 |
 |
 |
|
|
|
|
Installment Four: "A Tour of the Marquee CRT Chassis: Utilities Menu" |
|
|
|
|
|
These menus provide access to many useful features required for
initial setup, and ongoing maintenance, to keep the image quality at the
highest level. Features deemed Technician Only are passcode protected; the
Utility menu (see PIC 1) reads as follows: |
|
|
UTIL, 1 Source Setup (see PIC 2) |
|
|
|
|
|
|
|
|
| UTIL, 1, 1 |
Copy Setup: An installer or user can copy all parameters from a
previously aligned memory to another Input or recall memory as a
starting point to save time. (see PIC 3) A typical use might be to
take a memory set up for a scaler or HTPC aligned for a 1.78:1 aspect
ratio DVD and copy it to another recall intended for use when viewing
2.35:1 aspect DVDs; the primary differences being raster height and
perhaps subtle geometry changes like side pincushion. The user enters
the Copy From info and Copy To info and then presses Enter to complete
the copy of parameters. The Copy To memory cannot be locked or you get a
Copy Failed message on screen. (see PIC 4) To unlock a locked memory you
must pull up that memory and key in UTIL, 1, 3. If unsure if a memory is
locked, pull up the memory and push the Source button; a locked memory
will display source info and a Key icon, unlocked memories do not display
the Key (see PIC 5 and PIC 6). |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| UTIL, 1, 2 |
ASI with Save: This permits instant creation of parameters for a new
signal not yet in any setup memory, done by taking averages of existing
parameters with lower and higher scan rates. Acronym "ASI" is short for
Auto Source Interpolation, which is a function under the ASR or Auto Source
Recall feature. ASR, if switched On for a given input; pulls up setup
memories that are priorly established by matching the incoming scan rates
to those held in memory. Established memories can be viewed on-screen by
selecting UTIL, 3 or UTIL, 4.(see PIC 7 and PIC 8) Memories with a check
mark next to them in these readouts are the last memory for those scan rates
that saw a user adjustment; ASR will only select those with checks. These
features do not offer much usefulness in an HT situation where many signals
may all have the same horizontal and vertical scan rates, and different
aspect ratios. With ASR on, the user cannot even force the system to
another memory using the same scan rates; the feature works against the
intent of the user and is best left off. |
|
|
|
|
|
|
|
|
|
|
|
|
|
| UTIL, 1, 3 |
Current Setup Locked/Unlocked: This feature blocks or permits permanent
changes to parameters in the memory currently being used. Any changes made
to a locked memory are dumped when switching away to another memory or if
powering down. |
|
|
|
|
|
|
|
| UTIL, 1, 4 |
ASR On/Off: This toggle enables or disables ASR and ASI as discussed above,
and is selectable per input port, not globally. |
|
|
|
|
|
|
|
| UTIL, 1, 5 |
Clear Current Setup: The user may reset the memory currently being used
back to defaults if it is not locked. |
|
|
|
|
|
|
|
| UTIL, 1, 6 |
Select Internal Frequency: The user may select from a menu (see PIC 9) any
of six scan rates from a signal generator internal to the Marquee; this is useful
in roughing in setups when the signal is unavailable, or in projector or source
troubleshooting. If the Marquee can lock to an Internal Frequency but not an
external source then a technician may need to check cables and sources instead
of the Marquee chassis. |
|
|
|
|
|
|
|
|
|
|
| UTIL, 2 |
Channel List: The user may program Input Ports, Recallable Memories if
needed, and source or signal names into a table that then allows the user
to select from the table with one or two keypad presses, or by pushing
Source, Up; a fast way to select sources and setup memories. (see PIC 10) |
|
|
|
|
|
|
|
|
|
|
|
|
|
| UTIL, 3 |
Recall Memories: A readout of priorly established Recall Memories and
the horizontal and vertical frequencies of those signals. |
|
|
|
|
|
|
|
| UTIL, 4 |
Input Memories: A readout of priorly establish memories that are
dedicated to the RGBHV and Decoder (if installed) ports; each port has
one dedicated memory, that memory is often replaced by a Recall Memory
when one signal source needs multiple setups to accomodate different
aspect ratios or scan rates. |
|
|
|
|
|
|
|
| UTIL, 5 |
Preferences: The user can select to enable or disable (see PIC 11)
features such as Auto Powerup, which restarts the projector if AC power
is interrupted; Screen Messages On/Off, which disables the Source,
Contrast, Brightness and other OSD's while still permitting adjustments of
those settings. If the user presses Recall then Contrast, the on-screen
display is enabled for that adjustment only, then is disabled again. Other
selections available in Preferences include selection of image blanking
time when switching sources; Channel Select using one or two digits; OSD
languages which include English, French, Italian and German; and
Programmable Events. |
|
|
|
|
|
|
|
|
|
|
|
|
|
| UTIL, 6 |
Remote Control Options: (see PIC 12) The user or installer call select
IR sensor On or Off as well as the IR Protocol A or B (language)
(see PIC 13) which is useful in rooms having several Marquee projectors
which must be communicated with individually. A user may also set a unique
three-digit address (see PIC 14) for any Marquee to enable keypad
communication with that projector only. To read out a projector's address
push the PROJ key. If two projectors have unique addresses 000 and 111,
the user may key in "PROJ 000" by IR keypad so that the IR is read by both;
the projector not having address 000 will have IR reception disabled until
it sees either PROJ 111 or PROJ * transmitted. In home theater situations
this feature is rarely employed unless two Marquees are stacked onto one screen.
Note that if your Marquee suddenly stops receiving IR commands then someone may have
de-selected it using a command of PROJ and some digits; push PROJ * to resume IR useage,
or check for weak batteries in the IR keypad, or an obstruction of the IR sensor, which
is located on the front of the Marquee next to the red lens. |
|
|
|
|
|
|
|
|
|
|
|
|
|
| UTIL, 7 |
Clock/Events: The Marquee may be programmed to turn on each day, shut off at
night, and perform housekeeping functions like AutoConvergence; mostly used in
commercial environments. |
|
|
|
|
|
|
|
| UTIL, 8 |
-------- Nothing to select, reserved for future use. |
|
|
|
|
|
|
|
| UTIL, 9 |
Service: An array of alignments for installation and maintenance (see PIC 15),
passcode protected (passcode is "0901"), for technicians and advanced end
users. The Service Menu selections and their alignments will be the subject
of our next Article. |
|
|
|
|
|
|
|
|
|
|
|
|
|
Our Marquee Chassis Tour will be continued in the next installment. |
|
|
|
|
|
Tim at E-Tech Systems Phoenix |
|
|
