MP3Car.com - View Single Post - Lilliput 629GL Problem: Touchscreen unresponsive

h3rk · 04-10-2008, 12:07 AM

Project240,

Have gotten anywhere?

I'm having very similar problems, the only differences are that I dont get a "USB device Unknown" error, I don't get any errors, I installed various version of the xp/vista touchkit utility/drivers and they all seem to install ok, but once installed, and despite much of my efforts I could not get the touchsreen to respond, even during calibration.

My Lilliput has the same 14 pin centronics cable, and I also noticed that USB Vcc was not present on the 14 pin connector. In fact, since there were 3 wires between the 9 pin and the 14pin, I figured they were 3 conductor shielded wires and I couldn't accept why I wasn't getting continuity for that lead. So I opened everything up and found that the 9th wire (pin 3 on the 9-pin to the centronics connector). But I found that there was a red-insulated conductor in one of the wires that was in fact clearly left disconnected on both ends, and all connections on the 14-pin were in tact. Only 9 pins are used on the male 9-pin connector. I whipped up a Pinout, since I didn't see one in here.

Unfortunately my monitor is a Transflective modified FA841-NP/C/T with a upgrade to a Fujitsu USB panel and controller (anti glare) [Motorcity], so I don't know how much similarity there is really. And I'm going to have to start my own thread about some of the other problems I'm having.

BTW, do you know what the black plug is for?
I found it odd that it was connected to 2 pins like ground, leading me to think it's power supply-ish, which got me into thinking about USB Vcc... I didn't get a manual, so I wasn't sure. And there is another power plug on the board on my screen, next to the 14 pin female.

04-10-2008, 12:07 AM	#6
h3rk FLAC Join Date: Oct 2006 Location: Las Vegas Posts: 1,287	Project240, Have gotten anywhere? I'm having very similar problems, the only differences are that I dont get a "USB device Unknown" error, I don't get any errors, I installed various version of the xp/vista touchkit utility/drivers and they all seem to install ok, but once installed, and despite much of my efforts I could not get the touchsreen to respond, even during calibration. My Lilliput has the same 14 pin centronics cable, and I also noticed that USB Vcc was not present on the 14 pin connector. In fact, since there were 3 wires between the 9 pin and the 14pin, I figured they were 3 conductor shielded wires and I couldn't accept why I wasn't getting continuity for that lead. So I opened everything up and found that the 9th wire (pin 3 on the 9-pin to the centronics connector). But I found that there was a red-insulated conductor in one of the wires that was in fact clearly left disconnected on both ends, and all connections on the 14-pin were in tact. Only 9 pins are used on the male 9-pin connector. I whipped up a Pinout, since I didn't see one in here. Unfortunately my monitor is a Transflective modified FA841-NP/C/T with a upgrade to a Fujitsu USB panel and controller (anti glare) [Motorcity], so I don't know how much similarity there is really. And I'm going to have to start my own thread about some of the other problems I'm having. BTW, do you know what the black plug is for? I found it odd that it was connected to 2 pins like ground, leading me to think it's power supply-ish, which got me into thinking about USB Vcc... I didn't get a manual, so I wasn't sure. And there is another power plug on the board on my screen, next to the 14 pin female. Last edited by h3rk; 04-11-2008 at 04:20 AM.