Sharp R-1501, R-1500, R-1505, R-1506 Possible Case Defective Parts, Test Procedure Problem

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R-1500

R-1501

R-1505

R-1506

CK

LOW VOLTAGE

CK

NO POWER AT OUTLET

RE

SHORT IN POWER CORD

CK

OPENED OR SHORTED WIRING

CK

HOOD MOTOR CAPACITOR

RE

HOOD LAMP OR SOCKET

RE

TURNTABLE MOTOR

RE

FAN MOTOR

RE

OVEN LAMP OR SOCKET

PFOIL PATERN ON P.W.B. O DEFROST CENTER

N RELAYS (RY-5), (TY6) N RELAY (RY-4)

N RELAY (RY-3) N RELAY (RY-2) N RELAY (RY-1)

M KEY UNIT

L CONTROL UNIT

K HOOD FAN MOTOR

J HOOD HERMAL CUT-OUT I MONITOR FUSE

H MONITOR SWITCH

G SECONDARY INTERLOCK SYSTEM F PRIMARY INTERLOCK SWITCH

E TEMPERATURE FUSE OR THERMAL CUT-OUT D HIGH VOLTAGE CAPACITOR

C H.V. RECTIFIER

B POWER TRANSFORMER A MAGNETRON

CK = Check / RE = Replace

POSSIBLE CASE AND

DEFECTIVE PARTS

TEST PROCEDURE

PROBLEM

CONDITION

Home fuse blows when power cord is plugged into wall receptacle.

Monitor fuse blows when power cord is plugged into wall receptacle.

Display does not illuminate when power cord is first plugged into wall receptacle.

properly when STOP/CLEAR button is touched.

appear on the display with beep sound during

 

with door is opened.

Display does not operate

(The time of day should

normal condition.)

Oven lamp does not light

 

 

OFF

CONDITION

Hood fan motor operates when power cord is first plugged into wall receptacle.

(60˚C) because of

does not turn on

operating at low

of oven base seems more than 140˚F

the range below. But hood fan motor

(Normally, food fan motor should be

Temperature

operation of

automatically. speed.)

Hood lights do not turn on when LIGHT HI/LO button is pressed.

button.

HI/LO button

Hood fan motor does not rotate at all with touched FAN HI/LO

Speed of the hood fan motor does not change when the FAN is touched for this function.

IDLE

CONDITION

Oven lamp does not light in cook cycle. (But it does light when door is opened.)

Fan motor does not operate. (Oven lamp and turntable motor operate.)

Turntable motor does not operate (Oven lamp lights and fan motor operate.)

Oven does not go into cook cycle when START button is touched

heat is produced in oven load.

all at end of cook cycle.)

uneven heating is produced in

little or no

cooked at

extremely

Oven seems to be operating but

(Food incompletely cooked or not

Oven goes into a cook cycle but oven load (food).

MICROWAVE

COOKING

CONDITION

Variable cooking does not operate properly except Cooking Power 10 (P- HI) mode.

Function of DEFROST CENTER does not operate properly.

Oven goes into DEFROST CENTER but food is not defrosted well.

