TV & MONITOR PATTERN GENERATORS

TV & MONITOR PATTERN GENERATORS
GV-798/898
TV PATTERN GENERATORS
Multistandard and Multisystem TV Signal Generators GV-798 and GV-898, have the widest selection of functions for an instrument of this type. 37 different
patterns, including 16:9 format, are the base over which different configurations can be designed. Those settings can then stored in 32 memories for later
immediate recall.
All the functions can be selected on three different menus presented on a backlighted graphic LCD display.
The instrument includes the possibility to program two different colour logotypes that can be moved. It does also include a clock and possibility to display
different prestored messages.
All common interface connectors such as S-VHS, RGB, SCART…. are available on the rear panel. The RS-232 interface is specially useful being bidirectional to
control the instrument and for data exchange.
37 PATTERNS TO SATISFY ANY TEST NEEDS
Complete pattern 4:3
Complete pattern 16:9
FuBk pattern ,PAL system
Colour bars 100/0/75/0
VITS CCIR 17, B/G/L/D/K
VITS CCIR 330 B/G/L/D/K
Purity: red
Purity: green
Purity: blue
Pluge, B/G/I/L/D/K
Sin X/X, B/G/I/L/D/K
Ramp
Checker board, 4:3
Centred
Convergence, 4:3
Window
Grey scale, 5 levels
Grey scale, 10 levels
Multi-Burst, B/G/I/L/D/K
GV-798/898
TV PATTERN GENERATORS
VIDEO & AUDIO CONFIGURATION
SYNTHESISED RF OUTPUT
The tuning can be through frequency or channel
according to the selected standard (CCIR, STDL,
OIRT or FCC).
32 CONFIGURABLE MEMORIES
They allow to automatic selection of the prestored
configurations.
FORMAT SELECTION
The format can be selected 4:3 or 16:9
SOUND MODULATION
Sound modulation can be selected among MONO,
ZWEITON (B,G,D,K,M) and NICAM (B,G,I,L).
The modulated signal can be internal or external
(except NICAM) and any of the channels (L o R)
can be removed. In the stereo modulations, the
second carrier can be stereo or dual.
OUTPUT LEVEL
The output RF signal level is adjustable in 1 dB
steps. Maximum attenuation being 60 dB.
MULTISTANDAR
Systems available are: PAL (B,G,I,D,K), NTSC
(M) and SECAM (L,D,K). Others are available
upon request.
TELETEXT, VCR SYNCHRONISATION SIGNALS (VPS AND PDC), CLOCK AND INTERLACED CONFIGURATION
TELETEXT
It contains an index page and four data pages in 4
languages (English, Spanish, French, German).
Includes Clock Cracker.
CLOCK
When Clock is
turned on, this
information
appears at the on
the right hand
lower corner on all
patterns..
VCR SYNCHRONISATION SIGNALS
The VPS (Video Program Service) and PDC
(Program Delivery Control) signals are information delivered by broadcasters during the
transmission of the program to synchronise the
turn on and off on compatible videos.
INTERLACED
This turns on and off the interlacing.
WSS (Wide screen Signal) This signal actuates on 16:9 receivers incorporating this feature. It is possible
to generate eight different combinations for the 4:3, 14:9 and 16:9 formats.
SYNCRONISMS, LOGOTYPES, EUROCONNECTOR-SCART AND TEST SIGNALS (VITS) CONFIGURATION
SYNCHRONISM SELECTION
It is possible to select the polarity of the horizontal
and vertical synchronism independently. It is also
possible to activate the synchronism in the G
output.
EUROCONNECTOR CONTROL
The FSTBK (Fast Blanking) signal activates the
RGB inputs on television sets. The SWITCH
signal activates audio and video on the
Euroconnector.
LOGOTYPES GENERATOR
It is possible to
insert 2 colour
logotypes of variable
sizes on any of the
test patterns. They
can be moved to
different positions
within the pattern.
TEST SIGNALS (VITS)
This function allows the activation of test signals for CCIR, UK and FCC standards.
VESTIGIAL SIDE BAND MODULATOR
Both TV Generator, the GV-798 and the GV-898,
offer the same features regarding test patterns and
possible configurations. The difference is in the
modulation type used. The GV-798 modulates the
TV signal in Double Side Band and the GV-898
modulates in Vestigial Side Band. With GV-898 the
simulation of the on-air transmitted signals is optimal
since this is the system used in broadcast of analogue
sygnals.
