Specifications

435B
TEST EQUIPMENT
530
LEADER
®
S
M
SM
®
Monoscope Pattern Generator
The Monoscope Test Pattern was first used by broadcasters to provide a test pattern for receiver
adjustments. It employed a special analog generator, using an engraved CRT with precision
deflection. Digitally synthesized generators followed but were prohibitively expensive. Leader
now offers the 435B, featuring a digitally-generated Monoscope Pattern with wedges calibrated
to read up to 1000 lines of TV resolution –the ideal source to test and offer proof of perfor-
mance for high-performance TV monitors and VCRs. The Monoscope Pattern also offers per-
fect geometry for precise deflection size and linearity adjustments, provides resolution patterns
in the corners to check corner focus, includes a 10-step grayscale to check tonal range and calibrated markers to check line-rate tilt (the cause of
H streaking) and ringing. To round out the 435B’s value as a professional generator, it offers Pulse and Bar Signal for critical Chroma-Delay
checks, a Line Rate Sweep for frequency response, a window signal for Tilt/Shading checks and a Modulated Staircase for Linearity measure-
ments. Both Full-Field and SMPTE Bars are included, and Color Bars may be superimposed on the Monoscope Pattern. Monoscope,
Dot/Crosshatch, Window and Character patterns may be inverted for a negative image.
■ 1000 Line Monoscope Pattern
■ Full-Field and SMPTE Color Bars
■ Pulse/Bar and Modulated 12.5T Pulse
■ Line Sweep with Markers
■ Modulated 5-Step Staircase
■ Dot/Crosshatch
■ Window Pattern
■ Character (Computer Style) Pattern R, G, B, White
and Magenta Rasters
■ RF (CH3/4), Composite Video and Audio Out
401YB NTSC Video Pattern Generator
The 401YB has toggle switches for raster combinations of Red, Green, Blue, Yellow, Cyan and Magenta,
in addition to White and Black. Black burst can be obtained by setting all front panel switches in the
Out position. Outputs are available in Composite, RF CH 3/4, as well as Y/C and RGB TTL, with RGB
Analog available as an option. Considering its capabilities, this stable generator is an excellent value.
■ 11 Test Patterns
■ Full-Field and Split Field Color Bars
■ 8 Color Rasters include White and Black
■ S-Video Output
■ RGB Output (TTL Level)
■ Composite Video + CH3/CH4
■ Dots/Crosshatch/Single Cross
■ Progressive and Interlaced Scan
LT-1607 PC Scan, NTSC Pattern Generator
Little bigger than a paperback book, the LT-1607 provides a precision, stable source of test signals for a wide range
of computer and NTSC monitors. Controls are simple and straightforward, with raster formats called up from keys
labeled with recognized computer formats, such as VGA, MACI3, etc.
Patterns include those most often required to check color operation, deflection size, linearity and centering. On/Off
control of RGB and Sync are useful for monitor adjustments, as Full Field
rasters can be set up in White, Black, Yellow, Cyan, Green, Red, Magenta
or Blue. A feature not included in many service-type RGB generators is
the addition of fully encoded NTSC, as well as Y/C as one of the eight
systems covered. Auto Pattern sequencing steps through the five Pattern
keys twice – once with normal polarity and, again, with all patterns
reversed (Inverted Polarity).
■ RGB Test Source Drives most Computer Monitors
■ Includes Composite and Y/C Drive for NTSC Monitors
■ Compact, Lightweight and DC Powered
■ Tw elve Test Patterns
■ On/Off Control of RGB and H & V Sync
■ Individual RGB Level Control
■ Auto Pattern Sequencing
■ Handles VGA, SVGA, XGA, SXGA, MAC13, MAC16, MAC19
and Composite, Y/C NTSC