[bigtim2001]

I have an LG microwave model LMVM2277ST that the interior cabinet lite and the cooking functions quit working. You can set cook time press start and nothing happens. When the door is opened the interior lite does not come on either. Both functions went out at the same time. Looking to find schematics or repair manual to trouble shoot problem unless someone has experienced this before. I already have replaced both left and right cabinet door latch switches.
Thanking you for your help in advance,
Tim

[MicrowaveDisplaydotcom]

Did the cooktop lamps blow recently?

If so, the resulting surge often causes light, fan, or cooking trouble.

That can usually be economically repaired for much less than the cost of a new board.

If not, then it may be related to the door switches, or the door switch mounts may be loose or damaged. See the door switch help file here.

For this model, you can find the overall schematic here, the exploded views here, the small training manual here, and the large training manual here.

You can order LG parts from Encompass here, but you usually have to call them toll-free at 866-779-5835 because many LG service manuals do not have the part nunbers.

Good luck, and be safe.

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