Check the magnetron is normal, but the transmitting antenna aperture magnetron ignition was fired because of irregular shape (normal triangular). The same shape as the market currently has no product to sell, taking into account some of the microwave magnetron transmitting antenna aperture is a regular hexagon or circle.8A8service manual download site

It was found that AA rechargeable battery case just to put on, cut down the lower section of the battery casing and the bottom of the drill hole with a diameter of about 8mm (the outer edge of its triangle coincide), remove the burr, which was set in the original holes on the transmitter, power test, everything is normal.8A8service manual download site