Sharp R-1481, R-1480, R-1482 service manual Dip, Bfb

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R-1480

R-1481

R-1482

1

2

 

 

 

 

 

 

 

 

 

3

 

 

 

 

 

 

 

 

 

 

 

 

 

4

 

 

 

 

5

6

A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

B

 

DIP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

33

 

 

C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

20 21 22 23 24 25 26

15 16 17 18 19

14

 

 

 

13

10 11 12

2 3 4 5 6 7 8 9

 

 

 

 

 

 

 

 

 

 

 

 

,BFB

 

 

 

 

 

 

 

 

27

 

 

 

 

 

 

 

R10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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QKITPB027MRE0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

29

 

 

 

 

 

 

 

(J13)

 

 

 

 

 

 

 

 

 

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R91 R92

 

 

 

 

 

 

 

 

 

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(J10)

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(IC2)

 

 

 

 

 

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31

 

 

 

 

(J12)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(J11)

 

 

 

 

 

 

D

 

 

 

(D70)

 

R77

(R76)

 

 

 

 

 

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R78

 

 

 

 

 

64

 

 

 

 

 

 

 

 

 

 

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R79

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D73

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R80

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D74

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R81

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D75

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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D76

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R83

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D77

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R70

 

 

 

 

 

34

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R71

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

R72

 

 

 

 

1

 

 

 

 

 

 

 

IC1

 

 

 

 

 

32

C10

 

 

 

 

 

 

 

R73

 

 

 

 

 

 

 

 

 

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C6

 

 

 

 

 

 

 

 

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(J6)

(J2) (J4)

 

 

 

 

 

 

 

 

 

 

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(J15)

 

 

 

 

 

 

 

 

 

 

 

 

(J5)

(J7)

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R8

 

 

 

 

 

 

 

 

 

CN-

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ZD3

 

 

 

 

 

 

 

 

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Q4

 

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CF1

C5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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R40

 

 

 

 

 

 

 

 

 

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Q26

 

 

 

 

 

 

 

 

 

 

 

 

 

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1

 

 

 

 

 

 

 

 

D30

 

 

 

 

 

 

 

 

SP40

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

E

Q28

 

 

 

 

 

ZD1

 

 

 

 

 

 

 

SSR1

 

 

 

 

 

 

 

 

 

C3

 

 

 

 

43

 

 

 

 

R1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R3

 

 

 

 

 

C2

 

 

D4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

9

 

 

 

 

 

 

 

 

 

 

 

 

 

 

B

 

44

 

 

 

D1

 

 

HOOD LAMP

 

 

 

C110

 

 

 

 

 

 

 

 

 

 

 

 

(Q1)

 

 

 

 

 

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C4

 

 

 

 

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(R2)

 

 

 

 

 

 

 

 

 

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COMHOOD

75

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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D25

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

46

 

 

 

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CN-B

(CN-

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D26

 

E

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

 

 

 

C20

 

 

 

 

S1

 

 

 

S2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

P

 

 

 

 

 

 

 

 

 

 

B)

 

 

 

 

RY5

 

48

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D27

D28

 

 

 

 

 

 

 

 

 

Q27

B

 

 

 

2

 

 

 

 

1

 

C100

 

 

G

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D20

 

 

 

 

(470V)

T1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VRS1

 

 

 

 

 

 

 

 

 

 

 

RY2

 

 

 

RY1

 

 

 

 

 

 

 

 

 

(J1)

 

 

 

7

 

 

 

 

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(CN - A)

 

 

 

 

 

 

MICRO

 

 

OL

 

 

 

 

 

 

RY3

 

 

 

 

 

7

5

3

1

CN - A

 

 

 

 

 

 

 

 

 

 

AC(H)

 

 

 

 

AC(N) TTM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FM

 

 

 

 

 

 

 

 

 

 

 

