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LCD TVs - LED

Panasonic TC 32A400 TV fault

Dany Daniel
hace 5 años
hace 5 años
Hello I have a Panasonic TC 32A400 TV which standby LED turns on and off 3 times according to error code and breaks in any of the sub-sources. I check and confirm that the sub-sources are activated and protected. Since the signal of SUB ON falls and checked resistance and diodes in this area and I see nothing wrong. If you can advise me, I thank you Thank you.
sanfalla
sanfalla
1.821
hace 5 años
hace 5 años
start the power source manually
Dany Daniel
hace 5 años

Sanfalla tell me if it is bridging with a 1K resistor I entered 5.3v of standby and power ON.

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sanfalla
sanfalla
1.821
hace 5 años

that's right my pana

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Dany Daniel
hace 5 años

I had already done it and showed no voltages but I repeat the test and comment.

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sanfalla
sanfalla
1.821
hace 5 años

hit it again maybe something happened to you or I don't connect well

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Dany Daniel
hace 5 años

Ok I tell you this source of power starts by connecting the resistance to the SUB ON pin so it didn't start me before.
The test was performed again and the voltages remained stable. The fault would already pass in the main.

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sanfalla
sanfalla
1.821
hace 5 años

This is how little brother you already know that the fault is not at the source and it is the main one that is damaged and you must replace since there is no information about it .....

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Dany Daniel
hace 5 años

Main change was made and the fault continues

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sanfalla
sanfalla
1.821
hace 5 años

well and then ..... you said that the power source starts making the bridges you will have that main damaged

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Dany Daniel
hace 5 años

Well I share the experience after doing tests at the source and following the error of failures in the service manual and the help in the forum all pointed to the Main which was changed but followed the error.
Finally I decided to review everything and not focus only on the fault marked by the manual. I check the LEDS and surprise 3 LEDS out of service maintenance and SOLUTION.

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Dany Daniel
hace 5 años
hace 5 años
Thanks for all the collaboration.
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