Question about Vizio Televison & Video
Tested the standby power and have 5.2VDC. Tested the backlight and remote on/off pins and have 3.1VDC, the 12VDC pins 6 & 7 have 12VDC. When I tested the Out 1 and Out 2 pins for the LEDs, the voltage goes to 130VDC as soon as the power button is pressed, then drains down and settles at 66VDC. I don't see any backlights on. Can you help identify the faulty board or pieces on a board.
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Posted on Jan 02, 2017
Im having similar problem and with my limited knowledge of lcd tvs and the voltages ALL being good except the pwr on or sw on voltage from the main board to the power supply which tells it to switch everything on Im guessing that something is going wrong on the main board. In the condition where it freezes it (the power on V) which switches everything on i get varied voltages such as 2.5 or 3 or (the normal 5v) and then when nothing powers up (blank screen) i read 0v on pwr on voltage but all my other voltages are corect (24v to inverter, 12 v to main board, 5v, etc.) Im guessing from researching this is that there is in improper voltage somewhere in the main board circuit. I have been unable to find it so i may order another board and post back.
Posted on Aug 21, 2013
SOURCE: I have a vizio E470i-A0.I came home to sound no pic.Tested with DC volts and have 130 volts on "vout1&2".If the leds are bad and unplug conector that has "vout1&2"shouldn't the voltage drop to100?
Keep it simple- Use the flash light test to see if you have no back lighting in which case then you have to replace the inverter board. And if it is not that board then your issue probably lies with your t con board.
Posted on Mar 03, 2016
It is 12 volts and also 24 volts DC, never check it without a load on it as it can damage the inverter circuit.
Posted on Dec 15, 2016
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