It is very important for a repairer to be very observant because many atimes the major causes of failure in most of electronics board is dry solder joints.Before and after repairing a board,I will advise you check it very well to make sure all dry joints are resoldered and avoid hurriedly assembling the set as this may give you another problem thereby compounding your work.A good repairer must have a good eye.
Dry Solder Joints
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