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一台彩显为48cm(19英寸)的电脑连续工作数小时后,操作分辨率调整键,由显示模式:800×600(H:37.8kHz,V:60Hz)改变为显示模式:1024×768(H:68.7kHz,V:85Hz)时,屏幕画面的行幅突然缩小,再将显示模式恢复为800×600,行幅依然缩小,不再发生变化。接修此机后,首先进行机外检查。接通彩显电源并与主机联通后进行观察与操作,发现除了屏幕上的行幅缩小外,彩显的场幅和其他控制功能均正常。根据
A color display is 48cm (19 inches) of the computer for several hours of continuous work, the operating resolution adjustment key, the display mode: 800 × 600 (H: 37.8kHz, V: 60Hz) to display mode: 1024 × 768 H: 68.7kHz, V: 85Hz), the amplitude of the screen of the screen suddenly decreases, and then the display mode is restored to 800 × 600, the line width is still reduced and no longer changes. After repairing this machine, the first inspection of the aircraft outside. Connected to the color display power and communication with the host after observation and operation and found that in addition to the screen to reduce the width of the screen, the color display of the field and other control functions are normal. according to