Roger Ford Posted May 12, 2012 Share Posted May 12, 2012 Charger on my TomTom doesn't work, and investigation shows one of the three wires is broken. Guess I can just solder on a new mini-USB plug, but why are there three leads? They are coloured red, black and white. And bonus question - anyone know which connectors on the mini-USB plug they should connect to? I know I can get an aftermarket charger from ebay for about £1.50, but they generally don't supply anything like the 2A that the TomTom needs to charge and run at the same time. A genuine one is about £13, which would buy a lot of solder. Link to comment Share on other sites More sharing options...
michaeljclark Posted May 12, 2012 Share Posted May 12, 2012 Well here would suggest (to my mind) that the 3rd cable is the "ID" cable and not used - until I looked at Wikipedia I had no idea it was possible for there to be 5 wires in a USB plug. Hopefully the images on the page will help with the pinouts you need Mike Edited by - michaeljclark on 12 May 2012 19:43:49 Link to comment Share on other sites More sharing options...
Eugene Posted May 12, 2012 Share Posted May 12, 2012 Hi Roger, This should help HERE. 😬 Link to comment Share on other sites More sharing options...
LazerBrain Posted May 12, 2012 Share Posted May 12, 2012 You could consider buying one of those £1.50 leads and robbing it of the cable with moulded connector, then using it with the existing charger. Link to comment Share on other sites More sharing options...
Roger Ford Posted May 12, 2012 Author Share Posted May 12, 2012 Eugene - thanks for that, very useful. My Googling had failed to find that. LazerBrain -I did consider that, but (a) I've got lots of mini-USB cables lying around, and (b) I suspect the cheap ones don't include the sense wire anyway - they probably just provide a fixed 5V. OTOH, I could just solder the white+red together onto the positive of the cheap one and I guess that should do the job. Of course all I actually need to do is find out the pinout of a standard USB connector - since it must be using the same 5V pins (or it wouldn't work connected to a computer). Link to comment Share on other sites More sharing options...
michaeljclark Posted May 12, 2012 Share Posted May 12, 2012 Quoting Roger Ford: Of course all I actually need to do is find out the pinout of a standard USB connector - since it must be using the same 5V pins (or it wouldn't work connected to a computer). Is that not detailed in the Wiki page I linked to under the "Physical appearance" section? Mike Link to comment Share on other sites More sharing options...
Roger Ford Posted May 12, 2012 Author Share Posted May 12, 2012 Yes, I wasn't implying it was hard. Well, I found an old USB - Mini USB cable, cut the wire, connected red on the plug cable to red and white on the charger, and connected black to black. Soldered it all up neatly and covered it in multiple layers of shrink wrap (and replaced the fuse in the charger for good luck). It still didn't work. So I threw it in the bin and will buy a new one one after all. Link to comment Share on other sites More sharing options...
adwyer Posted May 13, 2012 Share Posted May 13, 2012 Roger, I'm just about to list 2 genuine TomTom car charger's on eBay, one is boxed and unused. Yours for £7.50 incl p&p in the uK if you're interested? Adrian. Link to comment Share on other sites More sharing options...
Roger Ford Posted May 13, 2012 Author Share Posted May 13, 2012 Drat, too late unfortunately. Bought one off ebay for £12 last night. Thanks anyway! Link to comment Share on other sites More sharing options...
Z3MCJez Posted May 13, 2012 Share Posted May 13, 2012 Quoting Roger Ford: Yes, I wasn't implying it was hard. Well, I found an old USB - Mini USB cable, cut the wire, connected red on the plug cable to red and white on the charger, and connected black to black. Soldered it all up neatly and covered it in multiple layers of shrink wrap (and replaced the fuse in the charger for good luck). It still didn't work. So I threw it in the bin and will buy a new one one after all. This is my approach to electrics, generally, too. Things that should be easy never turn out to be ... Jez Edited by - Z3MCJez on 13 May 2012 23:24:32 Link to comment Share on other sites More sharing options...
Area Representative Nick Chan Posted May 14, 2012 Area Representative Share Posted May 14, 2012 Adrian, if the new lead is still available can I have it? Nick Link to comment Share on other sites More sharing options...
adwyer Posted May 14, 2012 Share Posted May 14, 2012 Hi Nick, Yes, the lead is still available so it's yours. BM me your address and i'll drop it in the post tomorrow. Regards, Adrian. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now