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电视机该机小信号处理电路采用TB1238AN,CPU采用87CS38N—3CN6,音、视频选择采用TC4052BP,AV/TV转换电路采用TB1219AN。有关电路被I2C总线控制。最初故障为“三无”,经查为逆程电容C357(0.022μF/400V)内部开路,引“起行管”击穿,同时给行供电的R358烧断。将上述元件更换后开机
TV The machine uses a small signal processing circuit TB1238AN, CPU using 87CS38N-3CN6, audio and video selection using TC4052BP, AV / TV conversion circuit using TB1219AN. The circuit is controlled by the I2C bus. The initial failure of the “three noes”, the investigation for the reverse capacitor C357 (0.022μF / 400V) internal open circuit, lead “pipe” breakdown, while giving power to the R358 blown. After the above components change the boot