Re: Vizio TV E3D420VX, No picture, power led on+blink 1time+V logo shown=>turn off
OK, I can see that the PS-ON is gone when the backlighs and the Power LED go out.
'P11 PSON 67.1mV 2.84V -> 67.1mV'
So some how the main board just stops sending out the command signal (the BL-ON (ON/OFF) and DIM are also gone). So it is main board problem or something sends the signal to tell the main board for the TV to turn off.
You may want to try disconnecting all other boards that are connected to the main board one at a time to see if the PS-ON will stay present. I wonder the control panel switch is doing this or the IR board. It acts like some one turn off the TV
BTW, so the TV never stays on long enough for you to see the Video or sound?
History of this TV?
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Re: Vizio TV E3D420VX, No picture, power led on+blink 1time+V logo shown=>turn off
The check result is updated as picture file. (please refer the attached file)
It has CN201 voltage check, LDO test result, STEPDOWN, and Power MOSFET result. (lt looks fine)
I did visual inspection after taking these board off.
I didn't see any faulty part on power supply & main board both. (leak, swallowed CAP or burn part)Attached FilesLast edited by djju; 12-18-2015, 06:06 PM.Leave a comment:
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Re: Vizio TV E3D420VX, No picture, power led on+blink 1time+V logo shown=>turn off
DELTA DPS-198BP (Vizio 0500-0407-1030)
We need the dcv reading on the connector CN201 AFTER the lights go out.
Make sure to put down pin names of each pin follow by the DCV reading.
http://www.shopjimmy.com/vizio-0500-...pply-unit.htm#
Pictures provided by shopjimmy.Attached FilesLeave a comment:
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Re: Vizio TV E3D420VX, No picture, power led on+blink 1time+V logo shown=>turn off
Thank you for your comment. I have uploaded video link of symptoms.
The noise in 1st video clip isn't from TV, just come from my wife...maybe...Attached FilesLeave a comment:
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Re: Vizio TV E3D420VX, No picture, power led on+blink 1time+V logo shown=>turn off
Posting pictures of the back of your tv showing the boards with clear pictures may help you more with fixing your problemLeave a comment:
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Vizio TV E3D420VX, No picture, power led on+blink 1time+V logo shown=>turn off
https://youtu.be/T482qH4Nmj8
https://youtu.be/RfyKGEeoy0k
Hi, I have a Vizio TV E3D420VX and it has symptom as below:
1. When I press power button, backlight on, 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?
Or, do I have to replace the main board??Attached Files -
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Vizio e601i-A3 - Has Sound and Display, But No Backlight - Bad Power Supply Board or Bad LED Bulbs ?I was given this TV from my great uncle. He said it just wouldn't turn on one day out of nowhere, replaced the TV, and gave it to me to possibly fix and use for myself.
Upon bringing it home and plugging it up, it showed a standby light.
I powered it on and without a flashlight, the display showed the "V" but the lighting is very dim, but visible.
The screen seems to blackout and stay black, but with a flashlight I can see the display.
With my Playstation 4 connected via HDMI, and running a game I can hear sound.
Assuming... -
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I found the boardview for this laptop in the forums here, and am able to open it on my PC with FlexBV.
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I have a 60 inch Samsung UN60EH6000F flatscreen TV. The screen went black a few months ago Sound is good, backlight is good, no menu. I replaced the TCon board with a used board purchased from Ebay. It worked fine for a 3-4 months, then the screen started ‘fading' back. Once again, sound is good, backlight is good, no menu. However, this time the picture looks fine for about 10-15 minutes, then fades back. If I power cycle the TV, the display reappears, for another 10-15 minutes, then fades black again. Repeatable ever time.
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Hi.
picked up another TV. This time is a Vizio M65-C1. TV does not turn on. I had repaired another 60 inch vizio , Bad main board.
When power button is pressed, the Power led indicator on the bottom right, turns for a few seconds and then it fades away. No backlight or Vizio logo on screen. Removed back cover and repeated test.
This is the TV This TV is a little different from the Samsung I have worked on. Power supply is on the Left side, Main Bd is on the right side, T-CON , not in the picture is on the bottom. I am assuming that the boards in the middle are the LED...
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