help lilliput usb not working!!!

**pardoe16V** · 10-04-2005, 03:43 PM

newbie here, hope you can all help, ive got a lilliput 7" monitor with usb touch, got the monitor working on my laptop but when i install the driver for the touch screen, both the one on the disk and new one from lilliputs web site its not coming up, and the computer is not recognising the usb as a touch screen divice, it just says unknown device, anyone had this trouble? i brought the screen from my mate who had it working but hes had it back and its still not working? how fragile is the ribbon cable between the usb board and the touch pad on the screen? ive had it off and i may have damaged it if its a bit fragile?

**Sonicxtacy02** · 10-04-2005, 03:57 PM

Its probably not the ribbon cable. its either the touch panel or the touchscreen controller. One of both needs replaced. I'm in teh same boat as you.

**pardoe16V** · 10-04-2005, 04:08 PM

where can you get one of these from?
on the lilliput touch screen controler, does it run independantly of the 5V from the usb? is it connected in any way to the VGA board and 12V power supply?

**mike-e-mon** · 10-04-2005, 08:15 PM

The TS overlay has nothing to do with windows detecting HW to install the drivers. My guess is that it is the USB controler, but just check the cables to be sure.

Mike

**Sonicxtacy02** · 10-05-2005, 08:18 AM

order replacements from armen (digitalww.com). Dont ***** about the wait either lol.

**Sonicxtacy02** · 10-05-2005, 08:19 AM

oh yea and the controller is connected to the vga board with a 3 (i think) cable connector. Its bolted to the board as well.

**pardoe16V** · 10-05-2005, 01:12 PM

anyone know what these three cables do? see when i brought the screen i just quickly tested it, and the egg PS had the plug cut off and two terminals on the end instead, i thought i had the right wires in the right hand but i didnt!!! lol lot of smoke, two new caps and a sample order for the regulator i got it working and the screen is ok, just wondering if this is what has knackered the usb? it hasnt touched the screen thou
cheers for the help lads

**mike-e-mon** · 10-05-2005, 02:02 PM

A USB cable has four wires, 5V, ground, data- and data+. I've looked at some pictures on the DigitalWW site and there are four wire going in.
http://digitalww.com/Lilliput_to_Ind...iput_open2.jpg
The USB controler should be powered by the USB buss. I would have through that the USB controler would not be affected by reversed power on the DC input, but I could be wrong? You could check the diode on the USB controler, with a DMM, to see if it's gone.

Mike

**Sonicxtacy02** · 10-05-2005, 03:11 PM

anyway of tellin us which wire is which?

**pardoe16V** · 10-05-2005, 03:45 PM

thanks for that pic im guessing that on your photo red is 5v black grn and the white and orange is the datas? is there a compariotor on the usb front so that data + and data - has no preferance to which way its is wired?