84
Troubleshooting
Screen is disrupted when video is switched
• When using transition, P in P, or key composite effects
Disruption of the video images may occur when the video is
switched with the A-BUS (B-BUS) SD IN select buttons or the C-BUS
(D-BUS) HD/RGB IN select buttons. Switch the video after first
stopping the effect.
Subscreen not displayed when P in P
is used
• Subscreen positioned near the edge of the screen
When setting the subscreen position with the POSITION joystick or
by other means, most of the subscreen may end up outside of the
screen itself. If this occurs, the subscreen will not appear in the
screen. In such instances, use the POSITION joystick to move the
subscreen back to a position where it is visible.
• When using the Multi Screen function
When the Multi Screen function (p. 44) is used, part of the screen is
expanded when displayed. In this case, the subscreen portion does
not expand, and as a result, the subscreen may cease to appear. If
this occurs, use the POSITION joystick to move the subscreen back
to a suitable position.
Video image not being removed
properly with the key effects
Adjust the value of the “Soft Edge” setting in the menu. If the value
is set too high, portions of the video not belonging to the key image
may also end up being masked.
Use video input that features a high signal-to-noise ratio. For
example, you can achieve better key composite results with HD key
images than with SD key images.
• When using the Multi Screen function
When the Multi Screen function (p. 44) is used, the key composite
conditions of the master and slave V-440HDs may differ.
This is because the video input for these V-440HDs comprises
analog signals, with the resulting differences in video signals being
the physical cause of this problem.
To mitigate these conditions, adjust the “Brightness” and “Contrast”
parameters with “2. HD/RGB Input” (p. 59) and “7. SD Input” (p.
61) while using the key composite effects, adjusting each V-440HD
so that the same video is synthesized.
*
When using the Multi Screen function, the LEVEL knob function is
linked to the master and slave devices, so you should lock in a fixed
value.
Screen is disrupted when video is switched
• When using transition, P in P, or key composite effects
Disruption of the video images may occur when the video is
switched with the A-BUS (B-BUS) SD IN select buttons or the C-BUS
(D-BUS) HD/RGB IN select buttons. Switch the video after first
stopping the effect.
Video fader not operating properly
• Video fader calibration setting seems to be wrong
With time and extended use, the settings for the video faders’ top
and bottom positions may drift into inaccuracy. If this occurs, adjust
the video faders (p. 64) with the settings in “13. System” (p. 64) in
the menu.
No movement when POSITION
joystick adjusted
The P in P position may fail to move even when the POSITION
joystick is adjusted. If this occurs, check the LOCK button next to the
POSITION joystick to see whether or not the button is lit. If the
button is lit, it indicates that the POSITION button is locked, which
prevents the POSITION joystick from functioning. To enable
operation of the POSITION joystick, press the LOCK button so its
light is off.
V-440HD becoming hot
• Something is blocking the exhaust vent or ventilation port
The V-440HD is cooled with forced air, so if anything impeding the
exhaust vent or any other air flow intake or vent, it will prevent
proper cooling of the V-440HD.
• Other equipment is stacked on top of the V-440HD
Setting other devices directly on top of the V-440HD may result in
heat from these devices being transferred to the V-440HD, thus
causing the V-440HD to overheat. In such situations, either raise the
other device upwards away from the V-440HD or provide shelving
or racks placed between the devices.
Odd noises coming from inside the unit
• Debris is caught in the exhaust vent
The V-440HD is cooled with forced air, using a cooling fan installed
inside the exhaust vent. If anything caught up in cooling fan, it can
cause audible noises from the interior of the V-440HD, and may
even lead to damage. Do not place any objects liable to enter the
exhaust vent near the vent.
If something does get inside the exhaust vent and you are unable to
remove it from the outside, contact the nearest Roland Service
Center.
Effects
Operations in Individual Sections
Other
Содержание V-440HD
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