Manual: elektrotanya.com/saba_freiburg…ereo_sm.pdf/download.html

No problem!

rt: rot, red
sw: schwarz, black
gn: grün, green
ge: gelb, yellow
br: braun, brown

Andreas

Dear tfgoh!

You used a link to google, something with registration.
It is not helpful, I can see no pictures without sign in.
Use here "Erweiterte Antwort" and "Dateianhänge" for pictures.

Andreas

The symbol for C131 stands for polarized "electrolytic capacitor".
The symbol for C128 stands for non-polarized "film (foil) capacitor".

Contrary to popular assumption, both sides (terminals) of a non-polarized film capacitor are not necessarily identical. Often, one side acts as a shield (= outer winding), the other side does not. That is reflected in the symbol of C128. In a high-impedance circuit periphery, the shield-side of the film capacitor is preferably connected to GND to minimize hum. High impedance wiring is particularly prone to pick up hum, unless shielded.

Just in the particular case of the example C128 the orientation of the foil capacitor is of less concern. But for other examples in the schematic it isn't. Watch out, the shielded side (outer winding) is connected to GND, whenever possible.

Often, the shielded side of film capacitors is marked by a solid line printed at the outside. Sometime there is no marking, then ihe shielded side can be determined with the help of an oscilloscope.






Beste Regards
Reinhard