BeoLink 7000 · Open source part
The top plate on the BeoLink 7000 is almost always scratched or dented. I replace it with a new plate in mirror polished stainless steel.
After restoring quite a few BeoLink 7000s, I've found that the top plate (9001) is almost always scratched or dented. It's the first part you see and touch, so it's also the first to show its age. On this unit, a previous owner had fitted the battery with the wrong screws, which pushed up from behind and dented the plate.
The original plate is anodised aluminium. I couldn't find anyone to make it in aluminium at the original thickness, so the first run is stainless steel, mirror polished to match. Stainless steel is about three times as stiff as aluminium, so it resists dents far better, and side by side the difference in tone is small. I'm still looking for a supplier who can make it in anodised aluminium.
The plate is held with double sided tape from the factory, so the old one comes off slowly from one corner. I clean away the old adhesive and lay fresh tape.
A 3D printed bracket I designed puts the piezo element, which wakes the remote when you tap the plate, in the same position every time. A second 3D printed jig places the new plate exactly where the original sat.
With the piezo wires soldered back on, tap to wake works again. While it's open, I also clean the old grease off the plastic strips (9019).
The Bang & Olufsen logo is still missing. I haven't yet found anyone who can laser engrave stainless steel to the original standard.
The top plate and piezo element are listed under parts.
Replacement top plate (#9001) for the BeoLink 7000, made from mirror-polished stainless steel to match the original finish. Stainless steel is much stiffer than the original anodised aluminium, so it resists dents better. It is fitted with double-sided tape, with a 3D-printed bracket for the piezo element and a jig for alignment. It does not have the Bang & Olufsen logo.
More work
Backlight
A weak or dead backlight is the most common fault on the BeoLink 7000. The EL foil behind the display wears out, and I replace it with a new one.
Replacing the batteries in the BeoLink 7000
The BeoLink 7000 has two batteries, the main battery and a lithium coin cell that keeps its settings. Both are long past their life, so I replace both.
Cleaning and lubricating the BeoLink 7000
The display lift in the BeoLink 7000 runs on a small belt, gears and a guide rail. I clean and relubricate the mechanism, fit a new belt and replace the capacitors and fuse on PCB01.
Testing the BeoLink 7000
The BeoLink 7000 has a built in test program. I use it at the end of a restoration to check the keys, the display and the memory.
Regluing the glass front on the BeoLink 7000
Now and then the adhesive between the glass front and its plastic frame starts to let go on a BeoLink 7000. As long as it hasn't come off completely, a syringe of thin superglue fixes it.
Piezo element
Tapping the top plate wakes the BeoLink 7000, thanks to a small piezo element underneath. When that stops working, the piezo has usually failed with age, and I replace it.
When a new backlight foil doesn't fix a BeoLink 7000
A BeoLink 7000 still had no backlight after I fitted a new EL foil. The cause turned out to be a failed transistor in the backlight oscillator.
Tell me about your BeoLink 7000 and I'll get back to you.
