自从电视台重新改装有线电视网后,一户东芝2939XP画中画彩电图像清晰度变差,主、副画面上都有严重的网纹干扰,影响正常收看。另外,用户在插拔有线电视插头时感觉插座带电,用试电笔检测,电笔氖管发光,于是,用户心存疑虑到处求医,但始终没有排除故障。用户以为自己的电视机患了不治之症,非常着急,据一位修理工说,该电视机可能是由于改装有线电 Since the television station to remodel cable television network, a Toshiba 2939XP picture in picture color TV picture clarity deteriorated, the main picture and vice picture have serious moire interference, affecting the normal viewing. In addition, the user plug in the plug when you feel the plug socket is charged with a test pencil test, electric pen neon light, so users have doubts everywhere seeking treatment, but has never ruled out the fault. The user thought he had an incurable disease on his television set and was very anxious. According to a mechanic, the television set might have been modified