Sharp R-21JCA-F service manual Specification, General Information, Maximum width, depth and height

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R-21JCA-F

 

SPECIFICATION

 

 

 

 

ITEM

 

 

DESCRIPTION

 

 

 

 

Power Requirements

120 Volts

 

 

 

14 Amperes

 

 

 

60 Hertz / Single phase, 3 wire grounded

 

 

Power Output

1000 watts (IEC 705 Test Procedure)

 

Operating frequency of 2450MHz

 

 

 

Case Dimensions

Width 20-1/2" (520mm)

 

 

Height 12-1/8" (309mm)

 

 

Depth 16"

(406mm)

 

 

 

 

Cooking Cavity Dimensions

Width 13-7/8" (353mm)

NOTE: Internal capacity is calculated by measuring

(1.0 Cubic Feet )

Height 8-1/8"

(207mm)

maximum width, depth and height.

 

Depth 14-5/8"(370mm)

Actual capacity for holding food is less.

 

 

 

Control Complement

Light Up Dial (6 minutes)

 

 

No cooking control

 

 

 

 

 

Oven Cavity Light

Yes

 

 

 

 

 

Safety Standard

UL Listed

FCC Authorized

 

DHHS Rules, CFR, Title 21, Chapter 1, Subchapter J, NSF Certified

 

 

 

 

GENERAL INFORMATION

GROUNDING INSTRUCTIONS

This oven is equipped with a three prong grounding plug. It must be plugged into a wall receptacle that is properly installed and grounded in accordance with the National Electrical Code and local codes and ordinances.

In the event of an electrical short circuit, grounding reduces the risk of electric shock by providing an escape wire for the electric current.

WARNING: Improper use of the grounding plug can result in a risk of electric shock.

Electrical Requirements

The electrical requirements are a 120 volt 60 Hz, AC only,

15 amp. or more protected electrical supply. It is recommended that a separate circuit serving only this appliance be provided. When installing this appliance, observe all applicable codes and ordinances.

A short power-supply cord is provided to reduce risks of becoming entangled in or tripping over a longer cord.

Where a two-pronged wall-receptacle is encountered, it is the personal responsibility and obligation of the customer to contact a qualified electrician and have it replaced with a properly grounded three-pronged wall receptacle or have a grounding adapter properly grounded and polarized. If the extension cord must be used, it should be a 3-wire, 15 amp. or higher rated cord. Do not drape over a countertop or table where it can be pulled on by children or tripped over accidentally.

3-Pronged Plug

Grounded

 

Receptacle Box

Grounding Pin

3-Pronged Receptacle

CAUTION: DO NOT UNDER ANY CIRCUMSTANCES CUT OR REMOVE THE ROUND GROUNDING PRONG FROM THIS PLUG.

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Contents Model R-21JCA-F Before Servicing When the testing is completed Dont Touch Before ServicingMicrowave Measurement Procedure RequirementsLeakage test Light Duty Commercial Microwave Oven 21JCA-F Foreword Sharp Electronics CorporationMaximum width, depth and height SpecificationGeneral Information Actual capacity for holding food is lessOven Diagram 10 6OFF Condition OperationDescription of Operating Sequence Cooking ConditionFigure O-1 Oven Schematic-OFF Condition FM AMDescription and Function of Components Troubleshooting Guide Test Procedure Possible Case Defective PartsProblem Microwave Output Power Power Transformer TestHigh Voltage Capacitor Test Thermal CUT-OUT Test 125˚C OvenThermal CUT-OUT Test 145˚C Magnetron Primary Interlock System Test Door Sensing SwitchMonitor Switch Test Primary Interlock Relay RY1Control Panel Assembly Test Before testingNoise Filter Test Test Procedures Letter Component Test Relay TestSteps Occurrence Cause or Correction Touch Control Panel Assembly Description of LSIInternal clock oscillation frequency input setting Pin No Signal Description Auto clear terminalPower source voltage Power source voltage +5VServicing of Touch Control Panel Other PrecautionsTouch Control Panel Servicing Servicing ToolsEmploying lead-free solder Precautions for Using LEAD-FREE SolderUsing lead-free wire solder SolderingComponent Replacement and Adjustment Procedure Power Transformer RemovalOuter Case Removal Control Panel Assembly Removal Magnetron RemovalOven Lamp and Lamp Socket Removal Cooling FAN Motor Removal Positive Lock Connector NO-CASE Type RemovalAntenna Motor Removal Rear ViewPower Supply Cord Replacement Re-installRemoval Door Parts Removal Antenna Motor Shaft Replacement After any service, make sure of the followingRemoval Installation of Ceramic Shelf Figure C-10. Stirrer Antenna Assembly InstallationPictorialDiagram HighvoltagecomponentsCN-A3 Pin5mm Pitch Figure S-3. Printed Wiring Board Cabinet Parts Parts ListElectric Parts Control Panel PartsMiscellaneous HOW to Order Replacement PartsDoor Parts SCREWS,NUTS and WashersOven and Cabinet Parts Control Panel Parts Packing and Accessories Copyright 2005 by Sharp Corporation ALL Rights Reserved