Chosen Solution
I have an iPod Classic 160GB A1238 model. If I connect it to external power source it turns on fine and works. But it does not do that when I connect it to any other power device like Mac or PC. What that means is that I am not able to add an new song to it OR I can not take a backup of the 10GB data that exists on it. Is there any USB splitter available which will allow me to connect it to external power as well as to PC USB port for data transfer?
I think you’ll need to check your setup as the iPod uses the same pins in the connector for power via USB. What cable are you using? This model needs a USB connection to work properly, are you using the older FireWire cable?
You may need to use a Y-Cable and a FireWire Power Adapter. This way, you can charge your iPod using FireWire and connect it to your computer via USB at the same time. It is difficult to find an official Apple Y-Cable, which is why I linked an off-brand version.