LV 5152DA Front Panel

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LV 5152DA Front Panel
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LV 5152DA Front Panel

• SELECT key steps through Serial A, Serial B or
  Analog inputs. Push for gt1 sec. for Cal. signal.
• CH1, CH2, CH3 buttons toggle YPbPr, GBR
  components on/off.
• F-1 through F-4 are soft keys having menu
  dependent functions.
• DISPLAY key steps through overlay , parade or
  timing modes.
• MODE key selects WFM, VEC, PIC or AUDIO modes.
• Menu keys access Line Select, Cursors,
  Filter/Gain, Sweep. Presets and the System Menu.

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LV 5152DA - Rear Panel
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LV 5152DA - Rear Panel

• External Reference for timing of SDI A B and
  Analog.
• AES/EBU 4 output pairs 1Vp-p into 75? for 8
  channels total as per SMPTE 276M.
• Pix Monitor Output as YPbPr or GBR for HD color
  monitor.
• Analog loop through for 3-wire YPbPr or GBR 169
  HD.
• Serial Input A and B at 1.485 Gb/s
• Switched serial output of either the A or B
  input.
• Remote D-25 recalls presets 1-8, balanced audio
  inputs, and also serial video alarm output.

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Parade Mode - Waveform Monitor

• HDTV SDI 422 components are displayed on an
  instrument grade waveform monitor CRT. This is an
  important issue to consider, for example, when
  measuring a Y 30 MHz multiburst packet using
  horizontal magnification instead of mapping a
  digital value to a raster.
• Pb Pr color difference signals are 700mVp-p
  for 100 color bars and straddle the pedestal
  shown as an etched dotted line labeled 50 equal
  to 350mV or 200 Hex in the digital domain.

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GBR - Parade Display

• A GBR Parade screen of SDI digital input showing
  the three components with the label at the bottom
  of screen.
• To show the slight differences between the old
  new color matrices manually select 1035i and
  input 1080i or vice versa.
• This results in slight castling of the tops of
  GBR components.
• Switch to vector mode to see the slight shift in
  vector signal rotation and an auto shift of the
  electronic target positions.

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Colorimetry Coded Values for 3 Standards
  All scanning formats originate as component
analog gamma-corrected Eg, Eb and Er
signals. The Eg, Eb and Er values are also
encoded into component analog Ey, Ecb and Ecr
signals.  
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Overlay - Waveform Monitor

• Overlay display mode allows comparison of
  component levels and timing.
• Here color bars are displayed in overlay showing
  the amplitudes as well as timing relationships
  between luminance and chrominance values for
  YPbPr.
• Overlay operation is commonly used for GBR color
  matching when doing camera balance.

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Electronic Targets - Vectorscope

• Electronically generated vector targets can be
  set for 75 or 100 color bars.
• Circle target has 10? markings.
• Matrices are included for both the old 1035i as
  per SMPTE 240M-1995 and the new 1080i 720p as
  per SMPTE 274M-1998.
• I Q axis can be toggled on/off.
• Target boxes have a 3 range for amplitude.

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External Graticule - Vectorscope

• Traditional NTSC targets converted to HDTV have
  inner target boxes are 2 IRE 2.5º.
• Outer boxes are 20 10º.
• Circle has 10º 2º markings.
• Decoded vectorscope display components are Pb for
  horizontal and Pr for vertical.
• Analog GBR input signals are converted to color
  difference signals YPbPr before display.

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Picture Display 169

• Strobe of 1-15 lines correlates picture feature
  of interest with line select to id the line(s).
• Strobe can be toggled on/off together for the
  monitor and picture output.
• Hex data dump mode can then be used to read a
  specific line, pixel number value.
• Contrast control can be turned on/off when in the
  picture mode by pushing the Filter key.

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Audio X-Y Mode

• Audio gain reference level is selectable between
  0, 2, or 4 dB
• Analog audio inputs are from the multi-pin D-25
  connector on the rear panel.
• Display permits an indication of amplitude and
  the phase relationship between balanced analog
  X-Y audio inputs to be shown.

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Cursors - Waveform Monitor

• Here a reading of ?78.7 is the readout of the
  ?V cursor value from the reference cursor at the
  base line .
• Cursors can be either vertical for measuring
  ?Time or horizontal as shown for measuring
  ?Volts.
• Units can be volts, time, percent or relative to
  100 REFerence.
• Positioning of the selected cursor(s) is either
  REF, ? or TRACKing in which case both of the
  cursors move together.
• The cursor(s) are moved or POSITIONed with the
  rotary control.