H

Figure S-3. Printed Wiring Board

1

2

3

4

5

6

A

B

C

D

E

F

G

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Image 38
Contents Table of Contents Over the Range Microwave OvenBefore Servicing When the testing is completed Dont Touch Before ServicingLeakage test Microwave Measurement ProcedureRequirements 1480 / R-1481 / R-1482 Sharp PLAZA, MahwahOver the Range Microwave Oven ForewordDescription Product SpecificationGeneral Information Grounding InstructionsOven Diagram OFF Condition OperationDescription of Operating Sequence Cooking ConditionCompu Defrost Cooking Power Level P-0 to P-90 CookingCompu Cook AIR Flow Ventilation Methods HOT AIR ExhaustVertical Venting Horizontal VentingFigure O-1. Oven Schematic-Off Condition Description and Function of Components Hood Lamp Troubleshooting GuideStirrer Motor Possible Case Defective Parts Microwave Output Power Test ProceduresProcedure Letter Component Test Magnetron Assembly Test Power Transformer TestHigh Voltage Rectifier Test Procedure Letter Component TestMagnetron Temperature Fuse Test High Voltage Capacitor TestMonitor Switch Test Secondary Interlock Switch TestPrimary Interlock System Test Door Sensing Switch Primary Interlock Relay RY2Hood FAN Motor Test Blown Monitor Fuse TestHood Thermal CUT-OUT Test WHT 3 Touch Control Panel Assembly TestBefore testing KEY Unit Test Foil Pattern on the Printed Wiring Board Test Procedure Letter Component Test Relay TestWeight 1ST Stage 2ND Stage 3RD Stage 4TH Stage Level Time Compu Defrost TestSteps Occurrence Cause or Correction Procedure Component Test LetterOccurrence Cause or Correction Touch Control Panel Assembly Description of LSI LSIIZA876DRSignal similar to P27 Signal to sound buzzerSignal coming from touch key Digit selection signalKey strobe signal Segment data signalsSegment data signal Shapes of Electronic Components Other PrecautionsServicing Servicing of Touch Control PanelComponent Replacement and Adjustment Procedure Hood Exhaust Louver RemovalOuter Case Removal Power Transformer RemovalRe-install Hood FAN MOTOR, Hood Duct and Oven Lamp Socket RemovalHood FAN Thermal CUT-OUT Removal Magnetron RemovalHigh Voltage Rectifier and High Voltage Capacitor Removal Thermal CUT-OUT Cavity RemovalRear View Temperature Fuse Magnetron RemovalCooling FAN Motor Removal Turntable Motor Removal Stirrer Cover and Stirrer FAN InstallationControl Panel ASSEMBLY, Control Unit and KEY Unit Removal Stirrer Motor RemovalStep Positive Lock Connector NO-CASE Type RemovalPositive lock connector Door Assembly Removal Door ReplacementAfter adjustment, check the following Door Assembly RE-INSTALLChoke Cover Door DisassemblyAfter any servicing, make sure of the following Door FrameFigure S-1. Pictorial Diagram Circuit DIP BFBElectric Parts Parts ListParts marked * are used in voltage more than Cabinet PartsOven Parts Door PartsSCREWS,NUTS and Washers HOW to Order Replacement PartsMiscellaneous Model NumberOven and Cabinet Parts Control Panel Parts Door Parts Miscellaneous Packing and Accessories Copyright 1998 by Sharp Corporation ALL Rights Reserved

R-1481, R-1482, R-1480 specifications

Sharp R-1480, R-1481, and R-1482 are popular countertop microwave ovens that exemplify innovation in home cooking technology. These models are designed to cater to modern culinary needs, combining functionality, efficiency, and user-friendly features.

The Sharp R-1480 stands out with its powerful 900 watts of cooking power, ensuring that meals are cooked evenly and thoroughly. This model includes a spacious 1.5 cubic feet capacity, allowing users to cook larger dishes without hassle. One of the most striking features of the R-1480 is its advanced Sensor Cooking technology. This intelligent feature automatically adjusts cooking time and power levels based on the type of food being prepared, delivering optimal results with minimal effort.

The R-1481 model shares many similarities with the R-1480 but introduces additional features that enhance convenience and usability. It also boasts a 900-watt power output and a 1.5 cubic feet interior. What sets the R-1481 apart is its impressive variety of pre-programmed settings. These settings simplify cooking tasks, giving users one-touch access to options for popular foods such as popcorn, pizza, and frozen vegetables. The auto defrost function is another advantage, allowing for quick thawing of meats and seafood based on weight.

Meanwhile, the Sharp R-1482 takes the features of the R-1481 a step further, adding a few unique characteristics. This model incorporates both microwave and grill functionality, allowing for versatile cooking options. Users can enjoy the benefits of grilling their favorite dishes for a perfect finish and flavor infusion. The R-1482 also includes a user-friendly control panel with a large LCD display, ensuring easy navigation through the cooking process.

Across these models, Sharp emphasizes safety and ease of use. The child lock feature provides peace of mind for families, while the easy-to-clean stainless steel interior promotes hygiene and longevity. All models include a turntable for even cooking and reheating, making it easier to prepare meals uniformly.

In conclusion, the Sharp R-1480, R-1481, and R-1482 microwave ovens combine advanced technology with practical features, catering to a diverse range of cooking needs. These models stand as a testament to Sharp’s commitment to quality and innovation in the kitchen, making them excellent choices for anyone seeking efficiency and versatility in their cooking appliances.