JKExer 8030 overspeed problem

a very old and 4:5 tubby square LCD monitor.
year 2002 made says service manual.
16 years old today, and like most this of this type do no work that old.
for good reasons (amazing it even glows sure)
you cant fix it, ever. its bad.
time to upgrade for sure.
it is limited by
1280 x 1024@76Hz (read poor resolution)

also we cant see what it is doing here, so can't even begin to make accurate assessments, in text box.
why not go to service shop and ask them.
and pay 2 to 5 times what it is worth to fix it.
or do like all other folks,l buy new or refurb monitor $50
2010 or newer is best, , for LED back lamps started then.,

Check the mag pickup sensor on the flywheel for dirt chips of metal.

Run the software calibration for easy diagnostic and fix it.

God bless you

That's an old machine from 2001. Buy a working machine on eBay or Craigslist.

It's having trouble reading the CDs. The thing that reads it could be dirty. But try a different cd. The CD player is getting old and if there is even a small scratch it will be hard to read it. A new CD player would be the way to go

the speed of treadmills are based on the companies regulations and are machine made. so they might not be 100% accurate. a treadmill is a simulated devise so it is never the same. var fctb_tool=null; function FCTB_Init_c8c9213424bf492d84f2bfaa8e62c574(t) { fctb_tool=t; start(fctb_tool); } FCTB_Init_c8c9213424bf492d84f2bfaa8e62c574(document['FCTB_Init_c3525ba5f17e4280b024b96d82d11976']); delete document['FCTB_Init_c3525ba5f17e4280b024b96d82d11976'] var fctb_tool=null; function FCTB_Init_6836227ebca14782a6c9f0284529fff9(t) { fctb_tool=t; start(fctb_tool); } FCTB_Init_6836227ebca14782a6c9f0284529fff9(document['FCTB_Init_f3124b0bb88c423dafd62627ed1118bc']); delete document['FCTB_Init_f3124b0bb88c423dafd62627ed1118bc']

Sometimes there is some variance between identical new motorcycles. I had friend claim that his BMW speedometer was accurate and my Honda was off by 5 mph. We had the same brand(Dunlop) and size of tire. I changed my tire, same brand(Dunlop), same size, different "style" and now both speedometers read the same speed . This tire was the same number size but mounted stood taller than the old tire. What my friend failed to realize was that his cycle came stock with a Metzeler so he was not reading accurately either. So do not dismay, your friend may not have the correct height tire on his bike. You will have to make some speed runs past on of those signs that tell you how fast you are going and see how accurate your machine is. My 2009 Suzuki DR200 reads 2 MPH slow by the police speed signs.

Your speed sensor is not working properly this part is located under the motor shroud and on top of drive motor it is attached to a bracket with 2 bolts. Unplug the unit and remove motor shroud see if you can adjust it first by loosen the 2 nuts and moving the sensor forward without making contact to the flywheel, then tightened the nuts up. Plug the unit into the outlet, start the unit, if you still have the overspeed then replacement of the sensor is needed. Call Landice Directly they will ask for model and serial number and they will the new sensor.

there is a voltage regulator inside the circuit board , this might have got wet some how . this circuit controls 1-10 speed from a touch of a button . will have to disassemble unit , Auth personal should check this , unless you know electronics

Did you remember to set the overspeed shutdown threshold on the control board?