故障现象:据用户说,一开机听到有高压声,随即听到关机时的放电声,说是小毛病。我随时试开机听到“沙”一声高压声,随即听到关机的高压放电声,这时红色指示灯亮着,说明电路保护性关机(为自动待机状态)。这时按一下“频道∨/∧”键,又能听到以上的声音。打开后盖,一看是三洋A3机 Symptom: According to the user, a boot heard high pressure sound, then hear the discharge sound when the shutdown, that is a small problem. At any time I try to turn on the machine to hear the “sand” a high pressure sound, then heard the high voltage discharge sound shutdown, then the red light is on, indicating the circuit protection shutdown (automatic standby state). At this time click the “channel ∨ / ∧” key, but also to hear the above sound. Open the back cover, a look at the Sanyo A3 machine