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Murraypro Test Chest Operational Manual

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Test Chest: Manual
Murraypro
Test Chest
+
EYE~POD
Operational Manual
Issue: 1V0
1

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  • Page 1 Test Chest: Manual Murraypro Test Chest EYE~POD Operational Manual Issue: 1V0...
  • Page 2 Introduction: Test Chest is controlled by means of a touch sensitive LCD panel and only a gentle touching action will be required to achieve the desired action. The LCD's surface must NEVER be activated by a stylus such as a capped ball-pen, or, worse still, a hard point such as an uncapped pen or a screwdriver! Such activity is highly likely to cause scratch-damage to the LCD's front panel;...

  • Page 3: Power Considerations

    Test Chest: Front. Power considerations. Test Chest is powered when portable, from an internal 3000mAH 7V2 Lithium Polymer battery pack. We have achieved nearly 5 hours endurance with a freshly charged battery in tests, so realistically Users could anticipate in excess of three...
  • Page 4 Test Chest: Manual brightness, the mode used, and the Clock rate of the TV Standard. Test Chest is unusual in that it has two quite distinct modes of operation, and these are totally different, and separate, from any battery charging considerations:- In Which-Wire? mode, the unit will detect an input signal on BNC1, and power up automatically, displaying the signal as soon as it is detected.
  • Page 5 SDI and AES signals enter the Unit via the same connector. It is never necessary to double guess what signal may be present on a given cable, as the Test Chest will automatically switch to the appropriate Digital, Analogue, AES or Tri-level/Composite sync mode, as required to correctly display the detected input which now includes HDVI signals with TV related image formats.
  • Page 6 Station Reference Pulse problem without any analogue capability? AES inputs in “Which-Wire?” mode. Be aware that Test Chest’s highly impressive capability of detecting and identifying “AES” signals fed in via BNC1, ONLY applies when the Unit is in “Which-Wire?” mode, having powered itself up automatically.
  • Page 7 CVBS outputs of the selected Test Signal on SD. Tri-level sync generation The CVBS video output can of course only be valid whilst the Test Chest is generating at 'Standard Definition' on 525 or 625 Standards, and is muted on HD.
  • Page 8 'LCD DIM' mode to conserve battery power. Auto/Manual Power Management: Under certain circumstances it may be desired to set the Test Chest to generate a test signal for a prolonged period, perhaps whilst tests are performed elsewhere.
  • Page 9 Test Chest: Manual 2b) Test Signal Generation~Audio Test Chest generates audio in 3 different formats simultaneously:- 1) Embedded Audio is inserted in Group 1 by default, but Group 2, 3 or 4 may be manually selected for instead. Each channel 1~4 within the selected Group may be enabled or muted as required, with on-screen mapping to track and display the current set up.
  • Page 10 AES Matching with the Audio POD: Generation & Monitoring AES: Unbalanced IP @ 75 W. Very easy, just couple the coax cable to BNC2 Test Chest’s main AES input. AES: Balanced IN on XLR3-M @ 110W. Couple IP cable XLR3-M to the POD’s Transformer XLR3-F, and loop a short BNC~BNC coax round to TC’s BNC2.
  • Page 11 600 W Audio loading: Output loading: Test Chest follows current audio line driving practice, sending from a current limited, balanced, low impedance source. Test Chest follows Broadcast equipment’s input convention, by presenting a balanced load with a high impedance comfortably in excess of 10K W.
  • Page 12 6MHz. HDVI Display: Test Chest’s HDVI input port is designed to accept ‘TV display’ (SD~>3G) formats adhering to ‘681, and whilst the port will accept signals on other graphics standards, they may not be coherently displayed. Use of industry-standard connectors enables PC Display, Graphic cabling, and associated interfaces to be swiftly checked out.
  • Page 13 Vectorscope menu page. “EYE” and Jitter: This feature is supported by the Test Chest’s EYE~POD accessory, which provides the EYE and Jitter measurement capability, which is accessed via the WFM...
  • Page 14 The numeric display, which appears on the top 'banner' field, is heavily damped, and is only intended for use with steady-state tones. Using the Test Chest’s 75W WW? input port, Audio Monitor mode provides accurate audio level monitoring of embedded audio signals via the Audio menu.

  • Page 15: Audio Monitoring

    AES/Video: Lock Confirmation Test Chest includes a very useful Utility to confirm that the 48KHz Word Clock of the AES input signal on BNC2, is synchronous with the chosen Video Reference signal, fed in this case via BNC 1.

  • Page 16: External Display

    Sometimes it may prove useful to be able to port the Test Chest's 800x480 display on to an external PC type monitor. This is easily achieved using the 19 pin HDVI output port at the top of the right side panel, active whenever Test Chest is powered.
  • Page 17 Test Chest: Manual Additional functions are present within the Test Chest, and these are discussed below:- Audio Signal Tracer The internal audio amplifier is also operational in WFM mode, and may be selected via this three step operation:- 1) On the Home Menu, select the Input = “W-W?” option.
  • Page 18 Users may wish to optimise the Aspect Ratio of the internal LCD panel in order to display Heritage 4:3 pictures correctly. The Test Chest’s LCD aspect ratio is toggled using the Aspect Ratio option on the “Set Up” menu, accessed via the 'Spanner' icon. Note that this feature is only operational when the LCD is displaying a TV Picture, thus ensuring that the menu pages are always completely visible.
  • Page 19 In a 75W system Test Chest was very easily able to differentiate between a correctly terminated system, and one which is:- Open circuit (unterminated).
  • Page 20 Test Chest: Manual When Logging is in progress Test Chest forces the power timer into “Always ON” mode. Else, with “Auto Off” mode enabled powering down occurs 10 minutes after the last icon-touch, and this might just prove to be very annoying! The ‘Auto Off’...

