Redmi 2 Display Light IC Jumper Solution: Sometimes an issue with the LCD display of your device is not a problem with the actual LCD itself but instead with the display light IC being used to power it. In this guide, we’ll take a look at how to repair a Redmi 2 that has no display light.
How to Fix Redmi 2 Display Light Issues:
After assembling the Xiaomi Redmi 2, examine the motherboard for corrosion, carbon, or water damage. Use an electronic cleaner to thoroughly clean the entire card, and then use hot air to dry up specific areas.
Replace the LED if it’s an LCD jack; if it’s pasted on, take it off and look at the value written on it. If the value is satisfactory, replace the LCD; if not, examine the integer components as depicted in the diagram. Check each of the aforementioned pathways, and put jumpers on any that don’t have a track.
It will assist you in resolving Problems with the Xiaomi Redmi 2’s LCD display, light IC, and easel
Simple in the Xiaomi Redmi 2.
Manually inspect the power:
Manually inspect the power and ground tracks at each of the joints. If they are not continuous, cut a piece of copper track and solder it in. Pay particular attention to joints where power is distributed to multiple tracks.
Check the 68 Ohm resistors on the connections between the cathode and the grid of each transistor. If one is missing or has burned away, a track between the cathode and the grid may be missing or shorted to something else.
If you can’t fix it:
If the LCD value is a little different from the schematic value but is not indicated in the diagram, it may be due to a mistake in the schematic. If you can’t fix it, the only thing to do is to buy a new LCD. If you can’t fix it, the only thing to do is to buy a new LCD. You should check whether jumpers are required on all of the listed paths. You should check whether jumpers are required on all of the listed paths.
Worst case, the cause of the issue is a bad component. In these cases, you have to take the board apart, and remove and replace the component.
In this case, you have to take apart the board. Take note of where everything goes before you take it apart. You will then have to locate the component on the board and remove it.
Fault in the Logic Board:
If you are still having difficulty after working through this section, you may have an electrical fault in the logic board. If possible, borrow a logic board from a different machine of the same model and swap parts over. It’s not a perfect solution, but it’s a good way to eliminate corrupt parts. BACK TO TOP
CRT is not displaying the image It is likely that the inverter has failed. Inverters often fail when the CRT is replaced.