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TM20-18R   20-inch 18 Series Auto Setup Color Monitor

 

The 18-Series high quality, high performance auto setup color monitors are designed for various monitoring requirements, such as professional use at broadcasting and production facilities, corporate video and educational TV systems.

Features
  • The 18-Series monitor is an Auto Setup Unit. By using an optional Auto Setup Probe (ASP- 15), the following functions can be automatically setup at a referenced level or stored in less than 50 seconds.
    1) CONTRAST
    2) BRIGHTNESS
    3) CHROMA
    4) HUE (NTSC only)
    5) RGB BACKGROUND
    6) GB GAIN
  • All switching operations are digitally controlled with no objectional noise on the screen.
  • Two composite video inputs, one R, G, B/Component input, one Y/C input and one external sync input are provided as standard to meet any signal source. The component input levels can be selected for format standard. (SMPTE/N10/Beta).
  • The 18-Series has construction allows circuit adjustment and module removal for internal maintenance during rack-mounted operation without removing from the rack.
  • Feedback Clamp System insures black level and white balance stability.
  • The 18-Series has an automatic degaussing circuit which is operated with power-on. This prevents misconvergence due to shadow-mask magnetization when the monitor is rotated or moved.
  • In-line gun, dot shadow mask CRT assures excellent color reproduction and fine picture with mask pitches: 0.31mm for the 14" and 0.43mm for the 20".
  • CRT protection circuit protects the CRT from damage or burning due to deflection failure and over-voltage.
  • H.DEF./H.V. circuits permit stable raster size at all times against rapid APL change or high brightness signal input.
Specifications
General
Input Voltage AC100-120V/200-240V ±10%, 50/6OHz, single phase
Input Power TM20-18R: Approx. 80W
Ambient Temperature 0°C-40°C (32°F-104°F) 90% or less relative humidity (non-condensing)
External Dimensions(WHD) TM20-18R: 449.6 X 399 X 515 mm (17.7"XI5.7"x20.3")
Weight TM20-18R: Approx. 33 Kg (73 lbs.)
RATING
Input Signal Video: 2 inputs, BNC
R, G, B/1 input, BNC
Y, PB,PR: 1 input, BNC
Y/C: 1 input, 7 pin multi
Sync: 1 input, BNC
Input Level Video Signal: VS 1.0Vp-p V 0.7Vp-p, positive
R, G, B Signal: VS 1.0Vp-p, V 0.7Vp-p, positive
Y, PB, PR Signal: Y.. VS 1.0Vp-p, V 0.714Vp-p / R-Y. 0.525Vp-p B-Y. 0.525Vp-p
Y/C Signal: Y VS 1.0Vp-p, positive C 0.286Vp-p (burst level)
Sync Signal: 4.0Vp-p±2Vp-p, negative
Input Impedance High impedance bridge connection or terminated 75ohms
Remote Controls (8 pin multi-connector) a) Video input select (A/B)
b) VIDEO/YC-select
c) VIDEO/AUX
d) Sync mode select (INT/EXT)
e) COLOR/MONO select
f) Tally (ON/OFF)
g) R, G, B/Y, PB, PR
PERFORMANCE
Resolution (at center) TM20-18R: 600TV lines or more (40ft-L)
CRT In-line gun, Dot-shadow mask CRT with SMPTE phosphors and chromaticity tolerance of ±0.005
Mask Pitch TM20-18R: 0.43mm (horizontal)
VIDEO SIGNAL SYSTEM
Frequency Response Measured with Aperture Gain 0, 3.58MHz notch filter removed: 50Hz-8MHz ±1/3dB (referred to 100KHz)
Waveform Distortion At each R, G, B amplifier output with 0.05usec. rise time square wave video input
Overshoot: 250KHz, 10% or less
Sag: 50Hz, 5% or less Chrominance
Chrominance Rejection Ratio Less than -24dB (aperture correction 0)
Linearity (Differential Gain) Less than 5% from video input terminal to each R, G, B output terminal
Aperture Correction Waveform of overshoot of 2T pulse appears symmetrically with 3.58MHz notch filter ON.
DC Restoration Keyed Back Porch Clamp System
Noise Coherent noise: -40dB
Hum noise: -50dB
Others: -50dB
COLOR SIGNAL SYSTEM
Demodulation R-Y, B-Y system
Chroma Signal Frequency Response Measured at chroma output test point when video sweep signal of 1.0Vp-p composite is supplied to video input:
3.58MHz±0.5MHz ±1/3 dB
Demodulation Axis Phase Difference 90°±2°
SYNC SYSTEM
Sync Stability Stable operation is ensured on the following conditions.
a) Internal Sync Video input level change of ±6dB against the rated value
b) External Sync Sync signal input level between 1 and 8Vp-p
AFC Time Constants SLOW: 2.0msec. FAST. 0.5msec.
DEFLECTION SYSTEM
Scanning Frequency
a) Horizontal 15.734KHz
Pull-in range: ±300Hz Holding range: ±700Hz
b) Vertical Variable between 50Hz and 59.94Hz
Scanning Amplitude
a)NORMALSCAN Overscan is 1% of CRT effective area with an aspect ratio of 4:3.
b)UNDER SCAN Four corners to be visible within boundary of effective area with an aspect ratio of 4:3.
Deflection Distortion (Linearity and Geometry) Less than 2% of picture height
Convergence
a)Picture Center Inside a circle with diameter of 80% of picture height: Less than 0.5mm
b)Picture Corners Outside area of picture center: Less than l.0mm
HIGH VOLTAGE
Tolerance 24KV±1KV
Regulation ±3% over the range of 0 to 450uA referred to 150uA.

Design and specifications are subject to change without notice.
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