Video Sync
Most video sources provide either a picture or a blue-screen when the device is on. Using
a Y-splitter, this video output can be routed to both the video switching Preamp (or TV)
and to the MSU’s composite video sync port that corresponds to that source’s Master Key.
Note: The labeling of the Master Keys on the Tabletop Remote must match the sync
connections on the MSU. (For example, if the VCR is Master Key #4, one side of the
VCR’s split video output must be connected to video sync port #4).
The IntelliControl video sync ports have an input impedance of 10,000 ohms. This high
impedance circuit assures that even with the use of a “Y” or splitter connection, the signal
sent to the television (or Preamp) is absolutely unaffected. Typically, a “Y” connector and
an additional video cable are needed for video sync. If the component has more than one
video output, only a cable is needed.
Syncing the TV
Televisions, which have multiple inputs, present a sync problem. Some TV’s do not output
a video signal from the Monitor Video output when there is no signal coming into the
selected input. Thus, the Intellicontrol will be deceived into thinking that the TV is off, when
it is on. Although a TV’s monitor output will not provide reliable sync, there are four
options:
1. Use the TV’s “Tuner Output” if available. This will ensure that the Sync is reliable.
2. Specify a Niles APC-2 current sensing device to detect the flow of current to the TV
when it is on.
Note: This is the only reliable way to sync a Plasma TV (assuming it
does not feature separate “On” and “Off” codes
).
3. Use a Niles LS-1 Light Sensor. (See “12V Sync” options below)
4. Use a TV with separate “On” and “Off” commands.
Note: The TV’s sync signal output (video or 12V) must be connected to the dedicated “TV
Sync” port on the IntelliControl MSU.
12 Volt Sync
The IntelliControl Main System Unit has 12V Sync connections for the system’s
preamp/receiver, TV Monitor (or projector), and up to eight source components. The 12V
Sync signal lets the IntelliControl know whether the component is on or off and can be
supplied by five different methods:
1. 12V DC Sync via a Wall Adapter Plugged into a Switched AC Outlet
Many preamps, integrated amps, receivers, surround-sound processors, and cable TV
descramblers have a switched AC outlet (i.e. the outlet is hot when the preamp is “on”,
and dead when the preamp is “off”) to automatically power up components with latching
power. In an IntelliControl system, the switched outlet may be expanded with an extension
cord or power strip to accommodate a 12V DC 200mA wall adapter and any “latching
power” components you may be using. The output of the wall adapter is connected to the
IntelliControl’s dedicated “Preamp 12V” sync input.
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