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| STEP 1: Design the schematic diagram. |
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| STEP 2: Print to OHP paper. |
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| STEP 3: The circuit schematic at PCB board. |
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| STEP 4: Repair the line that not connect. |
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| STEP 5: Use acid to get the circuit schematic at PCB board. |
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| STEP 6: Clean the board and use the sandpaper. |
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| STEP 7: Drill the PCB board. |
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| STEP 8: Solder the component. |
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| STEP 9: Solder finish. |
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| STEP 10: Test the connection by using multimeter. |
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| STEP 11: The circuit design already finish. |
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