12

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Contents Table of Contents 1506Before Servicing When the testing is completed Dont Touch Before ServicingLeakage test Microwave Measurement ProcedureRequirements 1500/ R-1501/ R-1505/ R-1506 Sharp PLAZA, MahwahOver the Range Microwave Oven ForewordDescription Product SpecificationGeneral Information Grounding InstructionsOven Diagram Light HI/ LO FAN HI/ LO Stop Clear Start Minute Plus Control PanelLevel Description of Operating Sequence Power Level P-0 to P-90 CookingOperation OFF ConditionAIR Flow Ventilation Methods HOT AIR ExhaustVertical Venting Horizontal VentingFigure O-1. Oven Schematic-Off Condition Description and Function of Components Hood Lamp Troubleshooting GuideHood FAN Motor Test Procedure Problem Possible Case Defective PartsMicrowave 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 Primary Interlock Switch TestSecondary Interlock System Test Door Sensing Switch Secondary Interlock Relay RY2Hood Thermal CUT-OUT Test Procedure Component Test LetterBlown Monitor Fuse Test Hood FAN Motor TestWHT 3 Touch Control Panel Assembly TestBefore testing KEY Unit Test Defrost Center Test Procedure Letter Component Test Relay TestFoil Pattern on the Printed Wiring Board Test 1ST Stage 2ND StageQKITPB035 Steps Occurrence Cause or CorrectionLSI Touch Control Panel AssemblyDescription of LSI Internal clock oscillation frequency input setting OUT Oven lamp, fan motor and turntable motor driving signalSignal synchronized with commercial power source frequency OUT Key strobe signalHood motor high / low driving signal Key strobe signalHood lamp driving signal Hood motor driving signalShapes of Electronic Components Other PrecautionsServicing Servicing of Touch Control PanelComponent Replacement and Adjustment Procedure Hood Exhaust Louver RemovalPictorial Diagram Power Transformer RemovalRe-install Outer Case RemovalHood FAN Thermal CUT-OUT Removal Magnetron RemovalHigh Voltage Rectifier and High Voltage Capacitor Removal Thermal CUT-OUT Cavity RemovalTemperature Fuse Magnetron Removal Cooling FAN Motor RemovalPositive lock connector Positive Lock Connector NO-CASE Type RemovalControl Panel ASSEMBLY, Control Unit and KEY Unit Removal Turntable Motor and Food Lamp Sockets RemovalKey unit location Control Unit and KEY Unit RemovalDoor Assembly Removal Door ReplacementAfter adjustment, check the following Door Assembly RE-INSTALLDoor Frame Assembly Door DisassemblyReplacement Choke CoverControl Unit High Voltage ComponentsFigure S-2. Power Unit Circuit Circuit UnitDIP Electric Parts Parts ListParts marked * are used in voltage more than Cabinet PartsMiscellaneous Oven PartsDoor Parts SCREWS,NUTS and Washers HOW to Order Replacement PartsPacking and Accessories Model NumberOven and Cabinet Parts Control Panel Parts Door Parts Miscellaneous Copyright 2001 by Sharp Corporation ALL Rights Reserved
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R-1506, R-1501, R-1505, R-1500 specifications

The Sharp R-1500, R-1505, R-1501, and R-1506 are part of Sharp's extensive line of microwave ovens, showcasing advanced cooking technologies and user-friendly features that cater to the modern kitchen. These models are designed to provide convenience and efficiency while delivering consistent cooking results.

One of the standout features across these models is the use of Sharp's innovative microwave technology, which ensures even heating and cooking. This is achieved through a combination of advanced microwave distribution systems that help to minimize cold spots common in traditional microwaves. As a result, users can enjoy perfectly cooked meals, whether it's reheating leftovers or preparing a fresh dish.

Each model comes equipped with a variety of cooking presets that simplify meal preparation. These presets are tailored for a range of foods, including popcorn, pizza, vegetables, and baked goods. With just the press of a button, users can automatically adjust the cooking time and power level, making the cooking process intuitive and hassle-free.

The R-1500 and R-1505 models, in particular, offer a sleek and modern design that can seamlessly blend into any kitchen décor. The front-facing control panel is easy to read and navigate, while the spacious interior can accommodate larger dishes, making these models ideal for family meals or entertaining guests.

In addition to their cooking capabilities, these microwaves prioritize energy efficiency and safety. With features like a child lock function and an eco-mode, users can have peace of mind knowing that their appliance is safe for the entire family and environmentally conscious.

The R-1501 model adds additional versatility by including a grill function, allowing users to achieve that perfect crispiness on meats and vegetables. This feature enhances the range of cooking options available, making it suitable for those who enjoy grilling but may not have the outdoor space or equipment.

Lastly, the R-1506 combines the benefits of microwave cooking with user-friendly features such as a digital display and programmable timers. This model is particularly well-suited for busy households, as it allows for quick meal prep without sacrificing quality.

In summary, the Sharp R-1500, R-1505, R-1501, and R-1506 microwave ovens represent a blend of advanced technology, safety features, and user-convenience. They cater to a broad spectrum of cooking needs, from basic reheating to more complex meal preparations, all while maintaining a focus on efficiency and style.