[Samsung UE40D5000PW] Horizontal band

[cicabu72]

Good morning everyone, this is my first request here, I really need your help with my Samsung TV LCD UE40D5000PW.

This the current situation, you can view a dark horizontal band on the top of the screen. Problem has suddenly appeared, TV hasn't been suffering accidental hits, TV was bought in 2016. Panel or T-CON issue?

Thank you!




LCD TV details


https://ibb.co/mRRnKT
https://ibb.co/g7uUYo
https://ibb.co/gKLsm8

[Diah]

Re: [Samsung UE40D5000PW] Horizontal band

much like T-CON, upload good photo of yours T-CON first

[budwich]

Re: [Samsung UE40D5000PW] Horizontal band

the dark issue likely suggests a problem with the way the side drivers are being fed (or not). On smaller sets like this, these are usually fed by the lower corner tab on the bottom of the panel. Check that area out. Apply some light pressure on the tab to see if it changes anything in the display (ie. darkness / band goes away).

[cicabu72]

Re: [Samsung UE40D5000PW] Horizontal band

much like T-CON, upload good photo of yours T-CON first

Bigger here: https://image.ibb.co/ejNLOo/DSC_20180730_170708_302.jpg

the dark issue likely suggests a problem with the way the side drivers are being fed (or not). On smaller sets like this, these are usually fed by the lower corner tab on the bottom of the panel. Check that area out. Apply some light pressure on the tab to see if it changes anything in the display (ie. darkness / band goes away).

I will check if applying pressure changes the problem on the display..

[Diah]

Re: [Samsung UE40D5000PW] Horizontal band

Ok thanks for the photo, you need first to disconnect one side ribbon cable between T-COO & LCD of the effected side , and tell the result.

[cicabu72]

Re: [Samsung UE40D5000PW] Horizontal band

Ok thanks for the photo, you need first to disconnect one side ribbon cable between T-COO & LCD of the effected side , and tell the result.

Is the one at the bottom, correct? What should happen? I'll test in the evening

[Andrew F. Ali]

Re: [Samsung UE40D5000PW] Horizontal band

No. not the bottom one. That is the LVDS cable from the Main Bd. The ones that should be removed one side at a time are the top ones. With the set off, remove one side and turn on the TV and observe if the band appears on the half with the picture. Then turn off the TV reconnect the removed side and disconnect/remove the other side. Turn on the TV and observe if the band is present. Report your findings.

[cicabu72]

Re: [Samsung UE40D5000PW] Horizontal band

Sorry for beeing late, here you can find pictures with one cable disconnected at time. Is this problem related to T-CON? I am going to replace it in case! Thank you!




Bigger pictures here: https://image.ibb.co/hGoJGK/DSC_20180803_125003_742.jpg / https://image.ibb.co/ckYUOz/DSC_20180803_125302_848.jpg

[Diah]

Re: [Samsung UE40D5000PW] Horizontal band

the effect on the effected side look different as the first post image, and also i can see on the first post the image when you had called the service menu the image became complete with out any issue of the service menu content.. !!
please confirm it with service menu image

[cicabu72]

Re: [Samsung UE40D5000PW] Horizontal band

the effect on the effected side look different as the first post image, and also i can see on the first post the image when you had called the service menu the image became complete with out any issue of the service menu content.. !!
please confirm it with service menu image

Yes it looks different, it's a little bit weird.

When I plug both cables while displaying the service menu image, vertical stripes on the left disappear and the image artifact looks similar to my first post (darker image).

[Diah]

Re: [Samsung UE40D5000PW] Horizontal band

in service menu make hard reset. check LVDS between MB and T-CON

[cicabu72]

Re: [Samsung UE40D5000PW] Horizontal band

Sorry there was a misunderstanding.. the image on the first post displaying service menu (LCD TV details) was a previous one, before the appearance of the problem. I will check.

[attainteddragon]

Re: [Samsung UE40D5000PW] Horizontal band

as budwich mentioned in post #3, you appear to have a panel fault. most likely unrepairable for this set.

[Andrew F. Ali]

Re: [Samsung UE40D5000PW] Horizontal band

T-CON Bds when they go bad or are failing do not manifest their faults with HORIZONTAL lines or symptoms. The symptoms always show as VERTICAL lines. Since most screens now only carry COFs at the top or bottom of the Panel and do not have side Tab Bds are connected to the T-CON Bd via a Source Bd or Tabl Bd you could have applied the bypass method to repair horizontal lines issues. So yes you do have a bad Panel and so this is repairable at a high cost and is not worth the expense.

[tom66]

Re: [Samsung UE40D5000PW] Horizontal band

Dead panel, toss it.