Marto

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  • January 11, 2024 at 9:14 am in reply to: Beomaster 6500 & 7000 improvement of pre-amp circuit #28545
    Marto
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      Hello everyone,

      I am wondering if it’s going to have Part 2 or maybe more mods for this amp. I also want to thank you Die_Bogener for your advices and great work that you do for this community.

      Best Regards
      Martin

      November 23, 2023 at 1:48 pm in reply to: Beomaster 7000 getting hot in standby #26484
      Marto
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        Hi Die Bogener. I agree with You and I will find those on Wima, but can You please tell me where is this C22 on the power supply board? It was mention to be changed with other 3 caps – C8, C9 and C14.
        Thanks
        Martin

        November 23, 2023 at 11:16 am in reply to: Beomaster 7000 getting hot in standby #26477
        Marto
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          Thanks guys. I’ve change all the capacitors that You’ve mentioned and now everything seems to work like it should. There is more that i need help for:
          1. I can’t find capacitor C22 that everybody mentioned in the PowerSuply board. If somebody can help me find it out.
          2. I’ve bought 18 – 1uF 100V Nichikon Fine Gold capacitors for the Pre Amp board, but still considering changing of all Elnas and Rubycons on that board. What is Your opinion about that.
          Many Thanks once more.
          Martin

          November 16, 2023 at 9:36 pm in reply to: Beomaster 7000 getting hot in standby #26241
          Marto
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            I spend some time for observation and it was actually start to getting hot from the far right side of the cooling fin. The relay is working well for now without any suspicious. So maybe my problem is somewhere in these transistors in the end of the pcb.
            Any ideas?

            Thanks

            Martin

            November 16, 2023 at 10:58 am in reply to: Beomaster 7000 getting hot in standby #26208
            Marto
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              All the cooling fins are hot, maybe around 50 degree C. It’s like no matter is it ON or Standby, the temperature is the same.

              Martin

              November 16, 2023 at 6:14 am in reply to: Beomaster 7000 getting hot in standby #26199
              Marto
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                Thanks for this suggestion Martin. I can hear and see the relay clicks, anyway I resolder it, but still no luck with warming. I think that something else is the reason. The problem should be somewhere on the right side, around the big caps, but still can’t find it. Wondering what else stay on in the standby mode.
                Thanks

                Martin

                July 9, 2023 at 3:21 pm in reply to: Boelab Penta MK2 – amp strange behavior #22020
                Marto
                BRONZE Member
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                  P.S. I also found that when RCA was connect to Line-in socket and the amp is on OFF position, I still hear very very quiet music from the speaker. Is that normal?

                  July 9, 2023 at 3:15 pm in reply to: Boelab Penta MK2 – amp strange behavior #22019
                  Marto
                  BRONZE Member
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                    Hi and thanks for the suggestion, but today I’ve check all the connections and resolder them for any case and the main 2 problems stays:
                    1. The noise, even with no source cable inserted, which for me sounds like a buzzing.
                    2. Not goes to stand by mode.
                    Please, if You have any other things in mind to give an idea where to search.
                    Best regards,
                    Martin

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