New Life Games LLC
**Reel Slots** Gaming Machines => Bally Alpha Reel Games => Topic started by: keystone9 on November 04, 2014, 10:19:37 AM
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I am shopping out a Bally Alpha with a touch screen that is not responding. What is normally the first thing to look for? Thanks. Bill.
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Check the serial cable is plugged into the serial port of the MPU and then that it is also plugged into the monitor's touchscreen serial port.
Is the touchscreen not responding, or does the alpha give you an error. If there is no error on the screen and it is just not responding, then the actual touchscreen glass is bad. If the controller works and the glass is bad, you won't get an error on the game. If the controller is bad and everything is hooked up, then you will get a touchscreen error. Touchscreens usually work off the 12 volt rail. Check your 5/12v power supply for bulging caps.
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make sure you have a good ground
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Touchscreens usually work off the 12 volt rail. Check your 5/12v power supply for bulging caps.
I too have a 20 with a BEAUTIFUL PICTURE that I want to replace my S9E that has NO TOUCH with NO ERROR. The connection looks good,everything seems perfect. Where exactly is this? On the monitor itself? Or the 2 power supplies in the cabinet?
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If you are getting no error, there's a problem with either the glass (the capacitative grid is messed up), or the cable that connects the glass to the controller. You kind of have to take the monitor apart like I did when I cleaned mine and see what is going on. You will have to test the touchscreen glass with a good known working one, which means you are going to have to disassemble the bad monitor and a good monitor to test the glass.
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I took Rick's advice and disassembled the touch screen glass with braided fishing line, I had a used monitor laying around and did the same thing and swapped the glass on the monitors and everything is fine. I guess the not working glass had some broke traces. Thanks for all the help. It saves a lot of time Just asking questions on this site. Thanks. Bill.
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The traces on the edges of the screen are sometimes unprotected and they get removed or broken up easily. I put a layer of electrical tape all around mine when I sealed it so I don't expose it openly. Once one of those traces on the edge get messed up, your nice touchscreen glass is now just a glass. A new glass runs around $130. So sometimes it may be cheaper if you can find a used working monitor and your old monitor becomes spare parts. I have the opposite issue, I have a good working touchscreen, but a really crappy LCD full of gunk on the inner side of the LCD panel itself. When I disassembled the monitor I cleaned all surfaces, then I put back the thing together and it was better, but there was a lot of gunk on the LCD monitor when you see bright images, especially during boot where you see totally whited out screens, and then it is obviously apparent that it is dirty.