HOME TM2019RH

TM20-19RH   20-inch Broadcast Color Monitor

 

Ikegami 19-Series color monitors feature high resolution shadow mask CRT's with self-converging in-Iine guns and American standard matched phosphors or EBU. The 19-Series are available in 13V and 19V, and are engineered to provide superb resolution, excellent stability, easy maintenance and low power consumption in a sleek, streamlined design.

    Cathode Ray Tube
  • Fine dot pitch shadow mask results in high resolution
  • In-Iine self converging electron gun assures convergence stability
  • Controlled Phosphors ( to American Broadcast Standards or EBU) provide consistent and known colorimetry
  • 6500°K color temperature
  • Black matrix surrounding color dots assures high contrast under bright ambient illumination
  • 13V and 19V units available
    Circuitry
  • Beam Feedback System (BFS) assures long-term black level stability by detecting CRT cathode current
  • Wide band R- Y, B- Y precision demodulation provides faithful reproduction of input signal colorimetry
  • Comb filter preserves input signal resolution, switchable to notch filter
  • Keyed back porch clamp prevents black level fluctuation, over 0-100% range of APL
  • Automatic Frequency Phase Control (AFPC) assures extremely accurate color locking
  • Color Killer automatically activated at burst levels below 5 IRE (This function is front panel switchable)
  • Pre-set Operating Controls Hue (NTSC only) Chroma, Brightness, Contrast
  • Variable Aperture Correctioriincreases displayed picture sharpness
  • Regulated High Voltage holds raster size constant within 0.5% over 0-100% range of APL
    System Conveniences
  • 3 Video inputs, 1 AUX input, with front panel selector switching
  • Input Signal Connectors isolated from chassis for hum rejection
  • Looping Video Inputs compensated for 75 ohm distribution system
  • Synchronization to composite input signal (internal) or separate sync (external), front panel controlled
  • Bridging BNC connectors for video and sync inputs
  • 3 Selectable horizontal time constants
  • Tally light, internal or external power
  • Remote operation of video input selector (A/B/C), sync mode (internal/external), color killer (color monochrome) , tally (on/ off)
  • Rack mount (with slides) or cabinet mount
  • Signal and chassis ground can be separated from AC ground
  • R/G/B operation-in addition to encoded input (optional)
    Test Facilities Provided
  • Rotation control to adjust purity when monitor position is rotated
  • R-Y / B-Y outputs available for use of X-Y display switch as vectorscope
  • Pulse delay for examination of horizontal and vertical blanking interval (with automatic delayed pulse brightness increase)
  • Residual sub-carrier test circuit for evaluation of input signal condition
  • Underscan switch to permit observation of picture corners
  • Set-up switch to disable vertical deflection for adjustment of low light white balance
  • Individual switches to disable R-G-B beams
  • On demand degauss circuit Demagnetize shadow mask
    RGB or Component Input
  • 19-Series monitors are available for RGB input, and are also available for component input.
  • Monitors are switchablebetween component and NTSC ot PAL, or between RGB and NTSC or PAL. Monitor switching is accommodated through the rear remote connector, with an external control switch or front panel switch. TM20-19RH : NTSC
    TM20-19RP : PAL
Specifications
General
Input Voltage 1) Nominal Value; 100-120/200-240 VAC, single phase
2) Tolerance; ± 10%
3) Frequency: 50/60 Hz
 Input Power Approx. 150 W at nominal line voltage Input Signals
1) Video Inputs
  • Encoded NTSC or PAL
    Composite (1.0 Vp-p nominal) or Non-composite (0.7 Vp-p nominal), positive, three (3) each
  • R/G/B
    Non-composite (0.7 Vp-p nominal), positive, one (1) set
    (requires separate external sync or Green on sync)
  • Component (Y, R-Y, B-Y)
    Y: VS 1.0Vp-p positive polarity
    V 0.714Vp-p positive polarity, setup 7.5%     R: Y; 0.7Vp-p 75% for color bar signal B: Y: 0.7Vp-p 75% for color bar signal
  • Connection
    Bridging BNC connectors, high impedance
  • Return Loss 46 dB (100 KHz-4.2 MHz)
    • 2) Composite Sync Input
  • EIA Standard RS-170A
    4 Vp-p:t2 Vp-p nominal, negative, one (1) each
  • Connection
    Bridging BNC connectors, high impedance
  • Return Loss 40 dB at 5 MHz
    • 3) Remote Control (via 10 pin connector)
    Video input selector (A/B/C), sync mode (Int/Ext), Color/Mono Selection, Tally (On/Off)

