Sharp R-530EK manuale d’uso

43 R-53 0E K R-530 EW In the interest of user-safety the oven should be restored to its original condition and only parts identical to those specified should be used. WARNING TO SERVICE PERSONNEL: Microwave ovens con- tain circuitry capable of producing very high voltage and current. Contact with the following parts may result in a severe, possibly[...]

44 R-53 0EK R-530 EW PRECAUTIONS T O BE OBSER VED BEFORE AND DURING SER VICING T O A VOID POSSIBLE EXPOSURE T O EXCESSIVE MICROW A VE ENERGY (a) Do not operate or allow the oven to be operated with the door open. (b) Make the following safety checks on all ovens to be serviced before activating the magnetron or other microwave source, and make repa[...]

1 R-53 0E K R-530 EW W ARNING T O SER VICE PERSONNEL Microwave ovens contain circuitry capable of pro- ducing very high voltage and current, contact with following parts may result in a severe, possibly fatal, electrical shock. (Example) High Voltage Capacitor, High Voltage Power Trans- former, Magnetron, High Voltage Rectifier Assem- bly, High Vol[...]

2 R-53 0EK R-530 EW MICROW A VE MEASUREMENT PROCEDURE A. Requirements: 1) Microwave leakage limit (Power density limit): The power density of microwave radiation emitted by a microwave oven should not exceed 1mW/cm 2 at any point 5cm or more from the external surface of the oven, measured prior to acquisition by a purchaser, and thereafter (through[...]

3 R-53 0E K R-530 EW SHARP ELECTRONICS CORPORATION SHARP PLAZA, MAHWAH, NEW JERSEY 07430-2135 SERVICE MANUAL MICROWAVE OVEN R-530EK/ R-530EW FOREWORD This Manual has been prepared to provide Sharp Electronics Corp. Service Personnel with Operation and Service Information for the SHARP MICROWAVE OVEN, R-530EK, R-530EW. It is recommended that service[...]

4 R-53 0EK R-530 EW ITEM DESCRIPTION Power Requirements 120 Volts / 13.8 Amperes 60 Hertz Single phase, 3 wire grounded Power Output 1200 watts (IEC TEST PROCEDURE) Operating frequency of 2450MHz Case Dimensions Width 24" Height 13-3/8" Depth 19-1/8" Cooking Cavity Dimensions Width 17-3/8" Height 10-1/2" 2.0 Cubic Feet Dept[...]

5 R-53 0E K R-530 EW Where a two-pronged wall-receptacle is encountered, it is the personal responsibility and obligation of the customer to contact 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 s[...]

6 R-53 0EK R-530 EW OPERA TION DESCRIPTION OF OPERATING SEQUENCE The following is a description of component functions during oven operation. OFF CONDITION Closing the door activates the door sensing switch and secondary interlock switch. (In this condition, the monitor switch contacts are opened.) When oven is plugged in, 120 volts A.C. is supplie[...]

7 R-53 0E K R-530 EW The time of supplementary cooking is determined by experi- ment with each food category and inputted into the LSI. An example of how sensor works: (POTATOES) 1. Potatoes at room temperature. Vapor is emitted very slowly. 2. Heat Potatoes. Moisture and humidity is emitted rapidly. You can smell the aroma as it cooks. 3. Sensor d[...]

8 R-53 0EK R-530 EW Figure O-1. Oven Schematic-Off Condition SCHEMATIC NOTE: CONDITION OF OVEN 1. DOOR CLOSED. 2. CLOCK APPEARS ON DISPLAY. SCHEMATIC NOTE: CONDITION OF OVEN 1. DOOR CLOSED. 2. COOKING TIME PROGRAMMED. 3. VARIABLE COOKING CONTROL "P-HI/ 100 PERCENT". 4. "START" PAD TOUCHED. Figure O-2. Oven Schematic-Cooking Cond[...]

9 R-53 0E K R-530 EW DESCRIPTION AND FUNCTION OF COMPONENTS DOOR OPEN MECHANISM The door is opened by pushing the open button on the control panel, refer to the Figure D-1. When the open button is pushed, the open button pushes up the switch lever, and then the switch lever pushes up the latch head. The latch heads are moved upward and released fro[...]

