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Friday, May 22, 2015

Beogram 4000: Adjusting the Platter and the Chassis

After performing all necessary restoration tasks on the Beogram 4000 that I restored during the last few weeks, I put the aluminum panels back on. I quickly realized that the platter was not flush nor centered relative to the surrounding aluminum panel. This meant I needed to adjust the chassis and platter positions. The service manual prescribes to adjust the platter first relative to the chassis, and then adjust the chassis poison relative to the enclosure, i.e. the aluminum platter surrounding the platter to create a situation where the platter is flush with the panel and also centered in the opening. In other words the task was to achieve a Beoloving situation where the Beogram looked just perfect!

I made two short videos describing the the process. Here is the first one, that describes how to adjust the platter relative to the chassis:

After the platter is adjusted the chassis can be aligned. This procedure is shown in the second video:

Well, this pretty much concludes the restoration process. I am almost sad, since I really got used to this most beautiful piece of engineering, and I will have a hard time to let this Beogram 4000 go back to its owner! I am grateful to Jacob Jensen for coming up with such wonderful designs. They enrich my life and they also got me turned on to electronics. It has been a wonderful experience the last few years! Of course I never met him, but it feels like I just lost a friend! Rest In Peace! It is Beolove!

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