There should be a bolt on the upper part of the body, just behind the neck heel.
Maybe you need to remove a small button to have access to it.
If you want to increase the angle to get higher action, I suggest you slack the strings somewhat before turning the bolt.
If you want to reduce the angle to decrease the action there's no need to slack the strings, but no harm in doing so.
Maybe you need to remove a small button to have access to it.
If you want to increase the angle to get higher action, I suggest you slack the strings somewhat before turning the bolt.
If you want to reduce the angle to decrease the action there's no need to slack the strings, but no harm in doing so.