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TVs

How to activate lcd lg tv source

ELECTRÓNICA FCJ VENEZUELA

1.699

hace 5 años

Good afternoon companions as an asset, this source of a 32-inch lg brand LCD to test if the source delivers the voltages correctly.

20180403_174704[1].jpg[2.13mb]

20180403_174739 [1] .jpg [608.83kb]

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Natas.cu

490

hace 5 años

Good afternoon. Do you have the source model? Or the one on TV?
Greetings and comments.

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ELECTRÓNICA FCJ VENEZUELA

1.699

hace 5 años

This is the number of the Natas.cu friend card
eax37617801

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Victor E

65.783

hace 5 años



hace 5 años

be careful, the on-off pin must be connected by means of a 1 k resistor to the st5v pin, it can produce a short if you connect them directly.

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Natas.cu

490

hace 5 años

Good afternoon. The ON / OFF goes to the base of a transistor, which already has the R of 1K at the base. Anyway, it is worth clarification and thanks for the vote!
Regards.

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ELECTRÓNICA FCJ VENEZUELA

1.699

hace 5 años

Ok friends thank you, I will take the test and tell you the results.

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ELECTRÓNICA FCJ VENEZUELA

1.699

hace 5 años

Friends recommend me to use a bulb instead of the source fuse for more prevention or connect it to the test board?

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Victor E

65.783

hace 5 años

Didn't you still measure if you have the standby voltage? Does the source work or does it have a short? If there is no short to use the focus?

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ELECTRÓNICA FCJ VENEZUELA

1.699

hace 5 años

Ok Victor thanks, to review the main greetings thanks again for the support.

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Victor E

65.783

hace 5 años

Ok, greetings

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Natas.cu

490

hace 5 años

Good afternoon. Here is the source diagram: https://www.electronica-pt.com/esquema/lcd/eax37617801-psu-26326/ Connect the ON / OFF pin to 5VSTB. Greetings and comments.

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Victor E

65.783

hace 5 años

Go my like. Greetings

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ELECTRÓNICA FCJ VENEZUELA

1.699

hace 5 años

If the stby is present Victor but as the source and the TV was manipulated in another workshop I want to take all possible forecasts to test the source.

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Victor E

65.783

hace 5 años

If the st-by is present the source is working, use protection series in these sources, humm, because sometimes they do not start with serial focus, unless you use 300 watts or more.

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ELECTRÓNICA FCJ VENEZUELA

1.699

hace 5 años

Ok Victor will follow his advice and start the source with the 1K R between on / off and stby 5v

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ELECTRÓNICA FCJ VENEZUELA

1.699

hace 5 años

Good afternoon companions, I have already carried out the test and 10.3 volts appear where it says 12 and 7.5 volts where it says 6. Those are the voltages that appear.

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Victor E

65.783

hace 5 años

You have already been told that the source starts.connect the main board if the on-off voltage arrives, if not, the problem is in the main board.

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ELECTRÓNICA FCJ VENEZUELA

1.699

hace 5 años

If you are right, the problem should be the main Victor now that 3.4 volt voltage that is seen and the source connector should not appear because when everything is connected it does not turn on the stby led.

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Victor E

65.783

hace 5 años

the pilot LED is switched on by the main source. When connecting, it already works. I repeat it again, if the main does not work for more than the source is fine, the TV does not start. Measure voltages on the main.

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