    Vertical Sweep Rate Nominal 59.94 Hz (NTSC), 50 Hz (PAL) Horizontal Sweep Rate Nominal 15.7342 KHz (NTSC), 15.625 KHz (PAL) Scanning 525 lines/frame (NTSC), 625 lines/frame (PAL)
    60 fields/second (NTSC), 50 fields/second (PAL)
    30 frame/second (NTSC), 25 frame/second (PAL)
    2:1 interlace     Display Device 1) In-Iine gun, shadow mask, high resolution CRT
    TM20-19RH/RP: 19V (51 cm) Dot trio pitch 0.43mm
    2) Chromaticity
  • Coordinates
      USA Standard EBU
    X Y X Y
    RED 0.630 0.340 0.640 0.330
    GREEN 0.310 0.595 0.290 0.600
    BLUE 0.155 0.070 0.150 0.060
  • Tolerance ± 0.005

    3) Brightness
    0-60 Ft-L less than 1% size change

    4) Resolution
    TM20-19RH/RP: 700TV lines (at Center)

    • Video Signal System
    1) Frequency Response (measured with aperture gain 0, 3.58 MHz (NTSC), 4.43 MHz (PAL) notch filter removed): 50 Hz-10 MHz: flat within -3-+1 dB referred to 100 KHz at 20 Vp-p output level

    2) Pulse Response (at each R/G/B amplifier output with 0.05psec. rise time square wave video input): Rise Time <0.1psec. with 250 KHz square wave
    Overshoot <10% with 250 KHz square wave
    Sag <1% with 60 Hz (NTSC), 50 Hz (PAL) square wave     3) Chrominance Rejection Ratio (Aperture OFF, 3.58 MHz (NTSC)/4.43 MHz (PAL) notch filter ON)
    Less than -24 dB at color bar signal

    4) Aperture Correction
  • Correction Characteristics
    Waveform of overshoot of 2T pulse appears symmetrically with 4.43 MHz (PAL)/3.58 MHz (NTSC) notch filter ON
  • Frequency Response (referred to 100 KHz)
    60 Hz-100 KHz: <± 1 dB
    1 MHz: >+2 dB
    2.5 MHz: >+6 dB
    3.58 MHz (NTSC) 4.43 MHz (PAL) < -15 dB
    • 5) Linearity
    Differential gain <3% from video input terminal to each R/G/B output terminal for 30 Ft-L output

    6) Black Level Stability
    Black Level varies <1% when APL is changed from 10% to 90%

    7) Noise (at each R/G/B in active scan period) Coherent Noise: < -46 dB
    Hum Noise: < -55 dB
    Others: < -55 dB     Color Signal System
    1) Chroma Signal Frequency Response (measured at chroma output test point when video sweep signal of 1.0 Vp-p composite is supplied at video input, with 3.58 MHz (NTSC), 4.43 MHz (PAL) reference):
    2.3 MHz (NTSC)/3.1 MHz (PAL)-4.9 MHz (NTSC)/5.7 MHz (PAL) ± 1 dB     2) R-Y, B-Y Signal Frequency Response (measured at R- Y, B-Y check test point when video sweep signal of 1.0 Vp-p composite is supplied at video input, with 100 KHz reference ): 3) Frequency Range of 3.58 MHz (NTSC)/4.43 MHz (PAL) Subcarrier Oscillator
    Circuit 3.579545 MHz (NTSC)/4.43361875 MHz (PAL)     4) Phase Error (NTSC only)
    Less than 2° for each of the following individual conditions a) Burst frequency ± 10 Hz
    b) Burst level change +6, -12 dB
    c) When 25 mV ('-28 dB) white noise appears on the video signal
    d) When the ambient temperature changes by 10°C     5) Demodulation Axis Phase Difference 90° ± 1° 6) Delay Correction
    Delay time correction error between luminance and R- Y, B-Y is less than 50 nsec.

