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  • Re: Beomaster 8000 - What Processor IC's Do You Have

    Hi John, Did a few work today on my BM8000 in the microcomputer area, so I took the opportunity to take a photo of the IC. I also have a second BM8000 (most recent serial) that I keep for parts (but never took anything out of it since I would prefer repairing it instead.) A strange thing I notice : on the recent one, jumpers are soldered directly to the ic pins. On my "working" unit, the jumpers are soldered on the back of the PCB... Guillaume
    Posted to The Workbench (Forum) by hamacbleu on Sun, Dec 8 2019
  • Re: Beomaster8000 volume/clipping issues

    Problem no. 2 rings a bell : I remember I had a similar problem with the volume changing abruptly at about 2.8, with clipping light on, only on the left channel. I was going crazy since the problem was not present in service position. The volume would also change abruptly between 1.3 and 1.2. And 0.0 was definitely not 0.0. Does yours also behave like this? I found out that on the bottom left of the power supply board, there is a pin (P47), with a red wire attached, that goes to the display board
    Posted to The Workbench (Forum) by hamacbleu on Tue, Dec 3 2019
  • Re: Beomaster 8000 main relays not turning off

    Hi John, No, there wasn't! I was not aware of that. Perhaps it was removed when the jumpers were added in the past. After i've put back the cover yesterday, I had another case of this short so I added a piece of elecric tape, under the cover, right above this location. This original solution, however, seems to be more elegant though!
    Posted to Vintage Products (Forum) by hamacbleu on Mon, Aug 27 2018
  • Re: Beomaster 8000 main relays not turning off

    96 Normal 0 false false false EN-US X-NONE X-NONE Thanks, I'm happy I got it back to work. I spent so much time on the whole set back then, I couldn't stand at the idea of keeping them only as pieces of furniture, nor at the idea of swapping the BM8000 for another receiver. However, I perceive the 8000 set as one that could give up at any time : It always surprises me how beautiful the package is, but how nightmarish and compact the electronics fits in. I'm super picky when using it,
    Posted to Vintage Products (Forum) by hamacbleu on Mon, Aug 27 2018
  • Speaker pairing for beomaster 2400-2?

    I would say S45-2. It completes my setup, which somewhat is identical, beautifully. It's also a smaller option than S75, which are, by the way, also a good choice
    Posted to Vintage Products (Forum) by hamacbleu on Sun, Aug 26 2018
  • Re: Beomaster 8000 main relays not turning off

    Thanks John for your input It seems I just solved my problem... This morning, when I woke up, I tried to launch the test program by pressing "Monitor" and "Standby" at the same time, as described in the service manual. I got TE 12, which points to a defect 9IC4 or a short Ic pin to chassis (pins 14, 15, 16, 17, 18, 19, 20.) I was suspecting pin 16 since it's related to the activation of the +-55V rails. I thought, maybe that the solder blob created by inserting the jumpers
    Posted to Vintage Products (Forum) by hamacbleu on Sun, Aug 26 2018
  • Re: Beomaster 8000 tuner problem

    Hi, I don't know if it can be related but today, when I opened my unit, I forgot to put back the tuner plug from the microcomputer, which is well hidden under those ribbon cables. Could it be a bad connection there? The plug is shown here, under the green circle :
    Posted to Vintage Products (Forum) by hamacbleu on Sat, Aug 25 2018
  • Beomaster 8000 main relays not turning off

    Hi to all, Another BM8000 problem (Maybe it will get more commons now after 40 years) I’m the proud owner of a beautiful Beosystem 8000 that I partially “restored” about five years ago. More precisely, the Beomaster 8000 has served me well, without any issue, until a few months ago. About 8 months ago, the unit started to turn itself off intermittently, on standby, for no reasons. I tried to reflow some of the vias on the microcomputer board and the problem completely disappeared
    Posted to Vintage Products (Forum) by hamacbleu on Sat, Aug 25 2018
    Filed under: Beomaster 8000 relays
  • Re: Beogram 4002 pros and cons AC vs DC motor?

    Hi, For your curiosity, here's an old post with a nice pictures showing the subtle difference between the two kind of platters : https://archivedforum.beoworld.org/forums/p/35223/292539.aspx The one with the thinner ribs (Beogram 4000, 4002 early and 6000 early) is made in one heavy block. Later types have a black and smaller subplatter, seperated from the main aluminum platter above it. I don't know, however, if the switch between AC and DC followed exactly this manufacturing difference
    Posted to Vintage Products (Forum) by hamacbleu on Sun, Jul 22 2018
  • Re: Beogram 4002 pros and cons AC vs DC motor?

    I would also mention that the ribs on the platter of the AC version are thinner than the one with the independent subplatter (4002 DC and 4004), making it aesthetically more like the 4000. It might not be a big concern though! However, that detail has always bugged me! Guillaume
    Posted to Vintage Products (Forum) by hamacbleu on Sat, Jul 21 2018
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