Want to hook up your computer to your TV but your TV is without a VGA input? Then LKV2000 is your solution. LKV2000 converts PC VGA to composite (Yellow RCA) and/or S-video TV display signal. It is with a VGA pass through so that you can keep your computer monitor connected while sending a signal to the TV. All outputs are loopthrough, display simultaneously. It is with fine tuning control to adjust the picture to your preference. It draws power from an available USB port using a supplied USB power cable. No external power supply is needed
1.No VGA Output is displayed.
Please check power supply and all cables are rightly connected.
2.No Composite Video or S-Video output.
Please check the RCA cable and s-video cable is in good condition and rightly connected; and the composite video or s-video display devices are switched to the right mode.
3.VGA output picture is not good. It may be caused by insufficient power from USB port.
Please try to connect a DC 5V external power supply. Or you can try to change PC resolution and refresh rate.