Cant make 7segment display run using 74LS47 IC

[chrisalviola]

would a 7 segment display show numbers if you only use a 74LS47 ic only?
i connected it all the pins right according to the schematics

the 7 segment display is connected right in pins 15-9 in 7447 ic and the pins 7,1,2 & 6 i used as 4 bit binary input, so when i input 0101 which is 5 no light come out from the 7 segment, is there anything wrong in my connections?

 

[Phrak]

They still make that IC? Do you need current limit resistors for that IC?
...

You need series resistors in each lead to the display. Maybe 330 ohms.

http://www.kpsec.freeuk.com/components/74series.htm#7447"

Tie the blank input (pin 5) high.

 

[oswaler]

There could be a few potential issues with your setup. First, make sure that the 7 segment display is properly connected to the 74LS47 IC and that all the pins are securely connected. Additionally, check the datasheet for the 74LS47 IC to ensure that you have the correct pinout and that you are using the correct voltage levels. It's also possible that there may be a problem with the binary inputs or with the power supply. Double check all of these components to make sure they are functioning properly. If you are still having trouble, it may be helpful to consult with a more experienced electronics engineer or refer to online resources for troubleshooting tips.