TCL LCD TV L40E77 put a flower screen fault repair - android - Phones Developers

Electronic scale crystal oscillator, 3.2*2.5mm size, model 3225, 16MHz (16.000MHZ), 12PF, 10PPM, 20PPM, 30PPM
Probe for current and voltage pin, 420*4450 head diameter 5.0, over current and voltage pin testing
Brand AVX TPSE226M035R0125, low impedance tantalum capacitor, 22 microfarad
0603 Blu-ray chips, direct factory sales
Single-piece inductor, suitable for high-frequency applications

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When you first boot up the device, there might be a horizontal dotted line on the screen. Please check the image below.
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After some time, the issue may become more visible. Take a look at the next picture.
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The display looks clear and the logic seems normal, but the problem is likely related to the motherboard. Examine the circuit board carefully.
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Check U8: The voltage reads 0.9V, which is unstable with significant ripple (normal value should be 1.2V). U7 and U8 are not functioning properly. However, capacitors CA12, CA14, CA16, and CA19 appear to be in good condition.
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[attach]478121[/attach]
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