1. Do not expose to direct sunlight.
2. Keep the unit away from radiators and other heat sources,
and magnetic fields.
3. Do not place in areas of high humidity or dusty conditions.
4. Always position the unit properly on its built-in feet.
5. Do not stack any objects on top of this unit.
6. Be sure air can circulate freely around the unit.
7. While using this device, if the picture is not clear, try positioning it
further away from the TV.
8. Unplug the unit from the power source when it is not to
be used for several hours or more.
Warnings
1. Built-in On Screen Display indicates the TV system of the
output pattern.
2. Fourteen basic test patterns are provided, which include Circle,
8-step Grey Scale, 16-step Grey Scale, Color Bar, Multiburst,
Color Difference R-Y, B-Y, Moving White Field, White Pattern,
Checkerboard, Crosshatch, Dots, Center Cross, and Purity Patterns.
3. More than 100 different test patterns are available through the
combination of 14 basic patterns.
4. Multiburst pattern comprises full screen definition pattern of 8 vertical
bars at frequencies of 0.1-1.8-2.8-3.0-3.4-3.8-4.8 MHz.
5. Four different speeds are available for the Moving White Field for
testing fast motion picture.
6. Multisystem output suits worldwide TV system:
NTSC 3.58, NTSC 4.43, PAL, PAL M, PAL N,and SECAM.
7. Three video output formats---Composite video, Y/C Separation,
Color Difference Y, R-Y, B-Y.
1
Features
Front panel
Video System Controls
Press the button to choose
NTSC as the output system.
LED illuminates when selected.
Press the button to choose
NTSC 4.43 as the output system.
LED illuminates when selected.
Press the button to choose
PAL as output system.
LED illuminates when selected.
Press the button to choose
PAL M as output system.
LED illuminates when selected.
Press the button to choose
PAL N as output system.
LED illuminates when selected.
Press the button to choose
SECAM as the output system.
LED illuminates when selected.
2
Operating Instruction
Press both buttons simutaneously to turn on the
On-Screen display that indicates
Press again to turn off the On Screen display.
TV system.
The 14 basic patterns and divided into two groups
and Page B).Press the button A allows you to choose patterns that are
grouped into Page A.
(namely Page A
Press the button B allows you to choose
patterns stored in Group B.Patterns in the Page A include Greyscale,
Color bar,Multiburst,Color difference,AVCR and Purity.
Patterns in the Page B include Checkerboard, Crosshatch, Dots,
Center cross, BVCR and White pattern.
Test pattern controls
Press the button to generate the Circle pattern. LED illuminates
when selected. Press the button again to turn off the Circle,
the LED extinguishs accordingly.
Circle pattern can be combined with any other test patterns.
It is stored in both page A and page B.
3
When the Page A is selected, press the button to generate
The Gray scale pattern. There are two (8-step and 16-step)
Greyscales. Press once to get 8-step Greyscale patterns;
press twice to get 16-step. When the Page B is selected
press the button to generate the Checkerboard pattern.
LED illuminates when either one of the pattern is activated.
When the Page A is selected, press the button to generate
the Color Difference patterns.Press once to get R-Y pattern,
press twice to get B-Y pattern. When the Page B is selected,
press the button to genertae the Center Cross pattern.
LED illuminates when either one of the patterns is activated.
When the Page A is selected, press the button to generate
the Color Bar pattern. When the Page B is selected, press
the button to generate the Crosshatch pattern. There are
two types of Crosshatch. Press the button once shows
original Crosshatch.
Press again adds the dots to the Crosshatch. LED illuminates
when either one of the pattern is activated.
Press either AVCR or BVCR to generate the White Moving
Rectangle moving from left to right at the button of the screen.
There are 4 different moving speed to choose from.
Press the button repeatedly will vary the speed of the rectangle.
When the Page A is selected, press the button to generate
the Multiburst pattern. When the Page B is selected. Press
the button to produce a dot pattern. LED illuminates when
either one of the pattern is selected.
When the Page A is selected, press the button to generate
one
Black Red Green Blue Purple Yellow Cyan White
Black
When a color is selected, the LED of the corresponding
color(or colors) will illuminantes.
When the Page B is selected, press the button to generate
the
of the 8 purity patterns. Press the button repeatedly
will toggle through the 8 colors in the following sequence:
color negative of an existing pattern.
Operating Instruction
Rear Panel
Video output
Composite video output.
Y/C Separation output.
Color Difference Y output.
Color Difference B-Y
output.
Color Difference R-Y output.
Fuse: T0.5A/250V
Power socket
Power switch.
