TCL LCD TV L42M61F negative image fault repair example - android - Phones Developers

Electronic scale crystal oscillator 3.2*2.5mm 3225 16M (16.000MHZ) 12PF 10PPM 20PPM 30PPM
Brand AVX TPSE226M035R0125 Low impedance tantalum capacitor AVX 22
Huaqiang Square crystal original spot stock

Model: TCL LCD TV L42M61F
Fault: Negative image, the image is dark in the dark, the color is weak and not true. Troubleshooting: AS15-HG replaces AS15-F

Today, a customer sent a 42-inch TCL LCD TV. The image was white in the dark, the color was weak and not real. The customer requested to repair it immediately. After the repair, it should be pulled away immediately. The initial judgment is that the fault is in the logic version. Under the logic version of the iron shell, the power supply voltage is normal. Observe that the IC board size and AS15 size are found on the whole board. Remove the IC thermal silica gel. It is found that the AS15-F (surprise) is used. According to the experience, the logic version of AS15 appears. Most of the negative symptoms are caused by the poor AS15. Why are you surprised? Because most of the AS15 can be used to troubleshoot, just wait for the money to be collected, and take the AS15-HG for troubleshooting.

Because the customer is waiting for the machine to take the opportunity to forget the picture when the fault is taken:
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