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Line Select - Waveform Monitor

• FIELD select is set to ALL here showing both
  field 1 field 2.
• Window INCrement DECrement soft keys are used to
  selected the number of lines 1 to 15 of
  interest to be intensified.
• Lines selected can be scrolled through the raster
  with the rotary control.
• Top left screen readout shows
• line field 1 line 30
• field 2 line 593
• 1 intensified line

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Custom Preset Labels

• Here the custom preset F-Key recall mode has been
  selected.
• This screen appears as the unit is normally used
  enabling fast id and
• one button recall of all the desired preset
  mode conditions with the current input signal.
• Direct selection of the soft key buttons F-1
  through F4 for 75 BARS, TIMING, LINE 9 or SYST
  OK.

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Preset Recall

• RECALL KEY allows the operator to recall the
  selected or boxed mode for quick measurements.
• PRESET MODE for customization of the selected
  label.
• F-KEY RECALL mode when enabled allows soft keys
  F-1 to F-4 directly recall the displayed preset
  label mode conditions.
• Recall a waveform monitor with customized
  (cursors labels) for bowtie measurement mode or
  look at a specific line or vectorscope or audio
  X-Y or picture modes.

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System Menu - system Menu 1a/9

• SYSTEM menu offers access to operation of 9
  key sub-menus.
• VIDEO FORMAT boxed sub-menu allows for
  automatic recognition, setup and display of 14
  different digital serial A or B input signal
  formats.
• Video format also allows setup control of analog
  3-wire HDTV 169 input system formats.
• The rotary control scrolls the box up and down
  selecting any one of the 9 sub-menus.

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Format Menu - System Menu 1b/9

• Cool feature is automatic digital format
  recognition setup and display readout of 14
  systems.
• Format readout is displayed in lower left corner
  of the CRT.
• When in 3-wire analog input mode format mode is
  manually selected.
• Sample Frequency optimization is for 60 Hz
  74.25 MHz
• or
• 59.94 Hz 74.25MHz/1.001 74.1758 MHz.

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Digital System - System Menu 2/9

• EAV/SAV is normally set to remove.
• Waveform monitor display mode can be either YPbPr
  or GBR.
• PIX MONitor OUTput drive can be independently
  selected to match the monitor input format
  required.
• AUDIO bit depth is selectable from 16, 18, 20 or
  24 bits. Normally, leave it at 24 bits to avoid
  truncating the bit stream especially when working
  with multiple formats.

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Analog System - System Menu 3/9

• INPUT FORMAT 3-wire loop through inputs can be
  YPbPr or GBR.
• If input is YPbPr waveform display can be either
  YPbPr or transcoded to GBR.
• If GBR is input the output waveform display can
  only be GBR.
• Input coupling is selectable for AC or DC.

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DC Restorer - System Menu 4/9

• Intensified points on back porch for each YPbPr
  component show clamp points.
• Note the end of Pb component clearly shows
  embedded audio.
• Response speed is set to slow lt20 or fast
  gt80.
• Sample Point is shown as fixed.
• When Sample point is variable the rotary control
  scrolls the intensified points left or right
  across components within a range of 0.5 to 2
  µsec.

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Pb/B, Pr/R Position - System Menu 5/9

• First check the Y trace for both vertical
  position rotation are proper splitting the zero
  volt graticule line. Adjust as needed. This
  establishes the reference.
• Pb/B, Pr/R selection position allows alignment
  of the bipolar color difference components on
  respective 350 mV pedestals.
• F,D Select allows the rotary control to select
  from the system menu or for positioning of the
  Pb Pr components.
• Set the top POSition menu item to OFF before
  exiting menu!

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Vectorscope Menu - System Menu 6/9

• Electronically generated targets can be set to
  match 100 or 75 reference color bars. This
  applies for serial digital, analog HD and the new
  optional component analog video 43 inputs.
• Graticule can be switched to internal or
  external.
• I Q axis display can be toggled on/off.
• Circle is shown with 10º major markings.

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Calibration Menu - System Menu 7a/9

• Vertical Gain Mode sub-menu is available enabling
  adjustment of values.
• Sweep Time Variable Mode sub-menu is available
  enabling adjustment of sweep speed values.
• Calendar Mode brings up sub menu for setting the
  real time clock/calendar which time stamps
  digital errors of (video, audio, ancillary
  gamut) logs.

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Calibration - System Menu 7b/9

• Real Time Clock Calendar (Y2K compliant) is set
  here for time stamping data/gamut log errors.
• Toggling F-1 Calendar steps through year, month
  or date.
• Toggling F-2 Time steps through hour, minute or
  second.
• Setting the time is done when the Set Key is
  pushed updating the now set clock/calendar
  displays.
• The rotary control is used to scroll through the
  available values of the associated field.

