Preparations For Power-Up; Connecting The Ac Adaptor; Using An External Power Source; Turning The Power On And Off - Roland VR-50HD Owner's Manual

Preparations for Power-Up

Connecting the AC Adaptor

Connect the AC adaptor as shown in the figure.
NOTE
First connect the AC adaptor to the AC adaptor connector on
the VR-50HD, and then plug the power cord into a power outlet.
Place the AC adaptor so the side with the indicator faces upwards
and the side with textual information faces downwards.
* The indicator will light when you plug the AC adaptor into an AC
outlet.
To prevent the inadvertent disruption of power to your unit (should
the plug be pulled out accidentally), and to avoid applying undue
stress to the AC adaptor jack, anchor the power cord using the cord
hook, as shown in the illustration.

Using an External Power Source

The VR-50HD can use an external power source.
NOTE
• Use an external power source that can supply at least 90 W of
current.
• Make sure that the wiring of the external power
source you want to connect matches the external
power connector on the VR-50HD. Connecting an
external power source that has different wiring
might cause malfunction.
• Be sure to use an external power source that has the voltage
within DC 12 V–16 V. Using an external power source that has
out of the voltage range may cause damage to the unit and the
external power source.
Using the AC adaptor and an external power source at the same
time is also possible. When doing so, the AC adaptor becomes the
"main power supply" and the external power source becomes the
"backup power supply. "
If either power source fails to supply sufficient current, operation
automatically switches to the other.
For information on the compatibility of external power sources, check this website.
http://www.roland.com/support/
When using an external power source, be sure to refer to the owner's manual
for the power source.
12
Power cord
AC outlet

Turning the Power On and Off

Once everything is properly connected (p. 14), be sure to follow the
procedure below to turn on their power. If you turn on equipment
in the wrong order, you risk causing malfunction or equipment
failure.
Turning the power on
* Before turning the unit on/off, always be sure to turn the volume
down. Even with the volume turned down, you might hear some
sound when switching the unit on/off. However, this is normal
and does not indicate a malfunction.
* At powerup, the VR-50HD automatically recalls the settings
saved in Memory No. 1.
Depending on the settings recalled, input sounds might be
produced even if the volume levels (faders) have been lowered,
but this does not indicate a malfunction.
1.
Make sure all devices are turned off .
2.
Turn on the power to the VR-50HD .
* This unit is equipped with a protection circuit. A brief interval (a
few seconds) after turning the unit on is required before it will
operate normally.
3.
Turn on the power to the source devices .
Turn on the power to video cameras or other source equipment
connected to input connectors on the VR-50HD.
4.
Turn on the power to the output devices .
Turn on the power to projectors or other devices connected to
output connectors on the VR-50HD.
Turning the power off
5.
Turn off the power in this sequence: output devices g
source devices g the VR-50HD .