No power and chirping noise when power is plugged in
I was watching my Vizio M50-C1 television when then screen went black (no back-light), and a chirping / clicking noise was heard. the TV would not respond to the power button on the remote or on the back of the TV. When the TV was removed from power, the noise stopped.
I tested the outlet with other devices, those worked fine. Next, I opened the back panel of the TV, and tried to identify the location where the sound originated. The sound appears to be coming from the same board that the power is plugged into, but on the opposite side (red circle is area where sound is).
There does not appear to be any damaged components - capacitors do not look bulged or leaking. what would be the best way to find / replace any defective component?
Thank you in advance!
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5 opmerkingen
Hi Brian. I'm having the same chirping issue in the same spot on the power board on my Vizio M49-C1. I was watching TV and then suddenly the TV powered off and the chirping started. I was thinking about replacing my power board as well until I came across your post.
I'm curious, did you ever find a solution for this? Or did you just buy a new TV?
door Jason
So I replaced the power board today but just like Brian I still had the same issue. The issue seems to stop when I disconnect the cable connected to the main board but then resumes again when I plug the main board back in again. I'm going to try replacing the main board next and I'll let everyone know if that solves it.
door Jason
changing the main board fixed it!
door Jason
Does the main board just plug in? Or do you need special tools to change it?
door Roy Crago
sorry it's been awhile... but if I remember correctly a screw driver is all you need. No special tools. BTW my TV is still working fine since I fixed it about 2 years ago. :-)
door Jason