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大同 V32M300 液晶電視可開機無畫面。 (P0016)

Repair & maintain
Repair Title大同 V32M300 液晶電視可開機無畫面。
RSNP0016
StatusReturn
Maintain Date2019/05/09
Next Maintain2019/11/05
Gallery
大同 V32M300 液晶電視可開機無畫面。
大同 V32M300 液晶電視可開機無畫面。
大同 V32M300 液晶電視可開機無畫面。
Features
DateBrand/ModelWarranty
液晶電視TaTung
V32M300
    --
    Repair History
    DateContent
    2019-05-10故障問題:大同 V32M300 液晶電視可開機無畫面,屏幕上沾黏AB膠。
    檢測結果:判定為 LED 背光板有問題,輸出電壓只有 0.3V,背光短路測量為斷路,應該是部份燈芯燒毀。
    維修處理:屏幕上沾黏AB膠刮除,拆開背光板實測有兩棵燈珠斷路,一棵燈珠短路,更換整組代用背光條,燈珠位置稍有差異,將反光片挖出新孔距;更換 LED 主控晶片,完修。

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