  • Page 21: Vitc Reader

    Reselecting “START LOG” will flush the storage memory and the Event counters, which recommence from zero. VITC Reader Test Chest contains a Reader which decodes VITC (SDI only) on BNC1 and displays the decoded time, preceded with a “V”, in the banner on the LCD. Configuration Memory Test Chest contains memory which stores 10 User-configurations.
  • Page 22 Clock (1080i 50Hz) as our “Reference”, and then store this loss value. Having defined our Reference’s parameters, take one end of your Reference cable to the Test Chest SDI output on BNC4, and loop the far end of the cable round to BNC1. Store this value by tapping the “Set SDI Cable loss”...
  • Page 23 The internal battery charger monitors a number of parameters, as above, and will prevent overcharge, no matter how long the external power is connected. From “flat”, expect the Test Chest battery to be fully recharged in 2~3 hours. Note that manufacturers suggest that the performance of a new pack will improve after a few charge/discharge 'conditioning' cycles.

  • Page 24: Frequently Asked Questions

    “topping up” charge before use. Battery “off” switch Test Chest is fitted with a ‘battery disable’ switch which is mounted on the left end panel adjacent to the D-25 connector. This switch is usually in the “Norm” position, and the Unit will then be ready for instant service.
  • Page 25 Although great care has been taken to ensure that the information given in our documentation is as accurate as possible, errors can occur..Should you identify, what you believe to be an error, or perhaps a Test Chest operation that you feel requires revision, or a new instruction, please email your suggestion to us at:- tech@murraypro.com...

  • Page 26: Waveform Monitor

    Test Chest: Manual Generated with 10 Bit precision. CVBS Generated to with 8 Bit equivalent precision, 0.5'DP & 0.5%DG.. A+V Sync Clapper Board, proprietary Test Signal. Video Generate & Monitor 1080p @ 50, 59.94, 60Hz. Level A (3G) 1080p @ 50, 59.94, 60Hz. Level B (3G) 1080ps @ 23.98, 24, 25, 29.97, 30Hz (1.5G)

  • Page 27: Character Generator

    Test Chest: Manual 1080p@24HzH:1920 3D SH1080p@24HzH:1920 3D TB 720p@60HzH:1280 3D SH720p@60HzH:1280 3D FP 720p@50HzH:1280 3D SH720p@50HzH:1280 3D TB (SH = Side/Side HalfTB = Top & BottomFP = Frame Packing) HDCP EDID or CEC are not specifically supported. Output: Either ‘LCD-Panel’ display, or HDVI TSGen.

  • Page 28: Current Firmware

    X:180mm, Y:140mm, Z:35mm nom. Test Chest + Audio-POD 1.5KG nom Size: X:280mm, Y:140mm, Z:35mm nom. Test Chest Unit + POD & PSU in Carry case 2KG nom. Size: X:290mm, Y:250mm, Z:95mm nom. Current Firmware PC:1V0 WPM:1V0 TSG1V1 PM: 1V0 Nov 2015 Reported at:- http://www.murraypro.com/testchest.htm...
  • Page 29 Test Chest: Manual Alignment: Test Chest is supplied pre-aligned and fully tested. Under normal circumstances the adjustments below are not required, however following any unauthorised "Tweeking", including an unintentional ‘Factory Reset’ command, the following procedures may be invoked to correct off-sets that may have been unintentionally introduced.
  • Page 30 This oscillator is adjusted using the "Setup" menu (Gear Icon), selected from the Home page. 1) Set Test Chest to generate a standard definition 625 100% Colour Bar. This is important as TC mutes the Composite Video output when generating HD signals.
  • Page 31 The EYE~POD module is offered as an accessory, and may be used with any Test Chest or Test Chest 3G that has been upgraded and fitted with appropriate software. EYE~POD modules are not dedicated for use with any particular unit, so a single Inventory Asset could service several Test Chests.
  • Page 32 Test Chest: Manual Selection of the accessory’s "Eye" mode will present a triple-function display showing Eye and a dual histogram feature. The histogram display shows simultaneous Timing and Alignment jitter parameters. SMPTE/ITU specify the bandwidths and roll off characteristics required to display these two jitter parameters correctly, and these parameters will vary with the input TV standard.
  • Page 33 Test Chest: Manual These timing measurements are facilitated by the finer subdivisions within the boxes on the Eye graticule. Considerations for the display of ‘Timing Jitter’ Be aware that, unlike with some other Eye display units, when the “Timing Jitter” mode is selected, with EYE~POD the TC's Eye waveform will be presented with the display timebase using that mode too.
  • Page 34 Test Chest: Manual Jitter measurement filtering The SMPTE/ITU Standard of the signal source is detected by the EYE~POD + TC, and this will determine the tracking characteristics of the PLL/oscillator used for the detection, measurement and display of associated ‘Jitter’...
  • Page 35 Test Chest: Manual Certification Test Chest This is a Class A Product and is not intended for use in Domestic Environments Product is CE compliant. Declaration: The Equipment meets the requirements of EMC Directive 2004/108/EEC for Electro Magnetic Compatibility, and Low Voltage Directive 2006/95/EEC for Product Safety.

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