Crystal Vision ViPA204 User manual

Crystal Vision Ltd., Lion Technology Park, Station Road East, Whittlesford, Cambridge, CB22 4WL, England.
E-mail: [email protected] Website: www.crystalvision.tv Tel: [phone] Fax: [phone]
ViPA204
Video proc-amp

VIPA204 User Manual V1.0 Crystal Vision
26/09/05
Contents
1 Introduction 3
Processing modes 4
Soft limiting 5
2 Installing Statesman 6
2.1 Installation 6
2.2 Statesman operation 7
Controlling luminance levels 7
Controlling chrominance levels 8
Controlling U levels 10
Controlling V levels 10
Adjusting picture timing and crop 11
Presets and Engineering 12
3 Using the active control panel 14
3.1 Module selected 14
3.2 The ViPA204 active panel menu structure 16
3.3 Component processing 17
3.4 Timing 20
3.5 Miscellaneous 21
4 Installation 22
4.1 Rear module and signal I/O 22
4.2 ViPA204 configuration 23
Setting node addresses 23

VIPA204 User Manual V1.0 Crystal Vision
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5 Problem solving 24
6 Specification 26

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1 Introduction
ViPA204 is a dual channel 10 bit video proc-amp allowing flexible independent
adjustments of a digital signal image in the YUV colour space, essential for correcting
transmission errors and colour space or A to D conversion errors.
ViPA204 passes all ancillary data, including embedded audio, transparently. Sixteen
memories are provided to store user-defined adjustments and there is GPI output
indication of YUV clipping. Control options include active frame front panel, remote
panel and the Statesman PC Control System.
ViPA204 10-bit processing amplifier
The main features are as follows:
•Digital processing amplifier
•Upto 24 channels available in an Indigo 4 frame
•Allows independent digital image adjustments in YUV domain
•Tools to adjust level, gain, soft clipping and timing

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•All limiting has adjustable softness
•Enforces CCIR601 dynamic range specification
•Bypass control
•Passes ancillary information
•Sixteen user memories
•EDH generation
•Flexible control
The ViPA204 has 2 channels both with one input and two outputs, The single channel
ViPA102 is also available.
Both versions are based on a 100mm x 266mm module, which fits in the three standard
frames and can be integrated with any boards from the company’s full product range. It
uses the RM01 rear connector.
Processing modes
Processing modes are as follows:
•Advance/retard Y/C offset delay in 148ns steps
•Advance/retard overall horizontal delay (74ns increments)
•Correct for NTSC colour shift (Hue) errors on the U and V channels
•Increase/decrease Y, U and V channel lift and gain independently
•Set and soft limit Y, U, and V channel positive (Hi) and negative (Lo)
excursions independently
•Set horizontal and vertical active picture area cropping region on final output
Independent YUV adjustable soft clipping ensure colours do not overrun the CCIR601
specification by forcing the picture to remain within the valid dynamic signal range whilst
avoiding picture artefacts caused by hard clipping.
The adjustable horizontal and vertical cropping may be used to clean up picture edges.
For example, the vertical crop can be used to remove widescreen-signalling information
now part of the active picture following aspect ratio conversion.
If no correction is required processing is completely transparent, preserving signal
integrity.

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Soft limiting
Soft limiting or clipping is provided by a combination of adjustable threshold and slope
controls. The luminance channel has both high and low limiting, whilst UV channels have
one clipping control for each colour component.
ViPA soft limiting

