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LCD TVs - LED

TV AOC Model LE32H1352 the source is damaged and does not turn on

Televisor Aoc LE32H1352

Televisor Aoc LE32H1352

18 Soluciones
48 Reparaciones
enigmahernandez
hace 5 años
hace 5 años
Good morning everyone, I have an AOC TV, whose model is LE32H1352, for unknown reasons the source is damaged and now does not turn on. This model has no Service Diagram or I could not find it, it has damaged a voltage regulation IC but it is in the primary stage of AC, my idea is to replace the source with a universal one to have the 24 and 12 volts, the 5 volts and other voltages to power the circuits. If someone can provide me with the voltages of the connectors I will be very grateful, or the service manual since I have put universal sources and I have not had problems with it, I want to discard the inverters and other circuits since the source comes with everything and the Mainboard These are the pictures ¡' IMG_20180413_081412049.jpg [1.03mb] https://cdn2.yoreparo.com/uploads/imagen_post/0003/68/f9b68e68c9d14c97dbcd383a358fdb45950c431a.jpeg" alt="" /> [img] https: // cdn2.yoreparo.com/uploads/imagen_post/0003/68/bd11352ac1145a099ae696a57b42fb063e24eccf.jpeg[/img[ What I am looking for are the voltages of the PJ2 connectors and the volts of the PT1 transformer, since those voltages go directly to the PD6 PD7 PD8 diodes and then I can adapt a universal source, if someone can give me the values in voltages I will appreciate it
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Natas.cu
Natas.cu
Natas.cu
490
hace 5 años
hace 5 años
Good night. Check here. https://elektrotanya.com/haier_32d3000ba_chassis_msd3393_led_tv.pdf/download.html https://revolutiondac.blogspot.pe/search/label/Fuente Greetings and comments.
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enigmahernandez
hace 5 años

Thank you for your comment, if it is similar and I already adapted the power source

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TobíasTv
TobíasTv
TobíasTv
13.721
hace 5 años
hace 5 años
Hi Enigma. It seems to me or PC6 is short, clean well and use a magnifying glass, I remember a case of those that was solved with a short there
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eldjtwity
hace 5 años

Excellent remarks .. congratulations

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TobíasTv
TobíasTv
TobíasTv
13.721
hace 5 años

Hi Seb12, paste the topic link and check it out, I'm not taking new topics

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Seb12
Seb12
Seb12
967
hace 5 años

Thank you, I know you're having a hard time with more reason I thank you for this.
I think I've screwed up with this solution, I told him to stop until further notice
https://yoreparo.com/tv/televisores/lcd/led/preguntas/5917665/tengo-un-lcd-noblex-32

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enigmahernandez
hace 5 años

Well, repairing that short by putting a 104nF ceramic capacitor damaged the power source and now it does not turn on ... The damaged chip corresponds to the primary of the transformer, a chip that automatically regulates the voltage, I do not get it so I wanted to adapt a universal source , hence I want to know the voltages of the PT1 transformer secondary to put an external source there

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TobíasTv
TobíasTv
TobíasTv
13.721
hace 5 años

hello enigma, what country are you from? you can put a top or you can put a modulito of power to the source, here in Argentina you sell both

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enigmahernandez
hace 5 años

But I'm from Colombia, not from Argentina

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Javier Pineda
hace 5 años
hace 5 años
Hello enigamahernandez I am working on that same TV only that this LED illumination of the screen does not turn on but I have verified the ceramic capacitor that your card has burned and is 10uf is of the same value of pc129 I have burned the pc13 I think it is the same value as the other two greetings I hope you serve or serve someone else
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enigmahernandez
hace 5 años

Can you measure the voltages of the power source ??? preferably those in the transformer in the secondary and after the DIODES, to adapt a source of power, I would greatly appreciate it.

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Javier Pineda
hace 5 años

hello if tomorrow morning I share them because thanks to GOD I already have it working replace the pc13 capacitor that was the one that was short with a ceramic of 0.1 uf ... but in your source what are the components that are damaged maybe you I can help you on Monday I deliver that work I would only have tomorrow to help you

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Javier Pineda
hace 5 años

hello ... I took a reading and I noticed that it only occupies a main voltage of 13.37 volts in standby and when it is on it drops the voltage to 13.05 in the image I leave you where those 13.37 volts are although I know that you will understand that I tell you in the diodes but to make it more complete the attached and another thing you must remove those three diodes on the other hand you will always have to clean well where you have the smd condenser burned remove the carbon well because if you leave it there it will act as a resistor and the capacitor replace it with one of 10uf x 35v or 25v would be fine

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Javier Pineda
hace 5 años

I have a problem, I don't have the option of uploading the image, but the diodes you know are the p06 p07 p08 that you have to remove greetings !!!!!

