Following a slight weather-induced pause, it’s time to resume the Beomaster 1900 restoration.
The Beomaster has been functioning well in the workshop for over a week. It’s now safe to reassemble the casing and begin performance testing.
Before I can replace the touch button control and the tone/FM tuning panels, the three display masks for Bass, Treble, and Balance need to be reconnected.
Reinstalling the touch button control panel requires precision. Each touch button post on the main PCB corresponds to a copper activator with a notch that must be aligned. Occasionally, aligning these notches is challenging.
However, this time the alignment was effortless, with the notches fitting perfectly onto the posts without the need for any tools.
This image highlights two of the copper activators.
When reinstalling the tone control and FM tuning panel, it’s essential to ensure the slider control buttons align with their corresponding sliders. To facilitate this, I position all three slider controls at their lowest point before attaching the panel.
I also apply a small amount of Nyogel damping grease to the hinges of the tone control and FM tuning panel before installation.
The photo above showcases the refreshed appearance of the Beomaster 1900’s wood trim, achieved through light sanding, cleaning, and the application of boiled linseed oil.
Tomorrow, I will connect the Beomaster 1900 to dummy speaker loads for audio measurements.





