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Thread: TF101 Wiring Diagram for the AC charger

  1. #1
    Soundwave
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    TF101 Wiring Diagram for the AC charger

    Hello folks,

    I apologize if this topic is already been answered but I couldn't find it when I was looking but here's my problem...

    I have an ASUS TF101 and I need to charge the thing. I have two cables that charged the thing in the past but I wanted to combine the two cables to make one really long power cable because the wall outlet in my bedroom is miles away from my bed.

    Anyway, when I cut one of the cables open, I notice that there's 5 smaller wires that are these colors (GREEN, ORANGE, RED, WHITE AND YELLOW). Now the other wire, which I thought would have the same wires really only had two. Those wires were (WHITE AND YELLOW). The power cord that only has two wires was not purchased from ASUS but the other one was.

    Can anyone tell me what does the WHITE AND YELLOW wires connect on the other cable or point me in the right direction as to obtain a cable schematic of this particular power cord?? Like a dumb-a** I didn't think to think of this beforehand and now I need major help.

    Thanks in advance for any help you can give me.

    Sincerely,

    Leonard Peacock



  2. #2
    Starscream
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    You can just use USB 3.0 extension cable and plug one end to TF cable and one end into charger unless I'm missing something.
    *Rooted* Transformer Pad TF101 and Nexus 7

  3. #3
    Jazz
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    Quote Originally Posted by NyanCat View Post
    You can just use USB 3.0 extension cable and plug one end to TF cable and one end into charger unless I'm missing something.
    No this does not work, I don't exactly know why - I think something in the TF101 checks the impedance between two of the wires that are shorted in the factory cable - or something like that. I solved it the the other way around: I got a mains extension cable and plugged the charger to that. I hope that you didn't cut both cables, TX.
    scottporter likes this.

  4. #4
    Starscream
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    I thought I heard people saying USB 3 cables worked but 2 did not. :\

    Sent from my Transformer TF101 using Tapatalk 2
    *Rooted* Transformer Pad TF101 and Nexus 7

  5. #5
    *Rescue Squad*
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    USB 3 cables do work but I would not be surprised that you got one that did not. I have been using one for a year. Maybe mismarked, did you look at the cable and verify that is truly a USB 3.
    FYI mine is 6 feet plus the TF cable so I don't think length/impedance is the issue.
    Help shortcuts

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    For T100 http://www.transformerforums.com/for...s-guides-tips/


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  6. #6
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    I know that USB 3.0 cables will work, but they do increase the circuit impedance and when charging with a 6' USB 3.0 cable it causes my wall wart to stop working when charging the tablet and dock at the same time if they are both less than 50%.

    I know that using the Asus wall wart you will need all 5 cables hooked up. Not sure exactly which pins they go to, but I would use an Ohm-meter to check which of the 9 pins on the USB connector each goes to.

    On the non-Asus charger, they should go to PIN 1 and PIN 4. Pin 1 will need to be the +15 VDC, Pin 4 will be the GROUND connection.


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  7. #7
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    An AC extension cord would have been much easier.

  8. #8
    Jazz
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    Quote Originally Posted by leeshor View Post
    An AC extension cord would have been much easier.
    Which is what I suggested - probably be much cheaper and readily available too.
    helpifIcan likes this.

  9. #9
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    Quote Originally Posted by garcij1964 View Post
    Which is what I suggested - probably be much cheaper and readily available too.
    I agree BUT with the extension cable I can plug any USB charging device in to the extension cable = less clutter.

    Help shortcuts

    For TF101 http://www.transformerforums.com/for...tml#post177499
    For T100 http://www.transformerforums.com/for...s-guides-tips/


    My stuff!

    ASUS T100 64GB
    Tab 32 GB + Dock was mine now my wife's
    LG Optimus V
    ASUS MB Z97-A with I5 CPU (mine home brew PC)
    HP Desktop (wife's)
    Retired: My week is six Saturdays and one Sunday!

  10. #10
    Starscream
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    Quote Originally Posted by helpifIcan View Post
    I agree BUT with the extension cable I can plug any USB charging device in to the extension cable = less clutter.

    Totally with you on this. Currently I have 3 to 5 chargers sitting on my bed during the day and then at night I have to plug them in.

    Sent from my Nexus 7 using Tapatalk 2
    *Rooted* Transformer Pad TF101 and Nexus 7

 

 
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