10 R-53 0EK R-530 EW TROUBLESHOOTING GUIDE Never touch any part in the circuit with your hand or an uninsulated tool while the power supply is connected. When troubleshooting the microwave oven, it is helpful to follow the Sequence of Operation in performing the checks. Many of the possible causes of trouble will require that a specific test be per[...]

11 R-53 0E K R-530 EW CK = Check / RE = Replace SHORT IN POWER CORD SHORT OR OPENED WIRING MAGNETRON POWER TRANSFORMER H.V. RECTIFIER ASSEMBLY HIGH VOLTAGE CAPACITOR CAVITY TEMPERATURE FUSE MAGNETRON TEMPERATURE FUSE PRIMARY INTERLOCK SYSTEM SECONDARY INTERLOCK SWITCH MONITOR SWITCH MONITOR FUSE OVEN LAMP OR SOCKET COOLING FAN MOTOR TURNTABLE MOTOR[...]

12 R-53 0EK R-530 EW B POWER TRANSFORMER 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. Disconnect the primary input terminals and measure the resistance of the transformer with an ohmmeter. Check for continuity of the coils with an ohmmeter. On the R[...]

13 R-53 0E K R-530 EW TEST PROCEDURES PROCEDURE LETTER COMPONENT 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. If the capacitor is open, no high voltage will be available to the magnetron. Disconnect input leads and check for short or open between th[...]

14 R-53 0EK R-530 EW TEST PROCEDURES PROCEDURE LETTER COMPONENT 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 secondary interlock switch and the primary interlock relay are operating properly, according[...]

15 R-53 0E K R-530 EW H BLOWN MONITOR FUSE TEST TEST PROCEDURES PROCEDURE LETTER COMPONENT 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. If the monitor fuse is blown when the door is opened, check the primary interlock relay, secondary interlock swit[...]

16 R-53 0EK R-530 EW 4) Reconnect the power supply cord after the outer case is installed. 5) Run the oven and check all 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, som[...]

17 R-53 0E K R-530 EW TEST PROCEDURES PROCEDURE LETTER COMPONENT TEST the above method may be used (after clearing the control unit) to determine if the control unit or key pad is at fault. 5. Reconnect all leads removed from components during testing. 6. Re-install the outer case (cabinet). 7. Reconnect the power supply cord after the outer case i[...]

18 R-53 0EK R-530 EW To protect the electronic circuits, this model is provided with a fine foil pattern added to the primary on the PWB, this foil pattern acts as a fuse. 1. Foil pattern check and repairs. 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) Fo[...]

19 R-53 0E K R-530 EW TEST PROCEDURES PROCEDURE LETTER COMPONENT TEST 10) Discharge 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. N AH SENSOR TEST Checkin[...]

20 R-53 0EK R-530 EW TEST PROCEDURES PROCEDURE LETTER COMPONENT TEST 9-2. Place the container on the center of tray in the oven cavity. 9-3. Close the door. 9-4. Touch the Timer/Clock pad once, the Power Level pad twice, the Start pad once and the number pad 1 once. 9-5. The control panel is in automatic Sensor operation. 9-6. And then the oven wil[...]

21 R-53 0E K R-530 EW TOUCH CONTROL P ANEL ASSEMBL Y OUTLINE OF TOUCH CONTROL PANEL 4) Relay Circuit A circuit to drive the magnetron, fan motor, turntable motor and light the oven lamp. 5) Buzzer Circuit The buzzer is responsive to signals from the LSI to emit audible sounds (key touch sound and completion sound). 6) Synchronizing Signal Circuit T[...]

22 R-53 0EK R-530 EW LSI(IXA098DR) The I/O signal of the LSI(IXA098DR) is detailed in the following table. Pin No. Signal I/O Description 1 COM5 OUT Common data signal : COM11. Connected to LCD signal COM11. 2 COM4 OUT Common data signal : COM12. Connected to LCD signal COM12. 3 COM3 OUT Common data signal : COM13. Connected to LCD signal COM13. 4 [...]

23 R-53 0E K R-530 EW 34 INT0 IN Signal synchronized with commercial power source frequency. This is the basic timing for time processing of LSI. 35 P07 OUT Key strobe signal. Signal applied to touch-key section. A pulse signal is input to AIN7, P14, P15, P16 and P17 terminal while one of G1 line keys on key matrix is touched. 36 P06 OUT Key strobe[...]

