VSC-100 Manual
www.marshall-usa.com910
11. Block Diagram
1
1
2
1
Select
Select
Select
2 2
Audio Extract
HDMI Audio
Ext HDMI
Stereo Line Out
USB 2.0 Convenience Pass-Through
12 Volt DC
Input
HDMI OutHDMI In
Hi-Fi Preamp + Phantom Power
VSC-100 Functional Block Diagram
External
Audio In
Gain
Controls Drivers
External
Audio Ext HDMI
Audio Insert
USB
Process
USB 3.0 Out
(Video, Audio)
My computer says, “the USB device is not recognized” or “the device does not support the
required parameters”.
First, be sure to use the USB cable that was supplied with the VSC-100. If it becomes lost or
damaged, please replace it with a “USB 3.0 type A-to-B” cable which provides the power and
bandwidth necessary for proper operation of the unit. When in doubt, try another cable.
Next, a message similar to the one above can also occur when the VSC-100 is connected to a USB
2.0 connector. This can be fixed by plugging into a USB 3.0 port on the host computer. USB 3.0
connections are usually identified by blue color inside the connector.
If only a USB 2.0 connection is available, lowering the source video format usually works. 720p is
a good choice.
The video source is 1080p50 (or 60) but the computer says the incoming video is different
(760p for example). Why isn’t it the same as the source?
The VSC-100 is compatible with the USB industry standard UVC control protocol. This allows the
host computer to adjust the format and frame rate independently from the incoming source. Many
applications have controls that allow changing these parameters. Video conferencing applications
typically do not have these controls and simply force the settings that work best. Please consult the
instructions that are provided with the application for more information.
The VSC-100 HDMI output is connected to a video recorder. The recorder is getting is a blank
picture.
OR……….
The HDMI output is connected to a video monitor and
the picture is perfect, but the picture on the computer
is black with the message “Input: HDCP Content”.
Can this be fixed?
HDMI video contains a “copy protection” system called HDCP “High Bandwidth Digital Content
Protection”. The principle behind HDCP is that copyrighted content should be seen and heard but
not recorded or transmitted. What this boils down to is that material containing an HDCP “flag”
will be visible only on display devices, in other words, monitors, projectors and television sets. A
common difficulty is that DVD players, Blue Ray players and set top boxes (cable and satellite)
normally force HDCP on even when the material being played is not copyrighted. Video cameras,
on the other hand, never use HDCP. Computer outputs may or may not use HDCP depending on
the material being output. For details on HDCP, please visit www.hdmi.org.
Note: SDI inputs do not have content protection.
12. Tips and Fixes
