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UA55B8000XF
Service manual
Samsung UA55B8000XF Service Manual page 28
Samsung led tv service manual
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4-1-8.无声音
征兆
-视频正常,但无声音。
-当扬声器连接断开或损坏时
主要检查点
-当主板的声音处理部分失去功能时
-扬声器损坏。
小心
在 PD 板上工作之前,必须断电。
诊断
无声音
是
检查声音源并检查声音接线
的连接是否正常?
是
R3069、R3071 上是否有信号
出现?
是
IC2002的管脚27、28、29
的输出是否有数字数据出现?
是
CN2001 的管脚 1~4 的输出
是否有数字数据出现?
是
检查 LVDS 接线是否正确?
是否需要更换液晶显示屏?
否
输入声音信号
检查接线的连接。
否
检查 CN3005,并更换主印
刷电路板组件。
否
更换 IC2001 或主印刷电
路板组件
否
检查 IC2002
更换主印刷电路板组件
否
请联系技术支持。
4. 故障排除
4-21
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