far Posted January 20, 2008 Share Posted January 20, 2008 the pic below is the internals of a usb port in a laptop - colour coded, question is, instead of opening the laptop up if I solder into the four metal strips in the usb port from the outside do I still follow the colour code or is it somehow reversed? http://www.bit-tech.net/content_images/2007/12/add_more_storage_space_to_your_asus_eee_pc/wiring1.jpg Link to comment Share on other sites More sharing options...
DamanC Posted January 21, 2008 Share Posted January 21, 2008 I cant see why it would be reversed? Link to comment Share on other sites More sharing options...
JustGav Posted January 21, 2008 Share Posted January 21, 2008 It will more than likely be flat, since crossing over connections across a PCB is an absolute nightmare. Be very careful soldering onto the port directly, a motherboard is usually multilayer and don't take heat cycles too kindly. Any particular reason you are soldering directly to the board? Link to comment Share on other sites More sharing options...
far Posted January 21, 2008 Author Share Posted January 21, 2008 Any particular reason you are soldering directly to the board? I'm integrating a 3G (usb) modem inside the expansion slot of a laptop so the modem doesnt flap about outside. I would prefer to solder to the connectors on the USB from the outside and avoid the motherboard, as long as I am sure the colour coding doesnt change its ok. Cheers Far Link to comment Share on other sites More sharing options...
JustGav Posted January 21, 2008 Share Posted January 21, 2008 I'm integrating a 3G (usb) modem inside the expansion slot of a laptop so the modem doesnt flap about outside. I would prefer to solder to the connectors on the USB from the outside and avoid the motherboard, as long as I am sure the colour coding doesnt change its ok. Cheers Far You may have issues putting inside the laptop case, a lot of them have metal shielding which provides a sort of farady cage. You might find with the model inside the laptop you don't get great signal. Why not bond the modem to the back of the screen, and then run some thin wires inside rather? Link to comment Share on other sites More sharing options...
far Posted January 21, 2008 Author Share Posted January 21, 2008 You may have issues putting inside the laptop case, a lot of them have metal shielding which provides a sort of farady cage. You might find with the model inside the laptop you don't get great signal. Why not bond the modem to the back of the screen, and then run some thin wires inside rather? I've opened up the laptop and it will fit, the modem is a huweai(sp?) and has an external aerial jack. I dont really want a blob stuck to the side of the laptop! lol:D Link to comment Share on other sites More sharing options...
DamanC Posted January 21, 2008 Share Posted January 21, 2008 You may have issues putting inside the laptop case, a lot of them have metal shielding which provides a sort of farady cage. You might find with the model inside the laptop you don't get great signal. Yeah that! Link to comment Share on other sites More sharing options...
far Posted January 21, 2008 Author Share Posted January 21, 2008 Yeah that! Dammit! Well there doesnt seem to be a cage in here but the plastic back cover I removed seems to have a layer of silver sheeting - should I remove this when I put the modem in? Link to comment Share on other sites More sharing options...
JustGav Posted January 21, 2008 Share Posted January 21, 2008 Dammit! Well there doesnt seem to be a cage in here but the plastic back cover I removed seems to have a layer of silver sheeting - should I remove this when I put the modem in? If you are happy to use the external aerial jack then you should be okay, but just saying watch for shielding. Link to comment Share on other sites More sharing options...
far Posted January 22, 2008 Author Share Posted January 22, 2008 Will there be any issues in cutting open the USB cable and soldering the wires to the connectors on the USB port which faces the outside? Cheers Farhan Link to comment Share on other sites More sharing options...
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