Both generators have 1 dB step adjustable output
levels..
GV-798/898
SPECIFICATIONS
TV PATTERN GENERATORS
GV-798/898
Video Carrier
Resolution
50 kHz, 10 kHz (GV-898)
Tuning
By channels or by frequency through the
rotary selector. Channel tables: CCIR, STDL,
OIRT and FCC.
Storage
In any of the available 32 memories
75Ω
Amplitude
2.5 Vpp
Connector
BNC
Horizontal pulse output, H
Impedance
75Ω
Amplitude
2.5 Vpp
Connector
BNC
Vertical pulse output, V
RF Output
Output level
80 dBµV
Attenuation
Up to 60 dB in 1 dB steps
Frequency range
35 to 900 MHz, 35 to 850 MHz (GV-898)
Video modulation
Impedance
Impedance
Amplitude
2.5 Vpp
Connector
BNC
AM-VSB (Vestigial Side Band)
Crominance
DSB (Double Side Band GV-898)
PAL NTSC
Polarity
Negative except in SECAM L (positive)
Modulation index
80 %, 90 % (GV-898)
Impedance
75 Ω
75Ω
TV systems
PAL B/G/D/K/I, NTSC M
PAL B/G/D/K/I/M/N NTSC M (GV-898)
Subcarrier frequency
4.433619 MHz PAL B/G/D/K/I
3.579545 MHz NTSC M
Video
3.575611 MHz PAL M (GV-898)
Video input
Impedance
75 Ω
Voltage
1 Vpp
DC component
-2 V to +2 V
Maximum DC component
±3 V
Polarity
White Level positive
Coupling
AC with internal fixing
Video Output
Impedance
75 Ω
Voltage
1 Vpp
Polarity
White Level positive
Coupling
DC
Black level
0 V ± 0.2 V
Blackburst otput
3.582056 MHz PAL N (GV-898)
Tolerance
< 4 ppm from 0 to 70º
SECAM
TV systems
B/G/L/D/K
Subcarrier frequency
F R= 4.406250 MHz
º
F B= 4.250000 MHz
º
Identification pulses
Frame
Amplitude D’R
540 mV
Amplitude D’R
500 mV
Line
Amplitude D’R
215 mV
Amplitude D’R
167 mV
Subcarrier blanking
5.6 µs
Impedance
75 Ω
Synchronisms polarity
Negative
Power supply
Level
0.45 Vpp
Mains voltage
Connector
BNC
Mains frequency
50-60 Hz
Consumption
40 W
RGB outputs
Impedance
110-125-220-230-240 V AC ± 10%
75Ω
Amplitude
0.7 Vpp
Operating environmental
Synchronisms in G
0.3 Vpp (seleccionable ON/OFF)
conditions
Connector
BNC
Altitude
Up 2000 m
Black level
0 V ± 0.2 V
Temperature range
From 5ºC to 40ºC
Maximum relative humidity
80 % (to 31ºC), decreasing lineally up to l
50% to 40ºC.
Scart
S-VHS
Impedance
75Ω
Amplitude
Luminance
1 Vpp
Crominance
0.3 Vpp
Connector
Synchronism
Synchronisms output, CS
S-VHS
Mechanical features
Dimensions
W.228 x H. 102 x D. 307 mm
Weight
5.6 kg, 5.8 kg (GV-898)
Included accesories
Mains cord model CA-05
Options
OPT-798-01
OPT-898-01
GV-698
TV PATTERN GENERATOR
The GV-698 video generator is a multi-standard, multi-system unit with
advanced functions. Its modular structure makes it highly versatile, since it
is possible to increase the applications of the instrument by adding modules.
The generator is particularly suitable for those industrial sectors that require
high-quality pictures such as adjustment and analysis lines, production
studios, technical assistance services, etc. Because it is easy to operate, it is
indispensable in the training of video technicians.
The video is equipped with 32 pattern charts to analyse the picture visually
or with an oscilloscope. For geometric adjustments, the electronic circle can
be inserted in all the charts.
To detect defects in the tuning circuits and IF amplifier stages, the GV-698
has a complete synthesized radio-frequency modulator.
