故障现象:每次“冷机”开机时有瞬间彩色出现,约3秒钟后出现短白线,短白线由短到长,由局部扩大到全画面,4秒钟后短白线消失,屏幕为绿光栅,整个画面缺红、蓝。用遥控器把色度降至约中间值时,绿光栅消失,画面无彩色,但是有清晰的黑白图像,伴音正常、AV/TV转换正常。 Symptoms: Every time the “cold machine” boot moment color appears, about 3 seconds after the short white line, short white line from short to long, expanded to full screen from the local, short white line disappeared after 4 seconds, The screen is a green grating, the whole picture is red, blue. With the remote control to reduce the chromaticity to about the middle value, the green grating disappears, the picture has no color, but a clear black and white image, sound normal, AV / TV conversion is normal.