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2 Installing Statesman
The Crystal Vision Statesman PC control software is designed to control a range of
Crystal Vision modules via serial control from a PC. Statesman provides a user friendly
means of configuring and operating the ViPA204 with the benefit of see-at-a-glance
status monitoring. Most functions can be accessed from Statesman menus.
The main Statesman application communicates with each module in a frame through an
active control panel. An active panel must be fitted to allow for Statesman control.
2.1 Installation
Minimum pre-requisites:
•A PC running Windows 98, NT4 with SP 5 or higher Windows 2000 or
Windows XP
•A parallel port dongle supplied with the Statesman software package
•An RS422 serial connection from the host PC to the Remote 2 connector on an
FR1AV or FR2AV Crystal Vision frame with at least one ViPA102 module
and/or other Statesman compatible module
•An active control panel MUST be fitted to the frame with version 1.50 or above
firmware
•An optional RS422 to RS232 converter if the PC has no RS422 ports
Installing Statesman
•Refer to the readme and/or help file on the CD before proceeding
•To view all application windows, set graphics resolution to at least 1024 x 768
•Remove any previous version of the Statesman software using the Add/Remove
Programs application in the Windows Control Panel
•Ensure that the Statesman dongle is fitted to the parallel port of the host PC
•Insert the Statesman CD and the installation should start immediately – if it
does not, run the setup.exe file on the CD
•Obey any installation program prompts and restart the PC when prompted
Running Statesman for the first time
The Statesman PC Control System may be run from the Crystal Vision programs folder
via the Start menu or by double-clicking on the Crystal Vision.exe file in the installed
program directory.
When the program runs it should automatically detect any statesman compatible modules
in the connected frame or frames and display them in the main application left hand
explorer-style window.
Open any frame by clicking on the ‘+’ sign or by double clicking on a frame. Installed
modules should be shown with module icons. Frame and module icons can be named as
desired by right-clicking or using the edit menu.

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2.2 Statesman operation
The initial view will show an explorer style view of the connected frames and modules.
Double-click on a module to display the main application control panes.
Statesman main application window. Note all panes are duplicated for both Ch1 & Ch2
The two control panes may display different menus for the same card, or controls for
different cards. Click on the horizontal button-bar between the two panes to close the
lower plane or drag the button to vary the size of the panes.
The two panes allow dual-control display of two menus such as Luminance and
Chrominance controls or U and V controls.
Associated controls such as U and V may be ganged together by right-clicking on them to
associate them. Moving the last selected control should then move all associated controls.
Controlling luminance levels
The Y Levels menu provides access to Y Gain, Y Lift, Y Hi Threshold, Y Hi Slope, Y Lo
Threshold and Y Lo Slope controls.

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The Y level control ranges and default values are as follows:
Y controls Min Default Max
Y Gain 0100200
Y Lift -512 0 512
Y Hi Threshold 768 940 1019
Y Hi Slope 0255255
Y Lo Threshold 463255
Y Lo Slope 0255255
Default values can easily be entered by clicking on individual Cal buttons or by clicking
on the Cal Page button to enter default values for all controls.
The Input Present, Input line standard and Clipping warning indicators are shown on the
right of the menu.
Controlling chrominance levels
The Chroma Levels menu provides access to C Gain, C Lift, C Threshold and C Slope.
Chroma level controls
The Chroma level control ranges and default values are as follows:

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C controls Min Default Max
C Gain 0100200
C Lift -512 0 512
C Threshold 768 960 1019
C Slope 0255255
Hue -30 0 30
Default values can easily be entered by clicking on individual Cal buttons or by clicking
on the Cal Page button to enter default values for all controls.
The Input Present and Clipping warning indicators are shown on the right of the menu.

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Controlling U levels
The U Levels menu provides access to U Gain, U Lift, U Threshold, and U Slope
controls.
U level controls
The U level control ranges and default values are as follows:
U controls Min Default Max
U Gain 0100200
U Lift -512 0 512
U Threshold 768 960 1019
U Slope 0255255
Default values can easily be entered by clicking on individual Cal buttons or by clicking
on the Cal Page button to enter default values for all controls.
The Input Present and Clipping warning indicators are shown on the right of the menu.
Controlling V levels
The V Levels menu provides access to V Gain, V Lift, V Threshold, and V Slope
controls.

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The V level control ranges and default values are as follows:
V controls Min Default Max
V Gain 0100200
V Lift -512 0 512
V Threshold 768 960 1019
V Slope 0255255
Default values can easily be entered by clicking on individual Cal buttons or by clicking
on the Cal Page button to enter default values for all controls.
The Input Present and Clipping warning indicators are shown on the right of the menu.
Adjusting picture timing and crop
The picture crop menu provides access to the H Crop Start, H Crop End, V Crop Start, V
Crop End, H Delay and Y/C offset controls.
Timing and Picture crop controls
The Picture Crop control ranges and default values are as follows:

