Almost all pins found - listing provided and some simple circuitry - G Tablet Accessories

Hey guys,
I had a Galaxy Tab connector on hand and made it fit this thing using a dremel. (Yeah, I know a Sansa dock connector fits perfect...yada yada). I have a Sansa connector coming anyway. This is for initial testing.
Can someone take DETAILED pictures of the inside of their HDMI cables and their Docks as well as internals of their Gtablets by the dock connector? (My only camera are my Evos (4G +3D) and a Galaxy S). I have opened mine countless times, but a good picture helps a TON!
I can do some testing using a logic analyzer, scope, and DMM. However, that will not show me everything as many connections require commands sent in the right protocol to activate. Pictures and such would be of a great help.
If it works out, I can make up some board files and we can make our own docks and cables for whatever our needs are (also I have a friend who owns an online shop specializing in this stuff to get some commercially done).
POST YOUR PICTURES!!!!!
EDIT: 10/01/11
FOUND MORE PINS!
GROUND PINS (universal and non-isolated): 1, 8, 11, 14, 17, 24, 26
5V OUTPUT: 3, 4
3.3V OUTPUT: 5
Pin 23 looks like a mode controlling pin and might be somehow correlated to pin 21.
TO PUT THE TABLET INTO DOCK MODE : Ground Pin 23.
TO STOP/START Music: 10 Ohm Interrupt on Pin 23.
HDMI OUTPUT:
*requires small inductors on the active data signals
H3 - 6
H4 - 7
H2 - 9
H1 - 10
H5 - 12
H6 - 13
H7 - 15
H8 - 16
The Grounds 8, 11, 14, and 17 ARE THE SHIELD SIGNAL GROUNDS.
Serial EEPROM acts to tell the receiver that it is hooked up to HDMI. This is easily to simulate - YAY!
YES, WE HAVE DIRECT HDMI OUTPUT!
12V INPUT: Pin 27
Charging Ground: Pin 26
AUDIO OUTPUT:
POLE 1 + 2: Pin 25
POLE 3: 22
POLE 4: 23
This means that Audio Ground to be used is 24.
23 is the Mic or 4th Pole used for mic input and remote control!
The Lat thing is the USB Host out port. The SMSL chip seems to be acting like a hub so it is really precise work. Not bad for a couple of hours hacking Eh?
I HAVE A FRIEND OF MINE AT KINETIKA SYSTEMS BUYING MORE SANSA DOCK CONNECTORS AND POD-BREAKOUT BOARDS FOR OUR GTABLET. FOR NOW, YOU CAN MODIFY AN IPOD DOCK TO FIT AND USE THE POD-BREAKOUT FOR THAT.
Please thank me if you find this post useful.

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I managed to spend an hour or so with it today.
Here is what I have thus far.
GROUND PINS (universal and non-isolated): 1, 8, 11, 14, 17, 24, 26
5V OUTPUT: 3, 4
3.3V OUTPUT: 5
Pin 23 looks like a mode controlling pin and might be somehow correlated to pin 21.
TO PUT THE TABLET INTO DOCK MODE : Ground Pin 23.
TO STOP/START Music: 10 Ohm Interrupt on Pin 23.
25 and 27 are some sort of data pins.
Pin 2 Might be Power In (don't know for sure).
I have an HDMI cable and Dock coming in a week or so for better testing/analyzation.
The stuff I figured out just now was using an Osc. Scope and a DMM. I am getting access to a better logic analyser that might be able to read and imitate HDMI to figure that out if it doesn't need a chip for interpretation.
There are a LOT of ground pins and couldn't find an audio out on the dock.
SEND ME PICS FOR BETTER AND FASTER PROGRESS!!!!!

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Can anyone show me the top of the board or without the sticker?
Credit for pic to it2steve
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What's the pics do you need? The 30pin connector or DOCK'S connector? Maybe i can do something for you. I have both of them 4 month ago.

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Hdmi pins, audio pins, charging pins found!

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Why are you trying to figure all this out? There is both a charging dock with ethernet and an HDMI cable available for purchase?
Just curious?

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First off, this is information that we SHOULD KNOW.
Secondly, the DOCKS are no longer made and becoming very hard to get.
Knowing this information, people can make custom cables and adapters to suit their needs. There are many people who their 12V port on the side of their Gtab stopped working. at this point, they have no other option than to shell out $60 for a dock when they can fix it or make an adapter for less than $5 shipped.
The HDMI cable is only so long, knowing the information above you can take a $3 Deal extreme cable and chop off the ends then attach to a dock connector and a small pic controller for whatever the heck you want.
NONE OF THE CURRENT OPTIONS GIVE YOU THE LINE OUT AUDIO!!!!!
People into Hi-fi or who want to have the Gtab output the best audio possible now have a way to get that.
Also, WHY NOT FIND THIS OUT?
This is done as a service to the Gtablet community. The accessories that are out there are in short supply and DO NO DO EVERYTHING THAT THE GTABLET CAN DO FROM THE DOCK CONNECTOR.
Plus, given the extra space that we have inside of the GTABLET and extra space on the sides of the Gtablet, we can actually ADD HDMI OUTPUT to the side of the device as well as pretty much any of the docking features that we miss.
beeja75 said:
Why are you trying to figure all this out? There is both a charging dock with ethernet and an HDMI cable available for purchase?
Just curious?
Click to expand...
Click to collapse

