显卡的各种故障维修方法（国外英文资料）.docVIP

显卡的各种故障维修方法（国外英文资料） All kinds of troubleshooting methods for graphics CARDS: , graphics CARDS 31 0 1 d after the dawn of the chromaticity memory A line (A) test waveforms, such as A wave, and then waveform of crystal, crystal have A waveform, give priority to bad crystal chip waveform, voltage of crystal feet, again have voltage crystal is bad, bad no voltage is the main chip. (B) such as chroma no waveform memory, A area and D area of BIOS, if no waveform area A, measured again the gold finger and waveform and voltage value of the Yin, if normal, the resistance of the BIOS, again have main chip is bad, the BIOS may also be bad, so the BIOS area A waveform and waveform D area for BIOS is bad. The A and D areas of the BIOS have waveforms and the main chip is bad. The graphics card cant run WINDOWS, the main core version is bad. 3, the video card image comes out and the screen USES the resistivity method to measure the resistance value to the ground. To determine the line under the normal operation of the resistance, the waveform of the chromaticity memory oscilloscope for test data, two shades memory are measured, the chromaticity memory waveform is not normal, for the chromaticity bad memory. If the resistance and the waveform are normal, the main chip is bad. The amount of voltage and waveform of chromaticity is not enough, take the chromaticity, then test the voltage and the waveform. If the restoration is a bad color, no recovery is bad for the main chip. The waveform of the two chromaticity is the same, if there is a good anomaly, the chromaticity is bad. 4, the graphics card brightness is very dark measure the voltage of the resistance, the resistance value 5, the brightness of the graphics card is very bright to use the soldering iron to resolder the bright control capacitor, then wash with the washing board, if not, the main chip is bad. The graphics card has a low color bias and the main chip is bad The graphics card should not play the main chip, the accel