Go Back   Badcaps Forums > Troubleshooting Hardware & Devices and Electronics Theory > Troubleshooting TVs and Video Sources
Register FAQ Calendar Search Today's Posts Mark Forums Read

Thread Tools Display Modes
Old 08-13-2021, 07:13 PM   #1
Join Date: May 2011
Posts: 59
Default VIZIO E50-C1 spotty / blotchy backlight?

Hi everyone, I've repaired several TVs with the help of the friendly folks here.

I rescued a VIZIO E50-C1 from the curb yesterday. I've had it running for several hours and it seems to work great, except for some cosmetic issues involving the backlight. I performed a factory reset and set the picture mode to 'Standard.' Backlight is 70%, 'auto brightness control' is off, and 'active LED zones' is off.

For the attached photo, I adjusted the camera settings to accentuate the issue.

My main concern is the area at the bottom of the screen with the distinct border. The area does not change shape and always appears slightly brighter than the surrounding area. The overall uneven backlighting, and even the dark / splotchy areas on the right half of the screen aren't very bothersome during normal viewing.

Is the brighter area at the bottom possibly due to an issue with the backlight's reflective sheet? Perhaps it has become dislodged or warped from heat?

I have not yet opened the TV, and figured I'd ask here before I do. Thanks for any help you can offer!
Attached Images
File Type: jpg VIZIO E50-C1 blotchy backlight.jpg (146.7 KB, 29 views)
gustagen is offline   Reply With Quote
Old 08-13-2021, 09:45 PM   #2
Badcaps Veteran
Join Date: Sep 2020
City & State: Guelph
My Country: Canada
Line Voltage: 120VAC 60Hz
I'm a: Hardcore Geek
Posts: 240
Default Re: VIZIO E50-C1 spotty / blotchy backlight?

I don't see how this can be fixed without opening it.
alfatv is offline   Reply With Quote
Old 08-27-2021, 09:50 AM   #3
Join Date: Dec 2017
City & State: Warner Robins
My Country: United States
I'm a: Knowledge Seeker
Posts: 62
Default Re: VIZIO E50-C1 spotty / blotchy backlight?

Normally when there is discoloration the diffuser caps over the leds may have popped off. Have you opened the tv yet?
GAStuntman is offline   Reply With Quote
Old 08-28-2021, 07:56 AM   #4
Badcaps Veteran
Davi.p's Avatar
Join Date: Sep 2009
City & State: Milan
My Country: Italy
I'm a: Hobbyist Tech
Posts: 2,490
Default Re: VIZIO E50-C1 spotty / blotchy backlight?

from the curb yesterday
what do you mean? TV is found on a landfill? At open air?
Seems dirt inside sheets and also wet in the bottom border...
Davi.p is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump Technical Forums 2003 - 2022
Powered by vBulletin ®
Copyright ©2000 - 2022, Jelsoft Enterprises Ltd.
All times are GMT -6. The time now is 09:47 AM.
Did you find this forum helpful?