OPERATION
3-26
DLV 1280 User's Manual
NOTE: If you are using the “List” option when using the
key, the list will
always appear regardless of how Src Dialog is set.
Auto Power-Up
If “
On
”, the projector will automatically power up after a power failure. During
an auto-power up, a delay of “last digit of proj# x 500ms” is added to the power
up time, ensuring that a wall of projectors will power up in sequence rather than
all at once. NOTE: Unsaved display adjustments may be lost.
Front IR and Rear IR
DLV 1280 IR remote keypads are capable of sending data to the projector in
either one of two protocols called “A” or “B”. Likewise, the front and rear IR
sensors on the projector can be set to accept IR data accordingly, responding to
A, B, both, or neither protocol. The “A or B” option is adequate for most single-
projector installations. Selecting a specific protocol prevents interference when
you are controlling two projectors in the same room, allowing you to work with a
single projector without affecting the other.
Note that the front and rear IR sensors cannot respond to different protocols—if
you set
Front IR
to “
B
”, the
Rear IR
will automatically be set to “
B
” as well.
However, an IR sensor can be turned off independently. If you want to prevent
one of the IR sensors from responding, set it to “
Off
” — the other IR sensor
setting will remain as it is.
If you want to disable both IR sensors, you cannot use the IR remote keypad to
select the second “
Off
” setting. This safeguard prevents accidentally disabling the
IR keypad while you are using it. Instead, use either the built-in keypad or the
wired remote keypad to set the remaining active sensor to “
Off
”. The projector
will no longer respond to an IR remote keypad.
See 2.10, Keypad Protocols for further information about changing your keypad.
NOTE: DLV 1280 CR includes a front IR sensor only.
Wired Keypad
Like the IR remote keypad, a DLV 1280 wired keypad (optional) is either a
“Protocol A” keypad (the original setting at manufacture) or a “Protocol B”
keypad. You can set the projector to respond to only one of these protocols, or
you can ensure that the projector responds to either protocol. You can also
prevent the projector from responding to the wired keypad at all.
ADDING A PROTOCOL:
To add a protocol, select the “
A or B
” option in the
Wired
Keypad
list—the projector will now respond to either protocol.
CHANGING A PROTOCOL:
As a safeguard, you cannot accidentally select any
option in the
Wired Keypad
list that would disable the wired keypad during use.
In other words, you cannot switch to the opposite protocol or select “
Off
” using
the wired keypad. Instead, if you want to quickly change to the other protocol,
you may find it more convenient to use one of the other keypads (the built-in or
the IR remote) to execute the protocol change. The projector will now recognize
only the opposing wired keypad protocol. Or, if you prefer, use the wired keypad
to safely change its own protocol:
