IMG
I get a test for R.P.M. Meter & four display 7 segment on circuit test panel.
It can't work, I am checking for so many times,
it haven't get any mistakes on connect segment.
No fan speed it only indicate four cero ( 0000 ) after electricity test.
P.S. On circuit web site IC 74C925,
it is very old no stock on market, therefore change to IC 74C926.
I follow the datasheet change the Pin for IC 74C926.
N1 / N2 I use IC 74LS14, can you provide the circuit to me.
I give a E-mail to circuit wet site station reply me no problem occur.
Please help me to solve this problem !!!
Looking forward to hearing from you
I get a test for R.P.M. Meter & four display 7 segment on circuit test panel.
It can't work, I am checking for so many times,
it haven't get any mistakes on connect segment.
No fan speed it only indicate four cero ( 0000 ) after electricity test.
P.S. On circuit web site IC 74C925,
it is very old no stock on market, therefore change to IC 74C926.
I follow the datasheet change the Pin for IC 74C926.
N1 / N2 I use IC 74LS14, can you provide the circuit to me.
I give a E-mail to circuit wet site station reply me no problem occur.
Please help me to solve this problem !!!
Looking forward to hearing from you