The GV-698 is controlled by a microprocessor and, with its wide 16-character display and incorporated encoder, selection is simple and easy. The
microprocessor controls such functions as the selection and display of the
RF output by channel or by frequency, the selection of the colour system
and sound standard, the selection of the output chart and the storage of 32
programs.
For a superior analysis of the video and sound signal, there are push-buttons
located on the front panel for canceling or including certain basic functions,
such as:
- Cancellation of the colour subcarrier, of the burst, of the sound subcarrier, of L and R sound, and of the TELETEXT and VPS signal.
- Inclusion of the electronic circle
- Option to eliminate the interlace in the video signal
- Selection of stereo or dual sound
- Selection of the information to transmit in the VPS signal
Multistandard
Colour TV signals differ from country to country. The most common
systems are PAL, SECAM and NTSC. Furthermore, there are various
standards within each system which differ regarding the sound carrier frequency and other points. The GV-698 operates in accord with the CCIR
recommendations for the PAL, SECAM and NTSC systems, incorporating
up to nine standards in a single instrument. Therefore, it is particularly
appropriate in circumstances where various systems and standards are in
use, a situation that is becoming more and more common due to the increasing popularity of satellite TV.
Frequency synthesis
In the GV-698, the frequency synthesis technique is used, which ensures
high stability and accuracy. Frequency is indicated on the display with a
five-digit resolution. The tuning can be done by channel or by fine
adjustment in the 37 to 865 MHz range, with a 50 kHz resolution. It is also
equipped with 32 memories.
Display
The 16-character display has five readings, four of them simultaneous: the
frequency, with a five-digit indication, the program, the colour chart, the TV
system and sound standard, and the channel indication.
GV-698
TV PATTERN GENERATOR
Test signals
make the instrument ideal for multiple applications.
The GV-698 model generates 32 test signals, notable among which are two
monoscope-type charts. The test patterns include monoscope, colour bars,
various combinations of test signals, red, green and blue screens, R-G-B bars,
grey range, multi-burst, high voltage test, grid, antipal and 50% Y, antipal
with U/V axis, chrominance/luminance delay test, dots, and others, which
Logotype generator
The GV-698 has a three-logotype generator with a 64-line resolution (1040
points/54 µs). As an option, these logotypes can be custom-programmed
according to the specifications of the customer.
Teletext
During recent years, there has been a growing acceptance of TELETEXT
on the part of users, and the majority of modern televisions incorporate it.
With the GV-698, it is possible to generate 8 pages of teletext in two
languages, which can be selected from the television set, with different
combinations of graphics and text in levels 1.0 and 1.5, as well as the FLOP
or FASTEXT function. Therefore it is possible to analyze all the decoding
functions and guarantee the proper operation of the equipment being tested.
External connections
There is an adjustable composite video output and an RF output with an attenuator of up to 50 dB.
In addition, numerous auxiliary inputs and outputs increase the possibilities of the instrument considerably. These supplementary connectors are located on the
rear panel.
-
Y-C (S-VHS) output
R, G and B (or G plus synchronisms) outputs
Composite synchronism output
Synchronism output for an oscilloscope
L and R sound input
In the EUROCONNECTOR, with composite video, R, G, B and sound outputs,
and inputs for L and R sound and video (external signal modulation).
SPECIFICATIONS
SPECIFICATIONS
Standard TV
Display
Video carrier
Frequency
Tuning
TV PATTERN GENERATOR
GV-698
PAL
B, G, H, D, K, I (M, N version /6, /8)
NTSC M
SECAM B, G, H, D, K, K1, I, L (version /3, /5, /11)
Digital, 16 characters with frequency indicator (5 digits), channel, TV standard, pattern
and sound system indication. Program indicated in the store / recall mode)
Store / recall
RF output
Attenuation
Synthesized, 37 a 865 MHz
By frequency: 50 kHz steps
By channel: CCIR (see versions)
32 programs
≤ 10 mV (80 dBµV) on 75 Ω
50 dB, 10 dB steps
Video modulation
Type of modulation
(except SECAM / L)
Modulation index
AM, double side-bandl
AM positive, double side-band (/3, /5 version)
85 %
Sound
External sound input
Bandwidth
Connector
Output
Multistandard mono sound
Carrier
Frequency
(sincr. frec. línea)
V/A ratio
Type of modulation
Logotype generator
Logotype
Format / resolution
Special logotypes 1
Selectable by switch
100 Hz to 15 kHz
DIN 41524 or Euroconnector (100 kΩ)
Euroconnector (1 kΩ)
Selectable On / Off
4.5 MHz (M)
5.5 MHz (B, G, H)
6.0 MHz (I)
6.5 MHz (D, K, K1, L)
13 dB
FM (M, B, G, H, D, K, K1, I)
AM (L)
Up to three diferent logotypes
64 lines (1040 dots / 52 µs)
Factory programmed according to the user's
specifications.
