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Connect the board to your power supply again and repeat the current test. It should still be about 6mA. Check the voltage across the two diodes marked here: It should be about 2.5V, if not check for shorted tracks and solder bridges around the transistors. http://www.lasermad.com/instructions/DSCF52...

Repeat the powerup test you made earlier, the readings should be the same If not check for solder bridges. Take 1 Microcontroller from the component pile: http://www.lasermad.com/instructions/DSCF5208%20pic.jpg Fit it in the location marked here: Make sure the dot marking pin 1 is in the right place...

Take 16 2N7000 transistors from the component pile: http://www.lasermad.com/instructions/DSCF5215%20mosfet.jpg Bend the legs 90 degrees and fit them in the locations marked here: Make sure they face downwards and point in the direction shown. http://www.lasermad.com/instructions/DSCF5219mosfet.jpg h...

Cut 5 short pieces of wire for links. You could use the enamelled winding wire or strip the insulation from some single cored copper wire, anything up to about 0.75mm. or buy some brass or gold plated copper wire. I tried that on this board but think it looks overdone. Fit them in the locations mark...

Take 16 10n capacitors from the component pile:



Fit them in the locations marked here:





Solder in place etc....

Take 21 3n3 capacitors from the component pile:



Fit them in the locations marked here:





Solder in place etc....

Take 11 33u capacitors from the component pile: http://www.lasermad.com/instructions/DSCF5215%2033u.jpg Fit them in the locations marked here: Again these are polarised so make sure the white band is facing in the same direction as marked in the photograph. http://www.lasermad.com/instructions/DSCF5...

Take 8 6R8 resistors from the component pile:



Fit them in the locations marked here:





Solder in place etc....

Connect the board as indicated to a 12V power supply through a mA meter and switch on. The current should be around 4-6mA, if not check for solder bridges or track shorts. If the current is OK, check the voltage across the marked diode. It should be about 5V, if it's 12V you have probably mixed the ...

Take 2 14V zener diodes from the component pile: http://www.lasermad.com/instructions/DSCF5208%2014v.jpg Fit them in the locations marked here: Make sure the band is facing in the same direction as shown. There is a drilling error in one place so you'll have to carefully solder the diode under the P...