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Xiaoyingba GTS450 does not display repair

IMG_256
The Xiaoyingba GTS450 does not display. When the RT9259A is replaced, the video memory resistor and VCC-PLL voltage are out. A BIOS is replaced, the first and second video memories are soldered, and the fault is still present. Replace a row of 0.1UF capacitors of Golden Finger, and the fault is contacted.