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Ok I am SOOOO interested in this but have little electrical experience, so if a cable can be made I am down with buying it.
I want to turn my Gtab into a car stereo, right now I am looking to convert hdmi to RCA fo audio and video output, so Get a dock, connect an HDMI to the back of the dock (or one of the new cables) ==> plug into an analog converter for RCA video and audio out ==> connect splitter to video and sound ==> connect video to external lcd, and sound to my amp.
I have two monitors for the kids in the back for movies, so i would hate to loose them
The current cable that dont require a dock is almost perfect except for power, I would want to charge the pad when connected, so a 12 volt in would be needed, then I would want(would be nice but I can get this eleswhere, 7805 voltage regulator off a 12 volt line.) to use the 5 volt output to power the HDMI to RCA converter which is 5 volts.
any chance you would be intereted in a custom cable?
Here is the converter I am looking at
http://www.amazon.com/HDMI-Composite-S-Video-Converter-3RCA/dp/B0047PDBP0
Obviously it would not be ideal to convert digi to anlog but this the only way I know.

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Yeah, this is why I am doing this.
If you can find an HDMI cable that has a built in serial identification chip (prob one meant for a different mobile device), then you could chop that off and use it connected to the pins above.
The 5V output can't be more than a few hundred Ma and that adapter might require more, but you can always just check it.
Personally, I would just buy a Beagle or Panda board to stick back there and a 10 inch capacitive display (not that expensive believe it or not). That way you can have it run multiple OS' and have a bunch of I/O.

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ethernet
I didn't see the pinouts for the ethernet.
or did I miss something?

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The Ethernet chip actually is not direct Ethernet, it is in fact a USB connection. The USB host and the Ethernet are actually sharing the same connection on the dock. The SMSL chip is almost acting as a mini hub.

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I'm interested in my making some cables for my Gtab. You said that your friend was ordering some Sansa dock connectors. Where can those be ordered from? Is there a generic term for that type connector? I'm wondering if some of the electronic supply catalogs might have them.

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question
Ok I have an old sanse dock/usb cable that fits perfectly in my gtablet... Soooooo What can do with that as this point... I would love to use it to make a Tranformer like dock with keyboard and addition usb or hdmi/audio out etc... From what i have read that is the idea, right?... Man if that would work that would bring new life to this Gtablet... I know nothing about pins and such... Is this something I will be able to do (follow direction posted) once it is figured out?
Thanks...

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Childofthehorn said:
Hey guys,
I had a Galaxy Tab connector on hand and made it fit this thing using a dremel. (Yeah, I know a Sansa dock connector fits perfect...yada yada). I have a Sansa connector coming anyway. This is for initial testing.
Can someone take DETAILED pictures of the inside of their HDMI cables and their Docks as well as internals of their Gtablets by the dock connector? (My only camera are my Evos (4G +3D) and a Galaxy S). I have opened mine countless times, but a good picture helps a TON!
I can do some testing using a logic analyzer, scope, and DMM. However, that will not show me everything as many connections require commands sent in the right protocol to activate. Pictures and such would be of a great help.
If it works out, I can make up some board files and we can make our own docks and cables for whatever our needs are (also I have a friend who owns an online shop specializing in this stuff to get some commercially done).
POST YOUR PICTURES!!!!!
EDIT: 10/01/11
FOUND MORE PINS!
GROUND PINS (universal and non-isolated): 1, 8, 11, 14, 17, 24, 26
5V OUTPUT: 3, 4
3.3V OUTPUT: 5
Pin 23 looks like a mode controlling pin and might be somehow correlated to pin 21.
TO PUT THE TABLET INTO DOCK MODE : Ground Pin 23.
TO STOP/START Music: 10 Ohm Interrupt on Pin 23.
HDMI OUTPUT:
*requires small inductors on the active data signals
H3 - 6
H4 - 7
H2 - 9
H1 - 10
H5 - 12
H6 - 13
H7 - 15
H8 - 16
The Grounds 8, 11, 14, and 17 ARE THE SHIELD SIGNAL GROUNDS.
Serial EEPROM acts to tell the receiver that it is hooked up to HDMI. This is easily to simulate - YAY!
YES, WE HAVE DIRECT HDMI OUTPUT!
12V INPUT: Pin 27
Charging Ground: Pin 26
AUDIO OUTPUT:
POLE 1 + 2: Pin 25
POLE 3: 22
POLE 4: 23
This means that Audio Ground to be used is 24.
23 is the Mic or 4th Pole used for mic input and remote control!
The Lat thing is the USB Host out port. The SMSL chip seems to be acting like a hub so it is really precise work. Not bad for a couple of hours hacking Eh?
I HAVE A FRIEND OF MINE AT KINETIKA SYSTEMS BUYING MORE SANSA DOCK CONNECTORS AND POD-BREAKOUT BOARDS FOR OUR GTABLET. FOR NOW, YOU CAN MODIFY AN IPOD DOCK TO FIT AND USE THE POD-BREAKOUT FOR THAT.
Please thank me if you find this post useful.
Click to expand...
Click to collapse
I bought two of the Sansa breakout connectors way back in the beginning of the g tab life from Kinetika and IT DID NOT FIT even though owners of an original cable report that it does fit. The Kinetkka Sansa connector in fact fits the ipod....i called and wrote to Mike at Kinetika and they did NOTHING to fix the problem. Beware!

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xjarl said:
What's the pics do you need? The 30pin connector or DOCK'S connector? Maybe i can do something for you. I have both of them 4 month ago.
Click to expand...
Click to collapse
Do you have a picture of the bottom of the PCB?