Replace magnetron in a samsung smh7174 (by 2 users)

If you or a friend decide to look into it, we have critical safety information, info on door switch diagnosis and replacement, and disassembly information at our site, and our link is at our listing here on FixYa: http://tinyurl.com/yzjozk

But essentially you unplug the power, remove the microwave from the wall mount and remove the outer wrapper / cover.

Discharge the high voltage capacitor and then it should be pretty straightforward, but please do read and heed the safety warnings.

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