Game King Touch Screen not working

[Tilt]

game king 17" 3902 board, was working ok last time i turned it on (a few weeks ago) now powered up, the touch screen not working,(monitor works ok but nothing works upon touch)  (touchscreen communication error displayed on screen), keying cpu with chip#22 cleared but didn't help, turned the jp key, calibrating never shows dots to touch. figured it was a t/screen controllerr so i swapped whole working monitor (from a good game king next to it)  still giving same error,  next tried swapping working board, and power supply.  good grounded outlet.  -the components i pulled off this machine work fine in another one.

so monitor ok, cpu board ok, and power supply ok,  but touchscreen still not working, what else? only thing left in machine is motherboard, and cable from monitor to motherboard -or did i overlook something simple?

azgamingslots

[Tilt]

« Reply #1 on: July 31, 2013, 07:49:05 AM »

It's to early today for a long story so will keep it short.

I had two machines with this problem ( at the same time )  and it was the same trace burned on the mother boards  both machines.  Soldered a jumper wire in and as for as I know they are still working.

Buzz

« Reply #2 on: July 31, 2013, 11:22:37 AM »

Try unplugging the printer and see if the touchscreen error goes away. If that doesn't work try the I/O cards.

Tech73

« Reply #3 on: August 02, 2013, 11:37:57 PM »

  talked to a tech in las vegas, i followed his suggestions,  also swapped motherboard and video cable,  still nothing.

after running out of things to try, he said to disconnected the bill validator.  (pulled it out) -touch screen error disappeared. slid the validator back in, it cycled and restarted. all is well -wtf?

seems that if the validator doesn't communicate properly with the netplex,  the netplex shuts down communication with everything

all is working now.

azgamingslots