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LC490DUY (SH)(A2) flickert and freezes

مرسل: الثلاثاء 8 يوليو 2025 1:16 pm
بواسطة fadili
Hello, dear colleagues. I need your help. I have a TV with the above panel which gives a picture that flickert and freezes in cycles. There are some repair versions on YouTube, but they have not been successful for me. I ask colleagues who have experience in repairing panels to help me to bring it back to life.

Re: LC490DUY (SH)(A2) flickert and freezes

مرسل: الثلاثاء 8 يوليو 2025 2:22 pm
بواسطة SAID
Peace be upon you.
First, you must determine which side is affected, the right or the left, and cover the signal paths
Then, you must cut "VGH_EVEN and VGH_ODD"and connect them to VGH and VGL
If it doesn't work for you, reverse the connection to VGL and VGH
Only the healthy side should be connected

Re: LC490DUY (SH)(A2) flickert and freezes

مرسل: الثلاثاء 8 يوليو 2025 3:04 pm
بواسطة fadili
thank you for your effort. I have tried this method but it does not solve the problem in my case. Here are some photos of what the photo looks like after the intervention in the t-con. I have also tried with the jzy-01 module where I can change both vgh and vgl but without any satisfactory results.

Re: LC490DUY (SH)(A2) flickert and freezes

مرسل: الثلاثاء 8 يوليو 2025 3:07 pm
بواسطة fadili
Initially the photo looks like the first or third example and after about 10 minutes of work it adjusts a little better (see the photo in the middle) but at the beginning of the panel about 2 cm the photo remains with errors.

Re: LC490DUY (SH)(A2) flickert and freezes

مرسل: الثلاثاء 8 يوليو 2025 4:56 pm
بواسطة SAID
Sometimes the CKV signal paths on the damaged side must be cut and connected together