John Deere Mobile RTK Modem 4G LTE Electromagnetic Interference EMI can disrupt or overload the communication circuits of the computer and monitor system, causing erratic display activity. Severe cases result in a complete system shutdown.
Common causes of EMI include:
Operating close to high tension wires and broadcast towers
Noisy power supply
Monitor too close to the radio antenna
Old radio cables used
Poor system ground
Monitor power not directly connected to battery
Radio power not directly connected to battery
Monitor wiring harness too close to radio wiring
Monitor not connected to on-board computer with the standard system cables
To overcome problems before replacing monitor, check causes of EMI and take corrective measures.
More repair case for John Deere,please refer to:John Deere Trouble Repair