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CIR Engineering
Joined: 25 Aug 2008
Posts: 4269
Location: Chicago USA & Berlin Germany
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| Posted: Sun Sep 05, 2010 2:31 pm Post subject: |
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Mac, you have to be correct in that it most likley is not a write once... your point about the JTAG makes perfect sense. I don't know why I was thinking it was a write once chip.
Maybe all the dead chips need is a reprogram. That would be cool.
craigr
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stefuel
Joined: 07 Mar 2006
Posts: 3353
Location: Green Harbor MA USA
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| Posted: Sun Sep 05, 2010 8:56 pm Post subject: |
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So did I read somwhere in a older thread that the firmware was located but the chip was unavailable?
If not, the firmware MUST be somewhere and obtainable.
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Chip
A Barco is only a AmPro with training wheels
Card carrying member of the AVS chain gang.
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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| Posted: Sun Sep 05, 2010 9:27 pm Post subject: |
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| stefuel wrote: | So did I read somwhere in a older thread that the firmware was located but the chip was unavailable?
If not, the firmware MUST be somewhere and obtainable. |
From what I remember was that John in france knew someone at sony and was trying to get them to get the info. But that contact had no luck or could not get upper management to give it up.
Athanasios
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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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| Posted: Mon Sep 06, 2010 9:35 pm Post subject: |
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| Nashou66 wrote: | | stefuel wrote: | So did I read somwhere in a older thread that the firmware was located but the chip was unavailable?
If not, the firmware MUST be somewhere and obtainable. |
From what I remember was that John in france knew someone at sony and was trying to get them to get the info. But that contact had no luck or could not get upper management to give it up.
Athanasios |
Yes, John had a connection at Sony and that ended up no good.
I also had conversations with some at Sony business/commercial and they contacted a higher up at Sony in Japan and that also led to a big zero. So there is NO firmware from Sony. I'm sure its somewhere but thats a challenge in itself.
So if the chip is not readable then the final option is really out there. Out there meaning someone would have to test a good chips function and write the software for another controlling device. Yeah, like that will happen.
Fortunately like I said a long time ago, there are not really that many failing ic's. I'm basically just doing this for fun now. Just to see if I can get a read. But unfortunately it is costing me money out of pocket with nothing to gain. Which is why the process has slowed down. There is really not a demand.
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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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| Posted: Mon Sep 06, 2010 9:37 pm Post subject: |
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| betel wrote: |
Still amazed how easily it fit into the trunk of your car. |
Yeah, I was surprised myself that we were able to slip it into the trunk. Its had a lot of miles put on it since then, lol.
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stefuel
Joined: 07 Mar 2006
Posts: 3353
Location: Green Harbor MA USA
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| Posted: Tue Sep 07, 2010 12:08 am Post subject: |
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| macgyver655 wrote: | | Nashou66 wrote: | | stefuel wrote: | So did I read somwhere in a older thread that the firmware was located but the chip was unavailable?
If not, the firmware MUST be somewhere and obtainable. |
From what I remember was that John in france knew someone at sony and was trying to get them to get the info. But that contact had no luck or could not get upper management to give it up.
Athanasios |
Yes, John had a connection at Sony and that ended up no good.
I also had conversations with some at Sony business/commercial and they contacted a higher up at Sony in Japan and that also led to a big zero. So there is NO firmware from Sony. I'm sure its somewhere but thats a challenge in itself.
So if the chip is not readable then the final option is really out there. Out there meaning someone would have to test a good chips function and write the software for another controlling device. Yeah, like that will happen.
Fortunately like I said a long time ago, there are not really that many failing ic's. I'm basically just doing this for fun now. Just to see if I can get a read. But unfortunately it is costing me money out of pocket with nothing to gain. Which is why the process has slowed down. There is really not a demand. |
It has to be somewhere at Sony but it's also probably with the IC's manufacturer. It's not like these things even qualify as being "mass produced" so it will be in only a few places. They were probably pre-loaded and packaged from the vendor. If the firmware isn't archived somewhere at Sony or at the IC manufacturer, it will be in a firmware writers collection. Geeks never dispose of their work unless it's incriminating evidence. They also leave hints as to who wrote it. If you can get a partial read, you might find the writer.
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Chip
A Barco is only a AmPro with training wheels
Card carrying member of the AVS chain gang.
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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stefuel
Joined: 07 Mar 2006
Posts: 3353
Location: Green Harbor MA USA
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| Posted: Tue Sep 07, 2010 12:38 am Post subject: |
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| Nashou66 wrote: | | stefuel wrote: | | Geeks never dispose of their work unless it's incriminating evidence. They also leave hints as to who wrote it. If you can get a partial read, you might find the writer. |
So how much sh*t have you disposed of Chip?
Athanasios |
When you look up pack-rat in the dictionary, there is a picture of me.
"disposed of" Only the incriminating stuff  ............and not even all of that 
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Chip
A Barco is only a AmPro with training wheels
Card carrying member of the AVS chain gang.
Last edited by stefuel on Tue Sep 07, 2010 1:12 am; edited 1 time in total
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Curt Palme
CRT Tech
Joined: 08 Mar 2006
Posts: 24396
Location: Langley, BC
TV/Projector: All of them!
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| Posted: Tue Sep 07, 2010 1:08 am Post subject: |
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I thought we had all the bases covered in the other super long thread with regards to this NOT being possible. It also seems that the bad YA boards are at this point far fewer between, we had a run of them about 2 years ago.
With me selling retubed G90s for $5K at this point, even if the chip could have been cloned for say $10K, the day of that warranting that kind of expense was about 5 years ago. Sad but true.
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