This book covers general theory and detailed troubleshooting information, along with an extensive fault diagnosis quick index and explanations applicable to all sewing machines, from the newest to the oldest. Uses a common-sense approach to any electrical, electronic, and mechanical sewing machine fault using a common sense and logical, or probability-based investigation to observe and correctly identify the failure or failures. This is no different from the Detective Books you read or TV Shows you watch where the hero used a logical approach (while all those around him just ran around willy nilly) to identify the clues and catch the bad guy. Companion to my book ÔBasic Electrical Troubleshooting for EveryoneÕ. More at www.DarrelKaiserBooks.com