User`s guide

Quick Reference: V4HD Front Panel
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1. These 10-segment level meters are dedicated to the
V4HD’s eight analog audio inputs. The top red ‘over’ LED illuminates when the signal reaches full scale—for even just one sample. The second ‘over’ LED below only illumi- nates momentarily so that you can continue to adjust level even after clipping has just occurred.
2. The light that is illuminated here tells you which
8-channel audio bank (analog, AES/EBU, optical or embedded) you are monitoring with the programmable meter bank to the right. You can monitor input or output for any bank. Use the LCD or software to choose the desired bank.
3. This bank of level meters can be programmed (via the
LCD or software) to display one of four different banks: analog, AES/EBU, optical or embedded. The LEDs to the left show which bank you are currently monitoring.
4. Internally, the V4HD is divided into four 8-channel banks
of audio I/O: analog, AES/EBU, optical and embedded (SDI or HDMI). This section shows input and output activity for the three digital banks. The SRC light indicates that sample rate conversion is being applied to an input or output bank.
5. The CLOCK LEDs indicate the global audio sample rate at
which the V4HD is operating. Use the MOTU Audio Setup software to set the sample rate or to choose an external clock source, from which the sample rate will be set. When no sample clock is currently present, these lights flash. For example, if you’ve set the V4HD to slave to an external clock, such as AES/EBU, but there is no clock signal currently being detected, these lights will flash. The Time Code Lock LED illuminates when the V4HD is converting time code.
6. The Time Code Display rolls whenever the V4HD is
converting time code, either from the time code input or perhaps from SDI-embedded time code. It also rolls during playback from host software (Final Cut Pro) and reflects the position of the play head on the time line.
7. The VIDEO STATUS section provides quick feedback
regarding the V4HD’s current video operation. Repeat- edly press the STATUS button (9) to cycle through the various modes. See “Video Status” on page 96 for details.
8. The V4HD LCD provides direct access to most of its
settings. Repeatedly press the MENU button (9) to cycle through the main menus, and then use the PAGE and CURSOR buttons, along with the VALUE/ENTER knob, to choose and make settings. For complete details, see “Multi-Function LCD display” on page 97.
9. Repeatedly press the MENU button to cycle through the
main menus in the programmable LCD. Repeatedly press the STATUS button to cycle through the various video status modes in the VIDEO STATUS section.
10. Use these buttons and knob to navigate the settings in
the programmable LCD. For complete details, see “Multi- Function LCD display” on page 97.
11. This is a standard quarter-inch stereo headphone jack.
From the factory, its output matches analog outputs 1-2 on the rear panel. But it can be programmed to mirror any other output pair. Use the volume knob above to control its level.
12. The PHONES knob is a rotary encoder that can be pushed
as well as turned:
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Turn it to adjust headphone volume. The LCD provides temporary feedback for the headphone level as you turn the knob.
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Push in the knob (so that it clicks) and then turn it to adjust the volume of the analog outputs 1-2. Again, the LCD provides temporary feedback as you turn. By default, the knob controls analog outputs 1-2, but you can program the knob (via the LCD) to control any combination of the V4HD’s 32 outputs.
13. FireWire is a “plug-and-play” protocol. That means that
you can turn off the V4HD and turn it back on (or even unplug it) without restarting your computer. Keep in mind, however, that if you wish to change the V4HD’s settings with the console software, the V4HD needs to be plugged in and switched on.
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