MP3Car.com - View Single Post - tm-868 problem..help

vibhubithar · 06-30-2007, 03:30 AM

I am reading this forum for a long time, and then I gave a go to my car PC idea. Well I have everything now in place just to test drive it in the car, hope every thing goes well :).

Well I bought the TM-686 from a guy in $140 and I think he sold it bcos its touch screen is giving a problem. Well I read the topic only after I started getting problems in it.

In one of the thread i heard that you have to change the USB controller but anyhow I won’t to avoid that as it means more time, patience and money. Hence I decided to find the root cause.

So the problem lies in the USB cable .... Really ..... It seems like that in the beginning but to be sure I cut the composite VGA cable's USB and rewired the USB connections inside the monitor it solved the problem by say 45% so there is something else that’s wrong with this screen ....

I looked closely at the screen design and there lies the problem. It’s the placement of the USB controller and the internal composite VGA cable that runs directly over the controller hence when closed pushes the controller’s connectors making them to detach from the board and hence controller can’t be found.

Solution ... as the damage by the thick composite VGA cable due to prolonged pressure on the sensitive card is huge hence ...

1. I provided some cushion below the connector.
2. Cut some holes at the back of the screen and pushed the composite cable
Away from the card.
and it works .. hope it works fro you all tooo....

Thanks for all your help .....

06-30-2007, 03:30 AM	#6
vibhubithar Newbie Join Date: Jun 2007 Posts: 1	Hi All I am reading this forum for a long time, and then I gave a go to my car PC idea. Well I have everything now in place just to test drive it in the car, hope every thing goes well :). Well I bought the TM-686 from a guy in $140 and I think he sold it bcos its touch screen is giving a problem. Well I read the topic only after I started getting problems in it. In one of the thread i heard that you have to change the USB controller but anyhow I won’t to avoid that as it means more time, patience and money. Hence I decided to find the root cause. So the problem lies in the USB cable .... Really ..... It seems like that in the beginning but to be sure I cut the composite VGA cable's USB and rewired the USB connections inside the monitor it solved the problem by say 45% so there is something else that’s wrong with this screen .... I looked closely at the screen design and there lies the problem. It’s the placement of the USB controller and the internal composite VGA cable that runs directly over the controller hence when closed pushes the controller’s connectors making them to detach from the board and hence controller can’t be found. Solution ... as the damage by the thick composite VGA cable due to prolonged pressure on the sensitive card is huge hence ... 1. I provided some cushion below the connector. 2. Cut some holes at the back of the screen and pushed the composite cable Away from the card. and it works .. hope it works fro you all tooo.... Thanks for all your help .....