3.3 TBA950 东欧国家生产的电视机,如匈牙利的TA5301和波兰的625型黑白电视机都采用TBA950集成电路。它的主要功能是给行扫描提供振荡脉冲,给场扫描电路提供场同步脉冲。这类电视机经常出现的故障是场不同步,图象频繁地上下滚动。经检查发现TBA 3.3 TBA950 Television sets produced in Eastern European countries, such as the Hungarian TA5301 and the Polish Type 625 black-and-white TV, all feature the TBA950 integrated circuit. Its main function is to provide oscillation pulses to the line scan and field sync pulses to the field scan circuit. The frequent failure of such television sets is that the field is out of sync and images are frequently scrolled up and down. Upon examination found TBA