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 10-21-2019, 03:34 PM   #1
23andreas
New Member
 
Join Date: Oct 2019
City & State: Fredrikstad
My Country: Norway
I'm a: Knowledge Seeker
Posts: 3
Default Samsung LE40F86BD - Bad t-con board?

Hello

I just finished replacing power supply capacitors on my TV, but when I turned it on the screen looks like this.



Does this look like a bad T-con board to you?

Thanks!
Attached Images
File Type: jpg g5kik0tqyxt31.jpg (61.9 KB, 5 views)

Last edited by 23andreas; 10-21-2019 at 03:36 PM.. Reason: attached the image as well incase the link goes down
23andreas is offline   Reply With Quote
Old 10-21-2019, 04:15 PM   #2
digitalpc
Member
 
Join Date: Jun 2016
City & State: DLL
My Country: .DLL
I'm a: Student Tech
Posts: 92
Default Re: Samsung LE40F86BD - Bad t-con board?

i think MAX9590ETU chip can be your problem
digitalpc is online now   Reply With Quote
Old 10-21-2019, 07:21 PM   #3
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: 36,241
Default Re: Samsung LE40F86BD - Bad t-con board?

Panel Gate drive issue causing doubling images. Taped off method may solve the issue.
__________________
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 10-22-2019, 12:04 AM   #4
angelos
Badcaps Veteran
 
Join Date: Dec 2012
City & State: Free State
My Country: South Africa
Line Voltage: 220V AC
I'm a: Professional Tech
Posts: 238
Default Re: Samsung LE40F86BD - Bad t-con board?

I agree with Budm, there are video's on youtube that address this issue.
angelos is offline   Reply With Quote
Old 10-22-2019, 04:25 AM   #5
nomoresonys
Badcaps Veteran
 
Join Date: Jan 2013
City & State: midwest
My Country: U.S.
I'm a: Knowledge Seeker
Posts: 4,037
Default Re: Samsung LE40F86BD - Bad t-con board?

Yep, I third the motion: https://www.youtube.com/watch?v=j7vl7-vZEL8
nomoresonys is online now   Reply With Quote
Old 10-22-2019, 12:39 PM   #6
23andreas
New Member
 
Join Date: Oct 2019
City & State: Fredrikstad
My Country: Norway
I'm a: Knowledge Seeker
Posts: 3
Default Re: Samsung LE40F86BD - Bad t-con board?

Quote:
Originally Posted by budm View Post
Panel Gate drive issue causing doubling images. Taped off method may solve the issue.
Quote:
Originally Posted by angelos View Post
I agree with Budm, there are video's on youtube that address this issue.
Quote:
Originally Posted by nomoresonys View Post
Thanks for the video link, it was very helpful! You guys were correct. I opened the tv and managed to locate the panel gate drive. No need for any tape, just unplugged it and plugged it back in and now the tv image is perfect!

Thanks a lot!
Attached Images
File Type: jpg IMG_1786.jpg (413.9 KB, 8 views)
23andreas is offline   Reply With Quote
Old 10-22-2019, 01:14 PM   #7
nomoresonys
Badcaps Veteran
 
Join Date: Jan 2013
City & State: midwest
My Country: U.S.
I'm a: Knowledge Seeker
Posts: 4,037
Default Re: Samsung LE40F86BD - Bad t-con board?

Ok, thinking you just had a bad/dirty connection if you just had to re-seated the ribbon cable.
nomoresonys is online now   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 - 2019
Powered by vBulletin ®
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
All times are GMT -6. The time now is 05:41 PM.
Did you find this forum helpful?