INT0 RESET P71 P70 XIN XOUT VSS 32 31 30 29 28 27 26 25 24 23 22 21 P30 P31 P32 P33 P34 P35 P36 P37 P00 P01 P02 P03 P04 P05 P06 P07 P10 P11 P12 P13 M1 COM 3 4 1 2 6 5 [...]

  • Página 38

    R-22AT R-24AT 36 1 A B C D E F G H A B C D E F G H 23 45 6 12 34 56 Figure S-3. Printed Wiring Board BLACK RED 2.5A FUSE[...]

  • Página 39

    R-22AT R-24AT 37 PA R TS LIST Note: The parts marked " ∆ " may cause undue microwave exposure. The parts marked "*" are used in voltage more than 250V. REF. NO. PART NO. DESCRIPTION Q'TY CODE * * * ∆ * * * ELECTORIC PARTS 1- 1 FACCBA013WRKZ Power supply cord 1 AR 1- 2 QSOCLA024WRE0 Oven lamp socket 1 AH 1- 3 FW-QZA117WR[...]

  • Página 40

    R-22AT R-24AT 38 ∆ ∆ ∆ REF. NO. PART NO. DESCRIPTION Q'TY CODE F1 QFS-IA001KKZZ Fuse 2.5A 50V 1 AD I- 1 RH-IXA222DRZZ LSI 1 AU I- 2 RH-IXA298DRZZ EEPROM 1 AK Q2 VSKRA101M//-3 Transistor (KRA101M) 1 AB Q3 VHIKIA79L05-3 Transistor (KIA79L05P) 1 AE Q11 VS2SB953-PQ-4 Transistor (2SB953) 1 AG Q20 VSKRA101M//-3 Transistor (KRA101M) 1 AB Q40 VS[...]

  • Página 41

    R-22AT R-24AT 39 REF. NO. PART NO. DESCRIPTION Q'TY CODE 4-24 MHNG-A215WRM0 Upper oven hinge 1 AG 4-25 PCUSUA413WRP0 Cushion 1 AG 4-26 PCUSUA415WRP0 Cushion 1 AC 4-27 PDUC-A729WRF0 Air duct 1 AL 4-28 PDUC-A564WRW0 Mg exhaust duct 1 AP 4-29 PCUSUA414WRP0 Cushion 1 AD 4-30 LANGKA679WRPZ Fixing angle S 1 AD 4-31 HDECQA147WRM0 Corner cap right 1 A[...]

  • Página 42

    R-22AT R-24AT 40 HOW TO ORDER REPLACEMENT PARTS To have your order filled prompty and correctly, please furnish the following information. 1. MODEL NUMBER 2. REF. NO. 3. PART NO. 4. DESCRIPTION PACKING AND ACCESSORIES REF. NO. PART NO. DESCRIPTION Q'TY CODE 7-18 XWSS740-10000 Washer: 4mm x 1mm 1 AA 7-19 XFTS740P12000 Screw : 4mm x 12mm 1 7-20 [...]

  • Página 43

    R-22AT R-24AT 41 OVEN AND CABINET PARTS 1 A B C D E F G H A B C D E F G H 23 45 6 12 34 56 7-2 7-2 7-6 7-6 7-6 4-20 2-3 7-21 7-6 7-3 7-6 7-4 4-39 7-19 7-18 7-6 7-6 7-6 7-5 A 1 B A 2 2-4 6-7 2-4-2 2-4-1 2-2 4-12 1-22 2-5 6-6 1-13 4-3 4-24 4-37 4-11 4-21 4-36 4-35 2-1 4-14 1-17 4-31 4-19 4-8 4-9 1-15 1-15 4-9 4-5 4-6 1-14 1-14 1-16 4-7 4-10 4-4 7-6 4[...]

  • Página 44

    R-22AT R-24AT 42 '05SHARP CORP. (1S0.0e_E) CONTROL PANEL PARTS MISCELLANEOUS DOOR PARTS 1 A B C D E F G H A B C D E F G H 23 45 6 12 34 56 Actual wire harness may be different from illustration. 6-4 6-3 5 3-6 3-4 3-5 3-3 3-2-3 3-2 3-2-2 3-1 3-2-4 3-2-5 3-2-1 5-15 5-16 5-17 5-18 5-4 5-13 5-13 5-10 5-14 5-1 5-9 5-8 5-7 5-6 5-13 5-13 5-2 5-20 5-1[...]