Sharp R530es Service Manual

PRECAUTIONS TO BE OBSERVED BEFORE AND
DURING SERVICING TO AVOID POSSIBLE EXPO-
SURE TO EXCESSIVE MICROWAVE ENERGY
CHAPTER 1. WARNING TO SERVICE PERSONNEL
CHAPTER 2. MICROWAVE MEASUREMENT PRO-
CEDURE
CHAPTER 3. FOREWORD AND WARNING
CHAPTER 4. PRODUCT DESCRIPTION
CHAPTER 5. GENERAL INFORMATION
CHAPTER 6. OPERATION
CHAPTER 7. TROUBLESHOOTING GUIDE CHAPTER 8. TEST PROCEDURES
CHAPTER 9. TOUCH CONTROL PANEL ASSEMBLY
CHAPTER 10. PRECAUTIONS FOR USING LEAD-
FREE SOLDER
CHAPTER 11. COMPONENT REPLACEMENT AND...

CONTENTS
PRECAUTIONS TO BE OBSERVED BEFORE
AND DURING SERVICING TO AVOID POSSIBLE
EXPOSURE TO EXCESSIVE MICROWAVE ENER-
GY
CHAPTER 1. WARNING TO SERVICE PERSON-
NEL
[1] Before Servicing.......................................... 1-1
[2]  When the testing is completed, ................... 1-1
[3] After repairing.............................................. 1-1
CHAPTER 2. MICROWAVE MEASUREMENT 
PROCEDURE
[1] Requirements:............................................. 2-1
[2] Preparation for...

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R530EWTService Manual PRECAUTIONS TO BE OBSERVED BEFORE AND DURING SERVICING TO AVOID
POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY
BEFOR SERVICING
PRECAUTIONS TO BE OBSERVED BEFORE AND
DURING SERVICING TO AVOID POSSIBLE
EXPOSURE TO EXCESSIVE MICROWAVE
ENERGY
(a) Do not operate or allow the oven to be operated with the door open.
(b) Make the following safety checks on all ovens to be serviced before activating the magnetron or other
microwave source, and make repairs as necessary: (1)...

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R530EWTService Manual CHAPTER 1. WARNING TO SERVICE PERSONNEL
Microwave ovens contain circuitry capable of producing very high voltage and current, contact with following parts may result in a severe, possibly
fatal, electrical shock.
(Example)
High Voltage Capacitor, High Voltage Power Transformer, Magnetron, High Voltage Rectifier Assembly, High Voltage Harness etc..
Read the Service Manual carefully and follow all instructions.
[1] Before Servicing
1. Disconnect the power supply cord  ,...

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R530EWTService Manual CHAPTER 2. MICROWAVE MEASUREMENT PROCEDURE
[1] Requirements:
1. Microwave leakage limit (Power density limit): The power density of microwave radiation emitted by a microwave oven should not exceed 1mW/
cm2 at any point 5cm or more from the external surface of the oven, measured prior to acquisition by a purchaser, and thereafter (through the use-
ful life of the oven), 5 mW/cm2 at any point 5cm or more from the external surface of the oven. 
2. Safety interlock...

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R530EWTService Manual CHAPTER 3. FOREWORD AND WARNING
[1] FOREWORD
This Manual has been prepared to provide Sharp Electronics Corp. Service Personnel with Operation and Service Information for the SHARP
MICROWAVE OVENS, R-530EK-T, R-530EW-T and R-530ES-T.
It is recommended that service personnel carefully study the entire text of this manual so that they will be qualified to render satisfactory customer
service.
Check the interlock switches and the door seal carefully. Special attention...

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R530EWTService Manual CHAPTER 4. PRODUCT DESCRIPTION
[1] SPECIFICATIONS
ITEM DESCRIPTION
Power Requirements120 Volts 
60 Hertz
Single phase, 3 wire grounded
Power Consumption 1700W / Approx. 14.3 Amperes
Power Output1200 W nominal of RF microwave energy (IEC Test procedure)
Operating frequency 2450 MHz 
Outside DimensionsWidth  24 
Height 13-3/8 
Depth  19-1/8
Cooking Cavity Dimensions
(2.0 Cubic feet)Width  17-3/8             NOTE: Internal capacity is calculated by measuring 
Height...

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R530EWTService Manual CHAPTER 5. GENERAL INFORMATION
[1] 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 accor-
dance 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...

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R530EWTService Manual CHAPTER 6. OPERATION
[1] DESCRIPTION OF OPERATING SEQUENCE 
The following is a description of component functions during oven operation.
1. OFF CONDITION
Closing the door activates the door sensing switch and secondary
interlock switch. (In this condition, the monitor switch contacts are
opened.)
When oven is plugged in, 120 volts A.C. is supplied to the control unit.
(Figure O-1).
1) The display will show “SHARP SIMPLY THE BEST PRESS CLEAR
AND PRESS CLOCK”.
To set any...

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3. Sensor detects moisture and humidity and calculates cooking time
and variable power.
4.1. Cooking Sequence.
1. Operate the oven in sensor cooking mode by referring to the opera-
tion manual.
NOTE: The oven should not be operated on SENSOR immediately
after plugging in the unit. Wait two minutes before cooking on
SENSOR.2. The coil of shut-off relay (RY-1) is energized, the turntable motor,
oven lamp and cooling fan motor are turned on, but the power
transformer is not turned on.
3. After...