Grass Valley PVTV NEWS Rev.4.02 - Manual (Page 90)

B-2 STUDIO NEWS
that indicate the power supply operation,
DVE operation, and Sync lock.
Problem STUDIO NEWS cannot be locked
to an external sync.
1. Verify that the external sync line is connected
to the Reference Loop on the Video Out
Module, and that the DIP switch settings
under the Video Output Module’s front
access panel are set in proper external sync
positions.
Problem Machine controls are inoperable.
1. If you still control some devices, check the
connections of the devices that are not work-
ing. Make sure the correct connectors on the
Serial Control module are used.
2. Have someone click the machine controls of
the device that is not functioning while you
check the LED on that control port of the
Serial Control Module. the LED should flash
as they click the controls. If an LED is flashing
on a port to which you are not connected,
you maybe connected to the wrong port.
3. Verify that the control ports in the SETUP
Menu show the proper settings for the device
connected.
Problem SCRIPT Viewer and STUDIO
NEWS do not appear to be communicating.
1. Make sure the LAN cable is connected prop-
erly from the SCRIPT Viewer PC’s LAN con-
nector labeled NETWORK 1 to INPUT 1 on
STUDIO NEWS’s CPU module.
2. Check IP address of each machine by double-
clicking the miniViewer windows. the remote
machine address of each machine should
match the local machine address of the
other.
Problem The Chroma Keyer is not giving
good results when in FULL mode.
1. If the foreground object(s) has a black bor-
der, the Luma value is probably too high. If
the object has a grey border, the Luma value
is probably too low.
2. Background color spilling onto the fore-
ground source means that the Chroma Angle
is too low. This control generally is set to a
high value around 80-100.
3. Grey edges to the foreground object mean
that the Suppress Level is too high.
4. If the edges seem very hard, try increasing
the Black Key level control.
5. The background breaking through into dark
areas of the foreground source probably
means the Fore Key is too low.