BeoLink 7000
Bringing back the shine: Replacing the top-plate on the BeoLink 7000
After restoring quite a few Beolink 7000 units over the years, I’ve noticed a recurring issue. The top plate (#9001) is almost always scratched or dented. It’s the first thing you see and touch, and unfortunately, it's the first part to show its age.
Securing the glass front of the BeoLink 7000
There are instances where the adhesive securing the plastic frame to the glass front begins to fail. If the adhesive has not completely detached, it can be repaired using super glue and a syringe.
Replacing the piezoelectric element on a BL7000
An excellent feature of the BeoLink 7000 is that tapping the top plate (#9001) awakens the device. However, this feature can sometimes fail due to the natural degradation of the piezoelectric element responsible for detecting the tap.
Cleaning and lubricating the BeoLink 7000
Even though the manual states that the need for lubrication is negligible, it is always best practice to clean and lubricate the mechanical components to reduce wear and tear. Lubrication allows the parts to remain in an optimal operational state for an extended period. Since I encountered issues with a Beolink 7000 where the panel remained stationary despite the motor (9017) running, I decided to investigate it. This post mainly focuses on the mentioned problems but will also cover which passive components to replace on PCB01.
Troubleshooting a Beolink 7000 with faulty backlight
I encountered another Beolink 7000 with the typical backlight failure, necessitating the replacement of the electroluminescent (EL) foil. However, this replacement did not resolve the issue. Subsequent measurement of the AC voltage supplied to the...
Testing the BeoLink 7000
After replacing the backlight and restoring the BeoLink 7000 it is important to verify that the remote works as expected. Funny enough B&O has made this possible in a rather funny but easy way. By adding a 10Hz signal with a maximum amplitude of 5V...
Replacing the CMOS battery on the BeoLink 7000
An essential part of the restoration process of the BeoLink 7000 is to replace the CMOS battery. The CMOS battery ensures that the processor preserves its configuration, should the main battery run out of power.
Replacing the backlight on a BeoLink 7000
A common issue on the BeoLink 7000 is weak or absent backlight as seen in the picture below.The backlight in the BeoLink display comes from a white Electroluminescent Backlight Foil (EL Foil) that is placed behind a blue-transparent LCD. It has a typical...