VISTEK V1682, Инструкция по установке и эксплуатации

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1 March, 2005 V1682OPMA.doc Page 13 of 32
3.1.3 Menu Examples
This section has examples of how to manoeuvre through the menu system. The first one starts with
the unit in its ‘sleep’ mode where the display is blank, and then proceeds to set the output
Multiplexer to use group 2. The sequence assumes that audio channels are ganged.
Action Display Comments
Start in ‘sleep’ mode
Select
VALID RD
Top Level
Select
MEASURE
First Main Menu
▼
AUDIO
The menu we want
Select
Aud I/P
▼
Mux Grp
The control we want
Select
None
Default (or last setting)
▼
Mux Gp 1
▼
Mux Gp 2
Audio embedding on group 2
Hold
Mux Grp
Up to control selection
Hold
AUDIO
Up to Menu selection
Hold
VALID RD
Up to top level
Hold Sleep
3.1.4 Sleep
If the front panel is not used for a certain amount of time then the display will automatically go into a
sleep mode when it will be blank. Pressing any of the buttons will cause it to ‘wake up’ back into the
top level. The time delay before the unit slips into sleep mode can be set up using the
ENG’ING > Sleep
menu.
3.1.5 High Level Signal Status
There are two LEDs on the top of the front panel to indicate that the SDI input is present, and that
the unit is set up to generate a ‘VALID’ test signal. However there is no direct indication as to the
format the SDI input, i.e. 625/50 or 525/60. Since many installations may use multiple formats and
therefore need a quick indication there are parallel menus with the Top Level.
If you press the
τ
button from the Top Level then you will see the SDI status directly. This will show
the signal presence and if it is there then what format it is.
The audio/video delay can also be read on the top level, as well as any source errors that are
present. Use the
σ
and
τ
buttons to select the channel of interest. This will be described more in
Section 4.5
These indications are still at the Top Level, so a single press of the Select button will immediately
move down the menu tree.
3.1.6 Variable Calibration
Most variables have a calibrated or normalised value. In the listing of all the variables in Section 11
the normalised value is shown.
Any variable can be individually set to its normalised value by pressing the
σ
and
τ
buttons at the
same time.
Within each the Main Menu at the end of the list of Sub Menus is a pseudo Sub Menu called
Norm
.
Selecting into this will let you normalise all the parameters within the Main Menu item to their
normalised value.
The three LEDs beside the
σ
and
τ
buttons are used to show whether the variable is calibrated or
not. After calibration the
CAL
LED will be ON.