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Vectronics VEC-4001K User Manual

Page 13

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VEC-4001K Owner’s Manual

Professional Function Generator

13

! ! 47.#Find the .082

µ

F polyester ceramic capacitor (green, marked .082).

Install at C18 and solder.

The last group of 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 hole is marked 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. Most polarized caps you'll install are
aluminum-encased electrolytics. However, your kit also contains two
specialized 1

µ

F electrolytics called tantalum capacitors. These are small

bulbous parts with a tan-colored dipped-epoxy coating. Do not confuse these
with the 1

µ

F aluminum type electrolytic also supplied in the kit.

+

Tantalum Electrolytic

Aluminum Electrolytic

+

Find the two (2) 1

µ

F tantalum caps (marked 1

µ

D). Identify the longer plus

lead (marked +).

! ! 48.#Observing polarity, install a 1

µ

F tantalum cap at C21.

! ! 49.#Observing polarity, install a 1

µ

F tantalum cap at C24.

The remaining polarized caps are standard aluminum-case electrolytics.

! ! 50. Locate a 1

µ

F electrolytic. Observing polarity, install at C17 and

solder.

! ! 51. Locate a 10

µ

F electrolytic. Observing polarity, install at C16 and

solder.

Find five (5) 100

µ

F electrolytics. Observing polarity, install as follows:

! ! 52. Install a 100

µ

F at C7 and solder.

! ! 53. Install a 100

µ

F at C8 and solder.

! ! 54. Install a 100

µ

F at C11 and solder.

! ! 55. Install a 100

µ

F at C12 and solder.

! ! 56. Install a 100

µ

F at C15 and solder.

Find two (2) 2200

µ

F electrolytics. Observing polarity: