IGT I Game Little Green Men - Monitor touch screen problem

[Mojomoe]

Thanks for the cleaning tip cowboygames!  I will follow your advice!   

Also Thank you TILT on another troubleshooting procedure tip as I continue to work on resolving the touch-screen issue. 

Moe

[Jim]

when the BV tries to cycle,do the red lights on the right side go dim?  I had the exact same problem, it was the gray ribbon cable shorting out to ground. don't know if it was the +12vdc being pulled down?  you might remove the BV transport as well and see what happens.  you could also monitor the +12vdc and +25vdc and see if they are ok.  

you know the board is good, the monitor from the TT works (just no TS) if you unplug and take the printer/BV out of the picture, then you are down to the motherboard, power supply, and the cabinet wiring.

Jim

[Mojomoe]

Finally success tonight.   First I removed the complete BV assembly, but same symptom.   I then installed the BV and removed the complete ticket printer assembly and was finally able to get the touch-screen to respond.   I now also understand how to remove the top 1/2 round glass and access the inside of the head. 

I set all of the options and got the game to finally play and enjoyed it.....   

The only thing I noticed that I had to touch the screen with extra pressure with my fingers, but it worked..           

Question:  Is there a touch-screen sensitivity adjustment either through the menu or something on the board that one could adjust? I tried to callibrate the touch-screen several times and also It's currently 50 degrees in the garage where the game is currently sitting, so maybe it's a temprature related issue... I will play it tomorrow when the room temp will be closer to 60 + degrees.

Major Thanks to everyone who guided me through this!!!!!       

Ever-grateful Moe

[Tilt]

Glad you were able to get it working!    Going through the calibration procedure is the only adjustment you can make to the touchscreen that I know of. 

[cowboygames]

Room temp has a huge effect on screen response. You should see a marked differance in temps over 60. The newer cellphone screens do a little better, but I would consider your experience at 50 pretty average

[Jim]

glad you got the machine up and working!  slide open the printer chassis and check out the gray ribbon cable that runs from the back to the sliding part, see if there is damage to that cable. If the cable doesn't fold like an accordion, its gets pinched by the rollers and usually tears or shorts out to the chassis.

Jim 

[kforeman]

glad you got the machine up and working!  slide open the printer chassis and check out the gray ribbon cable that runs from the back to the sliding part, see if there is damage to that cable. If the cable doesn't fold like an accordion, its gets pinched by the rollers and usually tears or shorts out to the chassis.

Jim 

if your ribbon is damaged (probably) you may have to replace the daughterboard for the printer as well as the ribbon cable.  the daughterboard is the pcb on the back of the printer chassis that the ribbon connects to.  i'm sure one of the helpful vendors here can hook you up with a new ribbon cable and daughterboard at a decent price so you can get the printer running again too!

[Mojomoe]

Thanks TILT & cowboygames for your very helpful input on Touch-screen temperature behavior, and what to expect.     

Jim, likewise I appreciate the tip on the printer cable getting caught issue,  I will inspect the cable for any closely tears or pinches which may be causing a short.   Question on the Printer cable connection itslef,  is there only 1 main connector or are there 2 (1 main and another smaller 4-pin white connector)?

    again,

Moe