Sharp R-580D Service Manual
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Sharp R-580D Service Manual

Sharp R-580D Service Manual

Microwave oven
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See also: User Manual
Dinner
Plate
Casserol
Soup
Rice
Vegetable s
Slow
Pasta
Cook
Help
Sensor Instant Reheat
1
Sensor Cook
2
3
Pizza
Rice
Pie
Meat
Express
Desserts
Easy
Defrost
Defrost
6
7
8
CAUTION, MICROWAVE RADIATION ............................................................................................................. 1
WARNING .......................................................................................................................................................... 1
PRODUCT SPECIFICATIONS ......................................................................................................................... 2
GENERAL INFORMATION ................................................................................................................................ 2
APPEARANCE VIEW ....................................................................................................................................... 3
OPERATION SEQUENCE ................................................................................................................................ 4
FUNCTION OF IMPORTANT COMPONENTS ................................................................................................. 6
SERVICING ...................................................................................................................................................... 7
TEST PROCEDURE ......................................................................................................................................... 9
TOUCH CONTROL PANEL ............................................................................................................................. 16
COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE ........................................................... 21
MICROWAVE MEASUREMENT .................................................................................................................... 27
WIRING DIAGRAM ......................................................................................................................................... 28
PICTORIAL DIAGRAM ................................................................................................................................... 29
POWER UNIT CIRCUIT .................................................................................................................................. 30
CPU UNIT CIRCUIT ........................................................................................................................................ 31
INDICATOR CIRCUIT ...................................................................................................................................... 32
PRINTED WIRING BOARD ............................................................................................................................. 33
PARTS LIST ................................................................................................................................................... 34
SERVICE MANUAL
4
5
Power
Timer
Level
Clock
9
0
STOP
Instant Cook
Clear
START

TABLE OF CONTENTS

SHARP CORPORATION
MICROWAVE OVEN
R-580D
MODEL
In interests of user-safety the oven should be restored to its
original condition and only parts identical to those specified
should be used.
R-580D
S9007R580DPJ/
Page

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Summary of Contents for Sharp R-580D

  • Page 1: Table Of Contents

    R-580D SERVICE MANUAL S9007R580DPJ/ MICROWAVE OVEN Dinner Plate Casserol Soup Rice Vegetable s Slow Pasta Cook Help Sensor Instant Reheat Sensor Cook Power Timer Pizza Rice Level Clock Meat Express Desserts Easy Defrost Defrost STOP Instant Cook Clear START R-580D...
  • Page 2 R-580D...

  • Page 3: Caution Microwave Radiation

    MICROWAVE OVEN R-580D APPEARANCE VIEW GENERAL IMPORTANT INFORMATION This Manual has been prepared to provide Sharp Corp. Service OPERATING SEQUENCE 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 FUNCTION OF IMPORTANT satisfactory customer service.

  • Page 4: Product Specifications

    R-580D PRODUCT SPECIFICATIONS ITEM DESCRIPTION Power Requirements 230 - 240 Volts 50 Hertz Single phase, 3 wire earthed Power Consumption 1.55kW Power Output 1000 watts nominal of RF microwave energy (IEC Test Procedure) Operating frequency 2450 MHz Case Dimensions Width 495 mm...

  • Page 5: Appearance View

    R-580D APPEARANCE VIEW Breakfast Linch on One Dish the Run Baked Dinners Popcorn Sensor Custom Potatoes Reheat More from your Microwave Help Sensor Cooking Super Compu Beverage Power Defrost Minute Defrost center Vegetables Main Frozen Kitchen Level PLus Entrees Foods...

  • Page 6: Operation Sequence

    1st. latch switch and Figure O-1 on page 28 stop switch must open their contacts first. 1. The display shows "SHARP MICRO-WAVE OVEN". After that the contacts (COM-NC) of the monitor 2. To set any programmes or set the clock, you must switch can be closed, and the contacts of the 2nd.
  • Page 7 R-580D An example of how sensor works: POWER OUTPUT REDUCTION 1. Potatoes at room temperature. Vapor is emitted very After 100% power cooking mode is carried out for more slowly. than 40 minutes, the power out-put is automatically re- duced to 70%.

  • Page 8: Function Of Important Components

    R-580D FUNCTION OF IMPORTANT COMPONENTS defect in the control unit, the thermal cut-out will open. DOOR OPEN MECHANISM Under normal operation, the oven thermal cut-out remains The door is opened by pulling the door, refer to the Figure closed. However, when abnormally high temperatures are D-1.

  • Page 9: Servicing

    Sharp recommend that wherever possible fault-finding is carried out with the supply disconnected. It may, in some cases, be necessary to connect the supply after the outer case has been removed, in this event carry out 3D checks and then disconnect the leads to the primary of the power transformer.
  • Page 10 R-580D CK = Check / RE = Replace TEST PROCEDURE A B C D E E E E G F H H I L M N O J K P RE CK CK RE CK CK CK CK CK POSSIBLE CAUSE...

