Help! Touchscreen not working

**Stealth915** · 06-25-2008, 02:08 PM

I'm having trouble getting the touchscreen on my 2008 model Lilliput 629. I purchased it from bybyte, prebuilt into a Mazda3 dash kit. The monitor works fine, and the touchkit software and drivers install perfectly. The only thing is when I touch the screen, nothing happens. I've tried running the calibration and the screen doesn't detect the stylus or my finger. Anybody have any idea as to what is the problem? I've tried uninstalling/reinstalling the drivers, and also have tried multiple USB ports. Still no luck. Please help!

I don't know anything about taking apart the touchscreen, but looking at the back of the unit, I noticed that the CN20 connector doesn't have anything plugged in to it. Could this be the reason my touchscreen isn't responding?

**2k1Toaster** · 06-25-2008, 02:17 PM

Check from the LCD to the controller board. There should be a clear 4 conductor ribbon from it to the board.

It could be backwards, loose, or missing. I would check that.

**GhostRiderDad** · 06-26-2008, 06:45 AM

I have a 889GL and the touch screen suddenly stopped working. It had only been in the car 3 days. It is possible that the connection for the USB stopped working because of a faulty or worked loose ribbon cable...and where do I look? Thanks

**st1mpy** · 06-26-2008, 07:57 AM

Is the controller detected in Windows?

**dLockers** · 06-26-2008, 08:27 AM

I have EXACTLY the same problem as you, same drivers, same firmware issue but using the innovatek 8inch TM868 iirc.

Detected in windows, no errors, installed via device manager then application/utility installed - still no go, tried it upside down & back to front to eliminate all possible angles and im still getting no feedback from the touchscreen.

PLEASE HELP!

**GhostRiderDad** · 06-26-2008, 09:58 AM

In my case, the USB is no longer being deteced. I've tried it in other USB ports and still nothing. did something fry on me?

**Machinehead** · 06-26-2008, 12:17 PM

Originally Posted by Stealth915

That connector is for the speaker, it doesn't have anything to do with the touch screen.

**Stealth915** · 06-26-2008, 01:24 PM

Thanks for the info. I tried to find a ribbon cable on the unit, but I couldn't really see much without taking the unit apart. I decided to just send it back to ByByte to get it fixed.

**GhostRiderDad** · 06-26-2008, 05:20 PM

Does anyone kno why the USB would stop being recognized, and hence the touch screen not work? I had it in my car 3 days and it stopped cold. Thank goodness I have a mouse to use as a back up! HELP!!!!!

**angel120** · 07-07-2008, 12:58 PM

Originally Posted by GhostRiderDad

Does anyone kno why the USB would stop being recognized, and hence the touch screen not work? I had it in my car 3 days and it stopped cold. Thank goodness I have a mouse to use as a back up! HELP!!!!!

I'm having the same issue. My EBY701's touch isn't in Device Manager, but the video works perfectly fine. It used to work when I first got it, but no dice. I think the touch controller is screwed up.