Posts by Die_Bogener
1469 total posts1451 results
Beolab 8000 mk1 pcb question
in BeoLab · Oct 6, 2026 10:06Clean the copper tracks, remove carefully the green protection paint with a round knife and solder a thin wire on the copper track. That's all...
Beogram CDX Repair
in BeoGram · May 11, 2026 14:05Confirmed, the "rivet" connections between solder and component layer go bad. The upper side like on the fotos was looking very good, but on the underside were cracks in the solder. Some flux solved the problem. In my ca…
Penta MkII display issue
in BeoLab · Jan 16, 2025 15:00The orange display has a 7805 5V Power regulator chip, they become pretty hot for a long time. Check it, some of them are simply dead.
Beomaster 7000 no sound
in BeoMaster · Dec 28, 2024 08:35Is the display with the channel numbers ok? The MM5450 can cause this with bad communication with the cpu. I have seen several 8032 CPUs going defect... and lithium batteries/caps. And Eproms loosing their data.
Beomaster 6500 Powerlink nur linker Kanal
in Deutsche · Oct 2, 2024 09:41Dann bleibt nicht mehr viel übrig. Dann ist es eine Unterbrechung von Platine 7 nach 5... oder einer den 10nF Kondensatoren macht einen Kurzschluss.
Beolab Penta MK2 Amp Rebuild Question
in BeoLab · Sept 23, 2024 09:57It is not necessary to install all 6 output Transistors... 2 are enough for testing the amp. Or remove/disconnect 4 of the 0,47 Ohm resistors. The other 2 resistors can be replaced by cheap 100 Ohm for testing wether the…
Beomaster 6500 Powerlink nur linker Kanal
in Deutsche · Sept 23, 2024 09:26Mache einen kompletten Quertausch. Boxen - Kabel sowie die Powerlink Buchsen am Master. Wenn beide Powerlink Buchsen denselben Fehler aufweisen, ist es ein interner Schaden an der Elektronik des Vorverstärkers mit einer …
BeoVox Penta Center Channel Concept
in BeoVox · Aug 15, 2024 09:10What will be the rear side of the box? The original Penta has a separate "box" for the tweeter and the 4 midrange speakers. You measured the content with around 2 liter volume. But... the Penta is a big speaker, but the …
B&O Beomaster 5500, the volume is much lower
in BeoMaster · Aug 12, 2024 10:46DIN and RCA have different signal level. RCA ist around 0,7V... DIN much lower. Depending on year and manufacturer ~ 0,1-0,3 V.
beomaster 1000 ( type 2317 ) restoration & improvements?
in BeoMaster · Aug 10, 2024 12:14Some years ago i repaired a BM1000. There are lots of Roederstein capacitors inside, red plastic caps. They were 40-50 years ago pretty good, this time is gone. Most of them are either dead or they spread acid on the boa…
Beocord 5500 - Drawer falls out. No locking mechanism
in BeoCord · Aug 7, 2024 08:37There is a linear gear and inside is a sliding pin on the drawer. There you can use this silicon grease. The axle is not so good, since i have seen that the torque can open the axle and the axle becomes loose. And a loos…
Beocord 5500 - Drawer falls out. No locking mechanism
in BeoCord · Aug 2, 2024 13:54The gear box and the linear slide had a special silicon grease. This grease is very stiff and used as a damping stuff, making smooth and slow movements. The problem: after 30 years it can be like cement or glue. I'm used…
Beogram 7000 cd player stutters and skips through tracks
in BeoGram · Aug 1, 2024 18:10Hello Mathias, the CD5500-7000 has almost no problems with dust on the lense, just with cleaning attacks on the drive... The main problem are the 30-40 years of use für the capacitors on the drive controller. They need r…
Beocord 5500 - Drawer falls out. No locking mechanism
in BeoCord · Aug 1, 2024 18:05Hello Erik, the Beocord 5500-7000 has no lock system. This behaviour is quite normal, no defect. Martin
Beocenter 9500 geht immer aus
in Deutsche · Jul 15, 2024 10:26In dem silbernen Kasten ist die CPU. Dort ist eine Lithium Knopfzelle für den Datenspeicher verbaut. Die muss mindestens 3V haben, ansonsten wird das Verhalten merkwürdig. Im STK Endverstärker sind mehrere goldene Roeder…
Beolab, Beovox Pentas - Ein Lautsprecher für die Ewigkeit
in Deutsche · Jul 10, 2024 08:59Mit etwas Holzbeize wäre das kein Problem. Wobei ich nicht den Farbton Braun wählen würde, sondern vielleicht grau oder silber. Braun zu V2A passt eher mal weniger, der metallische Look der Pentas wäre mit grau/silber/an…
Beolab 7-2 distortion only on some soundtracks
in BeoLab · Jun 12, 2024 11:58I have something like that with HDMI and DVD Player Software. The sound is playing with 16-bit resolution. A loud section of the music/movie can use these 16-bit 100%. If you use a software, that is increasing this 16-bi…
BeoGram CD 5500 - power loss when not in service mode
in BeoGram · Jun 2, 2024 08:39The CD5500 has problems with the solder joints of the plugs and wires. Broken solder joints. 30-40 years of stress bending a plug are not good for tin and lead... If you move them, they can work for a while...
Beolab 4000 - Taugen die was? Vergleich mit Beolab 6000 etc..
in Deutsche · May 26, 2024 12:27Nein. Ein Sub hat mit Musik oder speziell HiFi nichts, aber auch garnichts zu tun. Nur mit Lärm bei einem Fernseher mit Rumm's und Schepper oder zum nerven der Nachbarn.
Beomaster 5500 speaker socket bad contact : known issue ?
in BeoMaster · May 24, 2024 12:31Very common is a corroded Mute relais. Replace it or clean it.