Hi,
The LT1021 is a voltage reference NOT a power supply regulator, it is only rated to 10mA output current.
Have you a DMM to measure the 5V supply to the UNO and 2414?
I don't think you can leave pin19 on the 2414 open circuit?
What is your 9V power supply?
Thanks.. Tom... 
241418fb.pdf (871 KB)