My Vizio M75-E1 turns on with no backlights
TV turns on, but no visible image on screen. When I do the flashlight test, I can see the menu and move through it. Also, audio, HDMI pass through, ARC, networking/streaming all are working fine so the main board appears to be OK. I am thinking one of the 2 LED driver boards are shot or possibly the power supply board is faulty? Has anyone seen the same situation before?
Thanks in advance!
HW
3条评论
Update: I have found a blown capacitor on the power board, C9805. Now checking other surrounding components...
由 Harold Walker 完成的
Replaced capacitor C9805 and TV now works, but bottom half of screen is darker. I suspect the diode D9805 to be faulty. Will change that next to see if it will rectify the issue. After this, I will simply purchase a new power board if they ever come back in stock.
由 Harold Walker 完成的
When I pulled the power board to repair it, I had also removed the LED driver boards to inspect them and had not reconnected the crossover cable between them when Input them back in. Once that cable was reconnected TV now works fine,
由 Harold Walker 完成的