Yesterday, the customer sent a Changhong TV: LED39920. When you turn on the computer, you can see the word "Changhong" still!
The Privacy Screen Protector can display a black screen directly in front of the screen at an angle greater than 30° to effectively block the sight of people next to it, while achieving a perfect balance between black screen privacy and daytime clarity.
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First bargain with the customer: from 200--" down to 150 transactions. Disassemble the cover, remove the 25Q64, load the RT809F to read the original program, re-verify the write, and replace it with the motherboard. Power on, can start. On the signal line, a picture sound appears. I thought it was a success, and I put it on the side to repair other electrical appliances.
At night, I will try it on the boot and see the picture of "Changhong" still. Switching on and off a lot of times, sometimes it can start normally, and the picture sound appears. Explain that the problem has not been solved!
This morning, I went to the same company to get a 25Q64 over and wrote the original program, and replaced the original block 25Q64 that was suspected to be "bad". When the power is turned on, the signal is flooded. After a few times, the machine is turned on and off, and the "freezer" situation does not appear. The repair is completed.
Original machine program: Changhong LCD TV LED39920 original machine program W25Q64.rar