Section Two
Trouble Shooting
Chapter I
Electronic Control Theory
First of all, let’s get a simple knowledge of electronic control theory, so that to seize the
key points of problems quickly and deal with problems more efficiently. An electronic
schematic diagram as following (this is a typical schematic diagram, for special machine ,
please note the circuit diagram attached to the machine ):
From above circuit diagram we can see that the whole diagram is divided into two parts: