Re: Working backlight and sound, but no picture (55LA6208)
So what is the best thing I can do right now? Can I measure something? I really want to know what board is broken and why I don't see any picture.
I already changed the t-con board, so that is not the problem.
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Re: Working backlight and sound, but no picture (55LA6208)
Thanks!
Measured it again without the cables connected:
VGH: 27,9Vdc
VGL: -6.9Vdc
VDD: 16.8VdcLast edited by Carlozzz; 11-17-2016, 01:07 PM.
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Re: Working backlight and sound, but no picture (55LA6208)
I got these voltages:
VGH: 0Vdc
VGL: -6.94Vdc
VDD: 0.5Vdc
And I could not find the VDA
I hope you know what the problem is.
Thanks in advance!Last edited by Carlozzz; 10-22-2016, 03:14 AM.
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Re: Working backlight and sound, but no picture (55LA6208)
Thanks for the feedback!
I got this problem on all my inputs, if the problem was only on one input, I would have seen some pictures or input message when I changed channels. I tried cleaning the flat cable between mainboard and T-con board, but it did not make any difference.
Can I test something else to make sure my problem is in the mainboard and not the T-con board?
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Re: Working backlight and sound, but no picture (55LA6208)
Yes, there is 12VDC at both ends of the SMD fuse with ref to the chassis GND.Last edited by Carlozzz; 10-17-2016, 06:22 AM.
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Re: Working backlight and sound, but no picture (55LA6208)
There are two flat cables on the T-con board going to the screen, i disconnected one ribbon at a time, but it did not change anything, it is still a black screen with led lighting behind it.
Here are some pictures of the back of the tv:...Last edited by Carlozzz; 10-16-2016, 05:20 PM.
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Working backlight and sound, but no picture (55LA6208)
Hi,
I have a problem with my 55LA6208 LG led tv. When I turn on the tv, I only see a black screen. The black screen is powered by the leds in the background, so the back lightning is working fine.
The problem is that I don't see any pictures on the screen.
I think the fault wil be in the mainboard or the T-con board. I already measured the fuse on the T-con board, the fuse is just working fine.
So I have a tv with sound and a black screen powered by leds.
Is there anybody who knows what my problem could be?
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