Hi,

Similar to the Beomaster 8000 the Beomaster 6000 Type 225x you have is controlled by a microcomputer integrated circuit. Various things can cause the microcomputer to start failing in functionality. The age of the receiver is such that it most likely needs to have electrolytic capacitors replaced (recapping). I would check that the Beomaster power supply voltages are correct. Especially to the microcomputer board. I think it is unlikely that the microcomputer IC is bad. They are pretty durable. It could also be as simple as a connection problem so check board connections.  I would caution against opening it up and poking around though...unless you are handy with things like working on electronic devices (and have the service manual).

-sonavor

Hi 

Have you found a solution to the problem?

I have exactly the same problem with my BeoMaster 6000 :(

Check the reset circuitry and reset potentiometer 2R89 and replace it if necessary. Then perform the adjustments as per the service manual. Please note that the adjustments are very sensitive!

Hi

At first as sonavor wrote check the voltages comming from board 16 POWER SUPPLY

P41 - 1       6,5 Volt

P42 - 5+6    15 Volt

uPC Board 2  P2 - 3    5 Volt

The 2 big caps on the power supply board 16 here C10 2200uF and C1 3300 uF often dead or far from values.

Watch out for the 3 solderpoints from the old caps ( ground ) on the solder side all have to be connected again.

Kind regards

Christian