What is the combined purpose of the sync conductors in RGBS?

The combined purpose of the sync conductors in RGBS is to synchronize both horizontal and vertical signals. In an RGBS video signal, the "S" stands for sync, which includes synchronization information necessary for the proper display of the image on a screen. This sync information ensures that the horizontal and vertical scan rates of the display are aligned with the incoming video signal, enabling the image to be rendered accurately and without distortion.

Without synchronization, the components of the video image could be misaligned, leading to issues such as flickering or image instability. The horizontal sync signal indicates when each line of pixels should start, while the vertical sync signal indicates when the screen should move to the next frame. Therefore, having dedicated sync conductors allows for accurate timing between the video output and display, which is crucial for maintaining video integrity and clarity.

The other options, while related to different aspects of multimedia signals, do not accurately describe the role of sync conductors in RGBS. For instance, combining audio signals is unrelated to video synchronization, powering devices is not relevant in this context, and enhancing video quality pertains to different types of signal processing rather than synchronization specifically.