4
Operating Instruction
Power and Fuse
Signal Content
Key
Circle
No.
1 .
X
X
X
X
2 .
Center Cross
X
X
X
X
X
X
X
3 .
White pattern
100% white signal
(with color burst)
X
X
X
X
X
4 .
Dots
X
X
5 .
Crosshatch
X
X
X
X
X
6 .
Checkerboard
X
X
X
X
X
X
X
X
7 .
Greyscale
X
X
X
8 .
Multiburst
X
X
9.
Color Bar
X
X
X
X
X
X
5
Survey of Patterns and Applications
White circle on
background
Black circle on
background
black
white
And Border
Castellations on black
or white background
White center indication
top-left indication
(no color burst)
Full screen
Linear staircase signal
with 8 identical steps
from black to white
Full screen definition
pattern of 8 vert. bars
0.8 MHz to 4.8 MHz
Comprises 8 vertical
bars- White, Yellow,
Cyan,Green, Magenta,
Red, Blue and Black
Page
A
Page
B
Application
-Overall linearity
-Overall geometry
-Framing
-Reflections
-Centering TV screen
-Pin-cushion correction
-Deflection linearity
-White setting
-Brightness control
-Beam current of picture tube
-Luminance writing current
-FM demodulator (white level)
-Static convergence
-Focussing
-Static convergence
-Dynamic convergence
-Pin-cushion correction
-E/W-N/S corrections
-Amplitude response
-Focus adjustment
-Horizontal/Vertical synchronization
-Horizontal/Vertical linearity
-Horizontal/Vertical deflection
-Amplitude response, Bandwidth
-Framing
-Main hum interference in
synchronization
-Black/white transitions
-Brig contrast circuitry
-Greysale tracking
-Linearity of video amplifier
-Video bandwidth
-Amplitude response/
resolution
-Overall color performance
-Burst keying
-Subcarrier regeneration
-Matrix circuit check
-RGB amplifiers
-Color delay versus B/W
signal saturation
Signal content
Button Page
A
Page
B
Application
No.
1 0 .
X
X
-Still picture
-Still picture
1 1 .
X
X
X
X
1 2 .
R-Y,B-Y pattern
X
-Linearity of chroma
amplitude
X
-Sensitivity of color amplitude
-Color AGC
-Ratio chroma/Luminance
X
1 3 .
Purity pattern
X
-Select patterns in the
Page A
-Select patterns in the
Page B
X
AVCR pattern
BVCR pattern
-Slow/Quick motion test
-Slow/Quick motion test
3 complementary colors:
Magenta, Yellow,
Cyan
-Interference between
sound and chroma carrier
-Color A.G.C.
-Chroma writing current of
video recorders
-White setting
-Synchronization
X
X
X
X
X
1 4 .
Page A selection
Page A selection
1 5 .
X
6
Moving white
rectangle
different speed
at 4
Moving white
rectangle
different speed
at 4
Saturation step signal
16 steps of linearly
decreasing chroma
R-Y and B-Y
3 primary colors:
Red, Green, Blue
Addition white (100% Y)
Black
-Purity checks and adjustment
-Recording performance
-Recording performance
Application of the test patterns
Signal Content
Buttons pressed
No.
1 .
2 .
and border
3 .
4 .
White dots
Black background
5 .
Crosshatch 1
Crosshatch 1
and Circle
Crosshatch 2
Crosshatch 2
and Circle
6 .
7 .
8 .
9 .
White circle
Blackground
Black circle
White background
Circle
Circle
Center cross,
Circle and border
Dots
Center cross
Dots, Circle
1 0 .
7
Combination of the patterns
16-step Greyscale
Color Bar
Signal Content
Buttons pressed
No.
1 1 .
1 2 .
1 3 .
1 4 .
1 5 .
1 6 .
1 8 .
1 9 .
2 0 .
Checkerboard
Ckeckerboard
and Circle
Ckeckerboard,
Circle and BVCR
1 7 .
8
Pattern Combinations
Crosshatch 1,
Circle and BVCR
Crosshatch 2,
Circle and BVCR
Dots,Circle
and BVCR
8-step Greyscale
Multiburst
Signal Content
Buttons pressed
No.
2 1 .
2 2 .
2 3 .
2 4 .
2 5 .
2 6 .
2 8 .
2 9 .
3 0 .
2 7 .
R-Y Pattern
B-Y Pattern
Greyscale and
Color bar
Greyscale and
Multiburst
Color bar and
Multiburst
Greyscale
Color bar and
Multiburst
Greyscale
Color bar and
Multiburst and R-Y
9
Pattern Combinations
8-step Greyscale
and Circle
16-step Greyscale
and Circle
Color bar and
Circle
Signal Content
Buttons pressed
No.
