ADJUSTMENTS, MENUS, AND SETUP continued | 35 |
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Trigger Setup
Many home theater components (including amplifiers, retractable screens, and some lighting equipment) can be controlled by DC trigger signals. The C 1 has three trigger outputs, two of which, P1 and P2, are programmable through this setup screen:
Trigger setup |
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Trigger 1 | sense | PowerOn |
| Posit. | |
| No | |
| Infin. | |
Trigger 2 | sense | Vidsign |
| Negat. | |
| 15s | |
| 45s | |
Exit |
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Trigger sense defines the event or condition that you wish the C 1 to sense in order to generate a trigger voltage. A few examples are: the moment when the C 1 is turned on; activation of its display dimmer; the presence of a compos- ite video signal, an
Polarity does not change the trigger jack’s + output to – and vice versa, as its name implies. Rather, it selects whether the individual trigger output is normally off or normally on. When Polarity is set to “Posit.” the triggering event you selected will switch the trigger output from 0 to +12 volts; when set to “Negat.,” the triggering event switches the trigger output from +12 to 0 volts. Each trigger output can deliver up to 200 milliamperes (200 mA) of current.
Delay adjusts the delay between a triggering event and the actual trigger signal output. It can be set for “No” delay or for any of 14 delays, of 1 second to 3 minutes.
Duration controls the trigger signal’s duration. The trigger signal can be set to remain active as long as the triggering condition applies (“Infin.”) or to any of 16 periods from 10 milliseconds to 3 minutes. If duration is set to 10 ms or 100 ms, additional pulses of 10 ms and 100 ms are generated when the triggering event ends. This enables the C 1 to control devices that require separate
The third trigger, marked
Thanks to the flexibility of its three triggers, the C 1 can initiate and end a number of operations. For example: the
THX Audio Setup
THX Audio | setup |
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THX | EX | Enable | Automatic | |
Boundary | gain | comp. |
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THX | Ultra2 Sub | Yes | ||
Boundary | gain | comp. | On | |
ASA |
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Back | speakers | Together |
Exit
THX EX enable can be set to Auto or Manual. With Auto, the C 1 will automatically switch into THX Surround EX mode if the following conditions are met:
1.THX processing is switched on;
2.You are playing a Dolby Digital soundtrack that carries the digital “flag” that identifies it as carrying information for surround back speakers;
3.You selected Back speakers in “Speaker Setup/Size.”
If there is no EX flag, THX processing will default to THX
Cinema for 5.1- and
Boundary gain comp. (compensation) tames the excessive, boomy bass that can occur when listeners are near the back wall of home theaters whose subwoofers meet THX Ultra2 stan- dards or have flat anechoic response down to 20 Hz. If you have such a subwoofer, setting THX Ultra2 Sub to “Yes” gives you the option of turning this feature on or off (try listening to it both