HI all.
I have a stepper (from old floppy drive) 12 V on my telescope. The fast forward no longer responds. The stepper turns at 100 revs a min. with good torque. fast forward should be 200 revs. I have spend hours looking and probing at the connections, Every thing looks OK. Should I replace the relevant IC's or could the problem be with the transistors. I have no one to ask for assistance. Another stepper behaves in a similar manner. When pressing the fast forward button on the hand-controller the stepper sounds as though it tries to speed up.
I know it is a difficult question for me to ask of you. Any ideas, or guidance please.
I have attached an image of the controller box. It has a lot of (funny) things inside it.
I use a volt meter to test resistance and voltage. Just basic stuff.
Yours sincerely
Ken
I have a stepper (from old floppy drive) 12 V on my telescope. The fast forward no longer responds. The stepper turns at 100 revs a min. with good torque. fast forward should be 200 revs. I have spend hours looking and probing at the connections, Every thing looks OK. Should I replace the relevant IC's or could the problem be with the transistors. I have no one to ask for assistance. Another stepper behaves in a similar manner. When pressing the fast forward button on the hand-controller the stepper sounds as though it tries to speed up.
I know it is a difficult question for me to ask of you. Any ideas, or guidance please.
I have attached an image of the controller box. It has a lot of (funny) things inside it.
I use a volt meter to test resistance and voltage. Just basic stuff.
Yours sincerely
Ken
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