Bad Solder Joint
Solder Mask
Bad Solder Joints
Measuring Continuity
Open
Short
Troubleshooting your board
Troubleshooting - discovering and eliminating the
cause of trouble in equipment
If your board is not working, possible troubleshooting techniques are:
• Immediately shut off power if you smell or see smoke
• Make sure there is power to your circuit
• Make sure your connections are correct
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Visual Inspection of board including solder joints, shorts, opens
Measure continuity
Be sure to have the correct orientation of components
Check to make sure schematic is correct
• Check to make sure connections on schematic match those on the layout
• Make sure components on in correct spot
• Make sure you bought the right components
• Check that components are good components
Possible Fixes to Problem Boards
Touch up solder joints by adding heat
Re-solder Components
Adding Jumper Wires
Cutting Copper Traces