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Crop controls Min Default Max
H Crop Start 00723
H Crop End 0723723
V Crop Start - 625 22 22 312
V Crop End - 625 22 312 312
V Crop Start - 525 20 20 265
V Crop End - 525 20 265 265
The Delay control ranges and default values are as follows:
Delay controls Min Default Max
H Delay -128 0 128
Y/C Delay -128 0 128
Default values can easily be entered by clicking on individual Cal buttons or by clicking
on the Cal Page button to enter default values for all controls.
Presets and Engineering
The presets menu allows up to 16 card configurations for each channel to be stored as
recallable presets.
Presets and Engineering controls
It is strongly recommended to uncheck the Enable GPI Preset recall, to prevent
inadvertent GPI recall whilst using this menu.

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EDH generation
To enable EDH generation place a tick in the EDH On check box.
Board bypass
The entire YUV processing may be bypassed, creating in effect a simple one in, two out
SDI distribution amplifier, by clicking in the Board Bypass check box.
Factory reset
The factory reset can be applied to both channels of the ViPA204 module individually,
restoring the factory defaults to all parameters. This is a convenient way to re-initialise
the board in the unlikely event of any suspected malfunction.

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3 Using the active control panel
3.1 Module selected
This operational guide assumes that the panel has been setup according to the Panel setup
procedure described in the Crystal Vision Control Panel manual.
Note: It is ESSENTIAL that the Panel setup procedure is followed and any old or unknown
passwords cleared prior to using the panel for the first time.
At power up, the two line 20-character screen will display ‘Crystal Vision’ followed by
the firmware version number for the control panel. All eight control panel keys LEDs will
illuminate.
The Crystal Vision control panel start up display
'Control Panel' then briefly replaces the version number display.
If the control panel firmware has been updated for Statesman control (version 1.5.0 or
higher), Statesman Mode will be entered and the message, ‘Press CAL to Exit’ will be
displayed and the CAL LED will light.
Statesman mode is entered by default
To continue with control panel operation or configuration, press the CAL key once. A second press of
the CAL key will return to Statesman control.
The control panel will display the name of the card that first responds to the polling
request together with its location number.
The location number consists of the frame number plus the card position in the frame.

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Navigating the display
The functions assigned to control panel keys are:
•DEVICE – enters Device menu to select a card or show cards available / enters Panel setup when
held down during power up / shows frame status when pressed from Statesman mode
•CAL – enters or leaves Statesman mode / enters panel diagnostics mode when held down during
power up / updates the display
•Asterisk – enters board rename menu from the Device menu
•F1 to F4 – soft keys, function assigned within each menu
•HOME – moves the display to the home menu
•ENTER – accept current selection
•Upward arrow – used to move up the menu structure / enter lock panel menu from the Device
menu
•Rotary control – shaft encoder used to select options or variable data
Note: Please refer to the Crystal Vision Control Panel manual for details of the Panel Setup, Lock Panel
and Diagnostic menus.
Selecting VIPA204
To select a particular card in a frame, press the DEVICE key to go to the Device menu. The top line of
the display will show ‘Available Cards X’, where X is the number of cards that have responded so far
to the polling request.
The available cards menu
Rotate the shaft encoder and the bottom row will display the successfully polled cards by name and
location or slot number.
In the example above, the card displayed is located in the first frame in slot number 3.
When the desired card is selected press the ENTER key to access that card’s HOME menu.
The message shows that a ViPa204 has been selected with the version of software fitted as V1.40.
The ViPa204 home menu

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Updating the display
The values displayed on an active front panel are only updated when an adjustment is
made and when changing menu level. If mode changes occur through the use of
Statesman, card edge controls or through automatic response to the input video signal, the
text displayed on the active front panel will not be updated immediately. If necessary,
press CAL to update the display.
Note: Function keys and shaft encoder LEDs are illuminated when active.
Menus or function keys associated with the shaft encoder for changing assigned values
are shown with a black circle.
3.2 The ViPA204 active panel menu structure
Menu numbering scheme
This manual uses a simple menu numbering convention based on the sequence of keys
required to reach each menu from the top level home menu. For example, menu 1.1.2 is
reached from the home menu by pressing F1, then F2. Menu 1.2.3 is reached by pressing
F2 and then F3.
. Both channels have an identical structure so only Channel 1 is shown here.
The ViPa204 home menu
The main top-level menus for the ViPa204 module are obtained by pressing the F1, F3
and F4 keys from the HOME menu. Menu keys are illuminated when active and when
further menus are available.
The following chart shows the available menus.