24 R-53 0EK R-530 EW 52 NC _ Terminal not used. 53 XCOUT OUT Terminal not used. 54 XCIN IN Connected to VC. 55 NC _ Terminal not used. 56 VCC IN Power source voltage: GND(0V). The power source voltage to drive LSI is input to VCC terminal. 57 OSCSEL IN Connected to VC(-5V). 58 XOUT OUT Internal clock oscillation output. Output to control oscillatio[...]

25 R-53 0E K R-530 EW ABSOLUTE HUMIDITY SENSOR CIRCUIT (1) Structure of Absolute Humidity Sensor The absolute humidity sensor includes two thermistors as shown in the illustration. One thermistor is housed in the closed vessel filled with dry air while another in the open vessel. Each sensor is provided with the protective cover made of metal mesh [...]

26 R-53 0EK R-530 EW 1. Precautions for Handling Electronic Components This unit uses CMOS LSI in the integral part of the circuits. When handling these parts, the following precautions should be strictly followed. CMOS LSI have extremely high impedance at its input and output terminals. For this reason, it is easily influenced by the surrounding h[...]

27 R-53 0E K R-530 EW To remove the outer case, proceed as follows. 1. Disconnect the power supply cord. 2. Open the oven door and block it open. 3. Remove the two (2) screws from the lower portion of the rear cabinet using a T20H Torx type or GTXH20-100 screw driver. 4. Remove the remaining two (2) screws from rear and four (4) screws along the ri[...]

28 R-53 0EK R-530 EW POWER TRANSFORMER REMOVAL Reinstallation 1. Rest transformer on the bottom plate with its primary terminals toward the oven face plate. 2. Secure transformer with four screws to bottom plate. 3. Re-connect wire leads (primary and high voltage) to power transformer and filament leads of transformer to magnetron and high voltage [...]

29 R-53 0E K R-530 EW CONTROL PANEL ASSEMBLY REMOVAL POSITIVE LOCK ® CONNECTOR (NO-CASE TYPE) REMOVAL Figure C-2. Positive lock ® connector 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. Push the lever of positive lock ® connector. 5. Pull down on the p[...]

30 R-53 0EK R-530 EW 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 fro[...]

31 R-53 0E K R-530 EW DOOR REPLACEMENT 1. Disconnect the power supply cord, and then remove outer case. 2. Open the door and block it open. 3. Discharge high voltage capacitor. If the door sensing switch, secondary interlock switch and monitor switch do not operate properly due to a misadjustment, the following adjustment should be made. 4. Loosen [...]

32 R-53 0EK R-530 EW 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 moisture, light or sensing of gentle[...]

33 R-53 0E K R-530 EW 6 45 1 2 3 6 45 1 2 3 A B C D E F G H A B C D E F G H Figure S-1. Pictorial Diagram HIGH VOLTAGE CAPACITOR HIGH VOLTAGE WIRE A H.V. RECTIFIER POWER SUPPLY CORD 120V 60Hz HIGH VOLTAGE COMPONENTS OVEN LAMP AND SOCKET MAGNETRON COM. MONITOR SWITCH COM. N.O. N.C. DOOR SENSING SWITCH SECONDARY INTERLOCK SWITCH TURNTABLE MOTOR NOTE:[...]

34 R-53 0EK R-530 EW 6 45 1 2 3 6 45 1 2 3 A B C D E F G H A B C D E F G H Figure S-2. Power Unit Circuit + – + – + – A 1 CN-A R4 27 D5 T1 1 3 4 D1 D3 D2 D4 6 ab c d VRS1 (J1) D7 D8 1SS270A 1SS270A 10G471K C1 0.1 µ /50v C3 0.1 µ /50v ZD1 HZ16-1 C5 10 µ /35v C2 1000 µ /35v C4 10 µ /35v R1 2.4k 1SS270A 1SS270A D1-D4 11ES1 D6 R5 4.7k R2 680[...]

35 R-53 0E K R-530 EW Figure S-3 LSI Unit Circuit 6 45 1 2 3 6 45 1 2 3 A B C D E F G H A B C D E F G H C-10 C-9 C-1 C-8 C-12 F-1 F-2 F-3 G 1 G 2 G 3 G 4 G 5 G 6 G 7 G 8 G 9 G10 G11 G12 G13 G14 C-11 C-3 C-4 C-2 CN-C GND INT VC LED VR VA OVEN LAMP TURNTABLE MOTOR FAN MOTOR BUZZERR MICRO NC DOOR SENSING SWITCH NC AH SENSOR NOTE : IF NOT SPECIFIED 1/1[...]

