长虹changhongG2532有伴音无光栅,开机检查灯丝亮,高压包8脚ABL端3V,无光栅这电压不对低,该点有27V提供电压,查27V无电压,R512A开路用一2W1欧换上开机为一条亮线,检查N401,已经坏换一TA8427和C405 50V/100UF开机一切正常. |
|小黑屋|最新贴|维修网
( 粤ICP备09047344号 ) 
GMT+8, 2025-5-2 02:13 , Processed in 0.433001 second(s), 22 queries .
Powered by Discuz! X3.4
Copyright © 2001-2021, Tencent Cloud.
