By " start " pushbutton, this machine is not started A, CJ4 is not sucked close
① inputs 0 lines to was not received good;
② CJ5 often closes contact the contact is undesirable;
③ CJ1 is auxiliary often close contact undesirable;
④ CJ3 is auxiliary often close contact undesirable; B, CJ4 is sucked close, CJ2 is not sucked close
① CJ4 often opens contact undesirable;
Open a way of ② CJ2 coil;
③ CJ5 often closes contact the contact is undesirable;
④ CJ1 is auxiliary often shut undesirable. C, CJ4 is sucked close, CJ2 is sucked close, CJ3 is not sucked close
① CJ4 often closes contact undesirable;
Open a way of ② CJ3 coil; Be in automatic when, output voltage lifts continuously, till spacing switch movement
① controls circuit board bad;
② sampling transformer is bad;
③ outputs voltage adjustment potentiometer bad.
When the hand is moved, have step up, without step-down, or have step-down, without step up
① hand uses automatic transfer switch bad;
② journey switch is undesirable;
③ relay is bad.
Breakdown light is bright, this machine cannot be started
Sequence of appearance of A of ① input line, B, C incorrect or input electrified wire netting is short of;
Baffle of ② appearance sequence is bad;
③ presses relay too bad.