Touchmaster
®
Conversion Kit
System - 19
VIDEO TEST
Video tests provide patterns which verify monitor performance or making adjustments. You can modify
some monitor characteristics using the monitor controls remote board.
ALIGNMENT GRID
Lets you check or adjust monitor convergence, linearity, and dynamic focus.
GRADIENT TEST
Permits you to optimize CRT screen image for brightness and contrast.
COLOR BARS
Lets you analyze red, green, blue, and white balance.
RED SCREEN
Solid red screen for purity tests. Red should be the only color showing.
GREEN SCREEN
Solid green screen for purity tests. Green should be the only color showing.
BLUE SCREEN
Solid blue screen for purity tests. Blue should be the only color showing.
TYPICAL VIDEO TEST MENU SCREEN
It is vital that the information on the video display for the Touchmaster
®
is accurate, since the CRT screen
is also the control panel for this game. Use these test patterns often to ensure precise game images.
Game players tend to be more critical when they are close to the monitor, and the Touchscreen Controller
requires intimate screen contact. This is especially true of small screen versions, since some of the
sensor areas are the same size as the contact area of the player’s fingers.
The ALIGNMENT GRID fills the screen with a series of lines and dots. The lines and dots should be all
one color, with no fringes or parallel images. The lines must be straight and the dots very nearly round.
Two color bars should be visible at the center of each screen edge. These bars verify scan size.
The GRADIENT TEST covers the screen with shades of colors to verify red, green, blue, and white level
dynamic adjustments. Each color bar should appear sharp, clear, and distinct from the others. This test
indicates a need for adjustment if some of the bars appear to be missing or blend together at the edges.
The COLOR BARS screen displays each of the standard colors and shades produced by the game’s
video circuits. The vertical bars must be uniform from top to bottom. The horizontal bars should show
small changes in intensity or shade from side to side. A sudden transition in any bar indicates a fault.
RED, GREEN, and BLUE SCREENS fill the screen entirely with the chosen color at normal intensity. Each
screen should be absolutely uniform from top to bottom and side to side. No retrace lines or noise should
be visible. These tests verify that the black level, degaussing, and blanking circuits are correct.
GRADIENT
TEST
RED
SCREEN
ALIGNMENT
GRID
COLOR
BARS
GREEN
SCREEN
BLUE
SCREEN
RETURN
