the projector stores and automatically recalls up to 50 different channels (source setups) for a variety of inputs. this memory feature allows you to define and conveniently use a wide variety of customized setups rather than having to repeatedly re-configure the projector for different presentations. depending on what you have defined, each physical source connection (i.e., input at the projector) can have several different channels associated with it.
do i select an input or a channel?
input–an input is a source physically connected at the projector. input describes the source signal according to which input slot it is connected.
switch to an input in either one of two ways – pressing the appropriate direct key — input 1 , input 2 , input 3 , input 4 , input 5 or input 6 — is a quick and seamless way to display from one of the six inputs connected at the side of the projector. or press input and enter the number (1, 2, 3, 4, 5, 6, 7 or 8) corresponding to the location of the desired signal (on-screen feedback is provided). with either method, the image will be displayed according to the following:
if it is the first time you have used the source/input (or if you used the input but did not define a channel by adjusting anything), the projector will recognize the new input signal based on its frequencies and polarities, and will automatically display an image according to default settings for such a signal. in general, the image from the new source will be as large as possible without losing its aspect ratio. this and other default image settings depend on the incoming source.
if you used the source once before and changed a display parameter such as contrast, v-position, etc., then a channel was automatically created and still exists in projector memory (see below). using an input key will automatically recall this channel—and all its setup parameters—and update the display accordingly.
if more than one channel exists for the input, the image will be displayed according to the setup parameters for the first channel with matching characteristics.
inputs 7 and 8 require the dual sd/hd-sdi module in either of the projector’s option slots. for their selection, see also 3.4, using the keypad.
shown at right is a sample channel list as would be available from chan . this is typically called the channel list.
the chan key may display a channel list or not, depending on what you have defined for “display channel list” (see menu preferences later in this section).
in order to access channels by using chan on the keypad, you must first create the channels. see below.
creating a new channel–automatic
to use a new source with the projector, a new channel must be added to projector memory so that the projector will respond properly to an input signal from that source in the future. a new channel can be created automatically, as described here, or it can be copied from an existing channel and then edited as necessary (see copying or deleting channels later in this section).
when you select a direct input (input 1 , input 2 , input 3 , input 4 , input 5 or input 6), the projector’sauto-source channels are searched for matching input and signal parameters. if no atch to the incoming input signal is found in currently-defined channels, a new channel is temporarily created based on factory-defined defaults for this type of signal. the channel number assigned is the lowest available number from 01-50.
1) an automatic channel will be discarded unless one or more of its parameters are changed, and will not appear in the channel list (see below). 2) if two channels have the same distinguishing source characteristics except for the reversal of sync connectors (i.e., h-sync and v-sync, are switched), they are still defined as distinct channels. 3) you cannot define a new channel without an incoming signal.
if the incoming signal does match an existing channel, the image will be set up and displayed as usual according to the parameters currently defined for that channel.
using a channel: you can normally select a channel at any time by pressing chan (see right). if you want to prevent a channel from appearing in this list, you must edit the channel as described in channel edit later in this
section. such a channel can still be selected by entering its number as shown at right.
1) the current channel is highlighted upon entering the channel list, or, if this channel is not displayed here, the first channel in the list is highlighted. 2)channels created automatically do not appear in the channel list unless a parameter for the channel has been changed.
what channels are defined so far?
all available channels are listed in the channel setup menu, which describes how each channel can be accessed and which serves as the gateway for editing, copying and deleting channels.
what appears in channel setup menu? this menu lists all channels defined so far and indicates where they connect on the projector’s side input panel. the far left column lists channel numbers currently defined. the values in the far right columns indicate horizontal and vertical frequencies—if someone has defined a name for this channel, it appears here instead. remaining columns contain details pertaining to each channel setup, such as its switcher number (always 0=projector), slot location (01-08), a variety of icons indicating access to each channel, and an abbreviated description of each signal type. see editing a channel setup for details.
signal type — either channel list, whether the chan key list or the channel setup menu, identifies signal types in a shortened form as defined below. these descriptors indicate what signal information the projector uses to identify a match for a given channel, and are preceded by either an “i” (interlaced signals) or “p” (progressive signal“). see table 3.2.
functions within the channel setup menu —to copy, delete or edit a channel, highlight the desired channel in the channel setup menu and do one of two things:
press func if you want to copy the selected channel or delete this or other channels. see copying or deleting a channel below.
press enter if you want to edit channel setups (i.e., non-image related parameters) for the selected channel. see editing a channel setup, below.
copying or deleting channels
to copy a channel, highlight the desired channel in the channel setup menu, then press func to go to the channel copy/delete submenu. select “copy” and press enter —a new channel will be created. it is identical to original, which still remains, but it is identified with the next available number from 01-50. if you change your mind and do not want to copy the current channel, press exit to cancel and return to the previous menu. copying channels is a quick method for creating numerous channels, each of which can then be edited and adjusted for a variety of presentations in the future.
to delete a channel, highlight the desired channel in the channel setup menu, then press func to activate the channel copy/delete submenu. select “delete” and press enter —a confirmation window will appear to make sure that you really want to delete this channel.
to delete multiple channels, highlight any channel in the channel setup menu and press func to go to the channel copy/delete submenu. select “delete unlocked only” and press enter to delete all unlocked channels. or select “delete all channels”to delete all channels, even those that are locked. in either case, the current channel will remain but will be redefined from projector defaults.
for any deletion, a confirmation box appears to make sure that you really want to delete. select “cancel” (default) if you don’t want to delete after all.
editing a channel setup
the basic setups that describe how and where a channel can be accessed are listed in the channel setup menu. these channel setups can be edited at any time in the channel edit submenu.
channel edit—step 1
channel edit—step 2
to edit parameters shown in the channel setup menu, select the relevant channel and press enter . the channel edit menu will appear similar to the sample shown in figure 3.12.
channel edit—step 3
if desired, review and/or edit the following channel setups in the channel edit menu:
channel name: an alpha-numeric label can be defined and/or changed here. channel names can be up to 12 characters in length.
channel number: a 2-digit channel number can be changed here.
1) if you enter a channel number that already exists, a dialog message appears indicating that this number is already in use–assign a different channel number. 2) you can define up to 50 channels.
input: 1-8, corresponding to where on the projector’s input panel the source is connected.
in menu: if checked (default, except for automatically defined channels with unchanged parameters), this defined channel will then appear in the list available when chan key is pressed. if unchecked, the channel must be accessed via chan on the keypad or via the auto source function. note: on-screen display of the channel list is an option that must be set in the menu preferences menu.
auto source: if checked, (default), the projector can automatically locate this channel when an incoming input signal matches. if not checked, the projector can locate the selected channel only when it is directly selected via chan on the keypad—and a change in input signal will not result in a channel change.
locked: if checked, all of the image settings for this channel are disabled. if unchecked (default), all available image settings can be adjusted as desired. you cannot use auto setup with a locked channel.
previous channel: select this option to see or change channel edit settings for the previous channel in the channel setup list.
next channel: select this option to see or change channel edit settings for the next channel in the channel setup list.