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(一)LA76832/76810机心“黑屏”速修卡(见表1)彩电灯丝供电电压正常,无光栅、有伴音、无图像、(无字符显示,但关机瞬间有光栅闪一下。暂且调高加速极电压,这时因不同的机心及其不同故障部件而产生不同的故障现象:(1)可能荧光屏出现光栅,且有满屏回扫线;(2)可能荧光屏出现光栅,
(A) LA76832 / 76810 movement “black” speed repair card (see Table 1) Color TV filament supply voltage is normal, no grating, with sound, no images, (no character display, but the moment there is raster flash off. Accelerate the pole voltage, then due to different movement and its different failure parts and produce different symptoms: (1) may appear on the screen grating, and full screen flyback line; (2) may appear on the screen grating,