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huntertownsen
Joined: 24 Jan 2017
Posts: 6
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 Posted: Tue Jan 24, 2017 8:12 pm Post subject: LG 60ln5600-ub - no sound and vertical lines |
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Hi thx for the forum 60ln5600-ub lg led tv, vertical black and white lines, no sound. unusual problem, it does have a few colored lines about a pixel width, every source change shows up differently on the screen.
I believe the main board where the input, for audio video is out , I havent found anything on the web with a similiar problem, some of the sources are black and white lines just in the center 1/3 of the screen , black on the outside, some are all gray and black lines. thee is no sound at all , i have hooked up video and audio inputs the all the hdmi and rca jacks, the only difference i can see are a few small green blue and red lines when there is input. I thought tcon board but there is no sound, any help is much appreciated. thx again in advance rob |
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kuhurdler
Joined: 28 Dec 2006
Posts: 2879
Location: Overland Park, KS
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| Posted: Wed Jan 25, 2017 7:55 am Post subject: |
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Welcome.
Check the voltages coming from your power supply, but this sounds like a main board failure. |
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huntertownsen
Joined: 24 Jan 2017
Posts: 6
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| Posted: Wed Jan 25, 2017 9:06 am Post subject: |
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| Thx for the advice , do you have any idea where i could get a pin out for this thx again rob |
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huntertownsen
Joined: 24 Jan 2017
Posts: 6
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| Posted: Wed Jan 25, 2017 9:37 pm Post subject: |
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| Update i tested the power board and i have all the correct output voltages, when i used the nuetral bar as a negative for the meter, at both ends of the ribbon, i then tested the ground points. on one i had 0 resistance, on the other i had 1.3 k ohms??? suggestions would be appreciated thx rob |
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kuhurdler
Joined: 28 Dec 2006
Posts: 2879
Location: Overland Park, KS
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| Posted: Thu Jan 26, 2017 11:22 am Post subject: |
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| I don't really understand what you're describing. Perhaps a picture would help. |
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huntertownsen
Joined: 24 Jan 2017
Posts: 6
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| Posted: Fri Jan 27, 2017 12:39 pm Post subject: |
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http://imgur.com/FeZOaty
Sorry for the post , trying to see if that works[/url][/code] |
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kuhurdler
Joined: 28 Dec 2006
Posts: 2879
Location: Overland Park, KS
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| Posted: Mon Jan 30, 2017 12:52 pm Post subject: |
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| looks like bad tab bonds on the panel. Do they do anything if touch the ribbon cables? |
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huntertownsen
Joined: 24 Jan 2017
Posts: 6
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| Posted: Mon Jan 30, 2017 1:42 pm Post subject: |
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| no , i havent and ty, i thought bad bonds made horizontal lines, but im still learining |
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huntertownsen
Joined: 24 Jan 2017
Posts: 6
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| Posted: Mon Feb 06, 2017 2:17 pm Post subject: |
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| The screen appears to be fine, any other suggestions , thx rob |
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