I just bought a Vizio 47" model VO47LF. Randomly the picture freezes and sound goes off. There is no response to the remote or the switch panel. I have to unplug it and plug it back on and it comes back on with a very good picture. This has happened about three times but I am concerned since the set is not even a month old.
It sounds like a main board failure but it could be the power board as well, to find out your going to need to test the power supply voltages when it quits
SOURCE: my 47 in vizio lcd tv. the zoom/widescreen
the LCD TV is overheating. Solution A) allow air circulation. B) set up a small fan behind the TV C) once the set is cooled down save your preferences
SOURCE: vizio 47" lcd no picture no sound has power
this could be one of two problem. first, check if you have back light. If you do then the problem is with the M/B. Second, if you don't have back light then the inverter is bad and needs to be replace.
SOURCE: I have a Vizio VO47LF. Sometimes it turns off by
There are two places to look for the problems, the backlight inverter board and the power supply. Look at the power supply first since it is easier to get to, look for burnt parts, bad capacitors, etc.
http://en.wikipedia.org/wiki/Capacitor_plague
Please post back what you find.
SOURCE: Where can i order a replacement lcd screen for a
Repair is not an option on a cracked LCD screen. It is easier and cheaper to just buy another Television.
SOURCE: vizio 47" lcd, no picture,
Hi goldenstripm,
Power on the unit in the dark room then shine with the flashlight directly in
the screen, you will barely see the images. This is because your backlight is
not functioning. The following reason is the caused.
1. Power supply - missing
B+(supply voltage) coming from this board feeding the inverter board. This is
caused by faulty transistor, dried/leaky electrolytic capacitor, open fusible
resistor.
2. Inverter board - even
the B+ is good from the power supply, if the fuse, driver transistor, driver transformer
is faulty no output to the backlight resulting to black picture.
3. Busted backlight - even
inverter board is good but if this is busted resulting to black picture also.
Diagnosing the fault is technical and if you don't have necessary tools and test instrument and can't fix it yourself, I would
advice you to look for an experienced
technician to isolate the
problem.
Hope I helped you.
Have a nice day!
Thanks for using Fixya.
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mine too
This has happened to me also it's a 42" 120 hz brand new tv from Sams Club. I thought it was jumping the channel but it was frozen, I can't power off, change channels, or anything via remote or buttons on tv, the only thing that I can do is unplug it and then it's ok again, but it's happened to me 4 times within 3 weeks of buying it.
Same thing with our Vizio VP 423. It is 2 months old and it has frozen twice today while watching NFL game. Unable to unfreeze until unplugging it and restarting.
i have the same problem one more symptom high pitch squeal has happen twice in 2 weeks email vizio tonight! lcd 420xvt
My Vizio HD 32" has the same problem with the same recovery procedure.
LG has notified all their customers that a fix is available.
I bought the 47" 120hz SV47OXVT from COSTCO a month ago and today the picture just froze, there was no sound and the remote or control panel wouldn't work either. After I unplugged it and plugged it back in it worked.
I have the same problem. Does anyone know of any fixes?
I have the same problem , mine is a 42" Vizio
vizio 37 inch -- screen freeze - remote will not work nor TV side mount controls - Only solution unplug. Set purchased 12-24-08 -- problem started April 2009.
I have the same problem: screen freeze - remote will not work nor TV side mount controls - Only solution unplug. TV using anetenna only, no cable.
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