ASSEMBLING THE PCB. Your PCB has two sides, a COMPONENT side and a TRACK side. The view below shows the component side. ASSEMBLING THE PCB. First insert R1, the 330 ohm resistor. Note the colours, orange, orange, brown. ASSEMBLING THE PCB.
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Your PCB has two sides, a COMPONENT side and a TRACK side. The view below shows the component side.
First insert R1, the 330 ohm resistor.Note the colours, orange, orange, brown.
The next two resistors, R2 and R3 are both 4.7 Kohms.Colours: Yellow, purple, red.
Now insert the Zener diode. It is very important that it is inserted the correct way round. The band at the end is facing to the left.
Next insert the IC holder. It has a notch at the top denoting which end is the top.
There are two capacitors. They are both the same value, 2.2uF.They also must be inserted the correct way round. The stripe denotes the negative leg.
Finally for the component side, insert the buzzer. The positive connection is the longer leg and is at the top.
Now turn the PCB over to look at the COPPER TRACK side.
Add the LED. This can be any colour you choose. The longer leg is the positive connection and faces upwards next to the “+” sign.Don’t push the LED in too far, leave about 5-10mm gap from the PCB.