Vectronics VEC-1604K - Manual (Page 10)

VEC-1604K Owner's Manual Portable CD Amplifier Kit
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force to seat a multilayer capacitor into the PC board. If the spacing isn't right,
pre-form the leads to the correct spacing before installation!
Find two (2) .0068 uF multilayer capacitors (marked 682).
! ! 15. Install a .0068 uF capacitor at C1 and solder.
! ! 16. Install a .0068 uF capacitor at C3 and solder.
Find two (2) .047 uF multilayer capacitors (marked 473).
! ! 17. Install a .047 uF capacitor at C2 and solder.
! ! 18. Install a .047 uF capacitor at C4 and solder.
Find two (2) .33 uF multilayer capacitors (marked 334).
! ! 19. Install a .33 uF capacitor at C5 and solder.
! ! 20. Install a .33 uF capacitor at C6 and solder.
This completes installation of the 6 multilayer caps.
The last (4) capacitors in your kit are electrolytic. Electrolytic caps are
polarized and must be installed the correct way in order to work. Each
capacitor's plus (+) mounting holes are noted on both the circuit board and parts
placement diagram. If the markings on the capacitor body are unclear, the plus
(+) lead is always the longer of the two.
Find two (2) 10 uF electrolytic capacitors. Identify the (+) lead on each.
! ! 21. Install a 10 uF capacitor at C9 and solder.
! ! 22. Install a 10 uF capacitor at C10 and solder.
Find two (2) 470 uF electrolytic capacitors. Identify the (+) lead on each.
! ! 23. Install a 470 uF capacitor at C11 and solder.
! ! 24. Install a 470 uF capacitor at C12 and solder.
This completes installation of all capacitors. Before moving on to the next phase
of construction, check the polarity of each electrolytic one more time to confirm
all four are installed correctly.
The front-panel controls (volume & tone) are mounted next. Before installing
these parts, inspect the type of potentiometer supplied with your kit. If the pins
are located on the front side of the pot, use the front set of mounting holes on the
PC board for installation. If the pins are on the rear, use the rear set of
mounting holes (see the following diagram). Also, using side cutters, remove the
key tab from the side of each pot prior to installation.