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Channel Sequence - System Menu 8/9

• Channel Sequence allows front panel selection of
  channel waveform monitor display order either
  GBR or RGB as shown.
• Note here the RGB or GBR component label is
  displayed at the bottom left center of the
  screen.
• This does not change the order of the rear panel
  picture monitor component outputs.

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Switch Configuration - System Menu 9/9

• Input Select allows the operator faster
  switching by toggling between Serial A and
  Serial B without going through Analog. As
  shown all three inputs are active.
• Mode Select allows operator to toggle between
  WFM VEC modes as opposed to WFM, VEC, PIC,
  AUDIO modes. This feature was added because we
  listened to engineers asking for it who use
  external picture audio monitoring.

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Error Setup Menu - Digital sub menu

• Alarms are set here by turning the rotary control
  to move the ?arrow to the left of the selected
  item and then pushing the CHANGE key.
• The RETURN key returns us back to the prior
  Digital Menu 1/3 or 2/3 Gamut Menu depending on
  where we were before entering this menu.

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Digital Menu - page 1/3

• Video Format readout , 1 of 14, different formats
  is displayed.
• Cable Length is measured to 100 meters with a 5
  meter resolution and this time its patented.
• Main Error Log box shows
• NOW current real time clock
• 1st ERROR the time it occurred.
• FROM 1st. ERROR the time from first error.
• ERROR COUNT enabling calculation of bit error
  rate.

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Gamut Error Log - page 2/3

• NOW shows the current time in the Gamut error
  log screen .
• 1st. ERROR time of occurrence is frozen until it
  is manually reset which gives a dashed line.
• FROM 1st. ERROR allows for days, hours, minutes
  seconds 00000008
• ERROR COUNT is divided into the difference
  between time (from 1st error) - (1st error) to
  get the gamut error rate.

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Hex Data Component - page 3a/3

• LINE numbers are displayed for fields 1 and 2.
• SAV start of active video samples, 2196 to 2199,
  are labeled for samples 3FF, 3FF, 000, 000, 000,
  000, 31C, 31C.
• YCbCr digital samples are shown in component mode
  as opposed to serial mode.
• When 50 STEP F-3 key is held down the x50 scroll
  accelerator allows the rotary control to zip
  through samples or lines.

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Hex Data Serial - page 3b/3

• Serial readout shows Y1, Cr,Y2, Cb, Y1 denoting a
  422 sampling ratio.
• SAV - Start of Active Video label shows 3FF 3FF
  000, 000, 000, 000, 200, 200. The value 3FF by
  design is illegal within the active video line
  and when EAV/SAV are passed and decoded result in
  ringing.
• Note line number 40 603 for fields 1 and 2
  respectively.
• Note Arrow to the left of ?SAMPLE blinks when
  the sample is updated.

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Video Error Details - error details 1/3

• Screen shows CRCC cyclical redundancy code check
  ERRors detected in both Y Luminance and C
  Chrominance samples.
• NEXT KEY steps through Video, Audio, Ancillary,
  Error Log then back to digital menu page 1/3
  screens.
• RETURN KEY brings us back to the prior menu
  screen which in this case is the first digital
  menu.
• Video errors are tested compliant to SMPTE-292M.

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Audio Error Details - error details 2/3

• BCH decode binary coded hexa-decimal built-in
  error correction shows if any uncorrectable
  errors of specific bit(s) 0-7 are detected .
• Channel Diagnostic check of channel pairs 1/2
  3/4 5/6 7/8.
• Embedded digital audio is measured and errors
  detected compliant to SMPTE -299M.

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Ancillary Error - error details 3/3

• SMPTE-291M defines ancillary data packet and
  space formatting in the digital video data
  stream.
• User Data Word packets 0-255 are embedded within
  the horizontal blanking period.
• Transmission Data Count over flow checks the
  number word quantity of user data words UDW
  within an ancillary data packet.
• Ancillary Data Check Sum
• Receive Data Count over flow

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Analog Inputs

• The screen shows YPbPr with tri-level sync on the
  Y luminance component.
• Note analog input formats operate for 14
  different systems.

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Analog Y only

• A closer view is easy to obtain by just toggling
  off the Pb and Pr channel keys the display auto
  optimizes sweep for the Y channel.
• Also note the presence of the analog tri-level
  sync which is not present with digital inputs.
• Note the non-linearity of the Y luminance
  stairstep display by design a characteristic of
  HD.

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Tri-level Sync - a magnified view

• Here we see the sweep set to 2H with a H MAG 1
  factor.
• Tri-level sync first goes -300 mV then reverses
  going to 300 mV.
• Note the middle of tri-level sync as it crosses
  the zero volt axis is the reference for the
  start of a line in analog HDTV.
• The start of a line in digital domain occurs
  before the analog reference with words for EAV,
  ANC, SAV continuing through the last active
  VIDEO DATA word.