A VGA port is a common way to connect a video cable from a computer to an external monitor or other device for viewing PC content. The four-sided port contains 15 holes arranged in three rows that receive a VGA plug for data transmission. Connecting a VGA cable to a high-definition television (HDTV) requires a converter box that can process the analog VGA signal into a digital signal for viewing on the TV. Available from computer and electronics stores, the converter box is also equipped with a pair of stereo input jacks for connecting audio cables.
Things You'll Need:
VGA cable
Stereo cable with two CA-type plugs on each end
VGA to HDMI converter box
HDMI cable
Instructions
Hook up the plug on one end of the VGA cable to the port on the converter box with the wider end of the plug turned upward. Twist the threaded knob on each side of the plug clockwise for a secure connection to the adapter.
Insert the white and red plugs on one end of the stereo cable into the left and right audio inputs on the converter box. Always connect the red audio plug to the right audio jack to avoid reversing the polarity of the signal.
Insert the plug on the HDMI cable into the six-sided HDMI port on the converter box. The wider end of the plug faces upward.
Connect the plug on the other end of the HDMI cable into any HDMI IN port on the back panel of the HDTV.
Connect the free end of the VGA cable to any VGA output port, such as on the back of a computer tower.
Connect the free ends of the stereo cables to the jacks on a Y-adapter. The mini-plug on the other end of the Y-adapter can be inserted into the Line OUT audio jack on a computer. Because the HDMI cable transmits video and audio to an HDTV, the converter box processes both the VGA signal and the stereo audio signal into a single output through the HDMI cable.
Tips & Warnings
Unplug the TV and the computer from the electrical outlets while connecting the adapter and video cables.

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