Hi Diah,
can you please let me know which chip is a SPI on T-con board?
Are we going to download firmware from chip that I need to take out from the board, or that it is possible with a cable? If it is possible with a cable, do you have a pinout?
Thank you for your time!
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Hi Diah,
I got new T-con board and I got some strange RBG pattern and I could not see all colors on a screen. Please check picture in attachment.
I tried to connect everything back, but still nothing on a MB and I decide to heat it up with flux and I got picture on TV.
Although, I can see some white/grey colors on a black, looks like pixels refresh issue.
Should I proceed with pixel refresh option from settings? I also do have service LG remote….can something be done with that?
Thanks...
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Thanks Diah for your time….no worries!
I will try to heat up the MB, just to see if that would help!
can you please tell me one thing, even if MB is locked/sleep I should still got red light on Optic with disconnected T-con if MB is good?
And with disconnected MB, with bypassed PWR-ON, DRV-ON and 12V-ON, I should see color pattern on screen?...
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Yes, I done exactly what you wrote.
After I put jumpers in place, PWR-ON and DRV-ON to 3.5V I have 22V for T-Con, but I dont get 12VT-ON.
If I apply also jumper (3.5V) to 12VT-ON then I get all voltages for T-con, including 12V.
With all 4 ribbon cables connected from panel to T-con board I have black screen, if I disconnect one/two panel ribbon flat cables I do get some lines on a screen. Please see pictures in a post #9
Thanks
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I have disconnected Main board, and connect 3.5V to PWR-ON, DRV-ON and 12V-ON, with all cables connected (everything except MB…LVDS cables disconnected as well), I have black screen.
if I disconnect first or last panel ribbon cable from T-con board, I can see some lines on screen.
Does that mean that my panel is defective? Could that be an issue with T-con board?
Thanks...
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Does anyone have schematic diagram for Main Board 65” OLED LG TV?
I managed to trace DRV-ON signal from P7603 connector (cable connection between Power supply - Main board), to resistor R322. I found that resistor shorted/bypassed. From that resistor line is going to IC101.
Resistor next to R322, R319 is also shorted/bypassed….that line is going to IC101 as well.
Is that normal that resistor is bypassed? Is that resistor in that line for monitoring “open loop”?
I am just guessing, but some schematics would definitely help...Last edited by Damirget; 11-30-2023, 09:04 PM.
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Hi,
i tried disconnecting every cable one by one, but still I do not have proper voltage on DRV-ON.
When I disconnect P7601 connector from MB to T-con, then I do not have any voltage on DRV-ON, regardless of the status - standby or power on.
I bypass PWR-ON and DRV-ON and I got 22VDC on power supply board for T-con, but only when P7601 cable is disconnected, otherwise even with bypassed PWR-ON and DRV-ON, I have 0V.
With all cables connected to T-con board (except P7601 - one of the cables for MB) i do have 22V on a fuses (marked as green on...
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LG 65ET961HOZA, no video/no audio, black screen
Hi,
I am new here, so first off all I would like to thank you all for advice that you share.
i did saw few similar problem as mine on this forum, so lets see if I will be able to bring my TV back to life.
When I power TV, I could here relay click and red light blinks for 7 times and then it stops lit, looks like TV is ON, but nothing on a screen, no video, no backlight and no red light on Optical connector on MB (when T-Con board is disconnected, red light blink for 3 times and then is ON, same as TV is off and relay clicks).
On power supply...
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