Crystal Vision TAD202 User Manual
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Crystal Vision TAD202 User Manual

Tracking audio delay
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TAD202
Tracking audio delay
Crystal Vision Ltd., Lion Technology Park, Station Road East, Whittlesford, Cambridge, CB22 4WL, England.
E-mail: sales@crystalvision.tv
Website: www.crystalvision.tv
Tel: +44(0) 1223 497049
Fax: +44(0) 1223 497059

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  • Page 1 TAD202 Tracking audio delay Crystal Vision Ltd., Lion Technology Park, Station Road East, Whittlesford, Cambridge, CB22 4WL, England. E-mail: sales@crystalvision.tv Website: www.crystalvision.tv Tel: +44(0) 1223 497049 Fax: +44(0) 1223 497059...

  • Page 2: Table Of Contents

    Crystal Vision TAD202 User Manual R2.8 Contents Introduction       System overview Installation     Rear modules and connector I/O       RM04 balanced analogue/digital audio   RM07 unbalanced digital audio   RM07 monitoring assignments General Purpose Interface (GPI)  ...
  • Page 3 Crystal Vision TAD202 User Manual R2.8   Module codes   Shorthand codes Input status     Reference status     Control and monitoring     Configuration (GPI) menus       Using presets Statesman     Statesman operation    ...

  • Page 4: Introduction

     Audio error masking  GPI status outputs The TAD202 has two option card positions, one for an input option card and one for an output card. The cards fitted are shared between each signal path or side. Both input and output positions must be fitted with an option card to complete the signal path.

  • Page 5: System Overview

    There are two different types of rear module to provide a wide range of I/O options. The TAD202 can be used with two frame rear modules. The single slot RM04, which allows 24 tracking audio delays in 4U and should be used for analogue or 110Ohm AES and the two slot RM07 should be used for 75Ohm AES.

  • Page 6: Installation

    The TAD card fits in the upper of the two slot positions for the RM07 and no card is fitted in the lower slot. For details of fitting rear connectors please refer to the appropriate frame manual. TAD202 User Manual R2.8 15/03/2012...

  • Page 7: Rm04 Balanced Analogue/Digital Audio

    I/P (far left BNC) Not used When DOP2 is used, the far left AES 2 OUT BNC can be used for the reference input Note: for both channels. This replaces the 2nd buffered output for side 2. TAD202 User Manual R2.8 15/03/2012...

  • Page 8: Rm07 Monitoring Assignments

    4, 14, 13, 23 10, 11, 19, 20 10, 11, 12, 20 The Remote 1 and 3 frame rear connectors cannot be used to access TAD202 audio monitoring connections when the RM04 rear connector is used. 2.2 General Purpose Interface (GPI) Each frame slot has up to six connections ‘a-f’...
  • Page 9 6 in each case and +5V @500mA is pin 15 on Remote 2 and Remote Note: The +5V output is protected by self-resetting thermal fuses, which limit the total output current available from Remotes 1-4 to approximately 1A. Remotes 5-8 are similarly protected. TAD202 User Manual R2.8 15/03/2012...
  • Page 10 Remote 2: 26-way high-density D-Type male plugs and frame ground is pin 6 and +5V @500mA is pin 15. Note: The +5V output is protected by self-resetting thermal fuses, which limit the total output current available from Remotes 1-2 to approximately 1A. TAD202 User Manual R2.8 15/03/2012...
  • Page 11 Remote 2: 26-way high-density D-Type male plugs and frame ground is pin 6 and +5V @500mA is pin 15. Note: The +5V output is protected by self-resetting thermal fuses, which limit the total output current available from Remotes 1-2 to approximately 1A. TAD202 User Manual R2.8 15/03/2012...

  • Page 12: Fitting Audio Sub Pcbs

    Installation 2.3 Fitting audio sub PCBs The TAD202 has two option-card slots for audio I/O sub PCB. The upper I/O slot must have an input option-card and the lower I/O slot must have an output option-card fitted. Option-cards must be fitted to both I/O slots. If one or more analogue audio sub PCB are used an additional +/- 18V DC PSU sub-PCB is also fitted.

