Ampro Corporation DLP 5200 - Manual (Page 20)

18
5200 User’s Manual
Auto Search & Temp Channel
Auto Search
When a new source is introduced to the
projector, the projector will initially search
through the “user ” channel listing for a
match. If a match is found, this channel is
selected and the channel number is
displayed in the “Chan n, Select Channel”
command button located on the initial menu.
If no match is found in the “user” channel
listings, then auto-search will look through
the “factory ” read-only channel data for a
match. If a match is found, then this is
selected and the channel number displayed
in the “Chan n, Select Channel command
button is set to 0 (zero).
If no match is found in the factory channel
listing, then the projector will interpolate
between the next closest signal above and
below the current signal and establish a
temporary channel. Again, displaying 0
(zero) as the selected channel number.


User Channel List
The “user” channel list contains all user
established channels setups and some
common source setups from the factory.

Factory Channel List
The “factory” channel list is a read-only
listing that is originally created at the factory
and cannot be accessed directly by the
user. This list contains a variety (100+) of
common video and computer setups.


Temporary Channel
A temporary channel is denoted as a
channel that has either been copied from
the factory channel list or a new channel
created by system interpolation. A temp
channel is designated as Channel 0 (zero).
Auto Search Flow
Saving
Temporary
Channels
The temporary channel is never changed unless the user has changed at least one
parameter, i.e., Brightness, Contrast, H Pos etc.
Now assuming that at least one parameter has been changed, the temporary channel is
saved under either of the two following two circumstances;


At least 10 minutes has passed since the most recent change. This 10-minute timer is reset
every time a parameter change is made. If the temporary channel is saved under this condition,
a new channel is created and the projector is switched to this new channel. The new channel is
set to the next open channel number and is tagged with the horizontal and vertical frequencies.

A temporary channel is saved if any action is taken that causes a new or different channel to be
selected. This includes such actions as selecting a new channel manually, selecting a new source
manually, changing the input source so auto search forces a channel change, selecting this Help or
Edit Config, which both forces selection of the internal channel.
Search "user"
channel data
for match
Find
Match
Select match.
Display channel
number
YES
Search
"factory"
channel data
for match
NO
New Source
Select match.
Display channel
number "0"
(temp channel)
Find
Match
YES
Interpolate.
Establish
"temp"
channel.
NO