enter image description hereI am restoring my Sansui AU 6600 Amplifier. I have taken out all old electrolytic capacitors, and my question is. From the part list for F 2092 capacitors C05 and C06 (10 μF) are listed as BP capacitors and looking at the board diagram I can see that the two capacitor do not have the plus sign, and that is ok. But what I do not understand is that in the schematics, capacitors C15 and C16 (3.3 μF) do not have a plus sign, but in the part list these two are not listed as bipolar capacitors.
Could you please clarify?