Hi,

i was looking for the same thing and apparently B&O won't give the EEPROM info away just like that as in some cases the PIN number might be encrypted in there . Good luck anyway

Hi all, and Happy New Year !

I'll will answer to my question :

I received an PM from a German guy (Die Bogener) wich send me the file i wanted.  But after this, i didn't really know how to do.  So, he proposed me to send him the Cpu Board of my Beomaster 5500, what i did.

A few days later, after repairing, he returned the Cpu Board; i mounted it in my Beomaster , and voilà, it's working very well now. This guy was very helpfull and did the work for only some Euros.

So December was very happy for me:

- First : a nice beoworlder repaired my Beomaster

- Second: i won a pair of Beolab 8000 on Christmas Price Draw

What ask furthermore ....

Regards

Theoz (zazou)

-

hello,

i have an eeprom problem with my bc1. how can i contact this miracle-worker to see if he can save my bc1 ?  thanks !

- scott

Zazouzt wrote:

received an PM from a German guy (Die Bogener) wich send me the file i wanted.  But after this, i didn't really know how to do

It's not that complicated. You need an Eeprom programmer (40 euro) in order to read the file, buy an Eeprom chip 27C512 approx. 1 euro and just copy the file to your chip.

There is a huge difference between a Eprom and a EEprom.

The Eprom is only programmed one time, then never again.

The EEprom is programmed in System and can be rewritten by Software, like todays Flash Memory.

Programming a Eprom is easy... EEprom is much more difficult, because the data are unique. Every BC-1 contains its Serial number, theft protection inside this EEprom. You will not get this data... 

I was talking about copying BC9000 series and Ouverture likes. Also BM3500/4500's. I meant Eeprom where E stands for Erasble right?

Right.

The EEprom can erase and rewrite a page of its Memory, some Bytes. It is usual, that there is also a protected area where data like series numbers and Access codes are stored. These data are unique and cannot be copied.... only if you copy the chip from a functioning BC-1 or whatever. Then you have a copy of this unit where you maybe have a lot of fun with if it comes to a Service...

Let's say, every B&O Hardware with an Access code to activate its function has a EEprom or a Flash Memory. And there the Problem with replacement Begins.

The old BM5500-7000 has also a EEPROM, but it uses this chip as a storage for the Station data, loudness, bass and treble, not for codes. This old stuff can be repaired easily.

Die_Bogener wrote:

The old BM5500-7000 has also a EEPROM, but it uses this chip as a storage for the Station data, loudness, bass and treble, not for codes. This old stuff can be repaired easily.

They have an EPROM (27c128 or 27c256 or something like that) for the CPU code whereas I always thought of the
users memory as being NVRAM rather than EEPROM?
An EEPROM has no need for battery support.

Martin

It uses a 256bit x8 Serial NV chip with a battery backup, right. EEprom is wrong in this case. Some other Hardware of this time uses Serial 8-pin EEproms... MX tv, BS2500