十年来,笔者对于场不同步故障检修过数百台,检修中发现只要是TA两片机,不管是什么牌子的,多少厘米(英寸)的,凡属场不同步故障,将同步电位器外壳与地断开(将电位器的金属外壳翘起不焊),不用更换,故障立即消失,真正做到事半功倍、立竿见影之效。同行在检修时往往将电位器拆下,测量是好的,装上去又不好,使检修走入误区。根据自己的检修统计,发现TA两片机出现场不同步故障中90％故障属本文所述,电位器与地之间漏电所致。 Over the past decade, the author of the field does not sync troubleshooting over hundreds of overhaul found that as long as the TA two-chip, no matter what brand, how many centimeters (inches), where the field is not synchronous fault, the synchronous potentiometer shell Disconnected from the ground (the metal case of the potentiometer is tilted away from welding), no replacement is needed, and the fault disappears immediately, and the effect of getting more and more done with immediate effect is achieved. Peer in the repair often remove the potentiometer, the measurement is good, not good to install, so that maintenance into the erroneous zone. According to their own maintenance statistics, found that two machines out of TA field out of sync failure of 90% are described in this article, the potential leakage between the ground due.