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松下J25、J27录像机采用GⅡ型机芯,它与L15、F55等GI型机芯相比较,多使用了一只倒放电机,使得倒放录像转入过程更为迅速。而J系列中的J25、J27电路几乎相同主要区别于J27多增加了卡拉OK及N制3.58录放功能的部分电路。两机故障特点及维修流程基本类似,不过J25故障率相对比J27高出许多,下面着重介绍该机种易发软故障的分析与维修。
Panasonic J25, J27 recorders using G Ⅱ-type movement, which with L15, F55 and other GI-type movement compared to the use of a more flip motor, making the process of turning the video back more quickly. The J series J25, J27 circuit is almost the same as the main difference between the more added J7 Kara OK and N 3.58 part of the recording and playback circuitry. Two machine fault characteristics and maintenance process is similar, but J25 failure rate is much higher than the J27, the following focuses on the aircraft prone to soft fault analysis and repair.