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一台IBM PC机个人用户(显示器仅为单色)配置了一块彩色图形卡,虽然按照装配要求插好该卡后,并且正确设置了系统板上的配置开关DIP的位置,仍不能使单色显示器显示图形信息。经本人检查发现原来是由于单色显示卡与彩色图形卡输出插脚定义不一样(如图1所示)。因此需对彩色图形卡电路输出至插座之间的线路连线作简单改动。当然改制后只能对彩色图形信息作单色显示,但使PC机具备了显示单色图形的功能。 一、改制方法 从图1不难发现,两卡输出脚其中第1、2、6、8、9都是位置相同的信号输出脚。如图2,只要把彩色图形卡电路输出至其第3、4、5脚的线路断开,具体做法可用一
A personal computer with IBM Personal Computer (the display is monochrome only) is equipped with a color graphics card. After inserting the card according to the installation requirements and correctly setting the position switch DIP on the system board, the monochrome The display shows the graphic information. I found the original inspection is due to the monochrome graphics card and color graphics card output pin definition is different (as shown in Figure 1). Therefore, the color graphics card circuit output to the socket between the wiring for simple changes. Of course, after the restructuring only for color graphics information for monochrome display, but the PC has a display monochrome graphics capabilities. First, the restructuring method It is not difficult to find from Figure 1, which two cards output pin 1, 2, 6, 8, 9 are the same position of the signal output pin. As shown in Figure 2, as long as the color graphics card circuit output to the first 3,4,5 foot line disconnect, the specific approach available