Now move on to the protective fuses. They look quite similar to ceramic capacitors and are placed in the
blank rectangular markings on the board around the diodes.
Next place and solder the sockets. Make sure that the notch is in the
same direction
as printed on the
circuit board.
Then add the capacitors, there are eight 100n capacitors (marked 104) and four 10n (103). They might be
in ceramic or polyester film package, don’t worry they are not polarized.