Good day!!
That issue is have many possible causes..
- faulty capacitors on the power supply board
1. Open the back cover of your TV.
2. Look at the power supply board..Its normally connected to the power cord..
3. After that,,try to look at the actual image of capacitors if it is bulged on the top so that you can easily determine the bad capacitors..
4. After that,,try to replaced the bad capacitors using soldering iron and soldering lead..replaced the capacitors only with the same type ratings and value..
5. Some of the capacitors not bulged so its better if have a capacitance meter..
- its possible that the color wheel is faulty..usually if the color wheel lasted 2 years its possible to failed it..
- the fan is not running so the TV got over heat.------Please check the fan is running after you power ON the TV..
- its possible that the color wheel is faulty..usually if the color wheel lasted 2 years its possible to failed it..-------If the 2 diagnose above is OK (normal) you need to try to replace the color wheel again.