3 1 .
3 2 .
3 3 .
3 4 .
3 5 .
3 6 .
3 8 .
3 9 .
4 0 .
3 7 .
Multiburst
and Circle
R-Y and Circle
B-Y and Circle
Greyscale,
Color bar and
Circle
Greyscale,
Multiburst and
Circle
Color bar,
Multiburst and
Circle
Greyscale,
Color bar,
and
Multiburst
Circle
Greyscale,
and R-Y
Multiburst,Color bar
Greyscale,
and AVCR
Color bar, Circle
Greyscale,
and AVCR
Color bar,
Multiburst, Circle
1 0
Pattern Combinations
Color
System
Basic Patterns
Circle
One white circle on black background in the center
of the screen.
Center Cross
White center cross and black/white border castellations
for 3% over scan indication.
Dots
17X13 (
) , 17X12 (6
)
525 line systems
25 line systems
Crosshatch
17X13 (
) , 17X12 (6
)
525 line systems
25 line systems
Checkerboard
8-step linear Greyscale, 16-step linear Greyscale
Greyscale
Multiburst
Full screen definition pattern of 8 vertical bars
0.1-1.8-2.8-3.0-3.4-3.8-4.8MHz
VCR Pattern
1/6 vertical white rectange 4 different moving speed.
Color Bar
Full field color bar pattern with vertical bars begin with
White-Yellow-Cyan-Green-Magenta-Red-Blue-Black
Color Difference
16 steps of linearly decreasing R-Y and B-Y
Purity
3 Primary colors:Red, Green, Blue
3 Complementary colors Magenta, Yellow, Cyan,
Additional white (100% Y),Black.
Composite Video Output (BNC Connector)
Output level
1Vp-p,75
Signal level
714mV,75 (525 line systems) 700mV,75 (625 line )
Sync level
286mV,75 (525 line systems) 300mV,75 (625 line )
N T S C 3 . 5 8
N T S C 4 . 4 3
P A L
P A L - M
P A L - N
S E C A M
Horizontal
Frequency
Vertical
Frequency
Color
Subcarrier
1 5 . 7 3 4 K H Z
1 5 . 6 2 5 K H Z
5 9 . 9 4 H Z
5 0 H Z
3 . 5 7 9 5 4 5 M H Z
4 . 4 3 3 6 1 9 M H Z
3 . 5 7 5 6 1 1 M H Z
3 . 5 8 2 0 5 6 M H Z
1 5 . 7 3 4 K H Z
1 5 . 6 2 5 K H Z
1 5 . 6 2 5 K H Z
1 5 . 7 3 4 K H Z
5 0 H Z
5 0 H Z
F o R = 4 . 4 0 6 2 5 0 M H Z
F o B = 4 . 2 5 0 0 0 0 M H Z
4 . 4 3 3 6 1 9 M H Z
TV System
Horizontal
Lines
5 2 5
5 2 5
5 2 5
6 2 5
6 2 5
6 2 5
5 9 . 9 4 H Z
5 9 . 9 4 H Z
1 1
Full field checkerboard with 8x6 Black/White block.
Specifications
Y/C Separation output(4 pin mini-Din Connector)
Y output level
C output level
1Vp-p,75Ω
100% ,75Ω
Color Difference output
Y output level
1Vp-p,75Ω
R-Y level
B-Y level
0.7Vp-p,75Ω
0.7Vp-p,75Ω
Environmemtal Condition
Operating Temperature
Storage Temperature
Operating Humidity
Storage Humidity
+5ºC to+40ºC
-20ºC to+60ºC
20 to 80%
5 to 95%
Power Supply
Voltage
Frequency
Power Consumption
Approx. 3W
100~240VAC
50~60HZ
Dimensions
Length
Width
Height
280mm
180mm
70mm
Weight
Accessories
Approx. 1.7kg
Specifications subject to change without notice
1 2
Specifications
Operation manualx1,AC Power cable x1
LPM-55
VIDEO PATTERN GENERATOR
NTSC
NTSC4
PAL
PAL-M
PAL-N
SECAM
A
B
GREY
SCALE
COLOR
BAR
MULTI
BURST
R-Y
B-Y
A
VCR
B
VCR
PURITY
DISPLAY
VIDEO SYSTEM
PATTERN
R
G
B
LPM-55
OPERATION MANUAL
Multisystem Video
Pattern Generator
