长虹PF29D9型彩电图暗故障检修
APPLIANCE REPAIRING（2009）
Abstract
故障现象:一台长虹PF29D9型(CH-10机芯)彩电,小信号处理芯片为TDA8839.观看过程中出现图像变暗的情况,也没有什么明显的规律,持续的时间也不长,或闪动,或几十秒,几分钟,十几分钟不等.
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