VTR testing
Format
Shift speed
8-position mobile rectangle
1 position per image field
Stereo/Dual Zweiton sound1
Modes
On / Off selection
Frequency
V/A ratio
Type of modulation
(On / Off selectable)
Dual, stereo
Carrier 1
5.5 MHz
13 dB
FM int. (1 kHz)
FM ext.
Stereo/Dual Nicam sound 1
Carrier
PAL B, G
PAL I
V/A ratio
Modulation
Modes
Channel 1
Cannel 2
Transmission
Spectrum shape
Carrier 2
5.7421875 MHz
20 dB
FM int. (3 kHz)
FM ext.
On / Off selectable
5.850 MHz ± 5 Hz
6.552 MHz ± 5 Hz
20 dB
4 QPSK
Mono, dual, stereo
1 kHz On / Off selectable
3 kHz On / Off selectable
728 kbits/s
40 % roll-off cosine
(PAL B, G)
100 % roll-off cosine (PAL I)
Teletext and VPS generator1
Teletext
Frequency
Transmission
Contents
VPS
Frequency
Transmission mode
Level "0"
Level "1"
5.0 MHz
Biphase
Black level
66 % ± 5 % of white level
Video output
Amplitude
Nominal value
Polarity
Blanking cont. level
Connector
Variable 0 to 1.3 V
1V
Positive, DC coupling
0 V (nominal)
BNC and Euroconnector (75 Ω)
Y-C component output (S-VHS)
Amplitude
Connector
0.7 Vpp (white level in luminance)
0.3 Vpp (crominance burst)
S-VHS 4 pins (75 Ω)
R-G-B Outputs
Amplitude
G synchronism
Connector
0.7 Vpp
0.3 Vpp (On / Off selectable)
BNC and Euroconnector (75 Ω)
Synchronisms output
Polarity
Connector
Positive or negative (selectable)
BNC (75 Ω)
Oscilloscope trigger output
Amplitude
Connector
Vertical and horizontal
BNC (75 Ω)
Video input
Impedance
Amplitude
Coupling
10 kΩ
1 Vpp máx.
DC
Power supply
Mains voltage
Consumption
110-125-220-230-240 VAC / 50-60 Hz
20 W
Mechanical features
Dimensions
Weight
W. 288 x H. 102 x D. 247 mm
3 kg approx.
Versions
GV-698
GV-698 / 1
GV-698 / 2
GV-698 / 3
GV-698 / 5
GV-698 / 6
GV-698 / 8
GV-698 / 11
GV-698 / 64
Options
OPT-698-01
OPT-698-02
OPT-698-03
OPT-698-04
Included accessories
1
Opcional. Ver opciones para realizar pedido
On / Off selectable. Levels 1 & 1.5
6.9375 MHz (444 * Fh)
NRZ (non return to zero)
8 different pages (two languages :spanish
and english), sent consecutively.
PAL / NTSC. Channels CCIR
PAL / NTSC. Channels FCC
PAL / NTSC. Channels OIRT
PAL / NTSC / SECAM. Channels CCIR
PAL / NTSC / SECAM. Channels OIRT
PAL N / NTSC. Channels FCC
PAL M / NTSC. Channels FCC
Complete PAL / NTSC / SECAM. channels. Options 02 Zweiton, 03 Zweiton, -3
Teletext and VPS, -4 Nicam
NICAM B/G, NICAM L, Teletext
(CEEFAX) in PAL and SECAM
Special logotypes programming
Zweiton sound
Teletext / VPS
Nicam sound
Instructions manual, BNC/TV coaxial
cable, mains cable, spare fuse
GV-298
SPECIFICATIONS
TV standard
Display
Video carrier
Frequency
Tuning
TV GENERATOR
GV-298
PAL B, G, H (D, K, I, N see versions)
16 digits, with frequency, channel indication, (5 digits) and pattern.
