P. 22, Connecting external equipment, About the ground terminal – Roland V-1200HD Multi-Format Video Switcher User Manual
Page 22: About the audio selector switch, Gnd cold hot hot cold gnd
22
Connecting External Equipment
* To prevent malfunction and equipment failure, always turn
down the volume, and turn off all the units before making any
connections.
* Provide cable and adapter plugs to match the connector
configuration on the equipment you’re using.
* This instrument is equipped with balanced (XLR) type jacks.
Wiring diagrams for these jacks are shown below. Make
connections after first checking the wiring diagrams of other
equipment you intend to connect.
AUDIO IN connector
AUDIO OUT connector
GND
COLD
HOT
HOT
COLD
GND
About the Ground Terminal
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Depending on the circumstances of a particular setup, you may
experience a discomforting sensation, or perceive that the surface
feels gritty to the touch when you touch this device, microphones
connected to it, or the metal portions of other objects. This is due
to an infinitesimal electrical charge, which is absolutely harmless.
However, if you are concerned about this, connect the ground
terminal (see figure) with an external ground. When the unit is
grounded, a slight hum may occur, depending on the particulars
of your installation. If you are unsure of the connection method,
contact the nearest Roland Service Center, or an authorized Roland
distributor, as listed on the “Information” page.
Unsuitable places for connection
Unsuitable places for connection
5
Water pipes (may result in shock or electrocution)
5
Gas pipes (may result in fire or explosion)
5
Telephone-line ground or lightning rod (may be dangerous in
the event of lightning)
About the Audio Selector Switch
The V-1200HD’s audio input/output connectors support either
analog or digital (AES/EBU) signals. Use the audio selector switch to
choose the signal type for your connected equipment.
* The audio selector switch setting affects both input and output
signals. For example, selecting “ANALOG” sets both the AUDIO IN
and AUDIO OUT connectors to function as analog connectors.
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