celld0wn over at DemonHades have found the JTag port on PS3’s BluRay drive board.
Rough translation from celld0wn below:
I found the JTag port for the Blu-ray Reader on the PlayStation 3. Last night after finishing the research meeting I went looking for information about BD integrated reader.
In and looking at the information that I found on the back of the plate reader I saw that there is no connector terminals, these terminals belong to a connector which connects ’something’ via terminals and through the Internet I found the points used in a JTag, including the TDO, TDI, TMS etc.
Originally developed for printed circuit boards, it is currently used for test of submodules of integrated circuits, and is also useful as a mechanism for debugging embedded applications, as it provides a backdoor to within the system.
When used as a debugging tool, an in-circuit emulator that uses JTag as the transport mechanism allows the programmer to access the debugging module that is integrated into the CPU. The debug module enables the programmer to correct their errors and code logic of their systems.
There are consumer products that have a JTag port integrated, so that the connections are often available on the PCB as part of the prototype phase of the product. These connections can provide a simple way to reverse-engineer.
As you can see we have a door strike to try to get the firmware, decrypted data, and all that is able to control the Blu-ray reader.
Thanks SCE for news tip.
So there is a possibility we can flash the drive firmware like on the 360 or make a drive chip. The PS3 scene has seen a lot of advancements in the last few weeks.
you do not worry! It is still a very far away!
From what I have read is that, the port is of no use. the Jtag port has been blown out while in manufacturing. So you cannot use it
.
but its still nice to see some progress.
I am no ps3 god or something . I just said what I gathered in other places
maybe you are right, but, maybe can a dev make a application what can connect to the Device. This is the hope what all have
I am still keeping my fingers crossed, I hope someone gets something out of this.
What the port is not usable??? Damn when something great is found there is always a but... Damn... (gets back to his 360 finishing his JTAG hack)
I have a broken 60 gig. I may be able to get the multimeter and oscilloscope readings that you need. I don't have an oscilloscope here, but I do have access to one in the lab so give me a few days and I will post my findings. If I may ask, what is the purpose of the scope here. Are you trying to find a certain sine wave?
can some one confirm this? BobbyBlunt can you test the port???
thanks!
i posted this from demonhades.org forum
just ask cjpc from ps3news but i heard he have a friend with the necessary equipment. i think they want to look if the port is blowed or there is voltage on it.
news comin' up from demonhades..
Any more info on this yet? Or is the topic dead?
i think we need a spanish translator :D i think they make some progress in mapping the jtag and the necessary voltages
look at demonhades.org 
I can help the translation, I am not a native speaker, but i can understand it pretty well, there must be a lot of spanish users here, you probably won`t need my help, but i can help if someone wants to.
Here is the forum topic demonhades.org translated from spanish to english all forum pages on this subject updated as of 102609 712am eastern time PDF I made for ya'll
http://www.mediafire.com/file/dmnzt2i3yyy/www.demonhades.org • jtag Provo.pdf
Basically what I got from that PDF:
And just like that this topic fell of the face of the earth.