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The ViPA204 Channel 1 menu tree, (channel 2 identicale).
3.3 Component processing
Pressing F1 from the home menu will bring up the component Select menu. This menu
provides access to Gain, Lift, Threshold and Slope parameters for Luminance (Y),
Chrominance (C), and the Pb (U) and Pr(V) colour difference components of the
incoming SDI signal.
ViPA102 Component Select menu Provides access to the following sub-menus:
Y (Luminance) Menu – press F1
C (Chrominance) Menu – press F2
U (Pb) Menu – press F3
V (Pr) Menu – press F4
Press F1 from Component Select menu 1.1 and then rotate the shaft encoder to access the
Y processing menus. Press the ENTER key when the chosen menu is displayed to enter
data-entry mode. Press ENTER again to leave the data-entry mode and continue
navigating the available menus.
Note: It may be necessary to press the ENTER key when first navigating the available menus.

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ViPA102 Y menu Description
Set Y gain from 0 to 200 – default/unity gain: 100
F1:Save, F2: Undo, F3: Cal (default value)
Set Y Lift from -512 to 512 – default is: 0
F1:Save, F2: Undo, F3: Cal (default value)
Set Y Threshold Hi from 768 to 1019 – default is: 940
F1:Save, F2: Undo, F3: Cal (default value)
Set Y Slope Hi from 255 to 0 – default is: 255
F1:Save, F2: Undo, F3: Cal (default value)
Set Y Threshold Lo from 4 to 255 – default is: 63
F1:Save, F2: Undo, F3: Cal (default value)
Set Y Slope Lo from 255 to 0 – default is: 255
F1:Save, F2: Undo, F3: Cal (default value)
Press F2 from Component Select menu 1.1 and then rotate the shaft encoder to access the C processing
menus. Press the ENTER key when the chosen menu is displayed to enter data-entry mode. Press
ENTER again to leave the data-entry mode and continue navigating the available menus.
ViPA102 C menu Description
Set C gain from 0 to 200 – default/unity gain: 100
F1:Save, F2: Undo, F3: Cal (default value)
Set C Lift from -512 to 512 – default is: 0
F1:Save, F2: Undo, F3: Cal (default value)
Set C Threshold from 768 to 1019 – default is: 960
F1:Save, F2: Undo, F3: Cal (default value)
Set C Slope from 255 to 0 – default is: 255
F1:Save, F2: Undo, F3: Cal (default value)
Set C Hue from -30 to 30 – default is: 0
F1:Save, F2: Undo, F3: Cal (default value)

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Press F3 from Component Select menu 1.1 and then rotate the shaft encoder to access the
U processing menus. Press the ENTER key when the chosen menu is displayed to enter
data-entry mode. Press ENTER again to leave the data-entry mode and continue
navigating the available menus.
ViPA102 U menu Description
Set U gain from 0 to 200 – default/unity gain: 100
F1:Save, F2: Undo, F3: Cal (default value)
Set U Lift from -512 to 512 – default is: 0
F1:Save, F2: Undo, F3: Cal (default value)
Set U Threshold from 768 to 1019 – default is: 960
F1:Save, F2: Undo, F3: Cal (default value)
Set U Slope from 255 to 0 – default is: 255
F1:Save, F2: Undo, F3: Cal (default value)
Press F4 from Component Select menu 1.1 and then rotate the shaft encoder to access the
V processing menus. Press the ENTER key when the chosen menu is displayed to enter
data-entry mode. Press ENTER again to leave the data-entry mode and continue
navigating the available menus.
ViPA102 V menu Description
Set V gain from 0 to 200 – default/unity gain: 100
F1:Save, F2: Undo, F3: Cal (default value)
Set V Lift from -512 to 512 – default is: 0
F1:Save, F2: Undo, F3: Cal (default value)
Set V Threshold from 768 to 1019 – default is: 960
F1:Save, F2: Undo, F3: Cal (default value)
Set V Slope from 255 to 0 – default is: 255
F1:Save, F2: Undo, F3: Cal (default value)