Sony 198p camera external microphone has no sound. A master knows how to solve it.

1, take a good look at the part of the manual about the external microphone.

2. An external microphone is usually connected to the rear port. First, turn on the rear switch, which can be set directly through the camera external function key. If not, please go to the camera menu settings.

3. Make sure the muzzle interface is intact and see if the needle inside is broken.