Re: Vizio E500i-B1 Backlight

I dont think it is a problem with the power supply. Had a problem with one of these not turning on when warm. The 15.6V on the 24V line has been reported in a few threads, the general consensus was a misprint on the board, I think.
This is what I had seen.
[url]https://www.badcaps.net/forum/showthread.php?t=68882[/url]

Replaced the power supply fixed the problem for me, but the 15V on the 24V rail remained the same, even with the new board and the TV is still working like a champ.Re: Vizio E500i-B1 Backlight

Re: Broken Vizio E500i-B1, need of service manual

I will pile onto this one and can confirm that when my TV is working, the 24v lines only report back 15.1v.
[url]https://www.badcaps.net/forum/showthread.php?t=68882[/url]Re: Broken Vizio E500i-B1, need of s...?t=68882[/url]

Re: Vizio D500-Bi No Backlight - Sorta

Anything else you suggest I check.
The boards for these are not widely available, so I want to be pretty sure.
The only other thing I was thinking was to remove the LED driver cable from the power supply to make sure that something else is not drawing down the voltage.

Re: Vizio D500-Bi No Backlight - Sorta

Thanks for the suggestions guys. Went through the basic threads, then found these 2 posts with very similar issues.
[url]https://www.badcaps.net/forum/showthread.php?t=59376[/url]
[url]https://www.badcaps.net/forum/showthread.php?t=54991[/url]

Did some followup testing when working and not working.
In working condition, here is the power supply pins:


When the TV is in a non working state, here is the pins:


It would appear that it is normal to have 15V on the 24V rail on...

Re: Vizio D500-Bi No Backlight - Sorta

Will do guys. I appreciate the response.

Hey all,

I am by no means an electronics technician, but more of a jack of all trades. That being said, I am looking for some experts in the field to help me out with what I should be doing next to troubleshoot.
I have a Vizio D500-Bi that if unplugged or not turned on for a while (1 hour perhaps) it will start and work fine, until it is turned off.

Once the TV is shut off, it will not turn on again, however the stand-by light will light up and there is 5v at the stand-by pin on the power supply. If I try to turn it on immediately there is no sigh of life...

Re: New Members - please post your introductions here

Hey Guys,

Been lurking and learnin for a while and wanted to say thanks.
I am in Austin currently been been around.

Looking forward to learning from you guys.