Ramsey Electronics FZ-146 Manual de instrucciones descargar pdf (Pagina 10)

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at the rear of the board. Before soldering, make certain that it is seated

squarely on the board and the pins are protruding thru the board.

[ ] 1b. Solder all J1 connections, including a generous flow of solder to

secure the outer mechanical mounting pins.

[ ] 2a. Similarly, study the design of J2, the 5-pin DIN jack, which may have

either 5 or 7 pins to solder. Before soldering, make very sure that it is

pressed securely and squarely into the board as far as it can go.

[ ] 2b. Install J2 as per 2a.

[ ] 3. Near J2, install C3, .001 uf (marked .001 or 102).

[ ] 4. Install C15, .001 uf.

[ ] 5. Install C8, .001 uf.

[ ] 6. Install R5, 4.7K [yellow-purple-red].

[ ] 7. Install R15, 100 ohms [brown-black-brown].

NOTE: Save some of the longer wire scraps nipped from resistors and

capacitors. These will be used to form wire jumpers (JMP 1, etc) to be

soldered in just like parts during these construction steps.

[ ] 8. Transistor Q1, NPN type 2N3904 or similar, must be installed with the

flat side facing C3 as clearly shown on the PC board illustration. Press it in

as far as it will reasonably go and solder.

[ ] 9. Install C17, .001 uf (marked .001 or 102).

CONSTRUCTION NOTE 1: The kit uses 5 diodes; each MUST be installed

with the dark banded (cathode) end pointed as shown on the PC board

illustration.

[ ] 10. Install D4 near C17.

CONSTRUCTION NOTE 2: Just as for diodes, electrolytic capacitors MUST

be installed with correct polarity. The (+) side is clearly marked for each

electrolytic on the PC board illustration.

[ ] 11. Install C14, 4.7 or 10 uf.

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Ramsey Electronics FZ-146 Manual de instrucciones Pagina 10