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  • Re: Beomaster8000 repair/resoration

    Hi Lonnie, just measured through your suggestions: 6TR18-C showed about +430mV in STBY about 17.imV in ON and at 7R1 fluctuating voltages somewhere between -100mV to - 1.1V shouldn’t I see about -25V at the kathode of 7D2 ?? I get basically 0V ALF
    Posted to Vintage Products (Forum) by ALF on Sun, Mar 24 2019
  • Re: Beomaster8000 repair/resoration

    Apologies Lonnie, dived straight into verifying your suggestions - should have looked at the circuit diagram....didn’t realise that 6TR18-C is against ground.... you can’t measure ground against ground ! I have to revisit the measurments and will report back once done. ALf
    Posted to Vintage Products (Forum) by ALF on Sun, Mar 24 2019
  • Re: Beomaster8000 repair/resoration

    Hi Lonnie, at 7R1 I get about 27VAC in STBY and about 2VAC in ON mode. no, I don’t have the -15V anymore in STBY. I can not verify the measurments at 6TR18 you suggested ?! ALF
    Posted to Vintage Products (Forum) by ALF on Sun, Mar 24 2019
  • Re: Beomaster8000 repair/resoration

    Thanks John, indeed, checking someone else’ work is worth doing: first finding were on the tone/filter board with 2 caps in the wrong way (๐Ÿ™„) and a cracked IC2 chip. Off to the power supply board 6: all caps are fine and put in the correct way, good news.... with P76 unplugged I have all voltage regulators IC4/5/6 delivering with IC4 (5V) gets 11.3V supply, IC5(+15V) gets 24.4V supply and IC6(-15V) gets -25.2V and P48 pin2/3 delivers 5V. so far so good but, I am loosing the 5V the moment I
    Posted to Vintage Products (Forum) by ALF on Sat, Mar 23 2019
  • Beomaster8000 repair/resoration

    greetings ALL ๐Ÿ˜ I decided to start a new thread with my new donor-unit BM8000 - this time in the correct forum ! this donor unit was purchased as a parts-reservoir but turned out in very nice cosmetic condition. so I took a close look and noticed all boards were recapped, the displac is fine....well, so far so good. further testing reveiled there are issues: Plugged in it shows the StBy dot. turning on, no relay clicking while the display comes on.....hmmm ?! checked the power supply board....all
    Posted to Vintage Products (Forum) by ALF on Thu, Mar 21 2019
  • Re: Beomaster8000 project

    Hi John, not sure what happned here but I had two replies from you, one for a Beogram8002 repair post....not mine (sorry)? and one for the current Beomaster 8000 dilema. Allow a very brief recap of events: it started with my first 240V BM800 unit, not getting the volume going plus some cross-over issues switching between FM, TP1/TP2. after I had done a complete recap and trimmer replacements where appropriate (excl the big 4 caps). it followed with another 240V BM8000 unit, earmarkd as a parts donor
    Posted to BeoGram (Forum) by ALF on Tue, Mar 19 2019
  • Re: Beomaster8000 project

    Ok, after a lenghty wait I am back on track, or should I rather say back on double- track ?!! the donor unit has arrived and much to my surprise looks far too nice to salvage......perfect display and the rest has been completely re-capped, excl the 4 big capacitors. now I feel like sitting between chairs....which one to prioritise the BM -which started this post- is still waiting for the speaker switch replacements from Beolover - both of the original switches are mal-functioning ๐Ÿ˜ก, something I
    Posted to BeoGram (Forum) by ALF on Mon, Mar 18 2019
  • Re: Beomaster8000 speaker switch replacements

    Coming from Beolover !! case closed ๐Ÿ˜ ALF
    Posted to BeoWorld Private Wanted (Forum) by ALF on Sun, Mar 3 2019
  • Beomaster8000 speaker switch replacements

    hi all, I am looking for complete speaker switch replacements for my BM8000 ๐Ÿ˜ณ please check your spare part vaults and let me know if you can offer a pair ?! as always - Thank You ๐Ÿค— ALF
    Posted to BeoWorld Private Wanted (Forum) by ALF on Wed, Feb 27 2019
    Filed under: BM8000 speaker switch replacements
  • Re: Beomaster8000 project

    A couple have been band-aided so far like 9P83, 9P78, 9P79 and 9P81 but that is definitely not the correct way ! those 9Pxx connectors are very fragile and should be replaced - that is why I want to see whether the coming donor unit has better ones or Steve at sounds heavenly will be contacted. I do not have any neccessary tools to fit the ribbons to their plugs ๐Ÿ˜ข ALF
    Posted to BeoGram (Forum) by ALF on Tue, Feb 26 2019
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