Niles Audio 8 Manuale Utente
18
Sync Off Delay
It is common for many video components such as VCR’s and DSS receivers to continue
to output video for a few seconds (or longer) after they have been turned off. This creates
a false sync signal and may interfere with reliable operation. It is important to note duration
of the component’s “Sync Off Delay”, and discuss this with the installer and the end user.
to output video for a few seconds (or longer) after they have been turned off. This creates
a false sync signal and may interfere with reliable operation. It is important to note duration
of the component’s “Sync Off Delay”, and discuss this with the installer and the end user.
If a Master Key is pressed immediately after the “System Off” key is pressed, the false
sync signal may prevent the IntelliControl from turning on that component. To maintain
sync during operation and troubleshooting, it is important that both the installer and the
end user know how long they must wait before the system can be turned back on after a
System Off command has been issued. This problem can be eliminated by including a
delay (of whatever duration necessary) in the Ending Sequence of the “System Off” key.
sync signal may prevent the IntelliControl from turning on that component. To maintain
sync during operation and troubleshooting, it is important that both the installer and the
end user know how long they must wait before the system can be turned back on after a
System Off command has been issued. This problem can be eliminated by including a
delay (of whatever duration necessary) in the Ending Sequence of the “System Off” key.
This problem can reach epic proportions when using an APC-2 to current-sense an LCD
projector. Most LCD projectors require the internal fan to stay on for as long as ten
minutes after the projector is turned off. This may trigger the current sensing device to
send a false sync signal for ten minutes!
projector. Most LCD projectors require the internal fan to stay on for as long as ten
minutes after the projector is turned off. This may trigger the current sensing device to
send a false sync signal for ten minutes!
Attempt to adjust the current sensing device to reduce the sync delay to a few seconds
after the projector is turned off. If this is not possible, change to a different sync method
(such as the LS-1 Light Sensor).
after the projector is turned off. If this is not possible, change to a different sync method
(such as the LS-1 Light Sensor).
Testing the Switched AC Outlet
Make sure that the switched outlet actually switches “On” and “Off” with the component’s
“power” command. Two 1995 model Harman Kardon receivers (the base model Pro-Logic
and the base model stereo receiver) and the 1995 base model Denon stereo receivers
advertise “Switched” AC outlets. However these “switched outlets” do not turn on and off
with IR commands. they only switch with the front panel “Power” button. For products with
this type of “pseudo-switched” outlet, a Niles LS-1 Light Sensor or the APC-2 Current
Sensor must be used to provide reliable sync.
“power” command. Two 1995 model Harman Kardon receivers (the base model Pro-Logic
and the base model stereo receiver) and the 1995 base model Denon stereo receivers
advertise “Switched” AC outlets. However these “switched outlets” do not turn on and off
with IR commands. they only switch with the front panel “Power” button. For products with
this type of “pseudo-switched” outlet, a Niles LS-1 Light Sensor or the APC-2 Current
Sensor must be used to provide reliable sync.
Testing the Video Output of a Source
Make sure that the video signal turns off when the component is turned off with an IR
command. Some video components output a video signal even when off. This can be
difficult to detect with a television since some televisions generate a blue screen when
there is no input (which is why use of the TV’s “Tuner” output is recommended). To reliably
test for video sync, you will need an IntelliControl Main System Unit, the IntelliFile II
Programming Software and PC Interface, the RF/IR Test LED, and the Transfer Cable.
Follow these steps to test for video sensing:
command. Some video components output a video signal even when off. This can be
difficult to detect with a television since some televisions generate a blue screen when
there is no input (which is why use of the TV’s “Tuner” output is recommended). To reliably
test for video sync, you will need an IntelliControl Main System Unit, the IntelliFile II
Programming Software and PC Interface, the RF/IR Test LED, and the Transfer Cable.
Follow these steps to test for video sensing:
1) Hook the video component to the video sync port that corresponds to its Master Key
label.
label.
2) Connect an RF/IR Test LED to the RF Test port on the Main System Unit.
3) Power up the Main System Unit.
4) Power up and connect the IntelliFile II PC Interface to the Main System Unit with the
supplied Transfer Cable.
supplied Transfer Cable.