User manual VINCENT SV-234

[. . . ] Dear Customer, we thank you for the confidence you prove in purchasing our product. It will match your high demands towards sound and manufacturing quality. Though it is understandable that you want to plug and play this product instantaneously, we encourage you to read this manual carefully before installation. It will help you in handling and operating this machine in your system and obtaining the best possible performance, even if it was installed by your dealer. [. . . ] If you want the amplifier SV-234 to automatically switch on/off every time the HiFi component connected to "LINE5" is switched on/off, the power control cable connections subsequently described must be applied. Please leave the input connector "LINE5" unused if you do not wish to use the amplifier SV-234 just as a power amplifier. 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 disconnected from the mains network when switched off. For each connection between two devices one of those cables is needed. If you don't wish to use this function or if the other components do not support it, all you have to do is leave out these cable connections. The SV-234 is equipped with one input connector and two output connectors for the power control. As a result, this amplifier can supply and transmit the switching signal for other components in the system as well as accept it from other components. Both cases are described in the following. (1) The complete system is to be switched on/off at the SV-234 POWER button In this situation the input in the terminal "POWER CONTROL" (15) must not be occupied and must be left open. Two HiFi components that are able to react to the power control signal can be connected directly to the amplifier's power control outputs. If more than two devices, which can be controlled, are to be connected, then it is necessary, to make the power control connection between the preamplifier and these further devices through the outputs of the two devices which are connected directly. For that reason, every HiFi component that accepts power control signals is also equipped with a power control output. Thus, in theory it is possible to provide an infinite number of HiFi components with the power control signal. This approach, to loop a signal through a chain of components, is commonly referred to as "daisy chaining". (2) The SV-234 is intended to react to the trigger signal If, for example, two output channels of a preamplifier are connected to the main input "LINE5", if this HiFi component can supply a power control signal and if you want the amplifier SV-234 to switch on/off synchronously with the component attached to "LINE5", one power control output of this component must be connected to the input in the SV-234 terminal "POWER CONTROL" (15). The connector at the sourcing HiFi component may as well be labelled with "TRIGGER OUTPUT". Both power control outputs of the SV-234 can additionally be used to forward the received switching signal to other components of your system. 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. [. . . ] The cable connections are not tight, the connectors are dirty or a cable is defective. A record player has been connected to a high level input without using a phono preamplifier. An audio source with standard line level output is connected to the amplifier direct input "LINE5" (11). Use line level audio sources only at the inputs "LINE1". [. . . ]