Typically, a doorbell is nothing more than a simple chime driven off of the mains power. The button (outside) closes the circuit (when pushed) and causes the chime to sound. I would do the following 1. Verify that the doorbell has power (from mains source) 2. Find the terminal connections to the button (the outside button) A. complete the circuit, if

I use an Apple Airport Express. I have one per receiver (B&O and non-B&O). The Airport plugs into the AUX socket. This allows me to stream music directly from iTunes (we have one computer that acts as a central iTunes library) to any or all of the systems. My wife is able to control the music selection from her iPhone. If you set the volume

Electrolytic Capacitors tend to leak or dry up over time, so replacing old ones is a good idea. The ceramic capacitors (small orange discs) very rarely fail and should only be replaced if it is determined that they are faulty. I would not change the wire, unless it is damaged (but maybe I am just lazy). Good Luck! -Rob

I wouldn't think so... That could be an issue with the power supply itself. Try disconnecting the CD rom and floppy drive - the goal being to reduce the overall wattage consumption. I'd start by removing everything from the board except the video, cpu and ram. Go through the manual and confirm that the jumpers, plugs, etc... are all correct

Page 2-7 of the manual has the audio codes. The closest one to what you describe is: "Long beeps in an endless loop" = "No DRAM installed or detected" 450W should be plenty, especially if the HD isn't attached. You mentioned that you tried 2 separate video cards, so unless they are both bad, I am guessing that the issue occurs

Is there a speaker connected to the main board? Most boards offer an audible indicator for startup issues. I would verify that the RAM is seated properly, and in the proper location. Some boards require that RAM be "paired" - check the documentation with the mother board. You may also want to confirm that the wattage rating of your power supply

In "Christmas Vacation" it was a BeoMaster 4500 system that was destroyed, I cried. -Rob

Glad to here that you have found the issue. Good luck with the repair! -Rob

Yep, I replaced the rectifier too - forgot to mention that. Thanks Martin! -Rob

I had the same symptom with a BM6500. Of course, that doesn't mean it was the same problem . For me, it was the vertical silver can-type capacitor near the fuse. (On page 10 of the service manual you'll find this to the right on the rectifier D3). Page 19, lists it as a 4700uF -10 + 50% 16V Cap. However, as it's an older receiver and that