TCL LCD TV L42F3200E image inverted flower screen repair and normal data - android - Phones Developers

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TCL ace LCD TV L42F3200E TV with network, after the boot, the characters and menu boxes are enlarged and inverted. It looks like a screen failure, but carefully found that the LOGE pattern moves normally, the branching is not possible due to the screen problem. It is known from the Internet that the local remote control enters the image in the TV state. The cursor moves to the contrast item and then enters 1+9. +5+0 enters the bus debugging screen, the phone tells the customer that the remote control has been lost and said that this phenomenon has occurred N times. It is sold after the remote control is adjusted, but it will not be long before the fault reappears. . Because there is no original remote control to write a program to try, and several trials have different effects, I thought this fault is really caused by the program changes in 25F16, and finally found a program written and restarted immediately after the normal. Quietly thinking carefully why this problem always occurs, and there is no such thing as a fight or a fire. So I suspect that the motherboard power supply ripple is too large or 25F16 itself, using the oscilloscope test did not find suspicious waveforms, and finally only replace the 25F16. Remove the original machine 25T16 and replace it with a piece of 25F16. Write the program and solder the cleaning board. The boot image is bright and sweet.

TCL L42F3200E Motherboard 40-MS2800-MAD2XG Screen T420HW08 V.5 25F16胡.rar