Sharp R-480J service manual Unit, FigureS3.CPU

Page 34

R-480J

1

2

3

4

5

6

A

B

C

HELP

TURNTABLEDEFROST COOKOFF

SENSOR

COM8 COM7 COM6 COM5 COM4 COM3 COM2 COM1 SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 SEG13 SEG14 SEG15 SEG16 SEG17 SEG19 SEG18 SEG20 SEG21 SEG22 SEG23 SEG24 SEG25 SEG26 SEG27 SEG28 SEG29 SEG30 SEG31 SEG32 SEG33 SEG34 SEG35 SEG36 SEG37 SEG38 SEG39 SEG40 COM9 COM10 COM11 COM12 COM13 COM14 COM15 COM16

COM8

COM15 SEG39

SEG34

COM5

COM0

109 108

SEG33

SEG32

SEG31

SEG30

SEG29

SEG28

SEG27

SEG26

SEG25

SEG24

SEG23

SEG22

SEG21

SEG20

SEG19

SEG18

SEG17

SEG16

SEG15

SEG14

SEG13

SEG12

SEG11

SEG10

SEG9

SEG8

SEG7

SEG6

SEG5

SEG4

SEG3

SEG2

SEG1

SEG0

COM7

COM6

1 144

SEG34 SEG35 SEG36 SEG37 SEG38 SEG39 SEG40 SEG41 SEG42 SEG43 SEG44 SEG45 SEG46 SEG47 SEG48 SEG49 SEG50 SEG51 SEG52 SEG53 SEG54 SEG55 SEG56 SEG57 SEG58 SEG59 SEG60 SEG61 SEG62 SEG63 SEG64 SEG65

IC-1

COM5 COM4 COM3 COM2 COM1 COM0 VL1 VL2 VL3 VL4 VL5 C3 C2 C1 VLIN VSS(NC) NC VSS P27 P26 P25 P24 P23 P22 P21 P20 P47 P46 P45 P44 P43 CNTR0

SEG66

P41

SEG67

INT0

COM15

P07

COM14

73 72

 

COM13

 

COM12

 

COM11

 

COM10

 

COM9

 

COM8

 

AIN0

 

AIN1

 

AIN2

 

AIN3

 

NC

 

XIN

 

NC

 

VSS

 

XOUT

 

OSCSEL

 

VCC

 

NC

 

XCIN

 

XCOUT

 

NC

 

RESET

 

AIN4

 

AIN5

 

AIN6

 

AIN7

 

P14

 

P15

 

P16

 

P17

 

P00

 

P01

 

P02

 

P03

 

P04

 

P05

P06

37

 

36

CF1 4MHz

6270KX R79-

P17

P16

P15

P14

AIN7

R68

R69

R70

R71

R72

R79

 

 

 

 

R78

 

 

 

 

R77

 

 

 

 

R76

 

 

 

 

AIN6

15K6X

R73

R73

 

R68-

A

B

C

D

VL4

VL3

VL2

7K.4

7K.4

7K.4

R15

R16

R17

C15-C18 0.1uF/50Vx4 C15

C16

C17

 

 

AIN3

 

(J16)

AIN2

 

 

 

(J14)

AIN1

 

 

 

(J12)

 

 

AIN0

 

(J10)

 

01uF/50V.0

VL1

 

7K.4

7K.4

R18

R19

C18

 

7K.4

 

(J17)

 

7K.4

 

(J15)

 

7K.4

 

(J13)

 

7K.4

 

(J11)

 

 

D90 MA152WA

 

 

 

 

 

C92

0.01uF 50V

C93

0.01uF/50V

 

 

15K

 

 

 

 

 

R95

AIN5

AIN4

R97

15K

 

 

 

R94

4.7K

 

 

 

01uF/50V.0

 

C40

R41

15K

 

7K.4

R74

6330PF/50VX C65-

C60

P00

R75

 

 

 

 

 

R74

 

 

 

 

 

C65

 

 

 

 

 

 

C64

 

 

 

 

 

 

C63

 

 

 

 

 

 

C62

 

 

 

 

 

 

C61

 

 

 

 

 

 

C60

 

 

 

 

