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Detailed safety measures for servicing to prevent microwave exposure.
Warning about potential exposure to microwave radiation during operation.
Instructions for physically placing and setting up the microwave oven.
Guidance on correctly grounding the microwave oven for safety.
Overview of the microwave oven's key components and capabilities.
Detailed explanation of the microwave's control interface and buttons.
Steps for operating the oven using microwave power.
Instructions for using the grill function of the microwave oven.
Steps for operating the microwave using combined cooking modes.
Describes circuit behavior when the oven door is opened.
Explains circuit operation during microwave power and time selection.
Details circuit operation when the grill function is active.
Lists essential tools and equipment for servicing the microwave.
Outlines steps and precautions for measuring microwave energy leakage.
Steps to remove the external casing of the microwave oven.
Procedure for disconnecting and removing the power supply cord.
Instructions for removing the microwave's control panel.
Steps to remove the entire door assembly from the microwave.
Procedure for removing the high voltage transformer.
Steps to remove the fan motor assembly.
Instructions for removing HV capacitor and diode.
Steps to remove the air duct assembly.
Procedure for safely removing the magnetron.
Steps for detaching and removing the turntable motor.
Steps to remove the timer motor from the control panel.
Details on the door interlock mechanism and its switches.
Procedure to test the primary interlock switch continuity.
Procedure to test the secondary interlock switch continuity.
Procedure to test the monitor switch continuity.
Test procedure for the high voltage transformer resistance.
Test procedure for magnetron resistance.
Test procedure for HV capacitor resistance.
Test procedure for HV diode continuity.
Test procedure for fuse continuity.
Test procedure for heater element resistance.
Test procedure for grill thermostat.
Test procedure for oven thermostat.
Test procedure for timer motor continuity.
Test procedure for fan motor resistance.
Test procedure for turntable motor resistance.
Troubleshooting steps for when the oven lamp fails to illuminate.
Troubleshooting steps when the oven fails to start after setting the timer.
Troubleshooting steps for low microwave output power.
Troubleshooting steps for when the grill heater is not functioning.
Troubleshooting steps for when the oven fails to cook.
Exploded view of the microwave oven's door components.
Exploded view of the control panel assembly parts.
Exploded view of the main oven cavity components.
Exploded view of the latch board assembly parts.
Exploded view of the interior components of the microwave.
Exploded view of the base plate assembly parts.
General| Brand | LG |
|---|---|
| Model | MB-393T |
| Category | Microwave Oven |
| Language | English |
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