Crystal Vision DEC102S 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: +44(0) 1223 497049 Fax: +44(0) 1223 497059

DEC102S

Composite or Y/C to SDI decoder

DEC102SUser ManualV1.0 Crystal Vision

1DEC102SUser ManualV1.0 05/11/03

Contents

1 Introduction 3

Operating modes 4

Output timing 4

Audio follow pulse 4

Manual scope 4

2Statesman 5

2.1 Installing Statesman 5

2.2 Statesman operation 6

Configuration 7

Gain, black level and phase adjustment 9

Timing adjustment 10

3 Using the front control panel 13

The DEC102S menu structure 16

Selecting video standard and decoder modes 17

Setting gain and black level 19

Adjusting signal timing 21

4 Card edge operation 23

Card edge controls 23

Displaying module type and firmware 23

Setting video standard and decoder options 24

Setting gain and black level 26

Adjusting signal timing 27

Setting 525 (NTSC) Setup 29

Restoring factory defaults 29

DEC102SUser ManualV1.0 Crystal Vision

2DEC102SUser ManualV1.0 05/11/03

5 Hardware installation 31

5.1 Rear modules and signal I/O 31

RM01 31

RM02 32

RM18 33

5.2 FR1-6, FR2-12 and FR2-8 frame rear connectors 34

FR1-6 & FR2-12 connections 34

FR2-8 connections 34

5.3 Module configuration 35

Loop or terminate the external reference 35

Card-edge control - video standard and 8/10 bit jumper location 35

Setting node addresses 36

6 Trouble shooting 37

Card edge monitoring 37

Fault finding guide 37

7 Specification 39

Crystal Vision Introduction

3DEC102SUser ManualV1.0 05/11/03

1 Introduction

The DEC102S is an analogue composite or Y/C to serial digital video decoder. It contains

a 10-bit synchroniser allowing the serial digital output to be timed to an analogue

reference.

Two main operating modes are supported, 10-bit for professional quality PAL or NTSC

video and 8-bit for less stable PAL or NTSC video, as is often the case with VHS or

satellite feeds.

The decoder is fitted with a line based adaptive comb. It is also designed to accommodate

jittery or damaged signals and will automatically switch to its tolerant 8-bit decoder mode

when a non-stable signal is received.

The main features are as follows:

•compact single height module

•converts any composite or Y/C signal to SDI

•frame synchroniser

•10-bit adaptive comb plus 8-bit input modes

•automatic or manual PAL/NTSC standard selection

•adjustable timing, gain and black level

•audio follow pulse for audio to video delay tracking

•loop or terminate external analogue video reference input

•card edge, Statesman and remote control facilities

The DEC102S analogue composite or Y/C to serial digital video decoder

Crystal Vision Introduction

4DEC102SUser ManualV1.0 05/11/03

The DEC102S is a 100mm x 266mm module, which fits in the all standard frames and

can be integrated with any boards from the company’s full product range. It uses the

single height RM01, double height RM18 and triple height RM02 rear connectors in

Indigo and other Crystal Vision frames.

Operating modes

To provide optimum performance with a wide range of sources the DEC102S can operate

in a number of different modes.

10-bit input modes Description

10-bit Comb PAL/NTSC

composite

Uses a line-based comb decoder, which mixes to simple decoder

when the comb would produce artefacts.

10-bit Y/C (S-video) Suitable for use with well-timed sources.

8-bit composite

8-bit Y/C (S-video)

All 8-bit modes use a robust simple decoder. These highly tolerant

modes are particularly suitable for use with poorly timed sources

such as VHS recorders or satellite feeds.

Each operating mode has its own luminance and chrominance gain, offset and phase

settings and both 525 and 625 line standards have separate horizontal and vertical timing

settings. All these parameters are automatically maintained when power is cycled.

Output timing

Horizontal and vertical timing adjustments are provided that operate relative to one of

three analogue timing references. These are an external reference, the video input or an

internal free-running clock. The external reference can be video or composite syncs

although a composite black and burst plus 300mV syncs into 75 Ohm as per EBU N14-

1988 is preferred.

If no analogue reference is provided the board will either time itself relative to the

composite or Y/C video input in 10 bit modes, or it will time its output to a free running

clock in 8 bit modes.

A horizontal offset delay adjustment varies the timing of the input video relative to input

syncs and blanking in 10-bit mode whichever source is the active reference.

