Re: How do I test IC SN74LS541N on PCB?

The IC's are soldered in and I could plug the card in for testing but
it would be very time consuming to get at all the chips.
I am confident I can unsolder and solder in new chips, I have done
this before but I figured the less I solder the less chance of
damaging someting
I have a very basic knowledge of electronic and when I looked at the
datasheet on this chip I was lost.
I thought one could bench test each chip one at a time by supplying
the proper voltage 5 vdc and ground to the chip, supply the gate with
high or low current then input 5 vdc to each input and checking the
output to see if it is high or low depending one how the gate is set.
Sounds like I was wrong on this part, but if it could be done, would
supplying 5 vdc to the gate make it high and supplying nothing make it
low? Would I supply the input with 5 vdc or nothing and check the
output for high or low compared to what the gate is set for.
Would I fry the chip if I put 5 vdc to the input, maybe I need to use
a pulser, I have one although I am not positive how it works.
The machine the board it out of is for hobby use so I have nothing to
lose by trying to fix it myself.
Clear as mud?