RF output
Attenuation
Connector
Sinthesized, 37 to 865 MHz
By frequency: 50 kHz steps
By channel: CCIR
80 dBµV ± 3 dB on 75 Ω
60 dB in 20 dB steps
BNC (75 Ω)
Video modulation
Type of modulation
Modulation index
V/A ratio
AM, double side-band
85 %
13 dB
Sound modulation
Carrier modulation
Type of modulation
Drift
5.5 MHz, On / Off selectable
FM, internal modulation at 1 kHz
± 30 kHz
Test patterns
100 % white pattern
Grid with an electronic circle
Points
Checkerboard
Colour bars
Red pattern
Green pattern
Blue pattern
Anti-PAL patterns, to clear R-Y switching
Video output
Amplitude
Polarity
Connector
1 Vpp
Positive
BNC and Euroconnector (75 Ω)
R-G-B outputs
Amplitude
Connector
0,7 Vpp
Euroconnector (75 Ω)
The GV-298 video generator builts in exceptional features; the newest
trends of modern technology have been applied in its design.
Its application field is reaching every service where a professional featuring
idea is requested, to fulfil top requirements both in the synchronism stage
and the colour and radiofrequency one.
A profitable equipment
Therefore, this device, easy to operate and strong, is especially indicated in
fulfilling the closest needs in Technical Assistance Services (TAS). With
the GV-298, ambivalence of TAS' professionals will find a first class
partner both in workshop tasks and field repairs and installations.
Additional functions
The GV-298 is provided with 8 different patterns, to make basic settings in
any receiver as well as to sense any abnormality by overviewing a picture.
Furthermore, the GV-298 includes four additional functions, to be added or
cleared in every pattern, at will. These controls refer to picture interlacing,
chroma subcarrier, sound and PAL commutation.
Oscilloscope trigger output
Signal
Vertical and horizontal
Connector
BNC (5 kΩ)
Low frequency signal
Amplitude
Frequency
Connector
250 mVpp
1 kHz
Euroconnector (10 kΩ)
Power supply
Mains voltage
Consumption
110-125-220-230-240 VAC / 50-60 Hz
8W
Mechanical features
Dimensions
Weight
W. 212 x H. 102 x D. 241 mm
2,25 kg
Versions
GV-298
GV-298 / 2
GV-298 / 4
GV-298 / 6
Included accessories
RF synthesized output
Sintetized radiofrequency stage covered range is from 37 MHz to 865 MHz.
PAL B, G, H, CCIR Channels
PAL D, K, OIRT Channels
PAL I, CCIR Channels
PAL N, FCC Channels
Instructions manual, BNC/TV coaxial
cable, mains cable, spare fuse
This is used to sense any deficiency of the tuner and/or the IF amplifier of
the analyzed receiver. A three cell attenuator is used to attenuate up to 60
dB maximum, in 20 dB steps. Frequency (5 digit resolution), pattern and
selected channel are reflected in the 16 character digital display.
VG-90/GC-981B
PORTABLE GENERATORS
VG-90
This PAL system colour video signal generator has been specially designed for service operation and set
up of video systems such as colour monitors with CCVS (Colour Composite Video Signal) inputs or RGB
single inputs with separate synchronism, or included in the G channel. It can be used also in mixing desks,
colour decoders and others.
For its pocket format, and the feed by rechargeable NiCd batteries this instrument is specially intended for
on-site work, even though its many functions and the supplied AC adapter provide excellent features to
use it as a desk top equipment.
Moreover, it supplies composite synchronism signals and frame pulses independently, whether with positive or negative selection. An electronic circle is included to set up the picture geometry accurately.
GC-981 B
The GC-981B colour TV generator is specially designed for PAL system colour TV sets maintenance and calibration at user's home.
Supplied signals fit to very rigorous norms. They allow to check and control both colour and B/W TV sets. In this
new version, a circle picture is included that permits geometry adjustments, as it is available in all other pictures.
The design includes up-to-date CMOS technology. Its low consumption gives on enough range to cover about an
8 hour intermittent service.