 

 

 

 

G9

G10

G11

G12

G13

15K

G8

5

0

 

MORE

 

 

 

 

G14CN-G

D

Circuit

E

F

C14

15K

2SA1037AK

R11

 

Q10

 

1K

3B.UDZ4

R10

ZD10

Q11 DTA143EAK

01uF/50V.0

 

C13

 

15K

 

R12

50V

 

1uF.0

 

C12

 

 

 

1uF/50V.0

 

 

 

 

 

 

 

C91

 

 

 

 

 

 

5

IC-2 BA4558

4

 

 

4KF.37

P23 P24

 

6

3

 

 

 

 

360KF

R102

 

7

2

R93

 

75KF

 

8

1

 

R101

 

 

 

 

 

 

P22

 

 

 

 

 

 

150KF

 

 

 

 

R92

1.8KF

RV

P21

 

 

 

 

300K

 

 

 

 

R99

 

 

 

 

 

 

 

57KD.3

 

 

 

 

 

620K

P20

R96

3.32KD

1uF/50V.0

 

 

R98

 

 

 

 

 

 

R91

C90

 

 

 

 

 

 

 

 

 

 

 

R90

330 1W

 

 

 

 

 

 

R40

P06 P05 P04 P03 P02 P01

R67

 

 

 

 

 

 

 

15K

G7

4

9

EXPRESS DEFROST

STOP CLEAR

 

R66

 

 

 

15K

G6

3

8

CLOCK

 

HELP

QUICK& EASY

R65

 

15K

G5

2

7

TIMER

 

POWER LEVEL

RICE/ PASTA

R64

 

15K

 

 

 

COOK

 

 

 

R63

 

 

 

 

 

 

G4

1

6

INSTANT

START

LESS

 

 

 

15K

G3

 

EXPRESS COOK

 

 

VEGETARIAN MEALS

 

R62

 

 

 

 

 

 

 

 

 

15K

G2

EASY DEFROST

EXPRESS MEAL

 

 

SENSOR REHEAT

 

R61

 

 

 

 

 

 

 

UNIT

Unit

E

FigureS3.CPU.

 

 

F

G

 

 

V.01

LD12

 

 

 

 

 

C11

LD11

 

 

47uF/16V

C-CN

 

+ -

LD10

 

C10

C-2

C-4

C-3

C-10

 

P45

0.1uF

Q30

 

Q20 DTA143EAK C20

 

 

50V

 

LD13

 

 

 

LD14

 

 

 

LD15

 

 

C-9

C-1

C-6

 

CNTR0

P44

Q21

DTA143EAK

C-5

DTA123JKA

MA152WA

C-7

D20

 

 

 

 

 

 

 

 

C-12

 

 

 

 

 

C-8

 

C-11

 

F-1

 

F-2

 

 

 

 

 

 

 

 

P07

CN-F

F-3

15K

G1

LOWFAT MEALS

DESSERTS

VEGETABLES

R60

 

: IF NOT SPECIFIED 1/10W ±5%

KEY

G

H

 

 

 

 

 

 

 

 

 

 

 

 

 

GND

INT

VC

LED

VR

VA

OL,TTM,FM

BUZZER

MICRO

NC

DOOR NC

SENSOR

 

 

 

 

 

 

 

 

 

 

 

 

