ARCHIVED FORUM -- March 2012 to February 2022READ ONLY FORUM
This is the second Archived Forum which was active between 1st March 2012 and 23rd February 2022
Hi dougie
Yes, it's possible to upgrade bm3500 for 2way control. I did it successfully some years ago. You just change the chip with the software (eprom IC3). There is no specific upgrade chip, but IC3 from bm4500 fits. To get 2way control you also need to have the newer version of the operation panel. You will find the difference in an older post. Some bm3500's ask for a code after the software swap. As far as i remember the code is 1271.
Like some other members i also changed the covers (bm3500, bg3500, bgcd3500 and bc3500) from gray to mirror which suits the black housing very nice.
Good luck
David
Hello,
Should I wish to upgrade the sw of a BM3500 to the sw of the BM4500, how could I get the relevant eprom?
Will it give me access to the timer function?
Alain
Hi Alain
You can buy a cheap broken BM4500 or order the eprom from B&O (don't know whether this particular chip is still available). Memory chips for Beomasters are rare on ebay.
Yes, it will give you all the functionality of the BM4500 including timer function (BM3500+eprom BM4500+Housing BM4500 = BM4500 as you can see in the repair manual of the BM4500).
Good luck and best regards
Maybe a Eeprom copy would help. Have about 15 BM4500's. Made a copy once for a BC9300 which was totally dead and volia, back to life!
Brengen & Ophalen
Hello Leslie,
I asked B&O but no answer so far, if you can provide me with such copy I would of course be delighted.
Is it an idea to make the software downloadable on this site? Maybe for silver/gold users only
Traverso: Hello Leslie, I asked B&O but no answer so far, if you can provide me with such copy I would of course be delighted. Alain
Need to find time to do that. Friend of mine can make a copy of this BM4500 Eprom. Any specific S/W version?
pacificocean: Is it an idea to make the software downloadable on this site? Maybe for silver/gold users only
Not sure if that's allowed?
probably not if the equipment is still under copyrights protection.
I am not sure about the 25 years delay for this
any version will do
I am interested as well if the version is 2.1 or higher. The one with two way controll and timer function.
Dose anyone can help me to get a eprom with timer function
Thanks Wolfgang
Hi
I was able to bye a old damaged Beomaster 4500 and copy the eprom. Put it to the BM 3500 and it worked. Set Time and display it on Beolab 3500 works fine. Also setting theTimer is possible. (I used a Beolink 5000 for both)