    7) Subcarrier Leakage
    Rejection ratio of residual subcarrier by the dE!modulation is less than 25 dB

    8) Unity Chroma
    Voltage difference of each R/G/B output is ± 3% on standard color bar signal input

    9) Color Killer
    Automatic operation when burst level is less than 5 IRE

    10) Effect at Place of Burst Signal
    Phase change of subcarrier is within 3° if time relation of sync and burst blanking is in accordance with FCC requirements (NTSC only)

    11) Adjustments a) Chroma Amplitude Variable Range: More than ± 6 dB of luminance to color signal ratio
    b) Color Phase Variable Range Subcarrier phase is variable by ± 15°     Sync System
    1) Sync Stability shall be met for the following conditions:
  • Internal Sync
    a) Video input level change of :1:6 dB from the rated value to 1.0 Vp-p
    b) Video amplitude change of 0-120% and sync levels greater than -6 dB (0.15V-0.3V sync)
  • External Sync Input: 1-8 Vp-p
    • 2) Vertical Hold
  • Oscillator Frequency The free running frequency of the vertical oscillator shall be variable between 45 Hz and 65 Hz ( controlled by Vertical Hold Control )
  • Holding Range Vertical Hold will be maintained between 50 Hz and 59.94 Hz
  • Stability of the free running frequency shall be within 2 Hz over the variable range of 45-65 Hz
  • The interlace ratio shall be :t5% at a[ positions of the Vertical Hold Control
    • 3) Horizontal Hold
  • Oscillator Frequency The free running frequency of the horizontal oscillator shall be variable between 13.75 KHz and 17.75 KHz
  • Holding Range Pull-in range: ± 300 Hz Holding range: ± 1 KHz
  • Stability of the Free Running Frequency Stability of the free running frequency shall be within ± 100 Hz over the variable range of 13.75 KHz and 17.75 KHz
  • AFC Time Constants
    Three (3) Horizontal Time Constants shall be provided
  • Front Panel
    a) 2 msec.
    b) Variable 0.5 msec./7 msec
    Internal 0.5 msec./7 msec.
    • Deflection System
    1) Amplitude H: ± 8%, V: ± 30%

    2) Scanning
  • NORMAL Overscan is 1% of CRT effective area at aspect ratio of 4:3
  • UNDER Four corners to be visible within boundary of effective area at aspect ratio of 4:3
  • 16.9 Scan (option)
    • 3) Geometric Distortion
  • Axis Distortion
    Linearity: Less than 0.5% of picture height
    Geometry: Less than 1.5% of picture height
  • Quadrilateral Distortion
    At raster corner, vertical shift is less than 1 %
  • Convergence
    Center (within circle of 80% of picture height) Less than 0.3 mm, Corners (outside area of picture center)
    Less than 0.5 mm
  • Picture Centering Adjustment
    Horizontal More than 10 mm
    Vertical More than 10 mm
    • 4) Blanking Period Horizontal Retrace Less than 9 micro sec.
    Vertical Retrace Less than 1 msec.     5) Hum Fluctuation
    Fluctuation and jitter of picture screen is less than 0.2 mm (0.07%) for hum noise

    6) High Voltage Tolerance
    TM20-19RH/RP: 27KV ± 500V
  • Regulation
    Within :± 2% over the range of 0-450 microA referred to 150 microA
    • Ambient Temperature 0°C-40°C (32°F-104°F)
    90% or less relative humidity (non-condensing)     Weight TM20-19RH/RP: approx. 38 kg (83 lbs.) (with cabinet)
    Design and specifications are subject to change without notice.
    Home | All Products | Contact | Site Map