Badcaps.net Forum
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 03-07-2020, 01:47 PM   #1
layad
Member
 
Join Date: Nov 2011
Posts: 78
Default Silly question about led strps

Hi , what makes the exact led goes bad within 3 days, changed one single led on LG TV and within 3 days the same led gone bad , really burned , did it several times but still the same one goes bad
layad is offline   Reply With Quote
Old 03-07-2020, 01:53 PM   #2
budm
Badcaps Veteran
 
budm's Avatar
 
Join Date: Feb 2010
City & State: S.F. Bay area
My Country: USA
Line Voltage: 120V 60Hz
I'm a: Knowledge Seeker
Posts: 39,205
Default Re: Silly question about led strps

What is the specification of the replacement LED?
__________________
Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956

Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999

Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl

Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/

TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809
budm is offline   Reply With Quote
Old 03-07-2020, 04:16 PM   #3
R_J
Badcaps Veteran
 
Join Date: Jun 2012
City & State: ☻
My Country: Canada
I'm a: Professional Tech
Posts: 7,305
Default Re: Silly question about led strps

Quote:
Originally Posted by layad View Post
Hi , what makes the exact led goes bad within 3 days, changed one single led on LG TV and within 3 days the same led gone bad , really burned , did it several times but still the same one goes bad
Likely how you changed it. What did you use to remove it and then resolder it? was the trace also damaged?

Last edited by R_J; 03-07-2020 at 04:22 PM..
R_J is offline   Reply With Quote
Old 03-07-2020, 05:01 PM   #4
petehall347
Badcaps Veteran
 
Join Date: Jan 2015
City & State: worcester
My Country: United Kingdom
I'm a: Knowledge Seeker
Posts: 2,967
Default Re: Silly question about led strps

maybe the old ones killed it .
petehall347 is offline   Reply With Quote
Old 03-07-2020, 05:34 PM   #5
layad
Member
 
Join Date: Nov 2011
Posts: 78
Default Re: Silly question about led strps

First one was taken from an other strip , use air gone from underneath to remove and resolder, second one was brand new, heat from underneath, third one was brand new, traces are fine
layad is offline   Reply With Quote
Old 03-07-2020, 05:36 PM   #6
layad
Member
 
Join Date: Nov 2011
Posts: 78
Default Re: Silly question about led strps

By the way can I bypass it by make a jumper?
layad is offline   Reply With Quote
Old 03-12-2020, 04:07 PM   #7
petehall347
Badcaps Veteran
 
Join Date: Jan 2015
City & State: worcester
My Country: United Kingdom
I'm a: Knowledge Seeker
Posts: 2,967
Default Re: Silly question about led strps

if you really want to bypass it an led of correct spec is best to do that . or pick a diode with similar characteristics ,
petehall347 is offline   Reply With Quote
Reply

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



Badcaps.net Technical Forums 2003 - 2021
Powered by vBulletin ®
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.
All times are GMT -6. The time now is 02:54 PM.
Did you find this forum helpful?