Author Topic: Samsung UE43RU7020KXXU  (Read 322 times)

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call me al

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Samsung UE43RU7020KXXU
« on: November 22, 2021,15:54:54 »
Hi all,have this Samsung ue43ru7020,not coming on ,disconnected the two flexi cables to the screen and the backlights come on.Is there any way to determine if the fault is the main board or the panel,even with either of the flexi leads connected still wont come on.

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Samsung UE43RU7020KXXU
« on: November 22, 2021,15:54:54 »

downunder

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Re: Samsung UE43RU7020KXXU
« Reply #1 on: November 23, 2021,04:08:27 »

Hi Al, Refit the flexies and disconnect the main from the p/supply. if the p/supply and backlights are OK, the backlights should come on and stay on. In theory, that means the main is faulty, but not always so - I've been caught before on these. Given that removing the flexies allows the backlights to work could also mean you have a faulty panel, because the flexies also feed an SOS signal back to the main, and you're negating that SOS by disconnecting the flexies. Bit of a catch 22. Does this model use 2 large flexies that go straight to the panel i.e. the T-con is incorporated on the main?                      Bruce

call me al

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Re: Samsung UE43RU7020KXXU
« Reply #2 on: December 03, 2021,15:11:28 »
Hi Bruce,apologies for taking so long to get back and thanks for your reply.Yes it has the two flexi cables,no tcon have left it in the hope that another similar one might come in so could try swapping boards,am suspecting its the screen but not sure :41:

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Re: Samsung UE43RU7020KXXU
« Reply #2 on: December 03, 2021,15:11:28 »

 

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