Its light weight and small size, and the feed by rechargeable batteries allows it to be included in the tool hand case
easily, thus enabling its availability.
SPECIFICATIONS
GC-981 B
RF output
Frequency range
Output amplitude
Impedance
Modulation
Sound
VG-90
Video
RGB outputs
Synchronism outputs
Frame
Composite
Supplied signals
Common
Test patterns
BI
47 to 65 MHz
BIII
175 to 217 MHz
BIV-V
470 to 860 MHz
5 mV
75 Ω
Negative on double side-band
5.5 MHz internal FM modulation
1 Vpp (75 Ω)
1 Vpp (75 Ω)
1.5 Vpp (75 Ω)
1.5 Vpp (75 Ω)
Video with/without synchronism
R signal
G signal with/without synchronism
H+V positive / negative synchronism
Positive / negative frame pulses
System
Subcarrier frequency
Line frequency
Frame frequency
Power supply
Internal
External
Consumption
Mechanical features
Dimensions
Weight
Included accessories
Points, grid, gray scale, red pattern, green
pattern, blue pattern, magenta pattern, cyan
pattern, yellow pattern, normalized colour
bars, electronic circle included in all pictures.
PAL B,G,H (I,D,K optional)
4.433619 MHz
15,611 Hz
50.30 Hz
NiCd 9V battery
9-12 VDC 85 mA by EXT. POWER
UR-9B (220 V AC)
0.54 W (battery)
0.94 W (external suply)
W. 83 x H. 178 x D. 34 mm
0.35 kg
3 coaxial cables with BNC/Jack connector,
carrying bag, instructions manual, UR-9B
unit
GV-241
MONITOR TEST GENERATOR
In the world of monitors for computers, unlike those for television, there is a multiplicity of different systems involved. The scanning frequencies and the resolution, that is, the number of pixels they can display, vary widely from one system to another; furthermore they are being developed at a dizzying speed. Thus, for example, it is not difficult to find on the monitor market simple and almost-forgotten models like the
Hercules or sophisticated like that `sun 1600 x 1028´.
As a consequence of such a diversity of models, the repair of these monitors poses a major difficulty, and that is why a demand exists for versatile instruments capable of generating all the systems now on the market. To satisfy this demand PROMAX has designed the GV-241, a universal generator for the testing of computer monitors, which greatly facilitates their adjustment, control and repair.
The video signal
The information required to display a picture on the computer monitor
travels in what is known as the video signal. We can divide the video signal
into its components for the purpose of classifying and differentiating
between graphics systems. We have information on the duration of the lines
that compose the picture (horizontal scanning), information on the number
of lines that compose each picture (vertical scanning), on the time it takes
the electron beam to retrace to write a new line (horizontal blanking) and
the time it takes the electron beam to move from the last line to the first line
of the new frame (vertical blanking). Each of these components can, in turn,
be sub-divided into a main element, known as the synchronism, and the
periods before and after the synchronism, known as porch times, which
must also be defined if we want to identify a particular system. Thus, we
have the front porch time, the synchronism, and the back porch time. The
polarity of the synchronisms (positive or negative) and whether or not the
lines that compose the picture are interlaced are parameters that also play an
important role.
In short, to unequivocally define the video signal associated with a specific
graphics system, we must know the following parameters.
The GV-241 is able to manage all of these parameters in a way that is truly
comfortable for the user, who can select each of the graphic systems
through the display of the instrument with no need for concern about what
combination of specific parameters should be used.
Versatility
The GV-241 provides up to 29 possible graphics systems, which are
divided into two groups in order to facilitate selection. The signals obtained
with this generator are truly reliable in terms of synchronism periods, and
both line and frame blanking periods.
Multiple outputs
The GV-241 offers three types of connectors for direct connection to the
monitor: the D9 is for Hercules, CGA and EGA monitors; the D15 miniature is for VGA monitors, and the D15 is for the MAC II monitors. In addition, there are the individual outputs: R, G (with manual synchronism
select), B, CVS (video without synchronism), VS (vertical synchronism)
and CS (composite synchronism) through BNC connectors.
- Horizontal and vertical scanning periods or frequencies
- Horizontal and vertical scanning front porch time
- Horizontal and vertical scanning back porch time
- Horizonal and vertical synchronisms
- Polarity of the synchronisms
Multiple outputs
- Interlace
The GV-241 allows the user to change the system, the chart and the synchronism polarity easily and conveniently, by means of the push buttons on
the front panel.
