Sharp R-1506, R-1500, R-1505, R-1501 WHT 3, Touch Control Panel Assembly Test, Before testing

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R-1500

R-1501

R-1505

R-1506

TEST PROCEDURES

PROCEDURE

LETTER

COMPONENT TEST

YLW

4

HOOD FAN CAPACITOR

5

RED

22

 

BLU

 

1

 

33

11

2

 

BLK

 

3

 

WHT

 

Resistance between;

 

 

BLU (1)

AND

YLW (4) =

0

(Shorted)

BLK (2)

AND

YLW (4) =

33

 

 

BLU (1)

AND

BLK (2)

=

33

 

 

BLK (2)

AND

WHT (3)

=

11

 

 

WHT (3) AND

RED (5)

=

22

 

 

6-PIN CONNECTOR

 

BLU

BLK

WHT

OF HOOD FAN MOTOR

1

2

3

5.Reconnect all leads removed from components during testing.

6.Reinstall the outer case (cabinet).

7.Reconnect the power supply cord after the outer case is installed.

8.Run the oven and check all functions.

45

YLW RED

LTOUCH 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 units, Control Unit and Key Unit, and also the Control Unit is divided into two units, LSI Unit and Power Unit, and troubleshooting by unit replacement is described according to the symptoms indicated.

Before testing,

1)Disconnect the power supply cord, and then remove outer case. Refer to procedure of " HOOD EXHAUST LOUVER REMOVAL ", " REMOVAL OF OVEN FROM WALL " and " OUTER CASE REMOVAL ".

2)Open the door and block it open.

3)To discharge high voltage capacitor, wait for 60 seconds.

4)Remove two (2) screws holding the hood intake duct R to the ovencavity top plate and the base plate R. And remove the hood intake duct R.

5)Disconnect the leads to the primary of the power transformer.

6)Ensure that these leads remain isolated from other components and oven chassis by using insulation tape.

1.Key Unit. NOTE ;

1)Check key unit ribbon connection before replacement.

2)Reconnect all leads removed from components during testing.

3)Re-install the hood intake duct R with two (2) screws.

4)Re-install the outer case (cabinet).

5)Reconnect the power supply cord after the outer case is installed.

6)Run the oven and check all functions.

The following symptoms indicate a defective key unit.

a)When touching the pads, a certain pad produces no signal at all.

b)When touching a number pad, two figures or more are displayed.

c)When touching the pads, sometimes a pad produces no signal. If the key unit is defective.

1) Disconnect the power supply cord, and then remove outer case.

2) Open the door and block it open.

3) To discharge high voltage capacitor, wait for 60 seconds.

4) Replace the key unit.

5) Reconnect all leads removed from components during testing.

6) Re-install the outer case (cabinet).

7) Reconnect the power supply cord after the outer case is installed.

17

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Contents 1506 Table of ContentsBefore Servicing Dont Touch Before Servicing When the testing is completedRequirements Microwave Measurement ProcedureLeakage test Foreword Sharp PLAZA, MahwahOver the Range Microwave Oven 1500/ R-1501/ R-1505/ R-1506Grounding Instructions Product SpecificationGeneral Information DescriptionOven Diagram Level Control PanelLight HI/ LO FAN HI/ LO Stop Clear Start Minute Plus OFF Condition Power Level P-0 to P-90 CookingOperation Description of Operating SequenceHorizontal Venting Ventilation Methods HOT AIR ExhaustVertical Venting AIR FlowFigure O-1. Oven Schematic-Off Condition Description and Function of Components Hood FAN Motor Troubleshooting GuideHood Lamp Possible Case Defective Parts Test Procedure ProblemPower Transformer Test Test ProceduresProcedure Letter Component Test Magnetron Assembly Test Microwave Output PowerHigh Voltage Capacitor Test Procedure Letter Component TestMagnetron Temperature Fuse Test High Voltage Rectifier TestSecondary Interlock Relay RY2 Primary Interlock Switch TestSecondary Interlock System Test Door Sensing Switch Monitor Switch TestHood FAN Motor Test Procedure Component Test LetterBlown Monitor Fuse Test Hood Thermal CUT-OUT TestBefore testing Touch Control Panel Assembly TestWHT 3 KEY Unit Test 1ST Stage 2ND Stage Procedure Letter Component Test Relay TestFoil Pattern on the Printed Wiring Board Test Defrost Center TestSteps Occurrence Cause or Correction QKITPB035Description of LSI Touch Control Panel AssemblyLSI OUT Key strobe signal OUT Oven lamp, fan motor and turntable motor driving signalSignal synchronized with commercial power source frequency Internal clock oscillation frequency input settingHood motor driving signal Key strobe signalHood lamp driving signal Hood motor high / low driving signalServicing of Touch Control Panel Other PrecautionsServicing Shapes of Electronic ComponentsHood Exhaust Louver Removal Component Replacement and Adjustment ProcedureOuter Case Removal Power Transformer RemovalRe-install Pictorial DiagramThermal CUT-OUT Cavity Removal Magnetron RemovalHigh Voltage Rectifier and High Voltage Capacitor Removal Hood FAN Thermal CUT-OUT RemovalCooling FAN Motor Removal Temperature Fuse Magnetron RemovalTurntable Motor and Food Lamp Sockets Removal Positive Lock Connector NO-CASE Type RemovalControl Panel ASSEMBLY, Control Unit and KEY Unit Removal Positive lock connectorControl Unit and KEY Unit Removal Key unit locationDoor Assembly RE-INSTALL Door ReplacementAfter adjustment, check the following Door Assembly RemovalChoke Cover Door DisassemblyReplacement Door Frame AssemblyHigh Voltage Components Control UnitFigure S-2. Power Unit Circuit Unit CircuitDIP Cabinet Parts Parts ListParts marked * are used in voltage more than Electric PartsDoor Parts Oven PartsMiscellaneous Model Number HOW to Order Replacement PartsPacking and Accessories SCREWS,NUTS and WashersOven 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.