What to do if Samsung CM1929 Microwave Oven does not accept key input?
If your Samsung Microwave Oven isn't accepting key inputs (program), it could be because the key input is not in sequence, there's an open or loose connection of the membrane key pad to the Ass’y PCB, a shorted or open membrane panel, or a defective Ass’y PCB. Refer to the operation procedure. Replace the PCB main.
General| Microwave power | 1850 W |
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Safety precautions for servicing to avoid possible exposure to microwave energy.
General safety measures and compliance with Federal Performance Standard 21 CFR.
Warnings and procedures for handling high voltage components and capacitors.
Step-by-step guide for replacing magnetron, motor, and lamp components.
Procedure for safely removing and replacing the high voltage transformer.
Procedure for safely replacing the high voltage capacitor.
Checking continuity and resistance of the high voltage transformer.
Continuity checks to diagnose open filament or shorted magnetron.
Method for measuring magnetron output power using a water temperature rise test.
Steps for measuring microwave leakage using a survey meter.
Common electrical issues, causes, and correction steps for the microwave oven.
Table of error codes, their causes, and corresponding correction procedures.
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