1. Plate derailment 2. Track deflection 3. Cardboard mat 4. Solder joint 5. Soldering of the track surface 6. Scratches on the green paint 7. Thickness of solder 8. Bright solder 9. Thin solder 10. Solder bumps 11. Solder powder and solder tails 12. Solder wire and thick solder 13. Solder bridge 14. IC lead ripple 15. Solder bar 16. Large solder surface with white spots 17. Vertical flow of solder thickness.