Vizio E55-e2 ALL backlight goes out after approx 5 -10 min
I have replaced the PS board and checked voltage on PS board and it all checks out. I even tested the with volt meter on the old PS board and it tested out. I tested with volt meter after i purchased the PS board thinking it was PS issue.
Now i am looking at replacing the mainboard where the backlight power is coming off the main board where it appears two cables coming off the mainboard to the LED backlight strips.
When i power on TV the back lights are working and picture shows fine. The two connections going out to the backlights(circled in black) i put a volt meter on the right side it varies from 0 -2 V and on the left side it reads also varies from 0 - 2 volts. these readings are before the ALL the backlights turn off.
After about 5-10min the backlights go out and I put volt meter on those two connections going out to the backlights and the one on the right reads 4.6 V across all 6 connections. The connector on the left reads 4.9 , 4.9,5.0,5.0.5.0,6.4 V going from right to left of the pins
Should i just replace the mainboard?
4条评论
I have the same problem with black lights going out after 5-10 minutes . Audio still working with programming in the shadows. What was your solution?
由 Robert Sherman 完成的
@bobbym replaced backlight strip resolved my issue. It’s been runnning fine since March of this year 2020.
由 Drexter Evans 完成的
I having the same issues. Is there a video showing how to replace the backlights?
由 Joseph 完成的
Try shopjimmy for video Vizio 55 led replacement.
https://youtu.be/GD31ZbztQ5I
由 Drexter Evans 完成的