Ser# LUPEQAK4003599
SOURCE: Vizio 42" LCD HDTV - sound went out
Same thing just happened to me contacted Vizio had me unplug the TV from the wall for about a minute and then replug and cut the TV back on and everything was fine. I have the television hooked into HDMI1.
SOURCE: Vizio GV42L 42inch LCD/HDTV
there are several possibilities. first if the unit comes on and the "VIZIO" light turns white, but no picture or sound, then the main control board is most likely the issue. could be the LCD control board(s) depending on model one or two. and ultimately could be the power supply on the upper side....if the "VIZIO" light does NOT turn white, the whole power supply unit is out. after that, would have to scope the circuits to find out. Seems that the control board is the most common and tends to happen on many different sizes. new board will be around $350.00. Might get lucky and find a used one, but it MUST be EXACT part or it wont work right. if you dont find one or want to sell yours for parts, id be interested in the screen. can reach me at [email protected]. thanks, keith
SOURCE: Vizio lcd turns on but no picture
Sounds like the power supply/mainboard. I have a VO32L which is the same mainboard as VO37L and it had blown caps along the aluminum heat sink.
SOURCE: vizio vo47L 47" LCD. No
0ne of 3 has failed:
(in order of probability):
1. Backlight inverter
2. Power Supply
3. Backlight
More specifically on #1 and #2 - capacitors either bulging, leaking, or exploded.
Please seek the expertise of an experienced TV repair technician - as
they contain potentially lethal voltages that must be properly
discharged before work can begin.
Thanks!@#$
SOURCE: My vizio e420vl turned itself
There are at least two power supplies in any set with remote capabilities; one is on any time the set is plugged into AC and is supplying that indicator and the receiving circuit of the remote, otherwise it wouldn't turn on under normal conditions. The second power supply produces the needed service voltages used when the set is in use. This second supply is a common failure in many sets and it is generally traceable to poor design and the use of low-quality components of a certain type. Vizio may have a repair or exchange program through their service center. I would guess the cost will be between $50-$150 and you might remove the back panel of the set and look for a smaller board with larger-than-average parts on it and is related to the AC cord coming in. It should be fairly easy to remove and replace as these are often outsourced and just plugged into the rest of the set with dissimilar plugs making it simple to install and reinstall.
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