一、行幅调整电路行幅的调整包括以下三种情况:1.显示模式变化(行频变化)时的行幅自动调整理论表明,当显像管阳极高压和加速极电压确定后,光栅的水平幅度决定于偏转磁场的强弱,而磁场的强弱又决定于最大偏转功率 Pm。计算表明:Pm=Ec~2Ts~2/Ly。式中 Ec 为行输出管工作电压;Ts 为行正程时间,Ly 为行偏转线圈电感量。当行频 fH 升高时,行周期 TH 必减小。由于 Ly 与 First, the line amplitude adjustment Circuit line amplitude adjustment includes the following three cases: 1. Display mode changes (line frequency changes) when the line amplitude automatic adjustment theory shows that when the tube anode voltage and acceleration voltage is determined, the grating horizontal amplitude Determined by the strength of the deflection magnetic field, and the strength of the magnetic field is determined by the maximum deflection power Pm. Calculations show that: Pm = Ec ~ 2Ts ~ 2 / Ly. Where Ec is the line output tube operating voltage; Ts is the line normal time, Ly is the line deflection coil inductance. When the line frequency fH increases, the line cycle TH must be reduced. Because of Ly and