Galak Electronics VG-212 Manual - Page 5

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Populating the PC board

Make sure to properly identify each of the components,

locating them on the layout and on the parts list

included in these instructions. Do not remove the LEDs

from their individual packets until you are ready to

mount them, as they are color-coded.

To simplify the process of populating the PCB, we highly

recommend mounting the LEDs first. The LEDs are not

labeled on the board, so follow the pattern to the right.

Note that all the LEDs are oriented with the cathode to

the right, meaning the shorter lead on each LED goes

to the right.

LED1 is mounted at the very top of the board to

illuminate the ball on his cap. The rest of the LEDs can

be mounted however you like, but we recommend using

the pattern to the left for the best results.

Once you have

all of the LEDs

soldered and

trimmed, flip the

board over and

start populating the board with the lower profile

components. In this case, they will be the resistors

R2-R9. Next, mount C2 and C3.

Now, mount the socket for IC2, orienting the arc to

align with the arc on the silkscreen. Now, you can

mount PB1 and C1. Note the orientation for C1. The

positive lead is the longer lead and should match up

with the "+" on the PC board.

Finally, mount SPK1 and battery holder BAT1 again

noting the orientation of each device. SPK1 is marked

on the bottom with a "+" symbol.

You are now ready to insert IC2 into the socket. Use

caution when handling the IC, as it is static sensitive.

Orient IC2 such that the arc on the IC aligns with the

arc on the socket and carefully press the IC into place.

Do not force it as you can bend the pins. If necessary,

bend the leads inward by holding the IC at each end

and gently pressing the pins against a flat surface.