WARNING TO SERVICE PERSONNEL Microwave ovens con
TABLE OF CONTENTS
SHARP CORPORATION
tor, High Voltage Power Transformer, Magnetron, High Volt
BEFORE SERVICING
Dont Touch Danger High Voltage
WARNING TO SERVICE PERSONNEL
After repairing
Before Servicing
A. Requirements
MICROWAVE MEASUREMENT PROCEDURE
B. Preparation for testing
C. Leakage test
If provided, Vent Hood, Fan assembly, Cooling Fan Motor
DANGER
SHARP PLAZA, MAHWAH NEW JERSEY
MICROWAVE OVEN R-530EK/ R-530EW FOREWORD
DESCRIPTION
SPECIFICATION
GENERAL INFORMATION
GROUNDING INSTRUCTIONS
OVEN DIAGRAM
Sensor Cooking
DESCRIPTION OF OPERATING SEQUENCE
POWER LEVEL 0% TO 100% COOKING
OPERATION
OFF CONDITION
MICROWAVE
Cooking Sequence
SCHEMATIC NOTE CONDITION OF OVEN 1. DOOR CLOSED
Figure O-1. Oven Schematic-Off Condition
Figure O-2. Oven Schematic-Cooking Condition
SCHEMATIC NOTE CONDITION OF OVEN 1. DOOR CLOSED
CAVITY TEMPERATURE FUSE
DOOR SENSING AND SECONDARY INTERLOCK SWITCHES
MONITOR SWITCH
MAGNETRON TEMPERATURE FUSE
TROUBLESHOOTING GUIDE
When the testing is completed
CK = Check / RE = Replace
A MAGNETRON ASSEMBLY TEST
TEST PROCEDURES
PROCEDURE
MICROWAVE OUTPUT POWER
E CAVITY TEMPERATURE FUSE TEST
TEST PROCEDURES
PROCEDURE
MAGNETRON TEMPERATURE FUSE TEST
F SECONDARY INTERLOCK SWITCH TEST
TEST PROCEDURES
PROCEDURE
G MONITOR SWITCH TEST
I TOUCH CONTROL PANEL ASSEMBLY TEST
TEST PROCEDURES
PROCEDURE
Before testing
LETTER
TEST PROCEDURES
PROCEDURE
COMPONENT TEST
LETTER
TEST PROCEDURES
PROCEDURE
COMPONENT TEST
M FOIL PATTERN ON THE PRINTED WIRING BOARD TEST
TEST PROCEDURES
PROCEDURE
COMPONENT TEST
TESTING METHOD FOR AH SENSOR AND/OR CONTROL UNIT
TEST PROCEDURES
PROCEDURE
LETTER
LETTER
TEST PROCEDURES
PROCEDURE
COMPONENT TEST
3 Power Source Circuit
TOUCH CONTROL PANEL ASSEMBLY
2 Indicator Circuit
6 Synchronizing Signal Circuit
Common data signal COM13
Common data signal COM11
Common data signal COM12
Common data signal COM14
Key strobe signal
Signal
Signal synchronized with commercial power source frequency
Key strobe signal
Power source voltage
Signal
Power source voltage GND0V
Internal clock oscillation frequency control input setting
Common data signal COM9
ABSOLUTE HUMIDITY SENSOR CIRCUIT
Signal
Common data signal COM10
5. Other Precautions
TOUCH CONTROL PANEL SERVICING
1 Servicing the touch control panel with power supply of the oven
2. Shapes of Electronic Components
WARNING FOR WIRING
COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE
OUTER CASE REMOVAL
WARNING AGAINST HIGH VOLTAGE
MAGNETRON REMOVAL
POWER TRANSFORMER REMOVAL
HIGH VOLTAGE RECTIFIER AND HIGH VOLTAGE CAPACITOR REMOVAL
Reinstallation
OVEN LAMP AND LAMP SOCKET REMOVAL
POSITIVE LOCK CONNECTOR NO-CASE TYPE REMOVAL
CONTROL PANEL ASSEMBLY REMOVAL
TURNTABLE MOTOR REMOVAL
Make sure that the fan blade rotates smoothly after installation
AH SENSOR REPLACEMENT
COOLING FAN MOTOR REMOVAL
Reinstallation
Figure C-3. Latch Switch Adjustments
DOOR REPLACEMENT
After adjustment, check the following
Figure C-4. Door Disassembly
Note After any service to the door
SEALER FILM
REINSTALLATION
After any service, make sure of the following
HIGH VOLTAGE COMPONENTS
Figure S-1. Pictorial Diagram
POWER UNIT
CONTROL PANEL
Figure S-2. Power Unit Circuit
IXA098DR
Circuit
3 LSI Unit
IC-1
D6 B
CN - C
CN - C
CN - B
ELECTRIC PARTS
PARTS LIST
Note The parts marked “ Δ” may cause undue microwave exposure
CABINET PARTS
MISCELLANEOUS
HOW TO ORDER REPLACEMENT PARTS
DOOR PARTS
SCREWS,NUTS AND WASHERS
OVEN AND CABINET PARTS
CONTROL PANEL PARTS
DOOR PARTS
MISCELLANEOUS
PACKING AND ACCESSORIES
COPYRIGHT 2001 BY SHARP CORPORATION ALL RIGHTS RESERVED
R - 5 3 0 E K R - 530EW