Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Ipod shuffle 4G USB cable pinouts

Status
Not open for further replies.

klystron

Advanced Member level 4
Joined
Jul 11, 2002
Messages
1,011
Helped
193
Reputation
386
Reaction score
179
Trophy points
1,353
Location
South Africa
Activity points
4,518
I am looking for the ipod shuffle 4G USB to 4 way 3.5 mm jack plug circuit
 

Thank you Keith
I have tried those pinouts. It does not work. It appears that the 4G device uses different pinouts. The +5V is also connected to the Al body of the device . That will short the USB 5V if the plugged in 4G device makes contact with the PC enclosure?
Regards
 

I found this info on the web :
I have disassembled a Shuffle 4G cable. Under its Type-A USB
connector's cover is a small pcb carrying three chips and a
few passive components. One of them is a leggy chip that
could well be a microcontroller.

So this cable is active for sure and this would explain the
high-impedance state of the powered-down cable. It would be
helpful if another user could pry-open the cover of their
3G/4G cable, I believe these are the same, and check this
embedded chip existence.

Worryingly, such a design creates a horrible opportunity to
create malicious USB exploit cables and passed-off as
innocuous Apple originals. I note that there are plenty of
Shuffle 4G USB cables on eBay. I say worryingly because my
cable ''is'' a replacement from eBay - I'd lost the original
cable.

Another curious and perhaps revealing situation I found. I
tried connecting an Archos cable which is wired pin-to-pin
in the same manner as the 1G/2G shuffles - It worked; yet
only once. This one-off behaviour was repeated on a second
machine, where it worked, but just the once. thereafter the
Shuffle was completely invisible to the computers using this
cable.
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top