Troubleshooting - MOTU V4HD User Manual

Troubleshooting

APPENDIX A
I see the following error message in Final Cut Pro:
Unable to locate external device. Why?
If you see the error message below when operating
the V4HD with Final Cut Pro, it means that Final
Cut Pro has lost communication with the V4HD
hardware. Check your V4HD hardware and cable
connections.
Figure A-1: If you see this message check your hardware and cable
connections.
I am seeing a FireWire bandwidth error message.
If you have connected the V4HD to the computer
via the 400 MBit/sec FireWire A port (page 8), you
may see a warning message (Figure A-2):
Figure A-2: FireWire bandwidth warning.
If you see this message, try the following:
In the MOTU Audio Setup console (Figure 8-1
■
on page 72), choose a lower sample rate (such as
44.1 or 48 kHz).
In the MOTU Audio Setup console (Figure 8-1
■
on page 72), disable audio banks you are not using.
Unplug your FireWire A connection to the
■
computer and switch to a FireWire B connection.
Connecting or powering gear during operation
It is not recommended that you connect/
disconnect, or power on/off devices connected to
the V4HD while recording or playing back audio.
Doing so may cause a brief glitch in the audio.
When I try to genlock via the V4HD's VIDEO REF
input, I have problems.
If there is no device connected to the REF THRU
jack, make sure that the termination switch is set to
the 75Ω TERM position. Proper termination is
critical for successful genlock.
The V4HD is having trouble genlocking to my
video deck.
Is the deck connected to a video output from the
V4HD? If so, it could be a clock loop problem,
where the deck is trying to resolve to its video
input, while the V4HD is trying to resolve to video
input from the video deck. Try disconnecting the
output from the V4HD to the video deck. You
could also try choosing the V4HD's manual
genlock mode. See "Auto Detect Input Format" on
page 48.
I see a message in the MOTU Video Setup preview
window that says "Codec Missing". Why can't I see
a preview?
If you see a Codec Missing message in the Preview
frame, this means that MOTU Video Setup cannot
find a software component required to display the
incoming video format. Compatible codecs are
installed with Final Cut Pro. Try installing Final
Cut Pro.
My reference monitor(s) connected to the V4HD
only displays single frames.
Make sure All Frames is selected in the
View>External Video menu in Final Cut Pro.
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