Audio follow pulse

To allow an audio delay to track the delay through the DEC102S, a TTL level pulse is

provided. This pulse is output every frame. The length of the pulse (the time between the

rising and falling edge) is the same as the delay through the synchroniser.

Manual scope

This manual refers to module firmware version 6.86 or later.

Crystal Vision Statesman

5DEC102SUser ManualV1.0 05/11/03

2 Statesman

The Crystal Vision Statesman PC control software is designed to control a range of

Crystal Vision modules via serial control from a PC.

The main Statesman application communicates with each module in a frame through an

active control panel with or without an LCD display. Statesman will not be able to detect

modules used in a frame with only a passive front panel.

2.1 Installing Statesman

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 DEC102S module

and/or other Statesman compatible module

•An active control panel MUST be fitted to the frame with version 1.63 or above

firmware – if it is an Indigo frame the firmware must be V1.04 or above

•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 will require licence information and an administrator name and

password. It will also need to know which computer port is being used to connect to a

Crystal Vision frame(s).

Note: For further details of Statesman configuration please refer to the Statesman manual.

Crystal Vision Statesman

6DEC102SUser ManualV1.0 05/11/03

2.2 Statesman operation

Once Statesman is configured 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 and choosing rename.

To aid user recognition of module and frame status quickly, the following colour and size

coding is used:

•A module is shown present by full colour and absent by greyed colour

•A module is shown open by large icon size and closed by small icon

•A module is the source of an active alarm if red and not alarmed if green

Double-clicking on a module will enable the display of the main application menus.

Statesman main application window

The two large control panes shown in the upper and lower halves of the window 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.

Note: For further details of Statesman configuration and operation please refer to the Statesman

manual.

Crystal Vision Statesman

7DEC102SUser ManualV1.0 05/11/03

Configuration

The configuration tab provides access to the following:

•PAL/NTSC/Auto - standard selection

•YC/Composite – format selection

•8 Bit/10 Bit – decoding quality

•Blank or unblank the VBI interval

•Pedestal – pass or block the NTSC pedestal

•Status – input and reference presence

Configuration

Input settings

Input settings are as follows:

Input setting Description

PAL/NTSC/Auto Force input standard or allow automatic switching between PAL and NTSC

YC /Composite Select Y/C (S-Video) or composite input format

Crystal Vision Statesman

8DEC102SUser ManualV1.0 05/11/03

Output settings

Output settings are as follows:

Output setting Description

8 bit/10 bit/Auto Force 10 or 8 bit output quality or allow automatic selection.

VBI Blanked

/Unblanked

VBI data blocked or passed unprocessed (unblanked) on luminance channel

Pedestal (NTSC

only)

ON: 7.5 IRE subtracted from black level, gain increased

OFF: Black level and gain settings assume no 7.5 IRE offset

Note: Vertical Blanking Interval data is normally present in PAL on lines 7-22 and 319-335 and in

NTSC on lines 10-20 and 273-282.

Status

Status indications are as follows:

Input setting Description

Input presence Green when input detected. Grey when no input detected.

Reference present Yellow when analogue reference detected. Grey when no input detected.

Note: Refer to the installation section for details of the external analogue reference input loop or

terminate link on the module itself.

Crystal Vision Statesman

9DEC102SUser ManualV1.0 05/11/03

Gain, black level and phase adjustment

The level adjustment tab provides access to the following:

•Luma and Chroma gain

•U and V gain

•Black level

•Phase/Hue – 10 bit mode only

Level adjustment controls

Setting gain and black level

The gain and black level adjustments are independent for 8 and 10 bit modes as well as

Composite and Y/C modes. For example, if the unit is set up in 10 bit mode and

subsequently adjusted in 8 bit mode, the 10 bit adjustments are maintained and will be

restored when 10 bit operation is resumed.

There are effectively four sets of independent gain and black level adjustments; 8 bit

composite, 10 bit Composite, 8 bit Y/C and 10 bit Y/C.

Adjusting phase/hue

The phase adjustment is separate for each video standard and for composite and Y/C

inputs. This adjustment is available in 10-bit mode only.

The Phase/Hue control adjusts chroma phase relative to burst. The range of adjustment is

360 degrees, in steps of roughly 0.1degrees. When the maximum adjustment is reached

the value wraps around to zero.

Recalling defaults

To recall default settings press the 'Cal' button.

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