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da xing dian zi you xi ji wei xiu san li
Author(s): 
Pages: 26
Year: Issue:  6
Journal: Family Electronics

Keyword:  显像管故障现象极电压大型印刷板维修无光栅图像地线断裂;
Abstract: <正> 1.一台大型电子游戏机,故障现象为有声音无图像。测显像管各极电压正常,检查为显像管管脚的印刷板上地线断裂,导致无光栅,焊好后,开机光栅正常。
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