Nordictrack Commerical 1500 - Display Failure/Won't Turn On

ZS is a range of models, not a single model.

Many parts are obsolete, but some are. Looking at the unit though, the buttons under the LCD Display might just need cleaning. It does look easy though. To replace it, your would be looking at a new display module.

https://www.google.com/search?q=nordictrack+commercial+zs+treadmill+parts+list

Display image here.
https://nlbuysell.com/view/1680110

Button fix videos

https://www.google.com/search?q=nordictrack+commercial+zs+treadmill+display+button+not+working

..

https://www.manualslib.com/manual/583110/Nordictrack-Commerical-2450-Treadmill.html?page=27

Quoting from manual above (may be similar model if not the same.)

7. Turn on or turn off the display demo mode.
The console features a display demo mode,
designed to be used if the treadmill is displayed
in a store. While the demo mode is turned on, the
console will function normally when you plug in
the power cord, press the power switch into the
reset position, and insert the key into the console.
However, when you remove the key, the screen will
show a demo presentation.
To turn on or turn off the display demo mode, first
touch the Demo Mode button. Next, touch the On
checkbox or the Off checkbox.

new console needed.

re-install the operating system or restore from a set of back up discs you previously made from the laptop.

see the steps and fix it according. God bless you
Console 1

Remove the bolts or screws securing the console to the upright assembly. Lift the console and confirm that the cable connections are secure. Remove the cover from the console's battery bay and install a fresh set of batteries. Replace the battery cover.
2

Detach the ends of the pedals from the crank axles. Remove the left and right disc shields and side shields. Inspect the interior of the base unit and locate the flywheel.
3

Inspect the flywheel as it turns. Locate the magnet installed on the flywheel. Turn the flywheel until the magnet passes in front of the nearby reed switch. Loosen the screw securing the switch in place. Rotate the switch to reduce the gap between it and the magnet. Tighten the screw.
4

Replace the left and right disc shields and side shields. Reattach the ends of the pedals to the crank axles.

In normal operation you put in the key and display should light up. Also there is a reset switch on the frame near the power chord which might be off. Below is link to the User Manual for NordicTrack x7i. I got that info on pg 16.

http://www.sportsmith.net/images/product_support%5CNordicTrack%5C248194%20-%20NORDICTRACK%20INCLN%20TRAINER%20X7I%20INTERA%20TREADMILL%5CNTL20909.3-299073.pdf

I think you could have loaded the driver for a different model with 16:10 aspect ratio. Uninstall that driver.

Can you connect using the DVI port - get a DVI cable if your computer has a DVI port. If your computer has HDMI get a HDMI-DVI cable. DVI port will display max resolution - even without driver.

reinstall it. and check your drivers ..whether they are updated to latest version.

The way to tell if your NordicTrack digital console is bad is to troubleshoot it first. If nothing works, you've got a bad console. The digital console is an important part of exercising. A manual machine will still work even if the console doesn't, but an automated machine needs the console to work so you can adjust things like speed, resistance and incline. You also can't use programs or see your time, distance or estimated calories burned without a working console. The two most common reasons that a console will be dim, display bad results, or won't turn on are bad batteries and a problem with the reed switch.

1. Replace the Batteries
   • 1 Replace the batteries first, if your machine has batteries. A manual machine such as the NordicTrack MTN 740 will not need batteries, and instead the console is powered by your moving the steps. Check your manual if you are unsure of which batteries to buy. Different machines will require different batteries. The NordicTrack Mini Stepper uses watch batteries, but larger machines will likely need AA or D batteries.
     
   • 2 Take off the cover to the battery compartment. Remove and discard the old batteries. Replace all of the batteries, not just one if you happen to have one good one. Align them correctly with the "+" and "-" signs as shown on the compartment.
     
   • 3 Replace the battery cover and attempt to turn on the console.
     
   Reset the Circuit Breaker
   • 1 Check the circuit breaker. A machine such as the NordicTrack CXT 990 will have a circuit breaker located on the front of the machine. The console will not work if the circuit breaker is tripped.
     
   • 2 Push the circuit breaker in if it protrudes until it sticks.
     
   • 3 Try to turn on the console. Check the circuit breaker for your house if this does not fix the console problem.
     
   Adjust the Reed Switch
   • 1 Inspect the reed switch as the information on the display will not be true if the reed switch is too far from the flywheel on NordicTrack machines such as the MTN 740.
     
   • 2 Unscrew the two M10 by 82mm button bolts on the right pedal bracket. Unscrew the two M10 nylon locknuts. Pull off the pedal bracket and set aside.
     
   • 3 Remove the two M4 by 38mm screws. Remove the three M4 by 25mm screws. Slide the right side shield off to expose the flywheel, magnet reed switch.
     
   • 4 Unscrew the screw that holds the reed switch in place but do not remove it. Slide the reed switch toward the flywheel but leave enough space that the magnet can move freely. Replace the shield and bracket