  • Page 13: Sub-Module Link Settings

    TAD202 PCB. Fitting sub PCBs with the component face downwards may result in component damage. To check which modules are fitted when a TAD202 is already in place in its frame, use the card-edge option status check (status menu 1 explained in section 5.1.) or active control panel menu 1.1 or Sub PCB status in the main Statesman control menu.
  • Page 14 (balanced – centre pin only) or 75Ohm (unbalanced – lower 2 pins). DOP2-75 ^110R ¬75R >OPEN=HI Z ^AES ¬Word Clk ^AES2 ¬REF I/P CRYSTAL VISION LTD 75R DOP This digital audio output module provides 2 75Ohm AES stereo pairs or four mono outputs. TAD202 User Manual R2.8 15/03/2012...
  • Page 15 HD-AOP2 Crystal Vision’s range of HD sub PCB are also fully compatible with the TAD202 so may be used in place of the original sub PCBs. The analogue audio output module provides two stereo pairs or four mono outputs that may be used as destinations when routing de-embedded signals.
  • Page 16 2 pins). Link jumper JL1 is provided to select the external reference input, which is always fed via a ‘D’ connector, between 110 Ohm (upper 2 pins), HiZ (balanced – centre pin only) or 75 Ohm (unbalanced – lower 2 pins). TAD202 User Manual R2.8 15/03/2012...
  • Page 17 48 kHz inputs, and other sample rate inputs such as 44.1 kHz and 96 kHz. The signal output from the DIP2-RS to the TANDEM HD-20 is at 48 kHz derived from the video content of the SDI signal into which it is to be embedded. TAD202 User Manual R2.8 15/03/2012...
  • Page 18 In general, balanced outputs require the use of rear modules with a D-type connector and Notes: unbalanced outputs are for use with BNCs. HiZ is achieved by removing termination jumpers – they can be parked for safe keeping by replacing them using only one pin. TAD202 User Manual R2.8 15/03/2012...

  • Page 19: Card Edge Operation

    The TAD202 always powers up with the last settings of the most recently saved preset. If a setting is adjusted by mistake, changing the menu (piano MENU or SEL switches) will discard the unwanted setting.

  • Page 20: Setting Control Mode Options

    Option card must be DOP2 75 or 110 T1 / T2 pulse (AES replacement) Option card must be DOP2 75 or 110 Signal path or ‘side’ Do not confuse TAD202 channel with AES Channel channel GPI output 5 No used function. T1 presented on GPI5 GPI output 6 No used function.

  • Page 21: Card Edge Status Menus

    For SEL positions 4 to F, the shaft encoder will alter (but not save) the assigned values as indicated in the remainder of the table. Do NOT touch the ADJ shaft encoder when using these SEL positions for status information. TAD202 User Manual R2.8 15/03/2012...

  • Page 22: Configuration

    /enable 3.2 Configuration The tracking function of the TAD202 is driven by a TTL level pulse. The tracking delay added to any user-set delay varies to compensate for the video delay. The tracking source and the rate at which tracking occurs may be selected for each channel. If tracking is off, delay may be set manually for each channel.

  • Page 23: Manual Delay Control

    In tracking mode, the fixed delay should be set to the minimum audio delay that the system requires. For example, if a video synchroniser is used in a particular signal path, the compensating TAD202 audio delay should be set to the delay of that signal path when the synchroniser is introducing its minimum delay.

  • Page 24: Aes Reference Backup

    Access the AES reference backup menu using sub-menus A of the Status/Config menu - MENU DIL switch all levers UP (or OFF). Switch 1 of the MENU dip switch must be toggled between ON and OFF to save the new value in the TAD202 database. Description...

  • Page 25: Selecting The Tracking Source And Polarity

    Access the Tracking source and polarity menus using sub-menus B and C of the Status/Config menu - MENU DIL switch all levers UP (or OFF). Switch 1 of the MENU dip switch must be toggled between ON and OFF to save the new value in the TAD202 database.

  • Page 26: Audio Monitoring

    Status/Config sub-menus D and E (MENU DIL switch all levers UP or OFF). Switch 1 of the MENU dip switch must be toggled between ON and OFF to save the new value in the TAD202 database.
  • Page 27 Preset 11 1 0 1 1 Preset 12 1 1 0 0 Preset 13 1 1 0 1 Preset 14 1 1 1 0 Preset 15 1 1 1 1 All GPIs are active low. Note: TAD202 User Manual R2.8 15/03/2012...

  • Page 28: Using The Active Control Panel

    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 Please refer to the Crystal Vision Control Panel manual for details of the Panel Setup, Lock Panel and Note: Diagnostic menus.

  • Page 29: Updating The Display

    In the example above, the card displayed is located in the first frame in slot number 1. When the desired card is selected press the ENTER key to access that card’s HOME menu. The message shows that a TAD202 has been selected. TAD202 home menu...

  • Page 30: The Tad202 Menu Structure

    Crystal Vision Using the active control panel 4.1 The TAD202 menu structure The main top-level menus for a module are obtained by pressing the F1, F2, F3 and F4 keys from that module’s HOME menu. Menu keys are illuminated when active and when further menus are available.

  • Page 31: Module Codes

    Crystal Vision Using the active control panel Module codes The following module and function codes are used in all TAD202 control panel menus: Menu code Module code Function code Function description AIP2 Ana IP Analogue input option card AOP2 Ana OP...

