LEADER LT416 User 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
k e y s p e c i f i c a t i o n s L T 4 1 6 - C o n t
RF OUTPUT
System
NTSC: M
PAL:B, D, G, H,I, K
SECAM: B, D, G, H, K,L RF is disabled
when NTSC - 4.43 is selected
Carrier Frequency Range
VHF and UHF
Carrier Frequency
Direct setting using programmed country
channel plan
Modulation Polarity
Negative or Positive
Modulation System
Double sideband
Sound Signal
Intercarrier Frequency: 4.5, 5.5, 6.0,
6.5 MHz
Modulation Signal: 1 kHz ± 200 Hz
Output Voltage
VHF:At least 1 mV rms into 75 Ω
UHF:At least 0.5 mV rms into 75Ω
Number of Outputs: 1 75Ω
SOUND OUTPUT
Output Signal
1 kHz ± 100 Hz, sinewave
Amplitude
1.2 V p-p into 600 Ω
POWER REQUIREMENTS
90 to 250 V ac, 50/60 Hz, 15 W max.
PHYSICAL
Size (W x D x H)
16
3
/
4
x 31/2 x 113/4in.
426 x 88 x 300 mm
Weight
10.1 lbs., 4.6 kg
*Only output in SECAM
Y/C OUTPUT
Same as the Composite Signal
Output Impedance / Connector
75 Ω / S type
Y, B-Y, R-Y OUTPUT*
Y Output Amplitude
Sync Signal Amplitude
NTSC/NTSC - 4.43: 286 mV p-p ± 14 mV
PAL:300 mV p-p ± 15 mV
B-Y, R-Y Output Amplitude
525 mV p-p ± 26 mV
Output Impedance / Connector
75 Ω / BNC
R, G, B OUTPUT
Output Signal **
R, G, B,C. SYNC
R, G, B Output Amplitude
700 mV p-p ± 35 mV (NTSC, PAL,
NTSC - 4.43)
C. SYNC Output Amplitude
C-MOS Level (NTSC, PAL, SECAM,
NTSC - 4.43)
Output Impedance / Connector
75 Ω / BNC
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