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enigmahernandez
hace 5 años

You can upload the photos to mega.nz, upload them to photobucket.com and share the links. This way I can raise this TV that I have been running for months ... Thanks for the voltages, but if you could tell me where exactly you have those voltages, or if it is the internal transformer voltage from where you took reading

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Javier Pineda
hace 5 años

Here is https://mega.nz/#!ekFhlSAZ!oaNysPbBphHG1wpfncoPpdnNPCTrM7mFIosDyHHRHPg

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Lorenzo Espinoza
hace 5 años

Hello, motorcycle v3t, I have the same problem with an AOC that there is no lighting, you point out, that you replaced the pc13 with a ceramic of 0.1 microfarads, as you found out the value of the surface condenser.

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Javier Pineda
hace 5 años

investigating in other pages find out the value have confidence if it is the same card walk of 10

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Lorenzo Espinoza
hace 5 años

Thanks for the reply; But I must have another problem. The voltage that feeds the lighting LEDs only reaches 12 constant volts, I changed the capacitors of pins 6 and 8 of the OB3350 IC and the voltage does not change. If someone had the diagram and could share it, it would be a great help.

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enigmahernandez
hace 5 años

Thanks for the photo, I already have the image and I will see how I adapt it and again thanks for your advice

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Javier Pineda
hace 5 años

You're welcome a taste comment results when you've done it

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enigmahernandez
hace 5 años

To move forward (after 5 months) I tell you that the power source uses a CHIP LNK6777 which is a high-power "digital" regulator that controls the voltage output of a transformer, it is like a mosfet. The point is that it is a simple power source of 13.2 volts before the diodes and 12.0 volts with 2.5 amps at the end.
I'm about to put a power supply of computer (ATX) black (0V) and yellow (12V) cables

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Javier Pineda
hace 5 años

Very good enigma luck

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enigmahernandez
hace 5 años

I update:
The Mosfet (PQ3) P8010BD is burned
The power source suits you a 12-volt DC 2.5 amp

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Javier Pineda
hace 5 años

It was a good short anigma

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enigmahernandez
hace 5 años

LADIES ... UPDATE ... A power source of 12.3 Volts should be set to a maximum of 12.9 volts DC of 2.5 amps. I put an ATX computer power supply of 350Watts yellow wire and black wire. Place the cables instead of a PC3 capacitor, to their respective poles ... With that remains

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heineken22
hace 5 años
hace 5 años
Hi Enigma, I have the same TV, same type, same model, the Voltage before the diodes is 13.3Vac and after the diodes is 12.9Vdc. Greetings.
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enigmahernandez
hace 5 años

Thank you very much, for those data I will see if I can make a "universal source" for that TV and put a "Universal" inverter
Would it happen to be too much to ask if you have the source diagram?

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heineken22
hace 5 años

Buuu, much dear. I don't have it, I just want you to do well with your alternative source, if it works for you, can you tell me how much current the TV absorbs? Cheers

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Javier Pineda
hace 5 años

With an adjustable source of about 10 amps in this case it would help one to see how many amps they consume and have them search or manufacture one with a percentage above the amps that they use so that they do not work to the limit and do not deteriorate quickly greetings

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enigmahernandez
hace 5 años

Well, I want to see how it goes, this afternoon and I comment

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Mauricio Morales
hace 5 años
hace 5 años
Hello people, @enigmahernadez, sorry to bother you, I have the same case with the same TV, it would help me a lot if you briefly or better explain a small and simple diagram of the external source that you are going to adapt, thank you very much.
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enigmahernandez
hace 5 años

Having voltage of the partner that provided me with the value, I remove the Transformer, and to its secondary I follow the track and remove the rectifier diodes and electrolytic capacitors, there I will place the transformer, I have not done it because I have other repairs but I will cheer up today In the afternoon I have it stored there and I will take pictures of how the process is going.

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Mauricio Morales
hace 5 años

Excellent @enigmahernadez, I did as the partner told you, just lift the rectifier diodes and place a 14v 3.4a switch source and the TV turns on, shows the logo, which is a philips, and degrades to dark gray almost as if It was off, but apparently it works because I got the AOC firmware and I charge it perfectly, but it continues with the screen, it does it a few seconds after turning on, I think it must be protected by some short LED or I am making the connections wrong, I look forward to your photos, thank you very much, these days I will check the LEDs.

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Mauricio Morales
hace 5 años

I also got the LNK6777 and I'm going to try it, but since I know it came with a very strong voltage stroke, I think the chopper is blown, so I opted for the external source while waiting for the LNK677

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Mauricio Morales
hace 5 años

@enigmahernadez, excuse me for being so insistent, would you be able to post photos and / or a simple diagram of how you adapted the external source of 12volts? From already thank you very much.

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enigmahernandez
hace 5 años

Just remove the transformer from the board, the secondary pins there I put the voltage cables from the external source, I put a 12-volt adapter from an external source of LCD monitor, it worked fine, instead of diodes I put jumpers on wire

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enigmahernandez
hace 5 años

LADIES ... UPDATE ... A power source of 12.3 Volts should be set to a maximum of 12.9 volts DC of 2.5 amps. I put an ATX computer power supply of 350Watts yellow wire and black wire. Place the cables instead of a PC3 capacitor, to their respective poles ... With that remains

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P4T0_77
P4T0_77
P4T0_77
15
hace 5 años
hace 5 años
and could you solve something? I have one that does not turn on too, I found some burnt resistors and change but it remains the same, I have to keep trying
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enigmahernandez
hace 5 años

At the moment I could not solve it, it has a damaged mosfet, but that is why I have a source of power and it worked very well.

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MIGUEL R.LL.
hace 5 años

What was Enigma did you solve your problem?

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P4T0_77
P4T0_77
P4T0_77
15
hace 5 años

Will they have pictures of how to adapt a power source?

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enigmahernandez
hace 5 años

I adapted a source of power, it worked

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P4T0_77
P4T0_77
P4T0_77
15
hace 5 años

Enigma, would you be so kind as to tell me the values of the source? or how to do it?

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enigmahernandez
hace 5 años

The power supply that I put is 12 volts reguladom instead of diodes I put bridges, the source take it out of an LCD monitor.

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enigmahernandez
hace 5 años

LADIES ... UPDATE ... A power source of 12.3 Volts should be set to a maximum of 12.9 volts DC of 2.5 amps. I put an ATX computer power supply of 350Watts yellow wire and black wire. Place the cables instead of a PC3 capacitor, to their respective poles ... With that remains

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MIGUEL R.LL.
hace 5 años
hace 5 años
Did you turn on the screen? If you failed to illuminate the screen, it is because turning on the TV raises the voltage from 12v to 24v, greetings from Peru.
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enigmahernandez
hace 5 años

That was the inconvenience ... I had to calculate with another source of power gradually increasing the value of the voltage and I work at 23.5 volts. Thank you

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tapon967
tapon967
tapon967
236
hace 5 años
hace 5 años
download the service manual and good luck https://www.manualslib.com/manual/829328/Aoc-Lc32w163.html?page=54#manual
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tapon967
tapon967
tapon967
236
hace 5 años

It is from a source that can guide you and see the outputs of the voltages

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enigmahernandez
hace 5 años

[/b] No it's not that model, it doesn't have the components or the similar connectors. I thank you very much for the attempt. If anyone has that model or knows about the voltages in the PT1 Transformer, I will thank them [/b]

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tapon967
tapon967
tapon967
236
hace 5 años

HOW I TOLD YOU IS SIMILAR TO ORIENT YOU

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enigmahernandez
hace 5 años

LADIES ... UPDATE ... A power source of 12.3 Volts should be set to a maximum of 12.9 volts DC of 2.5 amps. I put an ATX computer power supply of 350Watts yellow wire and black wire. Place the cables instead of a PC3 capacitor, to their respective poles ... With that remains

Responder
enigmahernandez
hace 5 años
hace 5 años
My idea is to adapt a universal power source, because when repairing the one you mentioned, it damages the source and the integrated regulator, so I guess I can adapt a universal source of 12, 24, 3.3 Volts that I have, so I look for the output voltages of the transformer to put the universal source there.
Comentar
enigmahernandez
hace 5 años

LADIES ... UPDATE ... A power source of 12.3 Volts should be set to a maximum of 12.9 volts DC of 2.5 amps.
I put an ATX computer power supply of 350Watts yellow wire and black wire.
Place the cables instead of a PC3 capacitor, to their respective poles ... With that remains!

Responder
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