Posts by Marto
22 total posts17 results
Beomaster 7000 with Penta buzzing noise
in General Discussion & Questions · Oct 2, 2025 15:16Thanks for guidance to this diodes. On Beomaster 7000 it's 9C20 - 10uf capacitor on the same position like your 5C110. In service manual for 7000 this capacitor is grounded to "signal ground" and maybe this is the case h…
Beomaster 7000 with Penta buzzing noise
in General Discussion & Questions · Oct 1, 2025 18:00Yes it is absolutely the same buzzing, like You describe it. I also think it’s something with information needed for the display, because when I click on for example volume up first hear a “buzzz”, after a second or two …
Beomaster 7000 with Penta buzzing noise
in General Discussion & Questions · Sept 30, 2025 20:08Hello everyone , I'm looking for help with a case that I've been struggling with for a long time. I have a Beomaster 7000 and a Beolab Penta. Everything has replaced capacitors, as well as some other elements such as ope…
Beosound Ouverture - CD with strange behaviour
in General Discussion & Questions · Mar 24, 2025 19:19<p style="padding-left: 40px;">I read all the threads in this forum and many others 😁. Maybe I have a progress today. I read a thread for CDM12 lasers and found that laser diode can be partially detached and clean. When…
Beosound Ouverture - CD with strange behaviour
in General Discussion & Questions · Mar 24, 2025 06:17Thanks for the reply Guy, but unfortunately mine is with CDM12 ( new version) and I don’t have pcb 8. I have pcb89, which is on the place of pcb8, but very different schematic. I have all of the service manuals. On that …
Beosound Ouverture - CD with strange behaviour
in General Discussion & Questions · Mar 23, 2025 16:47Hello to everyone. Recently I bought a second hand Beosound Ouverture with problem with the CD. The version is with CDM12 mechanism. When the disc is inserted it starts spinning without stopping, but on the display stay …
Beolab 150 VS Beomaster 7000 for Penta
in General Discussion & Questions · Jun 19, 2024 10:35Hello people, I would like your opinion on which would sound better. I have Beolab Penta mk2 speakers which I have serviced and improved with information from this forum. I also have a Beomaster 7000 which I have also se…
Beomaster 6500 & 7000 improvement of pre-amp circuit
in BeoMaster · Jan 11, 2024 09:14Hello 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
Beomaster 7000 getting hot in standby
in BeoMaster · Nov 23, 2023 13:48Hi 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
Beomaster 7000 getting hot in standby
in BeoMaster · Nov 23, 2023 11:16Thanks 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 PowerSu…
Beomaster 7000 getting hot in standby
in BeoMaster · Nov 16, 2023 21:36I 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 t…
Beomaster 7000 getting hot in standby
in BeoMaster · Nov 16, 2023 10:58All 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
Beomaster 7000 getting hot in standby
in BeoMaster · Nov 16, 2023 06:14Thanks 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, …
Beomaster 7000 getting hot in standby
in BeoMaster · Nov 15, 2023 05:09Hi all, few days ago I bought a set of Beomaster 7000 with Beogram CD 7000. The cd needs the usual caps and now working flawlessly. I read here the mod for preamp on BM ( removing of some ceramic caps) and desolder them.…
Boelab Penta MK2 - amp strange behavior
in BeoLab · Jul 9, 2023 15:21P.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?
Boelab Penta MK2 - amp strange behavior
in BeoLab · Jul 9, 2023 15:15Hi 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 buzzin…
Boelab Penta MK2 - amp strange behavior
in BeoLab · Jul 8, 2023 05:58Hello guys, I have bought a set of Beolab Penta's MKII with some defects. Of course mids were rotten (already fixed), one of the amps totally no sign of working when put in power plug. That one was with blown fuse 40mA a…