The display always shows the information on the systems group (first or
second), the chart (1-8) and the name of the system selected.
GV-241
MONITOR TEST GENERATOR
Charts Available
The GV-241 is equipped with eight pattern charts (shown on the front panel) which can be selected for any of the graphics systems generated. Each of them enables
a particular adjustment or the detection of defects in the various modules of the monitor through simple observation of the resulting picture or of the video signal
with an oscilloscope.
(2)
(1)
(3)
(1), (2), (3), (4), Colour bars (100/0/100/0), Red, Green
and Blue.
Verification of the colour array. Saturation in optimal
conditions for the adjustment of contrast and brightness.
Verification of the uniformity or intensity of the colour on
the entire surface of the monitor screen.
(4)
(8) White 100%: With a rectangle of grey (approx. 70%)
upper-left-hand corner to identify the direction of deflection.
Checking of the limiter circuit of the beam current.
Balance of white.
(5)
(6)
(7)
(7) Multiburst: Horizontal line divided into nine blocks.
It starts with grey at 50% and continues with 8 MHz, 16
MHz, 4 MHz, 16 MHz, 4 MHz, 16 MHz, 8 MHz and grey
at 50%.
Checking of bandwidth.
(8)
(6) (chrosshatch):15 vertical white lines and 15 horizontal white lines which have a ratio of 4:3 in all the systems, within a white frame which
is not symmetrical but whose outside edge matches the borders of the system.
Centred adjustment of the picture and overscanning, static and dynamic convergence adjustment, interline check.
(5) Scale of greys: Seven shades of equal width, changing from black to white.
Video amplifier linearity (correct ratio between the values of the electronic beam currents), whiteness control and adjustment, contrast and brightness control.
SPECIFICATIONS
GV-241
TEST PICTURES
Available pattern charts
Signal
TTL
Connector
BNC
CS output
1
Colour bars 100/0/100/0
2
Red
Signal
Green
Connector
3
4
Blue
5
Scale of greys
6
Crosshatch
7
Multiburst
8
White
R, B outputs
C1, C2 and C3
Composite signal (horizontal and vertical)
with fixed polarity (negative)
TTL
BNC
Connectors D9, D15 miniature, and D15
respectively. Direct connection to the
monitor.
The outputs of the D9 connector are all
TTL. When the charts 1 or 5 are selected,
a black and white picture will appear.
When used with a Hercules monitor, the
R,G and B charts will be black.
Red and blue signals
Power supply
Amplitude
0.7 Vpp
Impedance
75 Ω
Mains voltage
AC 110-125-220-230-240 V ± 10%
Connector
BNC
Frequency
50-60 Hz
Consumption
9W
G output
Green signal with or without synchronism
Amplitude
0.7 Vpp
Operating environmental
Impedance
75 Ω
conditions
Connector
BNC
Altitude
Up to 2000 m
Video signal
Temperature range
From 5º C to 40º C
Amplitude
0.7 Vpp
Maximum relative humidity
Impedance
75 Ω
80 % (up to 31º C) dedecreasing lineally to
50 % at 40º C
Connector
BNC
CVS output
HS output
Horizontal synchronism pulse
Signal
TTL
Connector
BNC
VS output
Vertical synchronism pulse
