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Sony G90 Dallas Chip DS1245Y Successfully Changed
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saigo



Joined: 09 Jan 2017
Posts: 6
Posted: Thu Jan 12, 2017 11:48 am    Post subject:
CIR Engineering wrote:
http://www.mouser.fr/ProductDetail/Maxim-Integrated/DS1245Y-70+/?qs=sGAEpiMZZMvaNBfR%2fsmQG1WKblw65Y6DoApxn%252bbDqmM%3d
Best regards,
craigr

The real Dallas chips Ordered.
Thanks Wink
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saigo



Joined: 09 Jan 2017
Posts: 6
Posted: Tue Feb 14, 2017 1:50 pm    Post subject:
Frank D wrote:

Hi

The chip programmer software should identify which spot is for chip 1. It has been a while since I programmed my last chip so I am just going from memory. From memory I think I found out spot 1 on the programmer from the programmers software.

Hi Franck,

I'm sorry to disturb you, but I need your help.
I have the PCB 50 version is when I try an action, I have systematically the pop up of error: "Privileged instruction."
Everything is correctly connected, I do not understand the problem.
What is the order of the procedure to be followed?

http://imagesia.com/pcb50_1d4k3
http://imagesia.com/pop_1d4jd

Thanks again.
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ElTopo



Joined: 07 Nov 2006
Posts: 1640
Posted: Mon Aug 07, 2017 7:47 pm    Post subject:
Hi all,

can this chip be used for replacement of the original Dallas chip ?

https://www.avnet.com/shop/us/p/memory/nvram/maxim-integrated-mxm--1/ds1245y-120-3074457345624719514



thanks
ElTopo
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cmjohnson



Joined: 03 Apr 2006
Posts: 5180
Location: Buried under G90s

Posted: Mon Aug 07, 2017 9:22 pm    Post subject:
Absolutely definitely yes. I've put that exact chip into two of my G90s.
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ElTopo



Joined: 07 Nov 2006
Posts: 1640
Posted: Tue Aug 08, 2017 5:51 am    Post subject:
thanks
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ElTopo



Joined: 07 Nov 2006
Posts: 1640
Posted: Thu Aug 10, 2017 7:23 pm    Post subject:
EPROM programmer and Dallas chips incoming....
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cmjohnson



Joined: 03 Apr 2006
Posts: 5180
Location: Buried under G90s

Posted: Thu Aug 10, 2017 11:12 pm    Post subject:
I would not have bought the eprom programmer unless I had other uses for it.

I just buy the new chip, label it, remove the old chip, label it, and send both to Craig Rounds for him to clone the old to the new,
and send both back to me.
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ElTopo



Joined: 07 Nov 2006
Posts: 1640
Posted: Fri Aug 11, 2017 6:17 am    Post subject:
Sure you can but where is the fun Mr. Green
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ElTopo



Joined: 07 Nov 2006
Posts: 1640
Posted: Fri Aug 11, 2017 9:33 am    Post subject:
Dallas chips arrived. Fresh and minty.

manufacture date: 1642M --> Year 2016 in 42th week Razz
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ElTopo



Joined: 07 Nov 2006
Posts: 1640
Posted: Sat Aug 12, 2017 3:09 pm    Post subject:
What to do if you cannot read out an old Dallas chip (year 1998).

Can another bin file be used ?

Anyone got one for me ?



thanks
ElTopo
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cmjohnson



Joined: 03 Apr 2006
Posts: 5180
Location: Buried under G90s

Posted: Sat Aug 12, 2017 4:30 pm    Post subject:
Craig would know for sure but I think you can even use a blank one, but that requires you to fully realign the whole projector,
every setting. And you will probably lose your serial number.
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ElTopo



Joined: 07 Nov 2006
Posts: 1640
Posted: Sat Aug 12, 2017 4:53 pm    Post subject:
I will setup from scratch and so it would not be an issue.
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ElTopo



Joined: 07 Nov 2006
Posts: 1640
Posted: Sat Aug 12, 2017 4:54 pm    Post subject:
You mean using a blank dallas chip ?
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ElTopo



Joined: 07 Nov 2006
Posts: 1640
Posted: Sat Aug 12, 2017 6:33 pm    Post subject:
IC233 : Boot program/Uploader program
IC333 : User data save
IC334 : Factory data save/Service data save/User data back up

For me that reads like that there is a backup of the dallas chip data on the IC334 ?!

Any chance for re-init the new blank Dallas chip when it's mounted on the YA board ?




cheers
ElTopo
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cmjohnson



Joined: 03 Apr 2006
Posts: 5180
Location: Buried under G90s

Posted: Sat Aug 12, 2017 8:07 pm    Post subject:
Yes, there is a service/initialization procedure.

I don't recall the specifics.

But, I do remember this much: You know how to enter the service mode, using the up-down arrow and enter keys.

Do the same thing but replace the up-down arrow button presses with left-right presses and the initialization procedure is in there....I think.

It'll ask you to confirm before committing any changes.
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ElTopo



Joined: 07 Nov 2006
Posts: 1640
Posted: Sun Aug 13, 2017 5:42 am    Post subject:
So in this case the projector is in standby when doing this ?
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ElTopo



Joined: 07 Nov 2006
Posts: 1640
Posted: Thu Aug 17, 2017 9:22 am    Post subject:
I have changed the Dallas chip and still got error 11 on the YA board.

Tried two different com ports with two different RS232 cables but no connect can be established.

I bought this cable

https://www.amazon.de/gp/aw/d/B000L9PKBY/ref=mp_s_a_1_2?__mk_de_DE=ÅMÅZÕÑ&qid=1502961707&sr=8-2&pi=AC_SX236_SY340_QL65&keywords=rs232+crossover&dpPl=1&dpID=41NIRDgU3WL&ref=plSrch


Anyone can help me out here ?



cheers and thanks
ElTopo
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cmjohnson



Joined: 03 Apr 2006
Posts: 5180
Location: Buried under G90s

Posted: Thu Aug 17, 2017 1:23 pm    Post subject:
Contact Craig Rounds. Nobody knows more about the G90 than he does.
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ElTopo



Joined: 07 Nov 2006
Posts: 1640
Posted: Thu Aug 17, 2017 3:03 pm    Post subject:
I flushed a BR909 InCeiling with that cable without issues Razz

What is wrong here Rolling Eyes

I've asked Craig.



thanks for support
ElTopo
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ElTopo



Joined: 07 Nov 2006
Posts: 1640
Posted: Mon Aug 21, 2017 5:36 pm    Post subject:
One step forward.

My RS232 cable (custom made) gives me the warning codes 11-18-11-18 on the Sony.

Something is still wrong with the cable i think.

I'll post in the buy section.

cheers
ElTopo
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