36 R-53 0EK R-530 EW 6 45 1 2 3 6 45 1 2 3 A B C D E F G H A B C D E F G H Figure S-4. Printed Wiring Board of Power Unit WH - 1 SH - B SH - A 1 C3 C4 C5 R3 C2 F C1 10 D4 D2 D1 D3 (J1) D9 (D10) RY3 (CN - D) D8 ZD1 VRB DU R2 R1 R6 R5 SP1 3 E B D6 D5 Q2 R4 2 6 11 P S RY2 T1 AC VRS1 5 D7 OMIF DU 9 8 7 E Q1 B 4 E RY1 AC OL TTM FM B Q3 (CN - C) CN - C C[...]

37 R-53 0E K R-530 EW ∆ REF. NO. PART NO. § DESCRIPTION Q'TY CODE P ARTS LIST Note: The parts marked “ ∆ ” may cause undue microwave exposure. The parts marked “*” are used in voltage more than 250V. "§" MARK: PARTS DELIVERY SECTION. * * * ∆ * ELECTRIC PARTS 1- 1 RC-QZB018MRE0 M High voltage capacitor 1 AQ 1- 2 FH-DZB[...]

38 R-53 0EK R-530 EW ∆ ∆ ∆ ∆ * REF. NO. PART NO. § DESCRIPTION Q'TY CODE 4- 6 NFANPB006MRE0 M Fan blade 1 AC 4- 7 PDUC-B088MRF0 M Fan duct 1 AC 4- 8 ------------- M Oven cavity (Not a replaceable part) 1 -- 4- 9 PCOVPB085MRP0 M Waveguide cover 1 AV 4-10 PPACGB014MRF0 M Turntable motor packing 1 AA 4-11 PDUC-B106MRP0 M Sensor duct 1 AG[...]

39 R-53 0E K R-530 EW 6 45 1 2 3 6 45 1 2 3 A B C D E F G H A B C D E F G H OVEN AND CABINET PARTS 2-3 4-7 6-7 1-5 4-6 4-8 4-11 7-6 7-2 1-15 4-9 6-11 6-3 6-5 6-4 2-1 7-6 1-12 4-10 4-13 7-2 7-2 4-3 1-13 1-10 7-3 7-6 7-6 1-9 7-8 7-8 4-2 7-5 1-11 1-3 1-4 7-1 1-8 1-8 4-4 7-1 4-1 1-1 1-2 2-2 2-2 2-2 2-2 7-5 7-5 4-12 7-5 6-6 1-7 1-6 4-5 1-14 7-4 7-7 7-4 [...]

40 R-53 0EK R-530 EW 6 45 1 2 3 6 45 1 2 3 A B C D E F G H A B C D E F G H Actual wire harness may be different from illustration. 6-9 6-2 6-1 5-6 5-8 3-3-1 3-3-2 3-3- 4 3-3- 3 5-4 5-5 5-2 3-3 3-5 3-4 3-6 3-6 3-6 3-1 3-2 5-9 5-1 5-3 5-7 CONTROL PANEL PARTS MISCELLANEOUS DOOR PARTS[...]

41 R-53 0E K R-530 EW PACKING AND ACCESSORIES DOOR PROTECTION SHEET SPADP0221MRE0 PLASTIC BAG SSAKHB007MRE0 PACKING CASE SPAKCB309MRR3 (R-530EK) SPAKCB309MRR2 (R-530EW) TOP PAD ASSEMBLY FPADBB050MRE0 INTO THE OVEN CAVITY 6-5 TURNTABLE TRAY 6-4 TURNTABLE SUPPORT 6-8 OPERATION MANUAL TRAY PACK SPADPB042MRE0 BOTTOM PAD ASSEMBLY FPADBB051MRE0 TRAY HOLD[...]

42 R-53 0EK R-530 EW 2001 SHARP CORP. (3S2.530E) Printed in U.S.A COPYRIGHT © 2001 BY SHARP CORPORATION ALL RIGHTS RESERVED. No part of this publication may be reproduced, stored in retrieval systems, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission of the p[...]