MagicBox V1R2B Assembly Manual - page 7
[ ] Install the 1K trimmer resistor (blue potentiometer) at R32.
Your PCB should now look like this:
Capacitors
[ ] Install 0.02 uF (green color - marked 2A203K) at C19, C20 and C21.
[ ] Install 0.1 uF (tan color - marked 104) capacitors at C1, C5, C6, C7, C8, C9, C10, C11 and C12.
[ ] Install 2.2 uF (black color - marked 2u2) capacitors at C13, C22, C24 and C27. Note the + polarity
marking on these capacitors; they need to be installed with this + matching the + on the PCB.
[ ] Install 22 uF (black color - marked 22uF) capacitors at C2, C3, C4, C17 and C28. Note the +
polarity marking on these capacitors; they need to be installed with this + matching the + on the PCB.
[ ] Install 33 uF (black color - marked 33uF, 6.3v, non-polar) capacitors at C25 and C26.
[ ] Install 47 uF (black color - marked 47uF, 6.3v, non-polar) capacitors at C15, C16 and C23.
[ ] Capacitors for locations C14 and C18 are not needed nor provided.
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