Mechanical features
Dimensions
212 W.x 102 H x 241 D mm
Weight
2.4 kg
Included accessories
Mains cable: CA 05
GV-241
TABLE OF COMPATIBLE MONITORS
FIRST GROUP (P)
System
Pixels
Frequency
Horiz (kHz)
-1
(1)
HFP (4)
HS (2)
HBP (3)
VFP (8)
VS (6)
VBP (7)
Vert (Hz)
-1
(5)
(ms)
(ms)
(ms)
(ms)
(ms)
(ms)
Polarity
H
Interlace
V
VGA
640x480
31.469
59.94
0.636
3.813
1.907
0.318
0.064
1.048
-
-
NO
VESA
800x600
37.879
60.317
1
3.2
2.2
0.026
0.106
0.607
+
+
NO
VESA
1024x768
48.363
60.004
0.369
2.092
2.462
0.062
0.124
0.6
-
-
NO
ATT
1280X1024
63.953
59.938
0.727
1.018
2.255
0.016
0.078
0.579
-
-
NO
Sun
1600X1280
89.2
66.9
0.001
2.03
1.4
0.011
0.112
0.471
+
+
HFP (4)
HS (2)
HBP (3)
VFP (8)
VS (6)
VBP (7)
(ms)
(ms)
(ms)
(ms)
(ms)
(ms)
SECOND GROUP (S)
System
Pixels
Frequency
Horiz (kHz)
-1
(1)
Vert (Hz)
-1
(5)
Polarity
H
V
Interlace
CGA, EGA
640x200
15.81
61.5
6.6
4.2
7.2
1.58
0.19
2.15
+
+
NO
MDA, Hercu
720X350
18.42
49.91
0.6
8.25
1.45
0.001
0.9
0.2
+
-
NO
EGA Hi
640X350
21.86
59.72
0.001
4.9
1.6
0.001
0.6
0.08
+
+
NO
VGA
640X350
31.469
70.09
0.636
3.813
1.907
1.176
0.064
1.902
+
-
NO
VGA
640X400
31.469
70.09
0.636
3.813
1.907
0.318
0.064
1.112
-
+
NO
VGA Text
720X400
31.48
70.11
0.635
3.812
1.906
0.304
0.063
1.111
-
+
NO
+
VESA
720X400
37.736
90.044
0.75
1.25
4.5
0.239
0.08
0.981
-
MAC II
840X480
35
66.67
2.116
2.116
3.175
0.084
0.086
1.114
+
+
VESA
800X600
35.156
56.25
0.667
2
3.556
0.028
0.057
0.626
+/-
+/-
VESA
640X480
37.86
72.809
0.762
1.27
4.603
0.238
0.079
0.74
-
-
8514
1024X768
35.522
86.96
0.178
3.92
1.247
0.014
0.112
0.563
+
+
SVGA 72Kc
800X600
48.09
72.01
1.121
2.399
1.279
0.479
0.124
0.774
+
+
NO
YES
1025x768
1025X768
48.3
60
0.369
2.092
2.462
0.062
0.124
0.6
-
-
NO
SONY Std1
1024X768
48.78
60
1
1.5
2
0.061
0.061
0.799
+
+
NO
DEC
1024X864
54
60
0.16
1.85
1.68
0.001
0.056
0.629
+
+
XGA
1024X768
56.5
70
0.32
1.813
1.92
0.053
0.106
0.513
-
-
57K/72H
1024X768
57.09
72
0.32
1.77
1.87
0.054
0.103
0.5
+
+
+
Radius
1152X882
66
72
0.138
1.28
2.42
0.001
0.2
0.38
+
MAC II TP
1152X870
68.681
75.06
0.32
1.28
1.44
0.043
0.043
0.567
-
-
Samsung
1006X1048
62.8
59.8
0.15
1.88
1.58
0.001
0.127
0.542
+
+
SONY Std 2
1280X1024
63.337
59.98
0.407
1.701
1.849
0.047
0.047
0.41
+
+
DEC
1280X1024
70.7
66.5
0.267
1.33
1.87
0.042
0.042
0.467
+
+
Arts. Graf
1280X1024
78
73
0.228
0.915
1.907
0.038
0.038
0.488
+
+
NO
NO
NO
TOLERANCES
Horizontal frequency shift ±1 %
Vertical frequency shift
±1.5 %
Horizontal synchronisms
(4)
(8)
(2)(3)
PROMAX ELECTRONICA, S.A.
Francesc Moragas, 71 * Apartado 118 * 08907 L'HOSPITALET DE LLOBREGAT * SPAIN
Tel: 93 260 20 00 * Tel Intl: (+34) 93 260 20 02 * Fax: 93 338 11 26 * Fax intl: (+34) 93 338 11 26 * E-mail: sales@promax.es * http://www.promax.es
0 IP4046
(6)(7)
Horizontal front porch time
Horizontal synchronism
Horizontal back porch time
Vertical front porch time
Vertical synchronism
Vertical back porch time
Horizontal video signal
(5)
HFP (4)
HS (2)
HBP (3)
VFP (8)
VS (6)
VBP (7)
( 1)
Vertical
synchronisms
Vertical video
signal
* For other Monitor types contact with us.