Comments on: LG Microwave Oven MS3840SR Repair

By: Tito Kanshulu

Tito Kanshulu — Thu, 09 Feb 2017 19:25:59 +0000

Mark, you must be a good teacher on the chalkboard. I like the way u explain these things. Thanks for the information. Like Musy, I,also, saw the lizard. kkkk

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By: Parasuraman S

Parasuraman S — Wed, 08 Feb 2017 05:47:19 +0000

Very, very informative article. You have done more or less a 'biopsy' of this oven, so that students like me can learn a lot! Many thanks!

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By: Humberto

Humberto — Tue, 07 Feb 2017 18:53:09 +0000

Hi Mark, great repair. Good explanations and images too.

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By: suraga Electronics

suraga Electronics — Tue, 07 Feb 2017 07:16:04 +0000

Good Repair job Mr.Mark.
And I Got More information.

Thanks !

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By: Ulises Aguilar Pazzani

Ulises Aguilar Pazzani — Tue, 07 Feb 2017 03:35:13 +0000

Mr Rabone nice article interesting

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By: Bulent NUR

Bulent NUR — Mon, 06 Feb 2017 15:14:59 +0000

Good job, nice informative and photologic :).

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By: Robert Calk

Robert Calk — Mon, 06 Feb 2017 14:08:22 +0000

Thanks Mark. We need to be very careful. In electronics, impatience can kill.

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By: Mark

Mark — Mon, 06 Feb 2017 12:58:13 +0000

Thanks Anthony,

As I mentioned, I fried one of my multimeters during one of my earlier microwave repairs - a lesson well learned!
As a hobbyist, I am constantly learning and always humbled by the wealth of experience on this blog.

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By: Albert van Bemmelen

Albert van Bemmelen — Mon, 06 Feb 2017 08:41:49 +0000

In reply to Mark.

I guess that using another 900 Watt 'tube' depends only on the filament current it is able to handle, and that the used Capacitor still oscillates in the Circuit with the same frequency? And maybe only with a smaller Microwave 'tube' with smaller constructed Magnets and Cooler Blades?

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By: Anthony Paterson

Anthony Paterson — Mon, 06 Feb 2017 08:12:09 +0000

Hi Mark,

Since the demise of CRT TVs the humble microwave is now the most dangerous, and potentially lethal, appliance in domestic use. Thank you for insight into you discharge gizmo and the tip for testing the high voltage diode using a 9V battery. The old AVO Multimeter used to have two battery sources and on the high ohms range would have been able to test this diode but not too many of those around now. Keep up the good work - I always enjoy reading your articles'

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