  • Page 11: Test Procedure

    R-580D TEST PROCEDURES PROCEDURE COMPONENT TEST LETTER MAGNETRON TEST NEVER TOUCH ANY PART IN THE CIRCUIT WITH YOUR HAND OR AN INSULATED TOOL WHILE THE OVEN IS IN OPERATION. CARRY OUT 3D CHECK. Isolate the magnetron from high voltage circuit by removing all leads connected to filament terminal.
  • Page 12 R-580D TEST PROCEDURES PROCEDURE COMPONENT TEST LETTER Room temperature ....To = 21˚C Initial temperature ....T1 = 11 C Temperature after (42 + 2) = 44 sec..............T2 = 21 C Temperature difference Cold-Warm .............. T1 = 10 C Measured output power The equation is “P = 100 x T”...
  • Page 13 R-580D TEST PROCEDURES PROCEDURE COMPONENT TEST LETTER HIGH VOLTAGE CAPACITOR TEST CARRY OUT 3D CHECKS. A. Isolate the high voltage capacitor from the circuit. B. Continuity check must be carried out with measuring instrument which is set to the highest resistance range.
  • Page 14 R-580D TEST PROCEDURES PROCEDURE COMPONENT TEST LETTER If incorrect readings are obtained, replace the monitor resistor. CARRY OUT 4R CHECKS. MOTOR WINDING TEST CARRY OUT 3D CHECKS. Disconnect the leads from the motor. Using an ohmmeter, check the resistance between the two terminals as described in the table below.
  • Page 15 R-580D TEST PROCEDURES PROCEDURE COMPONENT TEST LETTER TOUCH CONTROL PANEL ASSEMBLY TEST The touch control panel consists of circuits including semiconductors such as LSI, ICs, etc. Therefore, unlike conventional microwave ovens, proper maintenance cannot be performed with only a voltmeter and ohmmeter. In this service manual, the touch control panel assembly is divided into two...
  • Page 16 R-580D TEST PROCEDURES PROCEDURE COMPONENT TEST LETTER RY1 and RY2 Relay Test These relays are operated by D.C. voltage. Check voltage at the relay coil with a D.C. voltmeter during the microwave cooking operation. DC. voltage indicated ....Defective relay.
  • Page 17 R-580D TEST PROCEDURES PROCEDURE COMPONENT TEST LETTER (8) If the sensor has not detected the vapour of the food, ERROR will appear and the oven will shut off. Water load cooking test Make sure the oven has been plugged in at least five minutes before checking sensor cook operation.

  • Page 18: Touch Control Panel

    R-580D TOUCH CONTROL PANEL ASSEMBLY OUTLINE OF TOUCH CONTROL PANEL The touch control section consists of the following units. In addition, the synchronizing signal is available in order to compose a basic standard time in the clock (1) Key Unit circuit.
  • Page 19 R-580D LSI(IXA069DR) The I/O signal of the LSI(IXA069DR) is detailed in the following table. Pin No. Signal Description AN10 Signal coming from touch key. When either G10 line on key matrix is touched, a corresponding signal out of P10 - P17 will be input into ANI0.
  • Page 20 R-580D Pin No. Signal Description Magnetron high-voltage circuit driving signal. H : GND To turn on and off the cook relay (RY2). The HIGH signals holds "L" level during microwave cook- L : -5V ing and "H" level while not cooking. In other...
  • Page 21 R-580D ABSOLUTE HUMIDITY SENSOR CIRCUIT With this voltage given, the switches SW1 to SW5 in (1) Structure of Absolute Humidity Sensor the LSI are turned on in such a way as to change the The absolute humidity sensor includes two thermistors resistance values in parallel with R98 ~ R102.
  • Page 22 R-580D TOUCH CONTROL PANEL SERVICING apart from the oven proper; in this case you must short 1. Precautions for Handling Electronic Components both ends of the door sensing switch (on PWB) of the This unit uses CMOS LSI in the integral part of the touch control panel with a jumper, which brings about circuits.

