iPhone dock disassembled

Tags: disassembly, dock, hip waders, iphone, ipod, unscrewd
Just a few photos of the PCB inside the iPhone dock. You'll notice that the PCB is multilayer, with the conductors in the center layers for shielding.

There's a logic chip here - the numbers read HCF4098 EZ4N715 - Googling reveals that it's a dual monostable multivibrator - that's electronics speak for a timer chip. Probably for charge timing.
Here's a detail on the iPhone side of the dock - note the missing pins. According to the iPod dock pinout at pinouts.ru, we've got pins 8, 9, 10, 14, 17, 22, 24, and 26 missing. These correspond to the Video-Out and Firewire interfaces of old iPods - oddly the TPB+ Firewire pin is still present, probably so the iPhone can notify you that Firewire is not supported.
Here's the bottom - note the heavy shielding and numerous test points.
Detail of test points.
The connectors are pretty dense in there - would be very hard to get a soldering iron on them.

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Comments:

Posted by ayork 35 weeks ago ( 14-Nov-2007 08:52:51 )

Can you please tell me which pin has the +12 volts?

They have apparently moved it from pins 19 & 20 on older units?

arthuryork@hotmail.com

Posted by jalas 13 weeks ago ( 21-Apr-2008 20:40:55 )

Did the dock come apart relatively easily when you opened it up? Also, I was looking at the pics of the pcb, and there's a suspicious looking little part with 6 pins just to the right of the HCF4098. From what you're able to tell, does it look like a resistor network to you, or perhaps something else? My current quest is to build an AUX in cable for my iPhone... one that my iPhone doesn't decide is "not compatible with iPhone." If I can build a cable that looks (at least signal-wise) like a dock to the iPhone, I should be able to avoid the incompatibility messages. Any ideas?

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