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,
1st have a look here
https://www.ebay.de/itm/Bang-Olufsen-B-O-BeoMaster-5-Main-Board-Part-Number-8005051-Boxed-Sealed/113010975829?hash=item1a4ffaa455:g:nLwAAOSwOGFbBaJE
Hi
have you tried reboot from recovery? You must plug a old fashion keyboard to the USB on the masterunit, then you can select the reboot with up and down / enter.
BeoVision11, BeoVision10, BeoSound 5, BeoSound 3500, BeoLab 9, BeoLab 4, BeoLab 6000, BeoLab 8000, BeoSound 3200, Beosound Moment,NL/ML converter, delaybox, var.BeoPlay Speakers
With my limited understanding of PC functioning, I would say that if you see the invitation for recovery - it is already the part of Windows booting process. Since you get there - most probably BIOS and POST functions of the motherboard work fine. At least CPU, Memory, HDD and the VideoCard as well as USB since you are able to use keyboard.
My bet is that it is corruption of the main Windows or BM-recovery partition of the HDD.
https://beointegration.wordpress.com/
1:BV7+BL7.1+BS4+BL6000+BV6+BL2000+MLGW+Beo4
2:BV7+BL7.4+BL3500+BM5+BL3+Lutron GE/Sivoia QS+HikVision+Dune+LinTronic+BLGW+Beo4+Beo5+Essence remote+BeoTime+BeoLinkPC+BL4+KNX+... BeoMaster900
That's an interesting hypothesis, but how to test it? It would be so much easier with the BeoMaster 5 ServiceTool!
I recall now that I had the similar case after relocation of the unit, when BS5 went into the black screen after the initial boot invitation. After minute or so the red LED started to send SOS signals. That happened again and again after reboot. I was thinking of worst, but the reason was only loose connection in one of the cables.
The explanation is that BS5 do not see all of the connected accessories, cannot load the driver and stops booting.
So, it will not be useless anyway to take a look on all the connectors between head and the master unit, clean and check if they are inserted firmly. Who knows, it may help.
Thanks for the advice. In my case, BS5 is fine. The problem is BM5 unfortunately.
I replaced the BM5 motherboard with one purchased on eBay. Works (again) like a charm!
Of course, in the absence of BeoMaster 5 maintenance tool, the product has no serial number and the software updates cannot be performed. Surprinsingly, the Bang & Olufsen splash screen shows at start up instead of EPIA.
I reiterate my question: does anyone has the BeoMaster 5 maintenance tool?
Also, a probably naive question: can the original motherboard be repaired? It seems that all defective motherboards/modules of B&O products are sent back to Denmark for recycling/rejuvenation before being sold again (?)
Everything back to normal thanks to the help of forum members, fortunately. No help at all from B&O repair: the only comment I got from them was "démerdez-vous!" The French speaking people of this forum will appreciate...
It is possible to repair the motherboard. An electrician can replace the caps (which is usually what is bad) and then it works again!
Yes, that's what I thought too. It would be a shame to just get rid of the board, while the replacement of some components can give it a second life.
I have one BM5 motherboar on my working desk.
did try to change some capacitors but till now no luck.
and i find out that i have some short circuit on the board.
I have not yet discovered where.