BENQ 4K LED TV 43JR700 there is sound but no videoTeardown&Fix Disassembly&Repair

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BENQ 4K LED TV LCD TV｜There is sound but no video DIY maintenance, disassembly and replacement of diodes, broken faults, damage repair, disassembly and replacement
Record Sharing｜broken BENQ 4K LED TV 43JR700 Teardown&Fix Disassembly&Repair
Excuse me, English Caption is used google translator to translate by me.
Please correct me if there is any grammatical or other mistakes.
Please forgive me if I do anything wrong. Thank you.
This is a video that learns and grows from each other, I hope you will like it
This is a mutual learning video. Hope you will like.
※Correct Caption: Modify [there was no sound and no shadow] to [there was sound but no shadow]
00:06:44--00:06:50
Song: Warriyo - Mortals (feat. Laura Brehm) [NCS Release]
Music provided by NoCopyrightSounds
Free Download/Stream: ncs.io/mortals
Watch: • Warriyo - Mortals (fea...
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• Gamela
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[@user-wh7sl7yq1e]

有在修電視嗎？一樣有聲無影，電視5O寸，可報價。

[@yingyingjuan]

😂不好意思，我沒在修理，這個是之前家裡電視剛好壞掉，修理時一起拍的，謝謝您的支持

[@vcheung18]

我的lg電視機沒有畫面之後, 我關掉他 再重新開過, 又會有畫面有聲音, 請問哪裏壞咗?

[@yingyingjuan]

@@vcheung18 據我所知，如果不是主板的問題，應該就是電視裡面的LED燈條換掉(拆開後盡量找同品牌型號的LED燈條)，只是換的時候面板要很小心，面板破了的話也不用修了😅

[@user-xg1tw1xg9g]

請問有影像沒聲音是什麼問題呢？