000 to 999 counter Circuit LCD Not working Help

[ddddddd1232]

I am trying to outline the design for my project for my circuits class I am pretty new to Multisim, but I have tried everything to get the 7 segment 4 digit LCD and or 3 7 segment Hex to display properly I am not sure if its something wrong with my circuit orthe software. I hooked a logic analyzer to the outputs of the counter 4516B IC so I know that it is counting. There must be a error in the way I am connecting my driver 4543s Please help so that I can begin physically building this circuit and wire wrap.

Thanks in advance.

[ddddddd1232]

working logic analyzer

[Branch_Support-NIC]

Have a look at the attached file; I've isolated the two parts you mentioned so that you can see how they work. Press the key A, B, C and D on you keyboard to control the inputs DA to DD and you can see the results on the 7 segment display.

U17, I've turned on the symbol pin name so that you can see which pin is which. A1 to G1 are part of the first 7 segment LED.

Here is a datasheet for the 4543:

http://www.nxp.com/documents/data_sheet/HEF4543B.pdf

I hope this helps.

Tien