VINCENT SP-T800, Инструкция по эксплуатации, Страница: 25 / 48

Vincent
25
CONNECTIONS FOR THE STANDBY CONTROL
(POWER CONTROL)
Many AV-Systems consist of a multitude of individual components. To avoid the necessity of switching them on
and off before and after every use, many manufacturers have equipped their devices with what is known as
“POWER CONTROL” circuit or “TRIGGER”. This kind of remote-controlled standby circuit is used primarily for
preamplifier and power amplifiers. To employ these functions, direct or indirect cable connections must be
made between the preamplifier (or integrated amplifier) and all the devices which support this function. The
“POWER CONTROL” function operates in such a way that each switching on or off of one device in the system
(usually the preamplifier) automatically brings about the switching on or off of all the connected devices which
support this function. Please keep in mind that all devices which respond to the power control are not discon-
nected from the mains network when switched off. They are set to a standby state instead. For connecting
cables, two-core cables with 3.5 mm jack plugs (mono) are used. For each connection between two devices
one of those cables is needed.
If the SP-T800 main amplifier is to be switched on/off automatically with the preamplifier, then the cable con-
nections for power control described below must be made correctly and the “POWER” switch (1) must be
moved to the switched off position. If you don't wish to use this function or if the other components do not sup-
port it, all you have to do is leave out these cable connections.
The SP-T800 has two connectors for power control. One output on the transmitting device (integrated ampli-
fier, preamplifier or a device that passes on the power control signal), usually labelled “POWER CONTROL”
or “TRIGGER”, must be connected to one of these two connectors. If the “POWER CONTROL” cable is con-
nected to this device, the second jack connector serves to pass on the switch signal (for example to the main
amplifier of the other channel) or it remains free. This main amplifier cannot generate the switching signal for
other components on its own!
A theoretically infinite number of devices may be served with the switch impulses from a transmitting device.
To this end, on most devices one of the two “POWER CONTROL” connectors may be used as a signal input
and the other as a signal output. This method of passing on the signal via the devices’ inputs and outputs and
of thereby chaining them is also known as “daisy chaining”.
SP-T800 z.B. 2. SP-T800
stereo preamplifier
power control cable
Attention:
Many devices which can be controlled by a switching
signal (not preamplifiers or integrated amplifiers),
have two terminals which do not differentiate between
input and output. In this case either of the two can be
selected. Even some devices that transmit the switch
signal (preamplifiers and integrated preamplifiers)
lack this marking. In this case it may be assumed that
they both are signal outputs.
“POWER CONTROL” sockets of preamplifiers or inte-
grated amplifiers must not be interconnected! All
receiving devices must not be connected to more than
one preamplifier or integrated amplifier (directly or
indirectly)!
If a “POWER CONTROL” cable is connected to the
back of the main amplifier and the 12V switching
signal is given, the main amplifier can no longer be
switched off with the “POWER” button. If the power
control function is not desired, the switch signal cable
must therefore be removed!