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故障现象使用长海VF-2215放像机时,刚开机工作正常,20分钟左右自动关机;之后,一切操作失灵。电源不再能开启,磁带不得退出;除非拔掉电源插头,冷却几分钟后才可将磁带取出;若不拔掉电源插头,则始终不能恢复正常。检查分析由于每次开机都能正常工作一段时间,说明本机大部分元件还是良好的,只有个别元件不良;又因为冷却后可恢复正常,说明机内有发热元件(值得怀疑),并且一定是怕热的元件,首先是半导体元件(阻
Fault phenomenon When using the Changhai VF-2215 player, just boot normally, about 20 minutes automatically shut down; after all the operation fails. The power can no longer be turned on, the tape can not be exited; unless unplugged, cooled after a few minutes to remove the tape; if not unplug the power plug, you can not return to normal. Check analysis Since each boot can work for some time, indicating that most of the components of the machine is still good, only the individual components of the poor; and because the cooling can be restored to normal, indicating the machine has heating elements (doubtful), and must be Fear of hot components, the first is the semiconductor components (resistance