Hello everyone. I have had this TV for a few years and it has given me a lot of trouble. It has been replaced by the factory once while under warranty and then a year after it was replaced that unit went black. I had a company repair the TV. They installed a new main board and I think the T-con. Now it has gone black again. It stays in the standby mode and will not fully power up. The little vizio light on the front stays an amber color and pulse's to a dim amber after hitting the power switch. It should light up bright white. Does anyone have any ideas for me. Thanks in advance.
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Re: Vizio XVT553SV Power up problems
Open the tv up and take pictures of each board individually, one up close of each connector on the power supply board so we can see any markings and one of the entire back of the set.
Do you own a multimeter? -
Re: Vizio XVT553SV Power up problems
I do own a multi meter. I have also attached the photos. Thank you.Attached FilesComment
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Re: Vizio XVT553SV Power up problems
Connector CN202... DMM set to 20VDC, Red probe into the 3rd wire (red, PIN 3) connection (just push into top of connector where wire goes) and black probe to chassis (screw hole is good)
Reading before and after you try powering up the set?Comment
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Re: Vizio XVT553SV Power up problems
It reads 5.17v before and after the switch is pressed.Comment
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Re: Vizio XVT553SV Power up problems
CN201, Same as before on pin 1, 4 and 5Comment
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Re: Vizio XVT553SV Power up problems
The readings were the same for before and after pressing the power switch.
Pin 1: 2.1v
Pin 4: 5.17v
Pin 5: 5.17vComment
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Re: Vizio XVT553SV Power up problems
Do you have a 470 - 1k resistor at hand?Comment
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Re: Vizio XVT553SV Power up problems
I have 2 resistor at hand. They read
9.95K and 3.3K Would they work?Comment
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Re: Vizio XVT553SV Power up problems
I also found ones at
0.465k and 24.0kComment
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Re: Vizio XVT553SV Power up problems
Can you take a closer picture of the connector from the PSU to the mainboard pleaseComment
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Re: Vizio XVT553SV Power up problems
Here is a closer picAttached FilesComment
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Re: Vizio XVT553SV Power up problems
Ooo just realized this is an LED lol... Let me just check something.
Tom66 which pin is it to force this PSU on? Still same rating resistor to do so? Take it 465 is Ok too?
P.s Tom clear your PM's out LOL.. No one can message you
Last edited by newtothis; 11-30-2013, 06:58 PM.Comment
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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.
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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.
https://www.badcaps.net/forum/troubl...-hardware-devi... -
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