Hi guys, Maybe you can help me have an older 19" touchscreen crt
how can I calibrate and test the touchscreen when I can't make a selection on it because it doesn't work?
Is there another way to toggle through and select an option ?
The screen works only for a "spin" anywhere along the bottom , any ideas?
Thanks
first off need more info ??WHAT KIND OF MACHINE IS IT IN ??ARCADE /SLOT/ HOME MADE ??
is it a 3m microtouch or a ELO touch screen ??
if its the more common 3m with a little ivory color bar of soap size control attached to wires coming off the screen mounted to side of chassis of crt housing in most cases ?
check connections to it .
check the Green wire coming of touch screen for good ground.
is the monitor in a steel case slot or arcade wood machine ??
if wood try to touch the metal frame of the CRT housing when trying to calibrate -
same goes for the steel cabinet .
if its sitting on a carpet floor or non conductive area you will have "ground" trouble very common .
when machine is on >>>>look at the ivory color controller<<< if its a 3m controller t/s.
you will see a green light on the controller . if you touch the screen in center the light should dim possibly go out for a moment . thats a good sign ..
as far as a way to enter into the test screen to get the two or four X's to touch or circles in some cases or dots in some cases in the four corners>>>> a REPEATED TOUCH of the screen<<< >>SOMETIMES << will trigger a touch screen setting .
other machines have a specific menu to go to to set the touch points <<>>>> a turn of a re-set key will bring up a menu .
I really need more info to bring you in deeper .. but most troubles are poor grounds of the screen itself and poor ground of the person trying to set the touch points-----trying to touch it ?
if in a casino type slot game etc .many games have the option of using the buttons to play if the touch screen screen goes out . others only allow certain movements to be used if the touch screen is dead .
check the grounds -hold the metal of CRT if possible when testing or setting touch screen.
one other thing to try to bring up the touch screen points is a single button on a arcade machine touch screen
or countertop game as in JVL-MERIT-MIDWAY-WILLIAMS ETC . that you press that brings up the menu for the touch screen setting . other than a >>repeated touch of the center of crt <<<<< as i mentioned above that sometimes will trigger a internal setting that brings up the touch screen settings .
hope this helps but need more info of what its in and picture would help and brand of touch screen .
last check if the double sided tape holding the touch screen on ?? if thats the mounting the co. used to hold on the touch screen has not just lost its grip??? the entire screen may not be in contact with the CRT all the way around .
if its a older model touch screen and uses the >>real glass<<< not plastic touch screen if its 10-15 years old heat from machine and time will let the adhesive dry up and the connection is gone. you can actually pull off the touch screen in a corner with a small amount of effort . if thats the case it would need to be pulled -cleaned and remounted .
hope this helps .