| 故障表现为：自动关机 检修与分析：开机试机图声正常，测量各个电压正常，热机后出现自动关机，断电在开故障反复出现，热机后测量电压发现12-5VIC输出偏低为4.5V,试更换U5后修复。 |
|Archiver|手机版|家电维修论坛
( 蜀ICP备19011473号-4 川公网安备51102502000164号 )
GMT+8, 2025-5-5 18:55 , Processed in 0.122242 second(s), 18 queries .
Powered by Discuz! X3.5
© 2001-2025 Discuz! Team.
