LEADER LT416 - Manual

NTSC/PAL/SECAM Pattern Generator
■ Conforms to NTSC, PAL, SECAM and NTSC/4.43 MHz Standards
■ Composite and Y/C (4-Pin S-Video Outputs)
■ Component GBR and Y, B-Y, R-Y Outputs
■ 15 Test Patterns Selected for TV, Monitor and VCR Use
■ Flat Field of 8 Colors with On-Off Control of GBR
■ RF Output for VHF/UHF Broadcast by Channel Number ■ Worldwide Channel Coverage in 28 Channel Assignment Plans
Covering 165 Countries
■ Interlaced and Progressive Scans
■ 1 kHz Test Tone for Modulation and Audio Output
■ Composite Sync
■ Variable Video (with Preset) and RF Outputs
LT 416
The ideal test signal source for those engaged in the
production, QC or service of TV/VCR and display systems
that cover international applications, the LT416 handles
NTSC, PAL, SECAM and a hybrid 525/59.94 format that
employs the PAL color system. Features include composite and Y/C outputs with Y, B-Y, R-Y and GBR available
simultaneously. A comprehensive channel assignment
system coordinates modulation based on the chosen
system and the channel plan. Operation is simple and
straight forward assuring efficient application.
k e y s p e c i f i c a t i o n s
TEST PATTERNS
Color Bars
100/0/75/0 full-field color bars
Demodulator Pattern
(No output when the SECAM is selected.)
PAL:
Combination of normal and
reversed B-Y and R-Y for each line
NTSC: Combination of normal and
reversed B-Y, R-Y, I and Q for
each line
Multiburst (100%)
Frequency
NTSC/NTSC - 4.43: 0.5, 1.0, 2.0, 3.0,
3.58, and 4.2 MHz
PAL/SECAM: 0.5, 1.0, 2.0, 4.0, 4.8, 5.5 MHz
Raster
8 colors
Window
100%
Step
10 equal steps from 0 mV to 700 mV
Convergence
Luminance Amplitude
75%
Number of Lines V/H
NTSC/NTSC - 4.43: 17/14
PAL/SECAM: 19/15
Number of Dots
NTSC/NTSC - 4.43: 16 x 13
PAL/SECAM: 18 x 14
Color Burst
On/Off selectable
Interlace/Progressive
Selectable (circle and crosshatch)
Signal Amplitude (100%)
PAL/SECAM: 700 mV p-p
NTSC/NTSC - 4.3: 714 mV p-p
COMPOSITE VIDEO SIGNAL OUTPUT
Color System
NTSC, PAL, SECAM, NTSC - 4.3
Scanning Method
NTSC/NTSC - 4.43: 525 line interlace
PAL/SECAM: 625 line interlace
Field Frequency
NTSC: 59.94 Hz
± 30 ppm
(60.06 Hz
± 30 ppm progressive)
PAL/SECAM: 50 Hz
± 30 ppm
(50.08 Hz
± 30 ppm progressive
NTSC - 4.43: 59.94 Hz
± 150 ppm
(60.06 Hz
± 150 ppm progressive)
Line Frequency
NTSC: 15.735 kHz
± 30 ppm
NTSC - 4.43: 15.734 kHz
± 150 ppm
PAL/SECAM: 15.625 kHz
± 30 ppm
Subcarrier Frequency
NTSC: 3.579545 MHz
± 30 ppm
PAL/NTSC - 4.43: 4.43361875 MHz
± 30 ppm/± 50 ppm
Video Generating System
8-bit digital using 4 fsc sampling
Setup Level
NTSC: 0% (7.5% optionally available)
Output Level
1 V p-p
± 50 mV p-p (sync tip to 100%)
0 to 1 V p-p continuously variable
Output Impedance
75
Ω
Output Connector
Fixed and variable output: RCA jack
Sync Signal Amplitude
NTSC/NTSC - 4.43: 286 mV p-p
± 23 mV p-p
PAL/SECAM: 300 mV p-p
± 15 mV p-p
Color Burst Amplitude
NTSC/NTSC - 4.43: 286 mV
± 23 mV p-p
PAL: 300 mV p-p
± 24 mV p-p
Number of Cycles
NTSC: 9
PAL: 10
NTSC - 4.43: 11
SECAM Color
Amplitude Identification Signal
D’R Line: 540 mV p-p + 40 mV p-p,
-50 mV p-p
D’R Line: 500 mV p-p
± 50 mV p-p
SECAM Color
Amplitude (Back porch on the horizontal
blanking period)
D’R Line: 215 mV p-p
± 25 mV p-p
D’R Line: 167 mV p-p
± 20 mV p-p