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LCD TVs - LED

TV noblex 24 ld839ft does not turn on sometimes it does

ramon71

hace 5 años

I have a tv NOBLEX model led 24 model 24ld839ft does not turn on and makes like a sound. You unplug it and repeatedly pressing the power out there starts

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Maque2002

2.935

hace 5 años

Check power capacitors, sure you have some untrained.

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TobíasTv

13.721

hace 5 años

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hace 5 años

Hello, Mark, Ramon, welcome, I know what your TV has, when it does not start you disconnect the lvds connector, if so it starts, obviously without image you have bad the 5 volt step down source that is next to the lvds connector you can make a patch with a step down module https://articulo.mercadolibre.com.ar/MLA-621167834-lm2596-fuente-step-down-dc-dc-ajustable-125v-35v-3a-arduino-_JM Tobias greetings

I think it is this

In mundotecnico you can get premium and download the diagram of this TV and many more, it is a serious site without traps https://www.mundotecnico.info/viewtopic.php?t=157

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ramon71

hace 5 años

FORGIVENESS FOR MY IGNORANCE, THE LVDS CONNECTOR IS THE BIG CONNECTOR THAT GOES TO THE DISPLAY

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TobíasTv

13.721

hace 5 años

Hi Ramon, excuse me, I thought you were a technician, if exactly that connector ... the only thing that is going to put you uphill the practice that indicates you

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ramon71

hace 5 años

I have been repairing TV for years but the others of trc and I am entering the topic lcd led I do it as a second job or jobby.

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TobíasTv

13.721

hace 5 años

give it, when it does not start disconnect the screen if it starts you know, I uploaded a good photo of the sector and I indicate how to proceed

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ramon71

hace 5 años

I disconnected the screen and it remained the same. I measured the 12 volts and they are. Change the electrolytic 1000 * 35 of the source and remain the same.

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TobíasTv

13.721

hace 5 años

note that at one end of the screen connector have to reach 5 volts, what a pity that you do not upload a photo

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TobíasTv

13.721

hace 5 años

The two times I spent your picture was the 5-volt source that is in the main right of the connector, I upload an image and the diagram, I think it is the one that I will upload, see if the codes of the components match those of the plate

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ramon71

hace 5 años

I measured the 5v and they give me 5.16 with the digital one and they remain stable and once I started it stayed at that voltage and the photo you sent me is the same plate and source

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TobíasTv

13.721

hace 5 años

the issue is what happens when it does not start, touch the IC to see if it heats up

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TV noblex 24 ld839ft does not turn on sometimes it does

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