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DIY doc for iPod-touch pin outs 3g Vs 4g-- problem

post #1 of 24
12/19/10 at 8:55am
Thread Starter 

I made a iPod doc for my home system and I just bought a new iPod touch and I get no sound, does anybody know the new pin outs or what has changed? any inpout would be helpful

 

 

 

http://gallery.me.com/woodgear#100008


Edited by todd@tk7.net - 12/19/10 at 9:38am
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post #2 of 24
12/19/10 at 6:04pm

Pin 1 and Pin 4 on the pic are mixed. Also, try jumper Pin 11 to either Pin 15 or 16.

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post #3 of 24
12/20/10 at 12:20pm
Thread Starter 

thanks, my picture is alittle wrong, but I will try the 11 to 15 or 16 thanks

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post #4 of 24
12/23/10 at 2:19pm
Thread Starter 

here is what I have

 

L signal to pin 4

L grnd to 11

 

R signal to 3

L grnd to 1

 

1 is jumpered to 2

 

2 is jumpered to 11

 

11 is jumpered to 15

 

15 is jumpered to 21 with resistor

 

this works great for my iPod Touch 3G, but not with the 4G version, the sound comes out the iPod


Edited by todd@tk7.net - 12/23/10 at 2:21pm
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post #5 of 24
12/25/10 at 8:35am
Thread Starter 

I connected 11 to 16 and will only work with the older 3g version not my new iTouch 4g version

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post #6 of 24
12/28/10 at 9:29pm
Thread Starter 

anybody have any ideas?

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post #7 of 24
12/28/10 at 11:19pm

What's the value of the resistor you used?

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post #8 of 24
12/29/10 at 4:54am
Thread Starter 

I am using a 68k resistor

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post #9 of 24
12/30/10 at 7:47am
Thread Starter 

anybody have any ideas?

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post #10 of 24
1/3/11 at 9:23am
Thread Starter 

help anybody?

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post #11 of 24
1/12/11 at 3:55am
Thread Starter 

bump for any ideas

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post #12 of 24
1/15/11 at 12:50am

I say U should just get an airport express, optical digital out, and a DAC.  

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post #13 of 24
1/15/11 at 7:04am

Hmm... I just made an LOD for a customer with an iPhone 4G and it worked for him (11/15 > 68k > 21).  Weird that Apple would do something different in that regard for the 4G Touch.  Well... okay... not that weird (good ol' Cupertino).

 

Unfortunately, sometimes it can take a bit of time before someone breaks down the latest iPod.  My only suggestion is go to pinouts.ru and try some of the other resistor values they have listed.  Perhaps it is just a matter of using a different resistor value.  That or do a bunch of Google searches, which - I imagine - you already have done.

 

Sorry can't be of much help.  If you find the magic combo - let us know!

 

Good luck!

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post #14 of 24
2/13/11 at 5:56am
Thread Starter 

bump for ideas

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post #15 of 24
2/13/11 at 11:53am

No idea why it isn't working...but I will give you a bump to the top because that dock is BEAUTIFUL!

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