When retrieving Toyota check engine light codes with an OBD II scan tool, proceed as follows: 1. Connect scan tool to the 16-pin data link connector (DLC) located underneath the steering column. The connector may have a removable cover. 2. Turn the ignition on.
The player is most likely tuning the strings. Near the chin rest there are four (or five, if the violin has five strings) metal knobs called fine tuners. While the pegs at the other end ARE used to tune the strings, it's usually in conjunction with the fine tuners. The pegs get the string close to tuned, and the fine tuners finish the job.
It is usually the larger knob on the side of the microscope, and is used to quickly bring the specimen to be close to in focus. It either moves the stage or the body tube up and down. Once the specimen is close to in focus, the fine-adjustment knob can be used to sharpen the image (or focus on different layers in the specimen). Body-tube focus knob: