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TM20-10RH   20-inch Broadcast Color Monitor

  10-Series High Resolution Delta Gun Color Monitor

Ikegami's 10 Series color monitors are for professional use, and are the culmination of Ikegami's advanced technology and experience ac- cumulated over many years. The high-resolution delta-gun CRT has realized high-resolution, high brightness, and the newly developed convergence circuit greatly facilitates convergence adjustment and operation.
High durability, easy maintenance and high circuit efficiency were particular considerations in designing this series of color monitors, and have resulted in faithful reproduction and stability.
The 10 Series of high resolution color monitors were developed specifically for higher image quality in TV production and are available in 13V and 19V versions.

Cathode Ray Tube
  • Fine Dot Pitch Shadow Mask results in high resolution. Dot trio pitch:
    TM20-10RH 0.43mm / TM14-10RH 0.31mm
  • Delta Gun CRT utilized.
  • American Standard matched phosphors utilized in NTSC configurations.
  • Black Matrix surrounding color dots assures high contrast under bright ambient illumination.
High efficiency convergence circuit includes four individual corner convergence controls.

Beam Feedback System (BFS)
  • To insure long term stability of picture, Ikegami 10 Series monitors utilize Beam Feedback System (BFS) which detects CRT cathode current deviation and eliminates brightness changes due to changes in CRT emission.
Modular construction for easy maintenance.

19-inch rack mountable
  • TM14-10RH's are available in cabinet or rack configurations occupying 10-1/2" height. The
    TM20-10RH configurations are available in cabinet or rack configuration occupying 15-3/4" height.
Functions include;
  • 3 video inputs each with bridging BNC connectors.
  • External sync input with a bridging BNC connector
  • Pulse cross for examination of horizontal and vertical blanking interval.
  • Underscan/overscan selection switch.
  • Switchable AFC time constants for 2 msec, 0.5msec, and 7msec.
  • Push-Button control for degaussing CRT Shadow Mask.
  • Blue phase verification - The BLUE GUN ON/OFF switch facilitates chroma level and hue adjustments.
  • Preset controls for contrast, brightness, chroma level, and hue.
  • Residual sub-carrier verification, for evaluation of input signal condition.
  • Color/monochrome selection switch, to facilitate white balance adjustment.
  • Trap/Comb selection switch
  • Corrective Matrix permits rotation of color decoding vectors towards NTSC aim points.
  • Multi-turn potentiometers are used for R/G/B BACKGROUND controls, G/B" GAIN control, PRESET controls, and HEIGHT/WIDTH controls for easy operation.
  • A tally lamp is provided.
Circuitry
  • Back Porch Clamp circuit in the luminance signal channel prevents black level change when hum is present on incoming signal.
  • Brightness Control System A brightness pulse is added to the sync signal. As a result, the DC component re- mains unchanged and there is little or no effect on the linearity as brightness is varied.
  • Keyed Clamp Circuit -The video signal output amplifier incorporates a feedback clamp circuit which keys the brightness pulse. The DC voltage at the CRT cathode remains stable producing stable black level for varying APL.
  • Protective Circuits -The high voltage, low voltage power supply and deflection circuits contain protection circuitry.
  • Automatic Frequency Phase Control (AFPC) assures extremely accurate color locking.
  • I/Q Axis Precision Demodulation provides faithful color reproduction.
  • R-Y/B-Y outputs available for use of X-Y display as vectorscope.
Remote Controls
  • Video A/B/C
  • Sync INT/EXT
  • Color/Monochrome
  • Tally ON/OFF
  • V-VS control
RGB or Component Input (Optional)
  • When ordering, specify monitor configuration: RGB or Component (R-Y, B-Y and Y). AIJ 9 and 10 Series monitors, except the TM10-9RH, are available in RGB, and soon tc;> be available with Component.
  • Monitors are switchable between Component and NTSC, or between RGB and NTSC. Monitor switching is accommodated through the rear remote connector, with an external control switch.
Controls found in pull-out drawer
TM14-10RH TM20-10RH
Operate-Setup Select Height/Width (Wide and U-Scan)
Tally INT/EXT Power Select Delay Bright
Height/Width (Wide and U-Scan) Aperture
H/V Centering H/V Centering
G/B Gain Convergence
R/G/B Backgiound R/G/B Background
Convergence G/B Gain
  Video Front Selector Cross Hatch
  Video Local or Remote Select
  AFC Select 2ms or VAR (0.5ms or 7ms)
  Residual Subcarrier Verification on/off
  Trap-Comb Select
  Operate-Setup Select
  Matrix In-Out Select
  Tally INT /EXT Power Select
  Hue/Chroma/Brightness/Contras/Preset
Specifications
1 Input Voltage
1.1 Nominal Value: 100-120, 200-240VAC, single phase, Tolerance: ±10%, 50/60Hz
2 Input Power: Approx. 200VA at nominal line voltage
3 Input Signals
3.1 Video Input
3.1.1 Encoded NTSC
Composite (1.0Vp-p nominal) or Non-composite (0.7Vp-p nominal), positive, three (3) each
3.1.2 R/G/B (optional, in addition to 3.1.1)
Non-composite (0.7Vp-p nominal), positive, one (1)set
(requires separate external sync or Green on syrc)
3.1.3 Connection
Bridging BNC connectors, high impedance, isolated from chassis ground (for hum reduction)
3.1.4 Return Loss: 46dB (100KHz-4.2MHz)
3.2 Composite Sync Input
3.2.1 EIA Standard RS-170A
4Vp-p ± 2Vp-p nominal, negative, one (1) each
3.2.2 Connection
Bridging BNC connectors, high impedance
3.2.3 Return Loss: 40dB at 5MHz
3.3 Remote Control (Via 10 pin connector)
Video Input Selector (A/B/C),
Sync Mode (Int/Ext),
Color Killer (Color/Mono),
Tally (On/Off)
4 Vertical Sweep Rate: Nominal 59.94Hz
5 Horizontal Sweep Rate: Nominal 15.7342KHz
6 Scanning
525 lines/frame, 60 fields/sec., 30 frames/ sec. , 2 : 1 interlace
7 Display Device
7.1 Delta Gun, shadow mask, high resolution CRT
TM14-10RH: 13V Dot trio pitch 0.31mm
TM20-10RH: 19V Dot trio pitch 0.43mm
7.2 Chromaticity
7.2.1 Coordinates
  X Y
RED 0.630 0.340
GREEN 0.310 0.595
BLUE 0.155 0.070
7.2.2 Tolerance: ± 0.005
7.3 Brightness: 0-60 ft-L less than 1% size change
8 Video Signal System
8.1 Frequency Response (measured with aperture gain 0, 3.58MHz notch filter removed):
60Hz- 10MHz: flat within +1/-3dB referred to 100KHz at 20Vp-p output level
8.2 Pulse Response
(at each R/G/B amplifier output with 0.05 micro-sec. rise time square wave video input):
Rise time < 0.1 micro.sec. with 250KHz square wave
Overshoot < 10% with 250KHz square wave
Sag < 1% with 60Hz square wave
8.3 Chrominance Rejection Ratio (Aperture OFF, 3.58MHz notch filter ON)
Less than -30dB at color bar signal
8.4 Aperture Correction
8.4.1 Correction Characteristics
Waveform of overshoot of 2T pulse appears symmetrically with 3.58MHz notch filter ON
8.4.2 Frequency Response (referred to 100KHz)
60Hz - 100KHz: < ± 1dB, 1MHz: > ± 2dB,
2.5MHz: > ± 6dB, 3.58MHz: < ± -15dB
8.5 Linearity
Differential Gain < 2% from video input terminal to each R/G/B output terminal for 30 ft-L output
8.6 Black Level varies < 1% when APL is changed from 10% to 90%.
8.6.1 Color temperature stability
Photometric measurements of Red, Green and Blue will produce differential variations less than
1% over a time period of 500 hours.
8.7 Noise (at each R/G/B in active scan period)
Coherent Noise < -46dB, Hum Noise < -55dB, Other < -55dB
9 Color Signal System
9.1 Chroma Signal Frequency Response
(measured at chroma output test point when video sweep signal of 1.0Vp-p composite is
supplied at video input, with 3.58MHz reference) : 2.3MHz-4.9MHz ± 1dB
9.2 IQ Signal Frequency Response
(measured at IQ check test point when video sweep signal of 1.0Vp-p composite is
supplied at video input, with 100KHz reference)
9.2.1 I Channel
60Hz-0.6MHz: ± 0.5dB, 1.3MHz: > -2dB, 3.6MHz: < -20dB
9.2.2 Q Channel
60Hz-0.3MHz: ± 0.5dB, 0.5MHz: > -6dB, 3.6MHz: < -20dB
9.2.3 Pulse Distortion
(measured at IQ check test point when 15KHz square wave signal of 1.0Vp-p composite is supplied at video input)
I, Q Channel Overshoot: 5%, Sag: 3%
9.3 Frequency Range of 3.58MHz Subcarrier
Oscillator Circuit 3.579545MHz ± 200Hz
9.4 Phase Error
Less than 2° for each of the following individual conditions
a) Burst frequency ± 10Hz
b) Burst level change +6, -12dB
c) When 25mV (-28dB) white noise appears on the video signal
d) When the ambient temperature changes by 10°C
9.5 Demodulation Axis Phase Difference: 90° ± 1°
9.6 Delay Correction (Q Channel Reference)
Delay time correction error between luminance and I channel is less than 50nsec.
9.7 Subcarrier Leakage
Rejection ratio of residual subcarrier by the demodulation is less than 25dB.
9.8 Unity Chroma
Voltage difference of each RGB output is ± 3% on standard color bar signal input.
9.9 Color Killer
Automatic operation when burst level is less than 5 IRE.
9.10 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.
9.11 Adjustments
a) Chroma Gain Variable Range: More than ± 6dB of luminance to color signal ratio
b) Subcarrier phase is variable by ± 15°
10 Sync System
10.1 Sync Stability shall be met for the following conditions.
10.1.1 Internal Sync
a) Video input level change of ± 6dB from the rated value to 1.0Vp-p
b) Video amplitude change of 0 to 120% and sync levels greater than -6dB (0.15 to 0.3V sync)
10.1.2 External Sync input: 1-8Vp-p
10.2 Vertical Hold
10.2.1 Oscillator Frequency
The free running frequency of the vertical oscillator shall be variable between 45Hz and 65Hz
(controlled by Vertical Hold Control).
10.2.2 Holding range
Vertical Hold will be maintained between 50Hz and 59.94Hz.
10.2.3 Stability of the free running frequency shall be within 2Hz over the variable range of 45-65Hz.
10.2.4 The interlace ratio shall be ± 5% at all positions of the Vertical Hold Control.
10.3 Horizontal Hold
10.3.1 Oscillator Frequency: The free running frequency of the horizontal oscillator shall be variable
between 13.75KHz and 17.75KHz.
10.3.2 Holding Range
Pull-in range: ± 300Hz, Holding range: ± 1KHz
10.3.3 Stability of the free running frequency shall be within ± 100Hz over the variable range of
13.75KHz and 17.75KHz.
10.3.4 AFC Time Constants: Three (3) Horizontal
Time Constants shall be provided.
10.3.4.1 Front Panel
a) 2msec. b) Variable 0.5msec./7msec.
10.3.4.2 Internal: 0.5msec./7msec.
11 Deflection System
11.1 Amplitude H:± 8%, V:± 50%
11.2 Scanning
11.2.1 NORMAL: Overscan is 1% of CRT effective area at aspect ratio of 4 : 3.
11.2.2 UNDER: Four corners to be visible within boundary of effective area at aspect ratio of 4 : 3.
11.3 Geometric Distortion
11.3.1 Axis Distortion
11.3.1.1 Linearity: less than 0.5% of picture height
11.3.1.2 Geometry: less than 1.5% of picture height
11.3.2 Quadrilateral Distortion
At raster corner. vertical shift is less than 1%.
11.3.3 Convergence
Center (within circle of 80% of picture height): Less than 0.4mm,
Corners (outside area of picturecenter): Less than 0.8mm
11.3.4 Picture Centering Adjustment
11.3.4.1 Vertical: More than 10mm
11.3.4.2 Horizontal: More than 10mm
11.4 Blanking Period
11.4.1 Horizontal Retrace: Less than 9 micro.sec
11.4.2 Vertical Retrace: Less than 1msec.
11.5 Hum Fluctuation
Fluctuation and jitter picture screen is Jess than 0.2mm (0.07%) for hum noise.
11.6 High Voltage
11.6.1 Tolerance: 25kV ± 500V
11.6.2 Regulation: within ± 2% over the range of 0-450 micro.A referred to 150 micro.A
12 Ambient Temperatnre
With cabinet: 0°C - 40°C
Open frame: 0°C - 50°C
90% or less relative humidity (non-condensing)
13 Weight
TM14-10RH: approx. 22kg (with cabinet)
TM20-10RH: approx. 33kg (with cabinet)

Design and specifications are subject to change without notice.
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