机型:海信牌TC2919KB、TC2930K和TC2518KB 故障与检修:接通电源后,约2分钟后自动关机。本想用万用表测一下关机后的参数,谁知表笔刚碰到元件,就听到哧的一声,机器又恢复了正常。这时再测其参数,一切正常,敲击线路板也不关机,说明没有接触不良。继续观察10分钟,又自动停机,还是想测一下参数,又是哧的一声,机器又恢复了正常。约40分钟后,再次自动关机。观察指示灯处于正常状态,表明 Model: Hisense TC2919KB, TC2930K and TC2518KB Faults and overhauls: After power on, about 2 minutes after the automatic shutdown. This would like to use a multimeter to measure the parameters after shutdown, who knows the pen just hit the components, you hear the sound of 哧, the machine has returned to normal. Then test its parameters, everything is normal, nor hit the circuit board shut down, indicating that there is no bad contact. Continue to observe the 10 minutes, and automatically shut down, or want to measure the parameters, but also 哧 sound, the machine returned to normal. After about 40 minutes, shut down again automatically. Observe the indicator light is in a normal state, indicating that