Could you please supply a circuit Digram for a LG . Microwave oven ( transformer to Magetron and capacitor )
The Lg is
Model Ms-3446VR
Input 240v 1600 W
From out 2450 MHz. 1100 W
What do you want to know (and why)?, assuming it's the area you mention then it's pretty well exactly the same on any microwave oven (and really crude and simple).
Historically it was sometimes actually printed on a paper label on the inside of the top cover, but it's so simple it's not really needed.