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Re: Beomaster 5000 CPU module (or a complete parts unit)

tournedos — Tue, 10 Nov 2009 04:17:56 GMT

Perseverance, people! This was my second repair job that took more than six months to find a spare

Thanks to Jonathan, I got a new cpu module. Now the Beomaster (I had fixed power supply and power amp issues in the meantime) lights up the standby dot, turns on via Datalink and plays quite nicely. IR is still dead as are most of the front panel keys, but I'm sure I can sort these out. Finally something to cover up the stacking marks on my CD50!

Re: Beomaster 5000 CPU module (or a complete parts unit)

tournedos — Tue, 27 Oct 2009 13:16:27 GMT

I'll send you a PM!

Re: Beomaster 5000 CPU module (or a complete parts unit)

Jonathan — Tue, 27 Oct 2009 11:54:02 GMT

Mika,

It's not worth it to me to have it fixed, as I have a BM 7000, Overture and BM 1900 in various rooms and it just wouldn't be used.

What postal code does it need to be shipped to?

Re: Beomaster 5000 CPU module (or a complete parts unit)

tournedos — Mon, 26 Oct 2009 17:33:09 GMT

Hi Jonathan,

I'll need to give that a little thought. The problem is that we're on the different sides of the pond, and I'm sure shipping the complete Beomaster is out. Likewise, UPS for just the module might still cost more than a working machine brought to my door from German eBay... But, if you can get a good quote for it or can consider regular mail, I'm all ears. To give you some idea, the module is a little larger than a Beo4 and weighs about the same.

Have you considered having the BM serviced? Possibly it just needs new idle current trimpots

Re: Beomaster 5000 CPU module (or a complete parts unit)

Jonathan — Mon, 26 Oct 2009 08:07:26 GMT

I have a Beomaster 5000 that I am going to retire. It works, but after some listening tests over the weekend, I've realized that it no longer has the sound quality it once had. It also runs very hot.

I can remove the CPU (with some guidance,) if that's all you're looking for or ship the entire unit. I'll sell the MCP 5000 on Ebay as it won't work with my BM 7000 (need a MCP 5500 or 6500 if anyone has one for a reasonable price.)

Just cover the cost of shipping and packaging. UPS would be the most convenient for me and PayPal is fine for payment.

Regards,

Jonathan

Re: Beomaster 5000 CPU module (or a complete parts unit)

tournedos — Wed, 21 Oct 2009 15:09:05 GMT

Hi Nick, thanks for the offer. The processor itself is dead. It's a 8051, which is a mask ROM version of 8031 - so really no hope of a straight repair without an original chip from another BM5000. If the program dump was available somewhere, it might be possible to burn it on an OTP or flash version of 8751 - only that the flash chips are much newer, I haven't actually looked if they are a drop-in match electrically.

I'm not going to scrap the Beomaster in any case - if I can't find the spare, I have other plans which will eventually be published on the forum

Re: Beomaster 5000 CPU module (or a complete parts unit)

solderon29 — Wed, 21 Oct 2009 14:59:19 GMT

What's the problem with your Beomaster 5000 "brain box"?Maybe I can help.I have the training notes for this system,and have repaired several over the years.

Regards,

Nick

Re: Beomaster 5000 CPU module (or a complete parts unit)

tournedos — Wed, 07 Oct 2009 06:12:53 GMT

Last chance before the skip is calling (or something completely different happens...).

Just for clarity, I do not want to buy a working Beomaster 5000 or anything else that it might come with - I don't like it that much - I want to fix this one I have already

Re: Beomaster 5000 CPU module (or a complete parts unit)

tournedos — Tue, 31 Mar 2009 09:20:32 GMT

Bumpity bump

(and yes, I of course mean the '80s Beomaster 5000)

Re: Beomaster 5000 CPU module (or a complete parts unit)

Spiros — Tue, 10 Mar 2009 16:54:56 GMT

This is really cheap!!!!!!!!!!!!!!!!!!!!!!!!!!! I'm really too far away and transportation cost will kill any kind of bargain

Re: Beomaster 5000 CPU module (or a complete parts unit)

Dillen — Tue, 10 Mar 2009 16:48:10 GMT

It was a set of

Beomaster 5000
Beolab 5000
Beovox 3000 (on homemade stands)
Beovox 2500 cubes

at SEK 1500 (~ 120 UK pounds) and looking very nice at that.

This years bargain for someone.

Martin

Re: Beomaster 5000 CPU module (or a complete parts unit)

Spiros — Tue, 10 Mar 2009 16:11:23 GMT

I couldn't understand the price, but quite honestly this is a really must have for every collector.

Especially if it is in good condition.

Re: Beomaster 5000 CPU module (or a complete parts unit)

Dillen — Tue, 10 Mar 2009 12:39:34 GMT

That's the 1960's Beomaster 5000. It doesn't have the CPU module.

Still an interesting ad with a very nice price for that system.

Martin

Edit: And already gone again, I see.

Re: Beomaster 5000 CPU module (or a complete parts unit)

mbor — Tue, 10 Mar 2009 07:18:06 GMT

Maybe this ad could be interesting for you?

http://www.blocket.se/vi/20616854.htm?ca=11_s

Regards, Martijn

Beomaster 5000 CPU module (or a complete parts unit)

tournedos — Mon, 09 Mar 2009 13:17:36 GMT

I need a working CPU module (PCB 4, the big one slotted behind the front panel) for my Beomaster 5000. I can take just the module, or a complete unit for parts if it does at least something sensible, i.e turns on and displays something. Cosmetics irrelevant!

Located in Finland, will pay shipping (PayPal or EU bank transfer OK) and something we can agree on for the actual goods.