LG 55” LED 55LN5710 screen problems...? (T-Con?)


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LG 55” LED 55LN5710 screen problems...? (T-Con?)

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Jakobeweb24
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Sep 5, 2017, 5:17 PM

Post #1 of 4 (952 views)
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LG 55” LED 55LN5710 screen problems...? (T-Con?)	Can't Post

Alright so I got this tv knowing it was broken. I’ve been looking into possible problems and I think it is either the tcon board or maybe the LVDS cable? Just wondering if anyone has any ideas of how to narrow down what the issue could be, or possible easy fixes. I’ll throw a link down below with some pictures of the screen. 75% sure you’ll be able to view the images.

https://imgur.com/gallery/OGjbq

(This post was edited by Jakobeweb24 on Sep 5, 2017, 5:25 PM)

jts1957
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Sep 5, 2017, 9:37 PM

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Re: [Jakobeweb24] LG 55” LED 55LN5710 screen problems...? (T-Con?) [In reply to]	Can't Post

F1 on tcon has b-plus on both ends?

Tcon or panel.

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Location: Far, Far Away

Jakobeweb24
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Sep 5, 2017, 9:48 PM

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Re: [jts1957] LG 55” LED 55LN5710 screen problems...? (T-Con?) [In reply to]	Can't Post

I really don’t know much about electronics past what I’ve watched on YouTube, I took a picture of the board and zoomed in on the “F1” area to hopefully answer your question... pic below.

https://imgur.com/gallery/NXuxV

jts1957
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Sep 5, 2017, 10:12 PM

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Re: [Jakobeweb24] LG 55” LED 55LN5710 screen problems...? (T-Con?) [In reply to]	Can't Post

Measuring DC Voltage is something you'll have to DO yourself.
TV On
DVM on DC Volts - Black test lead to metal frame - Red test lead to each end of fuse first to one end and then to the other.
DCV on both ends = Good - Voltage on only one end = Bad.

Continuity test with same meter can be performed as an alternative.
TV UNPLUGGED
Meter on continuity (or low resistance scale) - a lead on each end of fuse simultaneously.
Very low reading (or continuous beep) = Good - No reading = Bad.

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Location: Far, Far Away

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