  • Page 23: Component Replacement And Adjustment Procedure

    Oven lamp, Magnetron, High voltage transformer To prevent an electric shock, take the following and Oven cavity. manners. 3) Sharp edge: 1. Before wiring, Bottom plate, Oven cavity, Waveguide flange, 1) Disconnect the power supply. Angles, Guides and other metallic plate.
  • Page 24 R-580D 10.Remove the two (2) screws holding the waveguide three (3) screws. flange of the oven cavity to the base plate. 5. Hold the base plate to the oven cavity front plate with 11.Remove the three (3) screws holding the base plate to three (3) screws.
  • Page 25 R-580D 4. Reconnect the wire leads to the magnetron and thermal Reinstallation cut-out (MG). Refer to "PICTORIAL DIAGRAM". 1. Re-install the magnetron thermal cut-out angle with 5. Re-install outer case and check that the oven is thermal cut-out (MG) to magnetron with the two (2) screws.
  • Page 26 9. After replacement use the one (1) screw to fit the 4. Where the corners have been snipped off bend corner turntable motor cover. areas flat. CAUTION: NO SHARP EDGES MUST BE EVIDENT 5. Disconnect wire leads from turntable motor. AFTER REMOVAL OF THE TURNTABLE (See "Positive lock connector removal") MOTOR COVER.
  • Page 27 R-580D door toward the oven face. Both results (play in the door) should be less than 0.5mm. Latch Hook Door 2. The contacts of 1st. latch switch and stop switch open 2nd. Latch Switch within 1.6mm gap between right side of cavity face Latch plate and door when door is open.
  • Page 28 R-580D SEALER FILM Sealer film Backing film Installation 1. Put the adhesive tape on the backing film of the sealer film as shown in Fig. C-8. 2. Tear the backing film by pulling the adhesive tape. Adhesive tape 3. Put the pasted side of the sealer film on the door panel.

  • Page 29: Microwave Measurement

    R-580D MICROWAVE MEASUREMENT After adjustment of door latch switches, monitor switch Recommended instruments are: and door are completed individually or collectively, the NARDA 8100 following leakage test must be performed with a survey NARDA 8200 instrument and it must be confirmed that the result meets...

  • Page 30: Wiring Diagram

    R-580D SCHEMATIC NOTE: CONDITION OF OVEN 1. DOOR CLOSED NOTE: " " indicates components with potentials above 250V. 2. CLOCK APPEARS ON DISPLAY THERMAL NOISE FILTER CUT-OUT 2ND. LATCH 125˚C (OVEN) SWITCH FUSE M10A N.O. COM. N.O. COM. RY-1 RY-2 H.

  • Page 31: Pictorial Diagram

    R-580D EARTH LIVE NEUTRAL CORD SUPPLY POWER...

  • Page 32: Power Unit Circuit

    R-580D CN-A CN-C S1NB10 GND1 GND2 – – 2SB1238 R2 680 1/2w BA4558 BUZZER OVEN LAMP TURNTABLE MOTOR FAN MOTOR 1.8kF 360kF MICRO OVEN LAMP TURNTABLE MOTOR FAN MOTOR MICRO STOP N.C. SWITCH STOP SWITCH CN-B CN-F Figure S-2. Power unit Circuit...

  • Page 33: Cpu Unit Circuit

    R-580D SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 SEG19 TEST SEG20 OSC1 OSC2 AVSS AN11 AN10 SEG35 /50v 0.01 /25v 0.01 330pF/50v 330pF/50v 330pF/50v 330pF/50v (J16) 4.7k (J17) (J14) 4.7k (J15) 270k 620k 270k...

  • Page 34: Indicator Circuit

    R-580D HELP COOK TURNTABLE DEFROST SENSOR SEG9 SEG35 SEG8 SEG36 SEG7 SEG37 SEG6 SEG38 SEG5 SEG39 SEG4 COM16 SEG3 COM15 /50v SEG2 COM14 SEG1 COM13 C129 SEG0 COM12 COM7 COM11 COM6 COM10 COM5 COM9 COM4 COM8 COM3 COM2 COM1 COM0...

  • Page 35: Printed Wiring Board

    R-580D CN - H (D7) Figure S-5. Printed Wiring Board...

  • Page 36: Parts List

    R-580D PARTS 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 ELECTRIC PARTS 1- 1 QACCAA047WRE0 Power supply cord...
  • Page 37 R-580D 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 4-11 LANG-A081WRWZ Separate angle B 4-12 FOVN-A466WRTZ Oven cavity 4-13...
  • Page 38 R-580D 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 7-17 XOTSD40P12000 Screw : 4mm x 12mm HOW TO ORDER REPLACEMENT PARTS To have your order filled prompty and correctly, please furnish the following information.
  • Page 39 R-580D OVEN AND CABINET PARTS 7-13 4-23 1-15 7-14 4-26 4-17 7-13 4-30 4-22 1-13 4-12 4-24 7-14 4-28 4-29 4-27 4-17 4-18 6-10 7-13 4-11 4-19 7-16 4-14 7-11 4-15 1-10 7-10 4-16 1-11 4-10 7-12 7-16 4-20 1-12...
  • Page 40 R-580D 5-13 DOOR PARTS 5-13 5-20 5-10 5-11 5-12 5-14 5-17 4-13 5-13 5-11 5-12 5-12 5-21 5-12 5-19 5-21 5-18 5-15 5-16 5-3-1 MISCELLANEOUS Actual wire harness may be different from illustration. 2000SHARP CORP. (9S0.730E) Printed in Australia...

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