WARNING TO SERVICE PERSONNEL
TABLE OF CONTENTS
WARNING TO SERVICE PERSONNEL
MICROWAVE MEASUREMENT PROCEDURE
BEFORE SERVICING
Before Servicing
WARNING TO SERVICE PERSONNEL
After repairing
When the testing is completed
A. Requirements
MICROWAVE MEASUREMENT PROCEDURE
B. Preparation for testing
C. Leakage test
SERVICE MANUAL
DANGER
1440 Bridge Gate Dr Diamond Bar, CA
If provided, Vent Hood, Fan assembly, Cooling Fan Motor
MICROWAVE DRAWER SPECIFICATION
DESCRIPTION
GENERAL INFORMATION
GROUNDING INSTRUCTIONS
DESCRIPTION OF OPERATING SEQUENCE
POWER LEVEL P-0 TO P-90 COOKING
OPERATION
OFF CONDITION
SENSOR COOKING CONDITION
Cooking Sequence
MICROWAVE
SCHEMATIC OFF CONDITION
CLOSED, COOK OFF CONDITTION
DOOR
A TOUCH CONTROL PANEL ASSEMBLY TEST
TEST PROCEDURES
PROCEDURE
Before testing
COMPONENT TEST
TEST PROCEDURES
PROCEDURE
LETTER
Check supply voltage and oven power cord
TEST PROCEDURES
PROCEDURE
LETTER
TESTING METHOD FOR AH SENSOR AND/OR CONTROL UNIT
TEST PROCEDURES
PROCEDURE
COMPONENT TEST
COMPONENT TEST
TEST PROCEDURES
PROCEDURE
LETTER
PROCEDURE
Refer to the disassembly instructions found on Page
TEST PROCEDURES
G MAGNETRON ASSEMBLY TEST
I SECONDARY INTERLOCK SWITCH TEST
TEST PROCEDURES
PROCEDURE
J STOP SWITCH TEST
M POWER TRANSFORMER TEST
TEST PROCEDURES
PROCEDURE
COMPONENT TEST
4 Reset Circuit
TOUCH CONTROL PANEL ASSEMBLY
Control Unit and Power Unit
5 Indicator Circuit
Power source voltage 0V GND
DESCRIPTION OF LSI IC-1
Power source voltage 0V GND
Internal clock oscillation frequency setting input
Segment data signal
Signal
Common data signal
Signal coming from touch key
Common relay driving signal. Square Waveform 60Hz
Signal
Magnetron high-voltage circuit driving signal
Signal to sound buzzer
1 Structure of Humidity Sensor
HUMIDITY SENSOR CIRCUIT
ventilation opening for sensing
2 Operational Principle of Humidity Sensor
4. Other Precautions
TOUCH CONTROL PANEL SERVICING
1 Servicing the touch control panel with power supply of the oven
2. Servicing of Touch Control Panel
1. Employing lead-free solder
PRECAUTIONS FOR USING LEAD-FREE SOLDER
2. Using lead-free wire solder
3. Soldering
WARNING AGAINST HIGH VOLTAGE
COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE
WARNING FOR WIRING
To prevent an electric shock, take the following pre- cautions
MICROWAVE DRAWER DISASSEMBLY
Un-hook/Attach White AC Wire to Bottom Terminal
POWER CORD REPLACEMENT
Un-hook/Attach Black AC Wire to Top Terminal
Un-hook/Attach Ground to metal Tab on Back Plate
Re-install
STOP SWITCH, SECONDARY INTERLOCK SWITCH AND MONITOR SWITCH REMOVAL
STOP SWITCH, SECONDARY INTERLOCK SWITCH AND MONITOR SWITCH ADJUSTMENT
After adjustment, check the following
DRAWER/SLIDE RAIL REMOVAL
DRAWER ASSEMBLY AND CHOKE REMOVAL
DRAWER SUPPORT ANGLE REMOVAL
1. Follow the Microwave Drawer disassembly as previously
ACTUATOR REMOVAL/ADJUSTMENT
SWITCH ANGLE REMOVAL/ADJUSTMENT
SWITCH ANGLE REMOVAL
Actuator adjustment
RACK GEAR REMOVAL
AUTO DRAWER GEAR REMOVAL/INSTALLATION
Bottom cover
Installation
MMD24B
HIGH VOLTAGE COMPONENTS
MMD24S
to Back Plate
FM A
Figure S-2. Power Unit Circuit
MICRO
CN-A
MMD24S MMD24B
UNIT
CONTROL
UNIT
MMD24S MMD24B
Figure S-4. Printed Wiring Board of Power Unit
2.5A
A B C D E F G H
MMD24B
5.PrintedWiringBoard
MMD24S
UnitControlof
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MMD24S MMD24B