  • Page 32: Reference Status

    External reference status  TTL tracking reference status Phase menu structure Description If a digital output card is fitted status may be AESrefOK or No AESref TTL status may be ttl ref OK or No ttl ref TAD202 User Manual R2.8 15/03/2012...

  • Page 33: Control And Monitoring

    Please refer to the card edge control or Statesman chapter for details of reference selection, digital output phase and TTL tracking pulse source assign/polarity. TAD202 User Manual R2.8 15/03/2012...

  • Page 34: Configuration (Gpi) Menus

    Preset recall is not available from the front control panel unless GPIs have been disabled. This avoids the possibility of GPI inputs causing preset memory data to re-configure TAD202 at the same time as presets are being updated. TAD202 User Manual R2.8...
  • Page 35 To check if a location is empty use menu 1.4.2.1 to select the location, BUT DO NOT TIP: STORE. Then move up the menu until RECALL can be selected. Press RECALL. The message ‘EMPTY MEMORY LOCATION’ will be displayed if it is empty. Otherwise ‘ARE YOU SURE’ will be displayed. TAD202 User Manual R2.8 15/03/2012...

  • Page 36: Statesman

    Statesman 5 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 Crystal Vision modules with the benefit of “see-at-a- glance”...

  • Page 37: Power-Up Defaults

    Power-up defaults The auto-configuration process, performed when a TAD202 is first powered up, normally returns the card to the state it was when powered down. User delay settings must be stored as a preset in order to be restored. If the audio option piggyback cards have been...

  • Page 38: Control

    The TTL tracking control inputs should be compatible with the SYN102 Crystal Vision video synchroniser tracking sync output with a period of 1 video frame. The pulse length (the time between the rising and falling edges) should be the same as the video delay being tracked, but not less than 5µs.
  • Page 39 The TAD-202 status is shown on the top right hand side of the Control menu: Line standard – 525 or 625 Reference presence AES/TTL (green OK) Tracking sync T1 and T2 (green = present, red = absent) Sub PCB fitted AOP, AIP2B, DIP2RS, DOP2-75/110 TAD202 User Manual R2.8 15/03/2012...

  • Page 40: Configuration

    The main AES reference (chosen in the Control menu) can be replaced automatically if it fails or is removed for any reason by one of the TTL tracking references. Either a positive or negative going tracking pulse edge may be selected as the backup reference. TAD202 User Manual R2.8 15/03/2012...
  • Page 41 Audio monitoring is provided by a miniature stereo jack socket at the card edge. The same signal may also be routed to the rear connector in either AES or analogue format. The stereo source monitored can be selected from any valid audio input or output. TAD202 User Manual R2.8 15/03/2012...
  • Page 42 In each case, the output phase may be varied using the rotary control provided over a range of 360 degrees. Using presets The Preset Controls menu provides access to setup presets, monitoring assignments and SDI crystal PLL embed reference selection. TAD202 User Manual R2.8 15/03/2012...
  • Page 43 If an attempt is made to recall an empty location, the recall operation will fail. ‘GPI enable’ should not be checked whilst presets are being created or recalled by this menu to prevent inadvertent GPI operation. Enable ‘GPI controls preset recall’ when finished if required. TAD202 User Manual R2.8 15/03/2012...

  • Page 44: Trouble Shooting

    These error messages are not displayed at the remote or local panel displays (if fitted). Note: The remote or local panel may not be able to locate the TAD202 if one or more of the above errors are present. TAD202 User Manual R2.8...

  • Page 45: Checking Inputs, References And Configuration Parameters

    6.1 Control cross reference The following table is provided to cross-reference the card edge and active front panel commands. The card edge controls allow access to the all TAD202 parameters, whilst the Active Control Panel provides access to a selected sub-set.

  • Page 46: Sample Problems And Their Solution

    Check that the Comms LED in an Indigo frame flashes when Statesman communication control is attempted Check any active control panel/Statesman cabling Check if the control panel/Statesman can control another card in the same rack If necessary re-set the card TAD202 User Manual R2.8 15/03/2012...
  • Page 47 If required, the card may be reset by simply removing the rack power and re-applying power after a few seconds or by removing the card from the rack re-inserting the card. It is safe to re-insert the card whilst the rack is powered. TAD202 User Manual R2.8 15/03/2012...

  • Page 48: Specification

    Front card edge visual monitoring with alphanumeric and LED indicators Status monitoring Remote control panel also available Maskable GPI output of inputs/references present and silence 250g with two sub PCBs fitted Weight TAD202 User Manual R2.8 15/03/2012...
  • Page 49 2 x 20 bit AES/EBU stereo pairs. DOP2-110, 110Ohm or DOP2-75 Audio output (unbalanced) 75Ohm BNC. Factory configuration only Available instead of 2 buffered output on some rear connector modules. Reference Link selected May be AES reference or Word clock – link select TAD202 User Manual R2.8 15/03/2012...

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