Vizio E3D420vx No Standy Power. Why?

[budm]

Re: Vizio E3D420vx No Standy Power. Why?

Remove that blown cap and then check the resistance between those two pads where the blown cap legs were connected to. TV unplugged of course.

[Denkodt]

Re: Vizio E3D420vx No Standy Power. Why?

Sorry, I was on vacation trying to enjoy whatever summer is left... I replaced the capacitor, thinking that might fix it, but the tv still does not turn on. Is there anything else I can check without removing the capacitor again?

[budm]

Re: Vizio E3D420vx No Standy Power. Why?

Remove that blown cap and then check the resistance between those two pads where the blown cap legs were connected to. TV unplugged of course.

Well? I do not like to repeat the request and instructions.

[taft1957]

Re: Vizio E3D420vx No Standy Power. Why?

I have the same tv model # E3D420FX The set is completely dead. It has power supply voltages of 5volts and 12 volts but no other voltages. No Vizio logo light, No standby power light. I am thinking it is a main board issue and would love to know the fix at a component level. The tv is completely non responsive to the remote. Please help

[Denkodt]

Re: Vizio E3D420vx No Standy Power. Why?

....

[Denkodt]

Re: Vizio E3D420vx No Standy Power. Why?

I removed the capacitor and tried to measure the resistance, but it just reads zero. I'm not using a professional multimeter, but I tried it on other things and does read somewhat correct.

[budm]

Re: Vizio E3D420vx No Standy Power. Why?

"I removed the capacitor and tried to measure the resistance, but it just reads zero."
So the resistance reading between the two pads where the capacitor was connected to show ZERO Ohm?

[Denkodt]

Re: Vizio E3D420vx No Standy Power. Why?

I apologize, it is reading open circuit. No number comes up.

[djju]

Re: Vizio E3D420vx No Standy Power. Why?

Hi! I have a symptom in Vizio E3D420VX TV
1. Press power button, power white light on and Vizio V logo is on the screen
2. Logo goes off, power white light blink one time.
3. Power goes off by itself and doesn't come up
4. Same symptom in every time when I press power button.

Is it an exactly same symptom as you?
Can it be solved by replacing the power board?

[johniwad]

Re: Vizio E3D420vx No Standy Power. Why?

This model is known for main board going bad. Components to check on main board are as follows.
UP2
UP13
FP1
FP2

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E3D420VX
E3D320VX