Galak Electronics VG-211 매뉴얼 - 페이지 5

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Populating the PC board

Make

sure

properly

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. With the exception of LED1 and LED2 all the

LEDs are oriented with the cathode to the right,

meaning the shorter lead on each LED goes to the

right.

LED1 and LED2 are used create the arms. The shorter

leads go toward the top of the board. The rest of the

LEDs can be mounted however you like, but we

recommend using the pattern to the left for the best

results.

identify

each

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.

the