Sharp R-530EK service manual LSIIXA098DR

Page 24

R - 5 3 0 E K

R - 530EW

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

COM2

OUT

Common data signal : COM14.

 

 

 

 

Connected to LCD signal COM14.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

COM1

OUT

Common data signal : COM15.

 

 

 

 

Connected to LCD signal COM15.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6

COM0

OUT

Common data signal : COM16.

 

 

 

 

Connected to LCD signal COM16.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7-10

VL1-VL4

IN

Power source voltage input terminal.

 

 

 

 

Standard voltage for LCD.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

11

VL5

IN

Power source voltage input terminal.

 

 

 

 

Standard voltage for LCD. Connected to GND.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

12-14

C3-C1

IN

Terminal not used.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

15

VLIN

IN

Terminal not used.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

16

VREG

OUT

Terminal not used.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

17

NC

_

Terminal not used.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

18

VSS

IN

Power source voltage : -5.0V.

 

 

 

 

The power source voltage to the LSI is input to VSS terminal. Connected to VC.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

19-21

P27-P25

OUT

Terminal not used.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

22-26

P24-P20

IN

Used for initial balancing of the bridge circuit (absolute humidity sensor).

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

27

P47

IN

To input signal which communicates the door open/close information to LSI.

 

 

 

 

Door close "H" level signal (0V). Door open "L" level signal (-5V).

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

28

P46

OUT

Terminal not used.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

29

P45

OUT

Oven lamp, fan motor and turntable motor driving signal.

 

 

 

 

To turn on and off shut off relay (RY1). The

 

 

 

16.7 msec.

 

 

 

 

 

 

 

H : GND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

square waveform voltage is delivered to the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RY1 driving circuit and RY2 control circuit.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

L : -5V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

During cooking

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

30

P44

OUT

Magnetron high-voltage circuit driving signal.

 

To turn on and off the cook relay (RY2). The

OFF

 

H : GND

signals holds "L" level during microwave cook-

100

 

 

 

ing and "H" level while not cooking. In other

 

 

PERCENT

ON

L : -5V

cooking modes (variable cooking) the signal

 

 

OFF

 

OFF

turns to "H" level and "L" level in repetition

70

24 sec.

H : GND

according to the power level.

 

PERCENT

ON

8 sec.

 

 

L : -5V

 

 

 

 

 

 

 

(ON and OFF times for other power level.)

31

P43

OUT

Terminal not used.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

32

CNTR0

OUT Signal to sound buzzer (2.0 kHz).

 

 

0.1 sec.

 

 

 

A: key touch sound.

 

 

 

 

 

 

 

 

H : GND

 

 

 

A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

B: Completion sound.

 

 

 

 

 

 

 

 

L : -5V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2.0 sec.

 

 

 

 

 

 

 

 

 

 

 

 

H : GND

 

 

 

 

B

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

L : -5V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

33

P41

OUT

Terminal not used.

 

 

 

 

 

 

 

 

 

22

Image 24
Contents Table of Contents Models R 5 3 0 E K R-530EWBefore Servicing When the testing is completed Dont Touch Before ServicingMicrowave Measurement Procedure RequirementsLeakage test Sharp PLAZA, Mahwah Microwave Oven530EK/ R-530EW ForewordSpecification General InformationDescription Grounding InstructionsOven Diagram Touch Control PanelOperation Description of Operating SequenceMicrowave Cooking SequenceFigure O-1. Oven Schematic-Off Condition Description and Function of Components Troubleshooting Guide CK = Check / RE = Replace Test Procedures Procedure Letter Component Test Magnetron Assembly TestMicrowave Output Power Power Transformer TestProcedure Letter Component Test Cavity Temperature Fuse TestMagnetron Temperature Fuse Test High Voltage Rectifier TestSecondary Interlock Switch Test Door Sensing SwitchMonitor Switch Test Primary Interlock System TestTouch Control Panel Assembly Test Before testingBlown Monitor Fuse Test KEY Unit Test Relay Test Compu Defrost TestProcedure Component Test Letter Foil Pattern on the Printed Wiring Board TestTesting Method for AH Sensor AND/OR Control Unit AH Sensor TestChecking the initial sensor cooking condition Water load cooking testChecking Control Unit Sensor Dummy Resistor CircuitTouch Control Panel Assembly LSIIXA098DR Pin No Signal Description Signal synchronized with commercial power source frequencyKey strobe signal Signal coming from touch keyPower source voltage GND0V Internal clock oscillation frequency control input settingCommon data signal COM8 Common data signal COM7Common data signal COM9 Common data signal COM10Absolute Humidity Sensor Circuit Structure of Absolute Humidity SensorTouch Control Panel Servicing KRC243MComponent Replacement and Adjustment Procedure Outer Case RemovalPower Transformer Removal ReinstallationHigh Voltage Rectifier and High Voltage Capacitor Removal Magnetron RemovalPositive Lock Connector NO-CASE Type Removal Control Panel Assembly RemovalOven Lamp and Lamp Socket Removal Turntable Motor RemovalAH Sensor Replacement InstallationCooling FAN Motor Removal RemovalDoor Replacement After adjustment, check the followingRemoval Reinstallation After any service, make sure of the followingInstallation Sealer FilmFigure S-1. Pictorial Diagram High Voltage ComponentsFigure S-2. Power Unit Circuit Circuit OFF CookZD1 SP1 VRBRY2 RY1 RY3 TTMParts List Electric PartsCabinet Parts Control Panel PartsHOW to Order Replacement Parts Door PartsMiscellaneous SCREWS,NUTS and WashersOven and Cabinet Parts Control Panel Parts Door Parts Miscellaneous Packing and Accessories Copyright 2001 by Sharp Corporation ALL Rights Reserved

R-530EK specifications

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