First check if VNC Service & SSH service is active.
With the eX703’s ETH1 connected to your PC’s ethernet port,
Go to https://Your-IP-Here/machine_config
Your-IP-Here, will need to be switched for the IP of your eX703 like this (https://192.168.10.128/machine_config)
When you get to this page:
Username: admin
Password: admin
When logged in, go to Services and make sure SSH and VNC are enabled, and Fast boot it turned off.
Use a VNC viewer to connect to the unit. (There are free versions on the internet)
When you get to this screen:
long press the green arrow for Ca. 5 sec, do not let go before the screen changes to this one: 
Press the settings button and select the 3 settings for logging like this :
You should now see the log window:
