Today, a fellow villager mentioned he had three TVs and asked if I would recycle them. Two are 21-inch CRTs, and one is a 32-inch LCD. With the hope of finding a bargain, I brought them back. One CRT won’t power on, and the other has interference lines. Even if repaired, they wouldn’t sell for much, so I set them aside! The LCD is a BOE LE32P610. Since it’s LED, if repaired, it might sell for two to three hundred, so I took it to the repair shop for testing.
I powered it on, the red light turned green, the backlight lit up, and a blue screen appeared. Just as I was about to feel happy, I noticed there were no characters, and the screen dimmed again. A blurry bright spot moved around in the middle. Upon closer inspection, I found that the moving bright spot was the ‘No Signal’ text from the screensaver, but the afterimage was too severe to see clearly! I checked the screen information and found a post stating that the VGH voltage was not applied to the COF on the side of the screen, which usually can be solved with a flying wire. However, this screen edge board does not seem to be commonly used, so there is little information available! But the original post did not clearly specify which point is VGH. I searched other posts and saw a technician on the Aixiuwang site who introduced the flying wire pinouts for this screen! However, after measuring all the points on the edge board, I surprisingly found no 20-plus volt VGH voltage!
Since the edge board is connected to the two-in-one main board via a ribbon cable, I went to measure the points on the main board and quickly found the long-lost 27V voltage. I thought, let’s try this! I connected the main board and COF using the enameled wire from the transformer of the satellite receiver! I powered it on, and the picture appeared! However, the image colors were severely biased towards blue and red. I was too lazy to disassemble the screen again, so I tried to adjust it through the bus. I selected the signal input, then entered 2580 to access the engineering mode, went into W/B calibration, adjusted according to the actual effect, and the image was basically close to normal. That’s it! It’s a junk TV, and further repairs wouldn’t be worth the labor cost!
Original: http://www.jdwx.info/thread-649805-1-1.html
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