AH

NOTE

H

1

2

3

4

5

6

32

Image 34
Contents Table of Contents Microwave Oven Model R-480J480J 480J Sharp Corporation OSAKA, JapanMicrowave Oven General Important InformationDescription Product SpecificationsGeneral Information This Appliance Must be EarthedAppearance View Touch Control PanelMicrowave Cooking Condition Operation SequenceOFF Condition Variable CookingCooking Sequence Power Output ReductionSensor Instant Reheat Function of Important Components Remember to Check 3D Troubleshooting GuideServicing Remember to Check 4RTest Procedure Possible Cause Defective Parts ProblemProcedure Component Test Letter Magnetron Test Test ProceduresMicrowave Output Power 1 litre water load High Voltage Rectifier Assembly Test Test Procedures Letter Component TestPower Transformer Test High Voltage Capacitor TestNoise Filter Test Carry OUT 3D Checks Procedure Component Test LetterSwitch Test Thermal CUT-OUT TestBlown Fuse F10A Carry OUT 3D Checks Touch Control Panel Assembly TestHigh Voltage Fuse Test KEY Unit Test Relay TestAH Sensor Test Carry OUT 3D Checks Steps Occurrence Cause or CorrectionOmif Checking the initial sensor cooking conditionChecking Control Unit Test Procedures LetterTesting Method for AH Sensor AND/OR Control Unit Sensor Dummy Resistor CircuitPower Source Circuit Reset CircuitIndicator Circuit Synchronizing Signal CircuitLSI Signal similar to P17 Pin No Signal DescriptionSignal coming from touch key Power source voltage GND0VCommon data signal COM6 Common data signal COM8Common data signal COM7 Common data signal COM5Absolute Humidity Sensor Circuit Structure of Absolute Humidity SensorShapes of Electronic Components Other PrecautionsTouch Control Panel Servicing Servicing of Touch Control PanelPower Transformer Removal Component Replacement and Adjustment ProcedureOuter Case Removal Magnetron Removal Positive Lock Connector NO-CASE Type RemovalHOW to RE-INSTALL the Turntable Motor Cover Turntable Motor RemovalInstallation Control Panel Assembly RemovalCPU Unit and Power Unit Oven Lamp and Lamp Socket RemovalRear View Power Supply Cord ReplacementAfter adjustment, check the following Side ViewRemoval Door ReplacementRE-INSTALL View back side of door frameInstallation After any service, make sure of the followingSealer Film Requirement Preparation for TestingMicrowave Measurement Holaday HI Simpson 380MFigure O-1. Oven Schematic-OFF Condition Figure S-1. Pictorial Diagram High Voltage ComponentsFigure S-2. Power unitl Circuit Unit FigureS3.CPUCN a CN D D10 CN CZD1 SP1 VRB RY2 RY1 RY3 TTMParts List SCREWS, Nuts and Washers Packing and AccessoriesMiscellaneous Not replaceable items84-21 Control Panel Parts Door Parts Miscellaneous Copyright 2004 by Sharp Corporation ALL Rights Reserved

R-480J specifications

The Sharp R-480J is a notable microwave oven that combines advanced technology with practical design, catering to both everyday cooking needs and more complex culinary tasks. This model is designed for consumers seeking reliability and efficiency in their kitchen appliances.

One of the standout features of the Sharp R-480J is its powerful 900-watt output. This high wattage allows for faster cooking times, making meal preparation a breeze. The microwave also offers multiple power levels, which provides the user with the flexibility to cook a variety of dishes. Whether you are reheating leftovers, defrosting meats, or cooking fresh vegetables, the R-480J delivers consistent and thorough results.

The microwave is equipped with a spacious interior, accommodating larger dishes with ease. Its turntable design ensures even cooking by allowing food to rotate during the cooking process. This feature minimizes cold spots in the food, ensuring that meals are heated uniformly.

User-friendliness is a key aspect of the Sharp R-480J. The appliance comes with an intuitive control panel featuring pre-programmed settings for common food items such as popcorn, pizza, and dinner plates, making it easy for users to select the right cooking time and power level with just a few button presses. Additionally, the digital display shows cooking times and power levels clearly, enhancing the overall cooking experience.

The R-480J also incorporates advanced sensor cooking technology. This innovative feature detects humidity levels emitted by food and adjusts cooking time accordingly. This means users can achieve perfect results without constantly monitoring the microwave, allowing for greater convenience and efficiency in daily cooking.

Moreover, the microwave's sleek and modern design fits well into various kitchen aesthetics. Its easy-to-clean surfaces minimize maintenance efforts, while the compact build allows it to be placed in smaller kitchens without taking up too much space.

In conclusion, the Sharp R-480J microwave oven stands out for its powerful performance, user-friendly features, and practical design. Its combination of high wattage, multiple power levels, and sensor cooking technology makes it a versatile appliance for any kitchen. Whether tackling daily meals or experimenting with new recipes, the R-480J is equipped to meet diverse cooking needs with ease and efficiency.