Hi,
Need some opinions.
I have an Asus Transformer TF101 tablet that won't charge anymore. A little background info: this tablet uses a USB connection, and the original AC adapter put out 15 volts (not the usual USB 5 volts). For the tablet to indicate "charging" it needs to receive at least 11 volts (it can apparently trickle charge while asleep at a lower voltage, but I've never experienced this). My original charger broke (like many do for this device), so I purchased a 12v adapter from Radioshack with a female USB tip. Due to a little "accident" something else broke. Using my multimeter, I know the adapter and USB tip still put out the correct voltage, so its either the proprietary USB-to-30pin cable connector for the tablet, or something in the tablet itself. I can't figure out how to definitively test if the cable is broke or not. It is hard to get a multimeter lead into the 30pin connector, although continuity tests on the outside ground still show a connection, etc... I've also disassembled the tablet a small amount and was able to voltage test the pins on the PCB right next to the connection. With the battery disconnected and the cable plugged in, I get nothing. With the battery connected and the cable not plugged in, I get 3 to 4 volts from a couple of those pins and nothing from others. Not sure what this means, but seems to me like the problem in the cable...possibly...maybe.
Anyways, I've ordered a cable and it is in the mail, but in the meantime I really need/want some extra charge in my tablet. Normally I would just say 'what the hell' and try this, but since its a $300 tablet I guess I'll get a second opinion first. I have a second 12v source with just two stripped wires, what if I stuck the positive wire into the female connection on the tablet, and the ground onto a screw somewhere, do you think that would charge the battery? This is where my electronics knowledge falls short. I don't know how this 30pin connector works, does it somehow split up the voltage or something so that if I just sent 12v directly into everything it would fry it?
I think thats it...
Thanks for any suggestions.
Keep on kludgin'
Marc
Need some opinions.
I have an Asus Transformer TF101 tablet that won't charge anymore. A little background info: this tablet uses a USB connection, and the original AC adapter put out 15 volts (not the usual USB 5 volts). For the tablet to indicate "charging" it needs to receive at least 11 volts (it can apparently trickle charge while asleep at a lower voltage, but I've never experienced this). My original charger broke (like many do for this device), so I purchased a 12v adapter from Radioshack with a female USB tip. Due to a little "accident" something else broke. Using my multimeter, I know the adapter and USB tip still put out the correct voltage, so its either the proprietary USB-to-30pin cable connector for the tablet, or something in the tablet itself. I can't figure out how to definitively test if the cable is broke or not. It is hard to get a multimeter lead into the 30pin connector, although continuity tests on the outside ground still show a connection, etc... I've also disassembled the tablet a small amount and was able to voltage test the pins on the PCB right next to the connection. With the battery disconnected and the cable plugged in, I get nothing. With the battery connected and the cable not plugged in, I get 3 to 4 volts from a couple of those pins and nothing from others. Not sure what this means, but seems to me like the problem in the cable...possibly...maybe.
Anyways, I've ordered a cable and it is in the mail, but in the meantime I really need/want some extra charge in my tablet. Normally I would just say 'what the hell' and try this, but since its a $300 tablet I guess I'll get a second opinion first. I have a second 12v source with just two stripped wires, what if I stuck the positive wire into the female connection on the tablet, and the ground onto a screw somewhere, do you think that would charge the battery? This is where my electronics knowledge falls short. I don't know how this 30pin connector works, does it somehow split up the voltage or something so that if I just sent 12v directly into everything it would fry it?
I think thats it...
Thanks for any suggestions.
Keep on kludgin'
Marc
